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[Effects of beta blockaders on ventilatory function in chronic bronchitis]
Archives Des Maladies Du Coeur Et Des Vaisseaux
|January 1, 1979
Summary
Beta blockers like propranolol can reduce lung function in chronic bronchitis patients. Cardioselective beta blockers show better respiratory tolerance, but individual responses vary significantly.
Area of Science:
- Cardiology
- Pulmonology
- Pharmacology
Context:
- Beta blockers are commonly used for coronary insufficiency.
- Chronic bronchitis patients may also have coronary insufficiency, necessitating careful medication selection.
- The respiratory effects of beta blockers in chronic bronchitis are not fully understood.
Purpose:
- To investigate the effects of intravenous beta blockers on ventilatory function in patients with chronic bronchitis.
- To compare the respiratory safety of propranolol, practolol, atenolol, and acebutolol in this patient group.
Summary:
- Intravenous propranolol moderately reduced vital capacity and FEV1 in chronic bronchitis patients.
- Practolol, atenolol, and acebutolol did not significantly alter ventilatory function.
- Bronchoconstriction was observed with propranolol, less severe than in asthmatics, indicating potential differences in respiratory tolerance.
Impact:
- Cardioselective beta blockers appear to have better respiratory tolerance in chronic bronchitis patients.
- Significant individual variability in response necessitates cautious prescription and monitoring.
- Diagnostic challenges in differentiating asthma from chronic bronchitis can complicate beta blocker selection.