Asthma Management Approach
Initial Assessment and Classification
- The American Academy of Family Physicians and the Mayo Clinic recommend classifying asthma severity before initiating therapy to determine the appropriate starting step, using frequency of symptoms, nighttime awakenings, SABA use, interference with normal activity, and lung function (spirometry for patients ≥5 years) 1, 2, 3
- The Mayo Clinic suggests distinguishing between current impairment (symptom frequency, functional limitations) and future risk (likelihood of exacerbations, progressive lung function decline) as separate domains that guide treatment decisions 3
Stepwise Pharmacological Management
- The American Academy of Family Physicians recommends prescribing SABA as needed only (no daily controller medication required) for intermittent asthma 1
- The American Academy of Family Physicians and the Mayo Clinic suggest low-dose ICS daily (fluticasone propionate 100-250 μg/day or equivalent) as the preferred treatment for mild persistent asthma 1, 2
- The American Academy of Family Physicians and the Mayo Clinic recommend considering subcutaneous allergen immunotherapy for patients with documented allergic asthma 1, 2
Acute Exacerbation Management
- The British Thoracic Society recommends assessing severity of exacerbation using indicators such as inability to complete sentences in one breath, respiratory rate >25/min, heart rate >110/min, PEF <50% predicted 5, 6, 7
- The British Thoracic Society suggests immediate hospital referral for patients with life-threatening features, severe attack features persisting after initial treatment, PEF <33% predicted 15-30 minutes post-nebulization, or oxygen saturation <92% on room air 5, 6, 7, 8, 9
Universal Management Principles
- The American Academy of Family Physicians and the Mayo Clinic recommend providing education on proper inhaler technique, difference between "reliever" (bronchodilator) and "preventer" (anti-inflammatory) medications, recognition of worsening symptoms, and peak flow monitoring 1, 2, 12
- The British Thoracic Society suggests developing a written asthma action plan with three elements: symptom/peak flow monitoring, prearranged patient-initiated actions, and written guidance for medication adjustments 12
Critical Pitfalls to Avoid
- The Mayo Clinic warns against using LABAs as monotherapy due to increased mortality risk, and recommends combining them with ICS 2, 4
- The British Thoracic Society advises against prescribing antibiotics unless clear bacterial infection is documented, and against using sedatives in asthma exacerbations due to worsening respiratory depression 5, 6, 11, 7, 8, 9