Asthma Management Guidelines
Introduction to Asthma Management
- The British Thoracic Society recommends a stepwise approach to asthma management with the goal of achieving symptom control using the lowest effective medication doses while preventing exacerbations and minimizing side effects 1
Assessment and Diagnosis
- Accurate early diagnosis is essential for effective management of asthma 1
- Assessment should include objective measurements such as peak expiratory flow (PEF) to avoid underestimating severity 2
- Failure to objectively assess severity is a common factor in preventable asthma deaths 2
Stepwise Management Approach
- For mild intermittent asthma, use as-needed short-acting β2-agonists (SABA) for symptom relief 1
- For mild intermittent asthma, no regular controller medication is required 1
Acute Exacerbation Management
- Life-threatening features of acute asthma exacerbation include PEF <33% of predicted/best, silent chest, cyanosis, poor respiratory effort, bradycardia, hypotension, confusion, exhaustion, or coma 3, 4
- Severe features of acute asthma exacerbation include inability to complete sentences in one breath, respiratory rate >25/min, pulse >110/min, PEF <50% of predicted/best 3, 4
- High-flow oxygen (40-60%) should be administered in all cases of acute severe asthma 5, 2
- Nebulized salbutamol 5 mg or terbutaline 10 mg via oxygen-driven nebulizer should be administered in acute severe asthma 3, 6
- Systemic corticosteroids, such as prednisolone 30-60 mg orally or hydrocortisone 200 mg IV, should be administered in acute severe asthma 3, 6
Hospital Admission Criteria
- Patients with life-threatening features of acute asthma exacerbation should be admitted to the hospital 6, 5
- Patients with features of acute severe asthma persisting after initial treatment should be admitted to the hospital 6, 5
- Patients with PEF <33% of predicted/best after treatment should be admitted to the hospital 6, 5
Self-Management Education
- Patients should understand the difference between "relievers" (bronchodilators) and "preventers" (anti-inflammatory medications) 1
- A written action plan with clear instructions for medication adjustment should be provided to patients 1
- Regular monitoring of symptoms and peak flow is recommended for patients with asthma 6, 1
Special Considerations
- Children over 5 years can typically use a peak flow meter for monitoring 7
- Age-appropriate dosing of salbutamol is 2.5 mg up to age 2 and 5 mg over age 2 7
- Patients with catastrophic sudden severe asthma should have a management plan mutually agreed upon by the patient, GP, and consultant 7
Common Pitfalls to Avoid
- Underestimating severity by failing to use objective measurements is a common pitfall in asthma management 2, 1
- Overreliance on bronchodilators without adequate anti-inflammatory treatment is a common pitfall in asthma management 1
- Delayed administration of systemic corticosteroids during severe exacerbations is a common pitfall in asthma management 1
Monitoring and Follow-Up
- Regular review of inhaler technique, adherence, and symptom control is recommended 1
- Follow-up within 24-48 hours after acute exacerbations is recommended 6, 1
- Consider stepping down treatment when stable for 3 months 1
- Monitor for potential side effects of medications, particularly with higher doses of inhaled corticosteroids 1