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Q J Med 1980; 49: 9-20
© 1980 Association of Physicians

research-article

Diazepam in the Treatment of Dyspnoea in the ‘Pink Puffer’ Syndrome

PETER MITCHELL-HEGGS*, KEVIN MURPHY*, KEITH MINTY*, ABRAHAM GUZ*, SUSAN C. PATTERSON{dagger}, PETER S. B. MINTY{dagger} and RACHEL M. ROSSER{ddagger}

*Department of Medicine, Charing Cross Hospital Medical School Fulham Palace Road, London, W.6 {dagger}Department of Forensic Medicine, Charing Cross Hospital Medical School Fulham Palace Road, London, W.6 {ddagger}Department of Psychiatry, Charing Cross Hospital Medical School Fulham Palace Road, London, W.6

Accepted for publication 18 August 1979.

Diazepam, in moderate doses, has been used in a placebo controlled, single blind study to treat dyspnoea in four patients severely disabled from chronic airflow obstruction. The subjects had the ‘pink puffer syndrome’, usually associated with emphysema and were not hypercapnoeic nor severely hypoxic at rest. With diazepam, they experienced a striking reduction in dyspnoea, and an improvement in effort tolerance; in addition the slope of the ventilation/CO2, response curve was rduced. There were no changes in resting blood gases. Psychiatric examination at the end of the study did not reveal prominent anxiety, although three patients were depressed. The use of diazepam to treat dyspnoea in this syndrome is safe in the absence of any acute infection.


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