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[Effects of beta blockaders on ventilatory function in chronic bronchitis].

F C Hugues, D Julien, J Marche

    Archives Des Maladies Du Coeur Et Des Vaisseaux
    |January 1, 1979
    PubMed
    Summary
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    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.

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  • 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.