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Case 1 diagnosis: allergy bullying, clinical pearls.

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Case 1: A 12-year-old girl with food allergies and an acute asthma exacerbation

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Lopamudra Das, Michelle GK Ward, Case 1: A 12-year-old girl with food allergies and an acute asthma exacerbation, Paediatrics & Child Health , Volume 19, Issue 2, February 2014, Pages 69–70, https://doi.org/10.1093/pch/19.2.69

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A 12-year-old girl with a history of asthma presented to the emergency department with a three-day history of increased work of breathing, cough and wheezing. She reported no clear trigger for her respiratory symptoms, although she had noted some symptoms of a mild upper respiratory tract infection. With this episode, the patient had been using a short-acting bronchodilator more frequently than she had in the past, without the expected resolution of symptoms.

On the day of presentation, the patient awoke feeling ‘suffocated’ and her mother noted her lips to be blue. In the emergency department, her oxygen saturation was 85% and her respiratory rate was 40 breaths/min. She had significantly increased work of breathing and poor air entry bilaterally to both lung bases, with wheezing in the upper lung zones. She was treated with salbutamol/ipratropium and received intravenous steroids and magnesium sulfate. Her chest x-ray showed hyperinflation and no focal findings.

Her medical history revealed that she was followed by a respirologist for her asthma, had good medication adherence and had not experienced a significant exacerbation for six months. She also had a history of wheezing, dyspnea and pruritis with exposure to peanuts, chickpeas and lentils; she had been prescribed an injectible epinephrine device for this. However, her device had expired at the time of presentation. In the past, her wheezing episodes had been seasonal and related to exposure to grass and pollens; this presentation occurred during the winter. Further history revealed the probable cause of her presentation.

Although reluctant to disclose the information, our patient later revealed that she had been experiencing significant bullying at school, which was primarily related to her food allergies. Three days before her admission, classmates had smeared peanut butter on one of her schoolbooks. She developed pruritis immediately after opening the book and she started wheezing and coughing later that day. This event followed several months of being taunted with peanut products at school. The patient was experiencing low mood and reported new symptoms of anxiety related to school. The review of systems was otherwise negative, with no substance use.

The patient's asthma exacerbation resolved with conventional asthma treatment. Her pulmonary function tests were nonconcerning (forced expiratory volume in 1 s 94% and 99% of predicted) after her recovery. The trigger for her asthma exacerbation was likely multifactorial, related to exposure to the food allergen as well as the upper respiratory infection. A psychologist was consulted to assess the symptoms of anxiety and depression that had occurred as a result of the bullying. During the hospitalization, the medical team contacted the patient's school to provide education on allergy bullying, treatment of severe allergic reactions and its potential for life-threatening reactions with exposure to allergens. The medical team also recommended community resources for further education of students and staff about allergy bullying and its prevention.

Allergy bullying is a form of bullying with potentially severe medical outcomes. In recent years, it has gained increasing notoriety in schools and in the media. Population-based studies have shown that 20% to 35% of children with allergies experience bullying. In many cases (31% in one recent study [ 1 ]), this bullying is related directly to the food allergy. From a medical perspective, there are little published data regarding allergy bullying, and many health care providers may not be aware of the issue.

Allergy bullying can include teasing a child about their allergy, throwing food at a child, or even forcing them to touch or eat allergenic foods. Most episodes of allergy bullying occur at school, and can include episodes perpetrated by teachers and/or staff ( 2 ).

Allergy bullying can lead to allergic reactions, which may be mild or severe (eg, urticaria, wheezing, anaphylaxis), but may also lead to negative emotional consequences (sadness, depression) ( 2 ) and an overall decrease in quality of life measures ( 1 ). Adolescents commonly resist using medical devices, such as injectible epinephrine devices, and bullying may be a contributing factor for this ( 3 ). Attempting to conceal symptoms in a bullying situation may place children at risk for a worse outcome.

Physicians can play a key role in detecting allergy bullying and its health consequences. In many cases, children have not discussed this issue with their parents ( 1 ). Given the prevalence of bullying, its potential to lead to severe harm, including death, and the lack of awareness of this issue, clinicians should specifically ask about bullying in all children and teens with allergies. Physicians can also work with families and schools to support these children, educate their peers and school staff, and help prevent negative health outcomes from allergy bullying.

Online resources

www.anaphylaxis.ca − A national charity that aims to inform, support, educate and advocate for the needs of individuals and families living with anaphylaxis, and to support and participate in research. This website includes education modules for schools and links to local support groups throughout Canada.

www.whyriskit.ca/pages/en/live/bullying.php − A website for teenagers with food allergies; includes a segment that addresses food bullying.

www.foodallergy.org − Contains numerous resources for children and their families, including a significant discussion on bullying and ways to prevent it.

Allergy bullying is common but is often unrecognized as a factor in clinical presentations of allergic reactions.

Physicians should make a point of asking about bullying in patients with allergies and become familiar with resources for dealing with allergy bullying.

Physicians can play roles as advocates, educators and collaborators with the school system to help make the school environment safer for children with allergies who may be at risk for allergy bullying.

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• Published: 16 October 2014

A woman with asthma: a whole systems approach to supporting self-management

• Hilary Pinnock 1 ,
• Elisabeth Ehrlich 1 ,
• Gaylor Hoskins 2 &
• Ron Tomlins 3  

npj Primary Care Respiratory Medicine volume  24 , Article number:  14063 ( 2014 ) Cite this article

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A 35-year-old lady attends for review of her asthma following an acute exacerbation. There is an extensive evidence base for supported self-management for people living with asthma, and international and national guidelines emphasise the importance of providing a written asthma action plan. Effective implementation of this recommendation for the lady in this case study is considered from the perspective of a patient, healthcare professional, and the organisation. The patient emphasises the importance of developing a partnership based on honesty and trust, the need for adherence to monitoring and regular treatment, and involvement of family support. The professional considers the provision of asthma self-management in the context of a structured review, with a focus on a self-management discussion which elicits the patient’s goals and preferences. The organisation has a crucial role in promoting, enabling and providing resources to support professionals to provide self-management. The patient’s asthma control was assessed and management optimised in two structured reviews. Her goal was to avoid disruption to her work and her personalised action plan focused on achieving that goal.

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A 35-year-old sales representative attends the practice for an asthma review. Her medical record notes that she has had asthma since childhood, and although for many months of the year her asthma is well controlled (when she often reduces or stops her inhaled steroids), she experiences one or two exacerbations a year requiring oral steroids. These are usually triggered by a viral upper respiratory infection, though last summer when the pollen count was particularly high she became tight chested and wheezy for a couple of weeks.

Her regular prescription is for fluticasone 100 mcg twice a day, and salbutamol as required. She has a young family and a busy lifestyle so does not often manage to find time to attend the asthma clinic. A few weeks previously, an asthma attack had interfered with some important work-related travel, and she has attended the clinic on this occasion to ask about how this can be managed better in the future. There is no record of her having been given an asthma action plan.

What do we know about asthma self-management? The academic perspective

Supported self-management reduces asthma morbidity.

The lady in this case study is struggling to maintain control of her asthma within the context of her busy professional and domestic life. The recent unfortunate experience which triggered this consultation offers a rare opportunity to engage with her and discuss how she can manage her asthma better. It behoves the clinician whom she is seeing (regardless of whether this is in a dedicated asthma clinic or an appointment in a routine general practice surgery) to grasp the opportunity and discuss self-management and provide her with a (written) personalised asthma action plan (PAAP).

The healthcare professional advising the lady is likely to be aware that international and national guidelines emphasise the importance of supporting self-management. 1 – 4 There is an extensive evidence base for asthma self-management: a recent synthesis identified 22 systematic reviews summarising data from 260 randomised controlled trials encompassing a broad range of demographic, clinical and healthcare contexts, which concluded that asthma self-management reduces emergency use of healthcare resources, including emergency department visits, hospital admissions and unscheduled consultations and improves markers of asthma control, including reduced symptoms and days off work, and improves quality of life. 1 , 2 , 5 – 12 Health economic analysis suggests that it is not only clinically effective, but also a cost-effective intervention. 13

Personalised asthma action plans

Key features of effective self-management approaches are:

Self-management education should be reinforced by provision of a (written) PAAP which reminds patients of their regular treatment, how to monitor and recognise that control is deteriorating and the action they should take. 14 – 16 As an adult, our patient can choose whether she wishes to monitor her control with symptoms or by recording peak flows (or a combination of both). 6 , 8 , 9 , 14 Symptom-based monitoring is generally better in children. 15 , 16

Plans should have between two and three action points including emergency doses of reliever medication; increasing low dose (or recommencing) inhaled steroids; or starting a course of oral steroids according to severity of the exacerbation. 14

Personalisation of the action plan is crucial. Focussing specifically on what actions she could take to prevent a repetition of the recent attack is likely to engage her interest. Not all patients will wish to start oral steroids without advice from a healthcare professional, though with her busy lifestyle and travel our patient is likely to be keen to have an emergency supply of prednisolone. Mobile technology has the potential to support self-management, 17 , 18 though a recent systematic review concluded that none of the currently available smart phone ‘apps’ were fit for purpose. 19

Identification and avoidance of her triggers is important. As pollen seems to be a trigger, management of allergic rhinitis needs to be discussed (and included in her action plan): she may benefit from regular use of a nasal steroid spray during the season. 20

Self-management as recommended by guidelines, 1 , 2 focuses narrowly on adherence to medication/monitoring and the early recognition/remediation of exacerbations, summarised in (written) PAAPs. Patients, however, may want to discuss how to reduce the impact of asthma on their life more generally, 21 including non-pharmacological approaches.

Supported self-management

The impact is greater if self-management education is delivered within a comprehensive programme of accessible, proactive asthma care, 22 and needs to be supported by ongoing regular review. 6 With her busy lifestyle, our patient may be reluctant to attend follow-up appointments, and once her asthma is controlled it may be possible to make convenient arrangements for professional review perhaps by telephone, 23 , 24 or e-mail. Flexible access to professional advice (e.g., utilising diverse modes of consultation) is an important component of supporting self-management. 25

The challenge of implementation

Implementation of self-management, however, remains poor in routine clinical practice. A recent Asthma UK web-survey estimated that only 24% of people with asthma in the UK currently have a PAAP, 26 with similar figures from Sweden 27 and Australia. 28 The general practitioner may feel that they do not have time to discuss self-management in a routine surgery appointment, or may not have a supply of paper-based PAAPs readily available. 29 However, as our patient rarely finds time to attend the practice, inviting her to make an appointment for a future clinic is likely to be unsuccessful and the opportunity to provide the help she needs will be missed.

The solution will need a whole systems approach

A systematic meta-review of implementing supported self-management in long-term conditions (including asthma) concluded that effective implementation was multifaceted and multidisciplinary; engaging patients, training and motivating professionals within the context of an organisation which actively supported self-management. 5 This whole systems approach considers that although patient education, professional training and organisational support are all essential components of successful support, they are rarely effective in isolation. 30 A systematic review of interventions that promote provision/use of PAAPs highlighted the importance of organisational systems (e.g., sending blank PAAPs with recall reminders). 31 A patient offers her perspective ( Box 1 ), a healthcare professional considers the clinical challenge, and the challenges are discussed from an organisational perspective.

Box 1: What self-management help should this lady expect from her general practitioner or asthma nurse? The patient’s perspective

The first priority is that the patient is reassured that her condition can be managed successfully both in the short and the long term. A good working relationship with the health professional is essential to achieve this outcome. Developing trust between patient and healthcare professional is more likely to lead to the patient following the PAAP on a long-term basis.

A review of all medication and possible alternative treatments should be discussed. The patient needs to understand why any changes are being made and when she can expect to see improvements in her condition. Be honest, as sometimes it will be necessary to adjust dosages before benefits are experienced. Be positive. ‘There are a number of things we can do to try to reduce the impact of asthma on your daily life’. ‘Preventer treatment can protect against the effect of pollen in the hay fever season’. If possible, the same healthcare professional should see the patient at all follow-up appointments as this builds trust and a feeling of working together to achieve the aim of better self-management.

Is the healthcare professional sure that the patient knows how to take her medication and that it is taken at the same time each day? The patient needs to understand the benefit of such a routine. Medication taken regularly at the same time each day is part of any self-management regime. If the patient is unused to taking medication at the same time each day then keeping a record on paper or with an electronic device could help. Possibly the patient could be encouraged to set up a system of reminders by text or smartphone.

Some people find having a peak flow meter useful. Knowing one's usual reading means that any fall can act as an early warning to put the PAAP into action. Patients need to be proactive here and take responsibility.

Ongoing support is essential for this patient to ensure that she takes her medication appropriately. Someone needs to be available to answer questions and provide encouragement. This could be a doctor or a nurse or a pharmacist. Again, this is an example of the partnership needed to achieve good asthma control.

It would also be useful at a future appointment to discuss the patient’s lifestyle and work with her to reduce her stress. Feeling better would allow her to take simple steps such as taking exercise. It would also be helpful if all members of her family understood how to help her. Even young children can do this.

From personal experience some people know how beneficial it is to feel they are in a partnership with their local practice and pharmacy. Being proactive produces dividends in asthma control.

What are the clinical challenges for the healthcare professional in providing self-management support?

Due to the variable nature of asthma, a long-standing history may mean that the frequency and severity of symptoms, as well as what triggers them, may have changed over time. 32 Exacerbations requiring oral steroids, interrupting periods of ‘stability’, indicate the need for re-assessment of the patient’s clinical as well as educational needs. The patient’s perception of stability may be at odds with the clinical definition 1 , 33 —a check on the number of short-acting bronchodilator inhalers the patient has used over a specific period of time is a good indication of control. 34 Assessment of asthma control should be carried out using objective tools such as the Asthma Control Test or the Royal College of Physicians three questions. 35 , 36 However, it is important to remember that these assessment tools are not an end in themselves but should be a springboard for further discussion on the nature and pattern of symptoms. Balancing work with family can often make it difficult to find the time to attend a review of asthma particularly when the patient feels well. The practice should consider utilising other means of communication to maintain contact with patients, encouraging them to come in when a problem is highlighted. 37 , 38 Asthma guidelines advocate a structured approach to ensure the patient is reviewed regularly and recommend a detailed assessment to enable development of an appropriate patient-centred (self)management strategy. 1 – 4

Although self-management plans have been shown to be successful for reducing the impact of asthma, 21 , 39 the complexity of managing such a fluctuating disease on a day-to-day basis is challenging. During an asthma review, there is an opportunity to work with the patient to try to identify what triggers their symptoms and any actions that may help improve or maintain control. 38 An integral part of personalised self-management education is the written PAAP, which gives the patient the knowledge to respond to the changes in symptoms and ensures they maintain control of their asthma within predetermined parameters. 9 , 40 The PAAP should include details on how to monitor asthma, recognise symptoms, how to alter medication and what to do if the symptoms do not improve. The plan should include details on the treatment to be taken when asthma is well controlled, and how to adjust it when the symptoms are mild, moderate or severe. These action plans need to be developed between the doctor, nurse or asthma educator and the patient during the review and should be frequently reviewed and updated in partnership (see Box 1). Patient preference as well as clinical features such as whether she under- or over-perceives her symptoms should be taken into account when deciding whether the action plan is peak flow or symptom-driven. Our patient has a lot to gain from having an action plan. She has poorly controlled asthma and her lifestyle means that she will probably see different doctors (depending who is available) when she needs help. Being empowered to self-manage could make a big difference to her asthma control and the impact it has on her life.

The practice should have protocols in place, underpinned by specific training to support asthma self-management. As well as ensuring that healthcare professionals have appropriate skills, this should include training for reception staff so that they know what action to take if a patient telephones to say they are having an asthma attack.

However, focusing solely on symptom management strategies (actions) to follow in the presence of deteriorating symptoms fails to incorporate the patients’ wider views of asthma, its management within the context of her/his life, and their personal asthma management strategies. 41 This may result in a failure to use plans to maximise their health potential. 21 , 42 A self-management strategy leading to improved outcomes requires a high level of patient self-efficacy, 43 a meaningful partnership between the patient and the supporting health professional, 42 , 44 and a focused self-management discussion. 14

Central to both the effectiveness and personalisation of action plans, 43 , 45 in particular the likelihood that the plan will lead to changes in patients’ day-to-day self-management behaviours, 45 is the identification of goals. Goals are more likely to be achieved when they are specific, important to patients, collaboratively set and there is a belief that these can be achieved. Success depends on motivation 44 , 46 to engage in a specific behaviour to achieve a valued outcome (goal) and the ability to translate the behavioural intention into action. 47 Action and coping planning increases the likelihood that patient behaviour will actually change. 44 , 46 , 47 Our patient has a goal: she wants to avoid having her work disrupted by her asthma. Her personalised action plan needs to explicitly focus on achieving that goal.

As providers of self-management support, health professionals must work with patients to identify goals (valued outcomes) that are important to patients, that may be achievable and with which they can engage. The identification of specific, personalised goals and associated feasible behaviours is a prerequisite for the creation of asthma self-management plans. Divergent perceptions of asthma and how to manage it, and a mismatch between what patients want/need from these plans and what is provided by professionals are barriers to success. 41 , 42

What are the challenges for the healthcare organisation in providing self-management support?

A number of studies have demonstrated the challenges for primary care physicians in providing ongoing support for people with asthma. 31 , 48 , 49 In some countries, nurses and other allied health professionals have been trained as asthma educators and monitor people with stable asthma. These resources are not always available. In addition, some primary care services are delivered in constrained systems where only a few minutes are available to the practitioner in a consultation, or where only a limited range of asthma medicines are available or affordable. 50

There is recognition that the delivery of quality care depends on the competence of the doctor (and supporting health professionals), the relationship between the care providers and care recipients, and the quality of the environment in which care is delivered. 51 This includes societal expectations, health literacy and financial drivers.

In 2001, the Australian Government adopted a programme developed by the General Practitioner Asthma Group of the National Asthma Council Australia that provided a structured approach to the implementation of asthma management guidelines in a primary care setting. 52 Patients with moderate-to-severe asthma were eligible to participate. The 3+ visit plan required confirmation of asthma diagnosis, spirometry if appropriate, assessment of trigger factors, consideration of medication and patient self-management education including provision of a written PAAP. These elements, including regular medical review, were delivered over three visits. Evaluation demonstrated that the programme was beneficial but that it was difficult to complete the third visit in the programme. 53 – 55 Accordingly, the programme, renamed the Asthma Cycle of Care, was modified to incorporate two visits. 56 Financial incentives are provided to practices for each patient who receives this service each year.

Concurrently, other programmes were implemented which support practice-based care. Since 2002, the National Asthma Council has provided best-practice asthma and respiratory management education to health professionals, 57 and this programme will be continuing to 2017. The general practitioner and allied health professional trainers travel the country to provide asthma and COPD updates to groups of doctors, nurses and community pharmacists. A number of online modules are also provided. The PACE (Physician Asthma Care Education) programme developed by Noreen Clark has also been adapted to the Australian healthcare system. 58 In addition, a pharmacy-based intervention has been trialled and implemented. 59

To support these programmes, the National Asthma Council ( www.nationalasthma.org.au ) has developed resources for use in practices. A strong emphasis has been on the availability of a range of PAAPs (including plans for using adjustable maintenance dosing with ICS/LABA combination inhalers), plans for indigenous Australians, paediatric plans and plans translated into nine languages. PAAPs embedded in practice computer systems are readily available in consultations, and there are easily accessible online paediatric PAAPs ( http://digitalmedia.sahealth.sa.gov.au/public/asthma/ ). A software package, developed in the UK, can be downloaded and used to generate a pictorial PAAP within the consultation. 60

One of the strongest drivers towards the provision of written asthma action plans in Australia has been the Asthma Friendly Schools programme. 61 , 62 Established with Australian Government funding and the co-operation of Education Departments of each state, the Asthma Friendly Schools programme engages schools to address and satisfy a set of criteria that establishes an asthma-friendly environment. As part of accreditation, the school requires that each child with asthma should have a written PAAP prepared by their doctor to assist (trained) staff in managing a child with asthma at school.

The case study continues...

The initial presentation some weeks ago was during an exacerbation of asthma, which may not be the best time to educate a patient. It is, however, a splendid time to build on their motivation to feel better. She agreed to return after her asthma had settled to look more closely at her asthma control, and an appointment was made for a routine review.

At this follow-up consultation, the patient’s diagnosis was reviewed and confirmed and her trigger factors discussed. For this lady, respiratory tract infections are the usual trigger but allergic factors during times of high pollen count may also be relevant. Assessment of her nasal airway suggested that she would benefit from better control of allergic rhinitis. Other factors were discussed, as many patients are unaware that changes in air temperature, exercise and pets can also trigger asthma exacerbations. In addition, use of the Asthma Control Test was useful as an objective assessment of control as well as helping her realise what her life could be like! Many people with long-term asthma live their life within the constraints of their illness, accepting that is all that they can do.

After assessing the level of asthma control, a discussion about management options—trigger avoidance, exercise and medicines—led to the development of a written PAAP. Asthma can affect the whole family, and ways were explored that could help her family understand why it is important that she finds time in the busy domestic schedules to take her regular medication. Family and friends can also help by understanding what triggers her asthma so that they can avoid exposing her to perfumes, pollens or pets that risk triggering her symptoms. Information from the national patient organisation was provided to reinforce the messages.

The patient agreed to return in a couple of weeks, and a recall reminder was set up. At the second consultation, the level of control since the last visit will be explored including repeat spirometry, if appropriate. Further education about the pathophysiology of asthma and how to recognise early warning signs of loss of control can be given. Device use will be reassessed and the PAAP reviewed. Our patient’s goal is to avoid disruption to her work and her PAAP will focus on achieving that goal. Finally, agreement will be reached with the patient about future routine reviews, which, now that she has a written PAAP, could be scheduled by telephone if all is well, or face-to-face if a change in her clinical condition necessitates a more comprehensive review.

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Pinnock, H., Ehrlich, E., Hoskins, G. et al. A woman with asthma: a whole systems approach to supporting self-management. npj Prim Care Resp Med 24 , 14063 (2014). https://doi.org/10.1038/npjpcrm.2014.63

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A case of uncontrolled asthma

Ömür aydin , m.d., cabir yüksel , m.d., aylin okçu heper , m.d., oya yildiz , m.d., șevket kavukc̦u , m.d., zeynep misirligil , m.d..

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Address correspondence and reprint requests to Ömür Aydin, M.D., Department of Chest Diseases, Division of Immunology and Allergy, Ankara University School of Medicine, 06100 Dikimevi, Ankara, Turkey

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A 48-year-old female patient with uncontrolled severe asthma was referred to our hospital for anti-IgE therapy. She was suffering with persistent wheezing and dyspnea after a severe asthma attack that had taken place 5 months previously. Her asthma had not been controlled with adequate asthma treatment, including budesonide at 320 μg + formoterol at 9 μg b.i.d. combination, montelukast at 10 mg/day, and oral steroids (30–40 mg/day of prednisolone), during this period. She was hospitalized for evaluation for anti-IgE therapy. Chest radiography revealed a left-sided hilar opacity. Fiberoptic bronchoscopy was performed and showed an endobronchial lesion obstructing the left lower bronchus lumen. Computed tomography also revealed a nodular lesion at the same location. The patient underwent left lower lobectomy and mediastinal lymph node dissection. Pathological examination concluded the diagnosis of typical carcinoid tumor. After surgery, her symptoms disappeared and she has had no recurrence. In conclusion, a diagnosis of severe asthma requires confirmation of asthma. Uncontrolled symptoms that linger despite aggressive therapy warrant evaluation to rule out other etiologies, such as a carcinoid tumor, before selecting new treatment options.

Keywords: Asthma, carcinoid tumor, intrabronchial tumor, pulmonary carcinoids, severe allergic asthma, typical carcinoid tumor, uncontrolled asthma

CASE PRESENTATION

A 48-year-old white woman, a housewife, was admitted to our tertiary clinic complaining of wheezing and dyspnea. She had been diagnosed with asthma 12 years previously and was well controlled using budesonide at 160 μg + formoterol at 4.5 μg b.i.d. combination therapy until 5 months before her visit to our clinic. She had had a severe asthma attack at that time, during which her wheezing was not well correlated with physical exercise and had persisted for several months. She was treated unsuccessfully with budesonide at 320 μg + formoterol at 9 μg b.i.d. combination, montelukast at 10 mg/day, and oral steroids (30–40 mg/day of prednisolone) during that period, and because her asthma had failed to come back under control, was referred to our clinic and hospitalized for evaluation for anti-IgE therapy. Her medical history was significant for appendectomy and hemorrhoidectomy. She was taking thyroid hormone for Hashimoto's thyroiditis and calcium tablets for osteoporosis.

Her vitals were stable with a heart rate of 76 bpm, a temperature of 36.5°C, blood pressure of 110/70 mmHg, and respiratory rate of 18/min on physical examination. Her examination was normal with the exception of decreased auscultation in the left lung. Her routine blood count was hematocrit, 38.2%; leukocyte, 9300; and erythrocyte sedimentation rate 13, mm/hr. Spirometry showed an obstructive pattern (forced expiratory volume in 1 second [FEV 1 ], 2.20 L [82%]; forced vital capacity [FVC], 3.45 L [110%]; FEV 1 /FVC, 60%). We were unable to show spirometric reversibility but were able to learn that during a previous hospitalization at another clinic, she had had a reversible airway obstruction. (prebronchodilator FEV 1 , 1.70 L [64%]; postbronchodilator FEV 1 , 2.01 L [75%]; reversibility, 17%). Her skin-prick test was positive for house-dust mites. Total IgE level was 115 kU/L. All data about the patient seemed to indicate that she could be a candidate for anti-IgE therapy. Chest radiography revealed a left-sided hilar opacity. For further evaluation, computerized tomography was performed and showed a 15-mm nodular lesion located in the left lower lobe bronchus ( Fig. 1 ). These radiological findings changed our management plan and diagnosis from asthma to a chest mass. A fiberoptic bronchoscopy was performed, which revealed an endobronchial lesion obstructing the left lower bronchus lumen ( Fig. 2 ). Biopsy was not performed because the lesion was highly vascularized and there was a risk of bleeding. Bronchial lavage fluid was removed from the left bronchus. Cytological examination of the lavage fluid was normal. The patient was transferred to the thoracic surgery ward for surgical treatment. She underwent left lower lobectomy and mediastinal lymph node dissection.

Thorax CT scan of the patient.

Bronchoscopic imaging of the carcinoid tumor.

Histopathological evaluation revealed an intrabronchial tumor, made up of monotonous cells with oval or round, finely granular nuclei and eosinophilic cytoplasm. No mitotic figures or necrosis was detected. The stroma was vascular and scant. Focal tumoral invasion of the lung parenchyma through the bronchial wall was also noted. Immunohistochemical staining indicated epithelial and neuroendocrine differentiation of the tumor cells with cytoplasmic positivity of pancytokeratin, chromogranin A, synaptophysin, and CD56. These findings established the diagnosis of a typical carcinoid (TC) tumor ( Figs. 3 and 4 ). The dissected peribronchial and regional lymph nodes showed no metastasis.

The tumor made up of uniform polygonal cells with finely granular chromatin in round nuclei and moderate amount of eosinophilic cytoplasm. There were no nuclear atypia, mitosis and necrosis, H&Ex400.

The cytoplasmic positivity of chromogranin-A in tumor cells, Chromogranin-Ax400.

After surgical resection, she was asymptomatic with budesonide at 160 μg + formoterol at 4.5 μg combination therapy and had a better pulmonary function (FEV 1 , 2.53 L [95%], FVC, 4.29 L [138%]; FEV 1 /FVC, 59%). Eight months after the operation, she had another asthma attack. She was hospitalized for asthma treatment and further evaluation of recurrent tumor. There was the presence of reversible airway obstruction, particularly in the small airways, on spirometric evaluation (FEV 1 , 2.24 L [85%] with 10% reversibility and forced expiratory flow at 25–75%, 1.63 L [49%] with 17% reversibility). Computerized tomography of the thorax, abdomen, and pelvis revealed no pathological finding. Bronchoscopy was performed and cytological examination of the lavage fluid result was normal. She had no recurrence for 2 years and her asthma is presently well controlled.

Today, achieving asthma control is indicated as the main goal of asthma management by international guidelines. Although most asthma patients can be treated and controlled with inhaled steroids, some patients remain uncontrolled despite adequate asthma therapy. In our country, nearly one-half of patients with asthma were found uncontrolled in a multicenter survey. 1 A systematic review should be conducted during the management of uncontrolled asthmatic patients, and it is imperative that this include first reconfirming that a diagnosis of asthma is appropriate and then evaluating for other coexisting diseases that may influence one's asthma control. Here, we report a case of uncontrolled asthma that was, after further evaluation, revealed to be a carcinoid tumor.

Pulmonary carcinoid tumors are the most frequently encountered benign tumors of the tracheobronchial tree and constitute 2–5% of all lung cancers. 2 , 3 TCs and atypical carcinoids (ACs) are subgroups of neuroendocrine tumors that are determined as low-grade and intermediate-grade tumors according to biological aggressiveness, respectively. TCs account for 90% of all carcinoids and 80% show up in a peripheral location. 4 Although TCs are low-grade tumors, regional lymph node metastasis can be seen in 10–23% of cases; this rate, however, is 40–50% for ACs. 5 This accounts for the higher 5-year survival rates seen in TCs when compared with ACs. 5 – 7

The most common symptoms of pulmonary carcinoid tumors are hemoptysis (caused by high vascularization), lower respiratory tract infections, cough, wheezing, and shortness of breath. 8 , 9 Some patients may be asymptomatic. There is usually a time gap from the onset of symptoms until diagnosis, and patients are often misdiagnosed with asthma. 6 , 10 – 13 There are a limited number of cases diagnosed as carcinoid tumor who had also received a true diagnosis of coexisting asthma. The patient we present here had already received a diagnosis of asthma proven by reversible bronchial obstruction, and it was for this reason that her symptoms of dyspnea and wheezing were first attributed to asthma. The differential diagnosis was expanded after her poor response to standard therapy; thus, it is not surprising that a further treatment choice of anti-IgE was considered for this patient.

Anti-IgE (omalizumab) is an approved treatment for patients with severe asthma that acts on decreasing serum IgE levels. Several published studies have documented the effectiveness of this molecule in effectively treating asthma. We have been prescribing anti-IgE therapy in our tertiary clinic since 2006. In light of our experience, we believe that several factors impact a good response to anti-IgE treatment. First, proper determination of the correct indications for medicine use is vital, closely followed by the proper selection of patients. The most important issue, in our opinion, in achieving this is confirming diagnosis and excluding comorbid diseases. Therefore, the patient described in this study was evaluated accordingly. Clinical symptoms and reversible airway obstruction in spirometry led us to believe her asthma diagnosis was valid initially even though another disease state did in fact exist. Also, because an asthma attack occurred 8 months after the surgery we were convinced that she did have real asthma, retrospectively. In the literature, the associated factors with worsening asthma control included poor adherence, rhinitis, gastroesophageal reflux disease, nasal polyps, vocal cord dysfunction, bronchiectasis, allergic bronchopulmonary aspergillosis, Churg-Strauss syndrome, drugs, airway malignancy, respiratory tract infections, and thyrotoxicosis. 14 – 16 Our patient had already been evaluated for upper airway disease and gastroesophageal reflux disease by an ear–nose–throat physician and a gastroenterologist, respectively, and no pathology was determined at the first hospital to which she was admitted. During the hospitalization period, she was adherent to her asthma therapy. There were no other diagnostic criteria supporting allergic bronchopulmonary aspergillosis and Churg-Strauss syndrome. She was not taking any kind of medication ( e.g. , β-blocker, angiotensin-converting enzyme inhibitor, or nonsteroidal anti-inflammatory drug) that could exacerbate asthma. No clinical or laboratory finding of thyrotoxicosis or infection was present. We decided to make the differential diagnosis of a possible chest mass based on the left hilar opacity observable from chest radiography. In the light of computerized tomography, we performed a fiberoptic bronchoscopy and made the diagnosis of carcinoid tumor by bronchoscopic biopsy specimen.

Pulmonary carcinoids are generally located centrally in the main or lobar bronchi. 17 , 18 Available specimens for pathological examination can generally be provided from fiberoptic bronchoscopy and histopathological diagnosis is easily achieved. In this case, the tumor was located in the left lower bronchus and could easily be seen during fiberoptic bronchoscopic examination. A biopsy specimen was not taken because carcinoid tumors are highly vascularized and there is a risk for hemorrhage in nearly one-fourth of cases. 4 , 19 Furthermore, some authors advise against performing biopsies with flexible bronchoscopes. 20

Because treatment options differ according to tumor type, determining a tumor's histological type is important. In this case, the microscopic, morphological, and immunohistochemical features were characteristic for pulmonary carcinoid tumor. Pulmonary carcinoid tumors are divided into low-grade TCs and intermediate-grade ACs based on histopathological criteria. A typical pulmonary carcinoid tumor shows no focal necrosis and rare mitosis whereas an atypical pulmonary carcinoid tumor shows either focal necrosis or mitosis numbering between 2 and 10/mm 2 . 21 , 22 In our case, the absence of mitosis and necrosis with the characteristic morphological and immunohistochemical features were compatible with a low-grade typical pulmonary carcinoid tumor.

Surgery is the main choice for treatment of carcinoid tumors. In general, radical excision with detailed lymph node sampling is recommended. 8 In patients with a centrally located typical pulmonary carcinoid, bronchial sleeve resection or sleeve lobectomy is preferred. Despite its having a low recurrence rate, peripherally located TCs should be thought of as low-malignant tumors and resected anatomically. A more extensive surgical approach is recommended in AC tumors. 18 Our patient was treated with left lower lobectomy and mediastinal lymph node dissection and had experienced no recurrence for 30 months.

This case is an example of the importance of making a good differential diagnosis and confirming a diagnosis of asthma. Asthma unresponsive to treatment should alert clinicians to the possibility of differential diagnoses of other reasons for airway obstruction. Consequently, we strongly support the view that diagnosis confirmation is essential in patients with uncontrolled asthma before trying more expensive treatments.

The authors have no conflicts of interest to declare pertaining to this article

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Determinants of Acute Asthma Attack among adult asthmatic patients visiting hospitals of Tigray, Ethiopia, 2019: case control study

• Melaku Negash 1 ,
• Hagos Tsegabrhan 2 ,
• Teklit Meles 3 ,
• Degena Bahrey Tadesse 1 ,
• Gebreamlak Gidey 4 ,
• Yemane Berhane 5 ,
• Kibrom Berhanu 6 &
• Tsgalem Haylemaryam 7  

Asthma Research and Practice volume  6 , Article number:  1 ( 2020 ) Cite this article

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Introduction

Acute asthma attack is one of the most common causes of visits to hospital emergency departments in all age groups of the population and accounts for the greater part of healthcare burden from the disease. Despite, Acute asthma attack is an important public health problem that affects not only the patients, but also to the family, health professionals, health care institutions and development of the nation, little is known about the risk factors of acute asthma attack.

Therefore, this study is aimed to investigate the determinants of acute asthma attack among.

The aim of this study was to assess the determinant factors of acute asthma attack among adult asthmatic patients visiting general hospitals of central zone, Tigray, Ethiopia, 2019.

Hospital based unmatched case control study design was conducted in general hospitals of central zone of Tigray, Ethiopia 2019. Data were collected using pretested interviewer administered questionnaire. A total of 289 study subjects (96 cases &193 controls) were selected by systematic random sampling. Data were entered to Epi data version 3.1 then exported to SPSS version 23 for analysis. Bivariate logistic regression was employed to examine the statistical association between dependent and independent variables. Variables with p value < 0.25 in binary logistic regression were entered to multivariable logistic regression model and variables with p value < 0.05 was taken as significant determinants of the outcome variable.

A total of 96 adult asthmatic patients who have acute asthma attack (cases) and 193 adult asthmatic patients without attack (controls)) with 100% response rate were participated in this study. Upper Respiratory tract Infection [AOR = 6.835,95% CI = 3.285,14.222], Season [AOR =2.204,95% CI = 1.011,4.805] kitchen smoke [AOR = 2.307,95%CI1.010,5.272]& sleep apnea [AOR = 9.254, 5%CI =3.563,25.460] were significantly associated with acute asthma exacerbation.

Asthma is a long-term inflammatory disease of the respiratory system which is characterized by wheezing, shortness of breath, chest tightness. Globally it affects approximately 300 million people and is estimated to rise to 400 million by 2025 globally [ 1 , 2 ]. And it is ranked 16th among the leading causes of disability and 28th among the leading causes of burden of disease, as measured by disability adjusted life years (DALYs) [ 3 ].

According to Croatian medical journal 2013, an estimate of asthma prevalence in Africa, was 49.7 million in the age of < 15 years (13.9%), < 45 years 102.9 million (13.8%), and in total population 119.3 million (12.8%) in 2010 [ 4 ].

Asthma exacerbation is defined as a worsening of shortness of breath, cough, wheezing, or chest tightness. If not treated immediately there will be increase in flow resistance causing increased work of breathing, gas exchange inefficiency, respiratory muscle tiredness and finally hypercapnic and hypoxemic respiratory failure [ 5 ]. This implies that acute asthma attack is a significant public health problem that affects patients with their parents or families and the community through labor and school loss, frequent emergency clinic visits, a poor quality of life hospitalizations and finally death [ 6 ]. According to Centers for Disease Control and prevention (CDC) report, More than 11 million people reported having an acute asthma attack [ 7 ].

Despite, in Ethiopia little is known about how risk factors are associated with exacerbation, according to asthma severity and the relative importance of the risk factors. This may be the reason for no policy and strategy to ascertain and acting out of effective intervention in order to reduce the burden of acute asthma attack [ 8 ]. Therefore, this study is aimed to full fill this gap.

Study setting and study design

Hospital based unmatched case control study was conducted in the selected general Hospitals of Central zone of Tigray from November 2018 to July 2019.

Study population and sample size determination

Source population.

All adult asthmatic patients visited to emergency unit who have acute asthma attack.

All adult patients diagnosed as asthma but without acute asthmatic attack who visited the OPD and the regular follow-up unit during the data collection period.

Study population

All selected adult asthmatic patients visited to emergency unit who have acute asthma attack during the data collection period.

All selected adult patients diagnosed as asthma but without acute asthmatic attack who visited the OPD and the regular follow-up unit during the data collection period.

Eligibility criteria

Inclusion criteria.

Adult asthmatic patients who have acute asthma attack during the data collection period.

Adult asthmatic patient without acute asthma attack during the data collection period.

Exclusion criteria

Patients with any history of pulmonary embolism, chronic obstructive pulmonary disease, active pulmonary TB, known congestive heart failure and known mechanical obstruction.

Sample size determination

Sample size was calculated from Previous study conducted in Uganda [ 9 ],using Epi info version 7. sample size was determined based on the assumption of confidence level = 95%; Power = 80%; Odds ratio = 2.132 with case to control ratio = 1:2, proportion of among controls 37.2%, proportion of among cases = 55.8%.

Therefore, the required sample size for cases was =92 where as for the controls =183 and the overall sample size was = 275 then after adding 5% non-response rate, the total sample size was 289. Finally, a sample size for cases was 96 and for controls 193.

Sampling technique and procedure

The total sample size was allocated to each hospital proportionally based on the number of patients who attend in the selected hospitals. A total number of 585(case 165, control.420) patients attended at the selected Hospitals with in 2 months of the previous year (April 1 to May 30–2018). Systematic random sampling method was applied in each hospital to select 289 participants.

Study Variables

Dependent variable.

Acute asthma attack.

Independent variables

Socio-demographic variables.

Age, Gender, Marital status, Residence, Educational level, Employment status and Occupational status.

Behavioral factors

Exercise, vigorous activity Smoking cigarette.

Environmental factors

Humidity, Kitchen smoke, dust, Season.

Medical and Clinical characteristics

URTI, Sleep apnea, Missing follow-up / appointments,

Operational definitions

Those who present with cough, wheezing and difficulty of breathing and diagnosed asthma by physician [ 10 ].

Acute Asthma Attack

Those who present with worsening of wheezing, shortness of breath, cough, chest tightness and diagnosed as acute asthma attack by physician [ 10 ].

Smoker:( daily smoker and non-daily smoker) those who currently smokes or those who quit smoking less than 1 year before the assessment [ 10 ].

Passive smoker: Smoke inhaled involuntarily by non-smokers [ 11 ].

Nonsmoker: Respondents who report never smoke those who quit smoking greater than 1 year before the assessment.

Vigorous activity: participants doing activity more than 10 min continuously, that increases breathing, like carrying or lifting heavy loads, digging or construction work, cutting fire wood [ 11 ].

Data collection tool

Structured questionnaire was used to collect the data which was adapted from different literatures [ 9 , 12 , 13 , 14 ]. The questionnaire contains four parts: socio-demographic, environmental factors, behavioral factors, and Medical &Clinical characteristics.

Data collection procedures

Data were collected from cases and controls using structured questionnaire and checklists through face-to-face interview and from patients chart review respectively.

Twelve BSc nurses as data collectors and three senior nurse supervisors were recruited for the data collection, Then data from cases were collected after they take all the necessary medical care and they recover from their attack whereas from the controls data were collected after they have completed their assessment by physician and at the last record reviews from their chart. Participants were identified as having upper respiratory tract infection and Obstructive sleep apnea from their medical charts which was diagnosed by senior physicians. This is to mean that, it was just suspected clinically by the time of the acute event. The reason we obeyed to use clinically diagnosis for obstructive sleep apnea is that, there is no accesses of modern diagnostic modality like polysomnography in the study area which was Tigray regional state not only in the study area but also in the country Ethiopia as a whole. The evaluation protocol that we use were a single evaluation visit for each case and even those who have follow-up and developed acute asthma attack were included .

Data quality control techniques

Data quality was ensured by training of data collectors and supervisors before data collection period. 5% of the questionnaire was pre-tested in Shire Hospital which was not included in the actual data collection. Based on the findings of the pre-test, questionnaire was modified. The filled questionnaire was checked for completeness and accuracy by data collectors, supervisors and principal investigator each day.. The questionnaire was translated into Tigrigna language for better understanding to both the data collectors and respondents and then back translated into English by another expert to ensure accuracy and consistency.

Data analysis procedures

Data were entered in to Epi data version 3.1 and analyzed using SPSS version 23.0. The degree of association between independent and dependent variables were assessed using adjusted odds ratio with 95% confidence interval. Variables < 0.25 p -value in binary logistic regression were entered to multivariable logistic regression model to control the potential confounding variables. Variables with p-value less than 0.05 in multivariable logistic regression model were taken as significantly associated factors. Variance inflation factor (VIF) was used to assess Multicollinearity between the independent variables. Hosmer and Lemeshow goodness fit model were used to check model fitness.

Ethical consideration

Ethical clearance was obtained from Mekelle University College of health sciences institutional review board (IRB). A subsequent permission was also obtained from Tigray teaching hospitals. Respondents were informed about the purpose of the study and the interview was conducted after receiving the written consent from participants. Confidentiality of the data/information was secured and was not used for other purposes.

Sociodemographic characteristic of study participants

Among the participants, 67.7% (65) of the cases and 60.6% (117) of the controls were females. The median ages of participants were 43 years with interquartile range (IQR) of 26.5 years among cases and 43 median ages with interquartile range (IQR) of 22 for control.

The educational status, one third 33.3% (32) of the cases and 24.9% (48) of the controls were collage and above, where as 14.6% (14) of the cases and 16.6% (32) of the controls were unable to read and write. The majority of the cases 63.5% (61) and 60.1% (116) of the controls were married (Table  1 ).

Behavioral characteristics of study participants

Among the participants, 2.1% (2) of the cases and 1.1% (6) of the controls were smokers.in parallel with this 3.1% of the cases and 4.7% of the control were passive smokers. Regarding vigorous activity 37.5% (36) of the cases and 23.8% (46) of the controls were do vigorous activity. Majority of the participants 72.9% (70) of the cases and 58% (112) of the controls were doing exercise.

Medical & clinical characteristics of study participants

Among the participants, 44.8% (43) of the cases and 13.5% (26) of the controls had Upper Respiratory Tract Infections (URTI) and 29.2% (28) of the cases and few of the controls 5.2% (10) had obstructive sleep apnea.

Among the participants, 31.3% (30) of the cases and 20.7% (40) of the controls had Missing follow up.

Environmental characteristics of study participants

Regarding the seasons of a year, spring season (April, May, June) were the season with high percentage 37.7% (109) of acute asthma attack than the autumn season. Majority of the participants 79.5% (230) were open their window/door while they were cooking. Concerning the kitchen of the participants 32.3% (31) of the cases and 20.2% (39) of the control’s kitchen have no kitchen smoke (chimney) (Table  2 ).

Unmatched case control study with 96 cases and 193 controls was conducted to show the determinants of acute asthma attack among adult asthmatic patients visiting general hospitals of central zone, Tigray, Ethiopia.

Having URTI increases the occurrence of acute asthma attack 6.8 times [AOR = 6.835,95% CI = 3.285,14.222] than those who have not upper respiratory tract infection (URTI) (Table 3 ).

This is consistent with the studies conducted in Gondar, Uganda and Ireland [ 9 , 12 , 15 ].

The association might be due to the mechanism of airway inflammation,mucus hyper secretion, and bronchial hyper responsiveness [ 16 ]. In contrast to this study upper respiratory tract infections was no risk factor for acute asthma exacerbation on the study conduct in Pretoria and New Zealand [ 14 , 17 ]. This difference might be due to difference in health care seeking behavior of the participants in this study.

This study revealed that, sleep apnea was strongly associated with the occurrence of acute asthma exacerbation. Those who have sleep apnea are 9.5 times more likely to run in to acute asthma exacerbation than those who have not sleep apnea [AOR = 9.524, 95% CI = 3.563, 25.460].

This findings is comparable with a study done in Gondar and USA [ 12 , 18 ].

The possible reason is the fact that sleep apnea lead to the worsening of asthma control in patients with concomitant sleep apnea secondary to bronchoconstriction as a result of increase vagal tone while sleeping [ 19 ].

The result of this study shows that the odds of having acute asthma in Spring season was 2.2 times higher than the odds of having acute asthma attack in the autumn season [AOR = 2.204,95% CI = 1.011,4.805]. This is consistent with a study conducted in Canada in which spring season was triggering factor for asthma exacerbation [ 20 ]. Seasonal variation is the risk factors for acute asthma attack especially pollens appearing seasons like spring season exacerbates acute asthma attack. This may be due to the reason that during the spring, tree pollen, mold spores and grass have the power to inflame and narrow the air passages of people who have asthma [ 21 ].

The result of this study was different from a study conducted in Spain which was resulting winter season as higher risk of developing acute asthma attack [ 22 ]. The difference could be arisen from seasonal variation between the study areas, due to the influence of temperature and humidity.

In this study, Kitchen smoke (chimney) is highly associated with risk of acute asthma exacerbation.

Those who have no kitchen smoke in their kitchen were 2.3 times at risk to develop acute asthma exacerbation [AOR = 2.307,95%CI = 1.010,5.2725] than those who have kitchen smoke. This finding is comparable with the study conducted in India [ 13 ]. This is due to the fact that kitchen smoke (chimney) is a way that helps in removing the smokes and fumes from the kitchen and making it clean and smoke free which result in reduction of indoor air pollution and prevents acute asthma exacerbation [ 23 ]. Inhaling harmful smoke can inflame lungs and airway, causing them to swell and block oxygen. This can lead to acute asthma exacerbation [ 24 ]

In this study the determinant factors of acute asthma attack were spring season, presence of upper respiratory tract infection (URTI), having no Kitchen smoke in their kitchen and having obstructive sleep apnea.

Limitations

The diagnosis of respiratory tract infections and sleep apnea was empirical (without laboratory) and all measures used were based on self-reporting, this might end up with social desirability bias. This study may have recall bias, since some of the information was based on the recall of the study participants. Unavailability of studies on acute asthma exacerbation.

Availability of data and materials

The datasets used and analyzed during the current study are presented within the manuscript and available from the corresponding author on reasonable request.

Abbreviations

Adjusted Odds Ratio

Confidence Interval

Crude Odds Ratio

Central Statistical Agency

Interquartile Range

National Health Interview Survey

Out Patient Department

Tigray Region Health Development Agency

Upper Respiratory Tract Infection

Variance Inflation Factor

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Acknowledgments

Authors thanks to public general hospitals of central zone Tigray, Ethiopia for their co-operation, to data collectors, supervisors, for the health staffs of the hospitals and to the study participants for their valuable information.

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Melaku Negash & Degena Bahrey Tadesse

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Adwa General Hospital, Adwa, Ethiopia

Teklit Meles

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college of medicine and health science, Adigrat university, Adigrat, Ethiopia

Yemane Berhane

Maternity and reproductive health nursing, Mekelle University, Mekelle, Ethiopia

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Contributions

MN: was made substantially contributions to conceived and designed the study, analysis the data, methodology, data interpretation and wrote the final manuscript.TM, DB, GG,YB, had equally contributed to analysis and interpretation of the data. Whereas HT, TH and KB substantial contribution in reviewing overall the study in analysis, interpretation of data, have drafted the manuscript and substantively revised the work. All authors read and approved the final manuscript.

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Ethics approval and consent to participate.

Ethical clearance was obtained from Mekelle University College of health sciences institutional review board (IRB). Official supportive letters were obtained from Regional Health Bureau (TRHB) and central zone health office. Respondents were informed about the purpose of the study and the interview was conducted after receiving the written consent from participants. The right of participants to withdraw from the study at any time, without any precondition were secured and participants were informed. Confidentiality of the data/information was secured and was not used for other purposes. No personal identifiers was used on the questionnaire. To maintain confidentiality, data collector was recruited from the study unit.

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Additional file 1..

Annex I: English version structured interview questionnaire.

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Negash, M., Tsegabrhan, H., Meles, T. et al. Determinants of Acute Asthma Attack among adult asthmatic patients visiting hospitals of Tigray, Ethiopia, 2019: case control study. asthma res and pract 6 , 1 (2020). https://doi.org/10.1186/s40733-020-00054-w

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Received : 07 December 2019

Accepted : 17 March 2020

Published : 03 April 2020

DOI : https://doi.org/10.1186/s40733-020-00054-w

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