Treatment of COPD Exacerbations
The treatment of COPD exacerbations should include short-acting inhaled beta2-agonists (SABAs) with or without short-acting anticholinergics, systemic corticosteroids for 5 days, and antibiotics when indicated by increased sputum purulence plus either increased dyspnea or increased sputum volume. 1, 2
Initial Management
- Short-acting inhaled beta2-agonists (SABAs), with or without short-acting anticholinergics, are the first-line bronchodilators for treating acute exacerbations 3, 1
- Either metered-dose inhalers (with spacers) or nebulizers can be used effectively, though nebulizers may be easier for sicker patients 1
- For moderate exacerbations, either a beta-agonist or an anticholinergic drug should be given via nebulizer 2
- For severe exacerbations, both SABA and short-acting anticholinergics should be administered together 2
Systemic Corticosteroids
- Systemic corticosteroids improve lung function, oxygenation, and shorten recovery time and hospitalization duration 3, 1
- A dose of 40 mg prednisone per day for 5 days is recommended 1, 4
- Short-duration therapy (5 days) is as effective as conventional longer-duration therapy (10-14 days) with significantly reduced glucocorticoid exposure 4, 5
- Oral prednisolone is equally effective to intravenous administration for most patients 1
- Corticosteroids may be less efficacious in patients with lower blood eosinophil levels 1
Antibiotic Therapy
- Antibiotics should be given when there is increased sputum purulence plus either increased dyspnea or increased sputum volume 1, 2
- Antibiotics reduce the risk of short-term mortality by 77%, treatment failure by 53%, and sputum purulence by 44% 1
- The recommended duration of antibiotic therapy is 5-7 days 1, 2
- First-line antibiotics include amoxicillin, tetracycline, or macrolides unless used with poor response prior to admission 2, 6
- For more severe exacerbations, consider augmented penicillins, fluoroquinolones, or third-generation cephalosporins 6
Oxygen Therapy
- The aim of oxygen therapy is to achieve a SpO2 ≥90% without causing respiratory acidosis 2
- In patients with known COPD aged 50 years or older, initial FiO2 should not exceed 28% via Venturi mask or 2 L/min via nasal cannulae until arterial blood gases are known 2
Treatment Setting and Classification
COPD exacerbations are classified as 3:
- Mild (treated with short-acting bronchodilators only)
- Moderate (treated with short-acting bronchodilators plus antibiotics and/or oral corticosteroids)
- Severe (requiring hospitalization or emergency room visit; may be associated with acute respiratory failure)
More than 80% of exacerbations can be managed on an outpatient basis 1
Hospitalization should be considered for severe exacerbations, particularly with acute respiratory failure 1
Respiratory Support for Severe Exacerbations
- Noninvasive ventilation (NIV) should be the first mode of ventilation for patients with acute respiratory failure who have no absolute contraindication 3, 1
- NIV improves gas exchange, reduces work of breathing, decreases need for intubation, shortens hospitalization duration, and improves survival 1
- Methylxanthines (theophylline) are not recommended due to increased side effect profiles 3, 1
Follow-up After Exacerbation
- Maintenance therapy with long-acting bronchodilators should be initiated as soon as possible before hospital discharge 3, 1
- At 8 weeks after an exacerbation, 20% of patients have not recovered to their pre-exacerbation state, highlighting the importance of follow-up care 3, 1
- Patients with frequent exacerbations (≥2 per year) have worse health status and morbidity, requiring more aggressive preventive strategies 3, 1
Prevention of Future Exacerbations
- For maintenance therapy in stable COPD, consider long-acting muscarinic antagonist (LAMA) monotherapy, combination inhaled corticosteroid/long-acting β2-agonist (ICS/LABA) therapy, or LAMA/LABA combination therapy 1
- Combination therapy has shown greater efficacy in preventing exacerbations than monotherapy in patients with moderate to severe COPD 1
- Wixela Inhub® 250/50 (fluticasone propionate/salmeterol) is indicated for the twice-daily maintenance treatment of airflow obstruction in COPD and to reduce exacerbations in patients with a history of exacerbations 7
Common Pitfalls and Caveats
- Do not exceed recommended corticosteroid duration (5-7 days) as longer courses increase adverse effects without providing additional benefits 5, 4
- Monitor for hyperglycemia when using systemic corticosteroids, especially with parenteral administration 8
- Do not use methylxanthines (theophylline) routinely due to their side effect profile 3
- Ensure proper inhaler technique when prescribing bronchodilators 3
- Consider comorbidities when diagnosing exacerbations, as symptoms may be due to acute coronary syndrome, heart failure, pulmonary embolism, or pneumonia 3