Treatment of Reactive Airway Disease
Begin treatment with a short-acting beta agonist (SABA) as needed for all patients with reactive airway disease, and immediately initiate daily low-dose inhaled corticosteroid therapy if the patient requires SABA more than twice weekly. 1
Initial Treatment Strategy
- Start all patients on an inhaled short-acting beta agonist (such as albuterol or salbutamol) for quick symptom relief, using 200-400 µg four times daily for mild episodes or up to 5 mg via nebulizer for more severe presentations 2, 1
- Address patient education, environmental control measures, and management of comorbidities at every step of treatment 1
- Assess symptom frequency and severity to determine the appropriate step of therapy 1
When to Escalate to Controller Therapy
The critical threshold for initiating daily controller medication is SABA use more than twice weekly, which indicates inadequate control and progression to mild persistent disease requiring anti-inflammatory treatment 1, 3
Preferred Controller Medication
- Low-dose inhaled corticosteroid (ICS) is the preferred first-line controller therapy for mild persistent reactive airway disease in both adults and children 1, 3
- The standard effective daily dose is 200-250 µg of fluticasone propionate or equivalent, which achieves 80-90% of maximum therapeutic benefit 4
- This "standard dose" should be the starting point for ICS therapy rather than escalating to higher doses initially 4
Alternative Controller Options
If ICS cannot be used, consider these alternatives (though less effective than ICS):
- Leukotriene receptor antagonists (montelukast) - particularly useful for ease of use and high compliance rates 1, 3
- Cromolyn or nedocromil 1, 3
- Theophylline 1, 3
Acute Exacerbation Management
Severity-Based Treatment
Moderate episodes (respiratory rate >25/min, difficulty speaking in full sentences):
- Nebulized salbutamol 5 mg or terbutaline 10 mg, repeated 1-4 hourly if improving 2
- Add ipratropium bromide 500 µg if not improving after initial beta-agonist treatment 2
- Consider hospital admission if inadequate response 2
Severe episodes (cyanosis, cannot complete sentences, reduced activity):
- Immediate consideration for hospital admission 2
- Nebulized beta-agonist combined with ipratropium bromide 500 µg every 4-6 hours 2
- Avoid nebulizing with high-flow oxygen in COPD patients; use 24% Venturi mask between treatments 2
Pediatric Dosing Adjustments
For children with severe symptoms (cannot talk or feed, respiratory rate >50/min, heart rate >140/min):
- Nebulized salbutamol 5 mg (or 0.15 mg/kg) or terbutaline 10 mg (or 0.3 mg/kg) 2
- Add ipratropium bromide 250 µg (not 500 µg as in adults) if not improving after 30 minutes 2
- Consider oral steroids and hospital transfer 2
Treatment Adjustment Algorithm
Before Stepping Up Therapy
Always verify these factors first:
- Medication adherence (directly question about medication use over past several days) 3
- Proper inhaler technique 3
- Environmental control measures 1, 3
- Management of comorbid conditions 1
When to Step Up
- SABA use more than two days per week for symptom relief indicates inadequate control 1, 3
- Persistent symptoms despite appropriate controller therapy 1
When to Step Down
- Asthma well-controlled for at least three months 1, 3
- Reassess control every 2-6 weeks after treatment changes 3
Critical Pitfalls to Avoid
- Never rely solely on SABA without addressing underlying inflammation when symptoms are persistent 1
- Do not use long-acting beta-agonists (LABA) as monotherapy - this increases risk of asthma-related deaths and must always be combined with ICS 3
- Failing to recognize that twice-weekly SABA use requires controller medication is a common error leading to inadequate disease control 1, 3
- Inadequate patient education on proper inhaler technique significantly reduces medication effectiveness 3
- Do not prescribe "high-dose" ICS initially - start with standard doses (200-250 µg fluticasone equivalent) which provide near-maximal benefit with lower risk of systemic adverse effects 4
Special Populations
Elderly patients:
- Beta-agonists may rarely precipitate angina; supervise first treatment 2
- Use mouthpiece with ipratropium to prevent glaucoma worsening 2
Children: