Copyright © 1985 by the European Society of Cardiology.
© 1985 The European Society of Cardiology
Timolol maleate and HDL cholesterol after myocardial infarction



*Department of Medicine, Division of Cardiology, Aust-Agder Central Hospital Arendal
Department of Medicine, Baerum Hospital Oslo, Norway
Institute of Clinical Biochemistry, Rikshospitalet, Oslo University Oslo, Norway
Department of Medicine, Division of Cardiology, Aker Hospital Oslo, Norway
Received 2 April 1985; revised 2 July 1985; .
Address for correspondenceTorstein Gundersen, M.D., Aust-Agder Central Hospital, 4800 Arendal, Norway.
Abstract
Myocardial infarction, serum lipids, HDL cholesterol, adrenergic betareceptor blockade. The influence of long-term timolol treatment on plasma lipids was analysed in cohorts of the Norwegian timolol multicentre study. The prognostic importance of high-density lipoprotein (HDL) cholesterol concentration after myocardial infarction was also examined. One year timolol treatment was related to a significant reduction in HDL cholesterol levels, from 1.32 mmol l-1 to L26mmoll-1 (P<0.05). After one year the HDL cholesterol levels were significantly lower in the timolol treated patients (1.26 mmol l-1) than in the placebo treated patients (1.32 mmol l-1, P<0.01). However, the HDL cholesterol values after myocardial infarction had no prognostic importance, and in the placebo group total mortality was the same in patients with low HDL cholesterol ( < 1.25mmol l-1) and high HDL cholesterol (> 1.25mmoll-1), respectively 15.0% and 14.8%. Timolol treatment was related to a reduction in mortality both in patients with low (24%, NS) and with high (43%, P < 0.05) HDL cholesterol levels. Thus, any deleterious effects of timolol on serum lipids did not attenuate its protective effect on the damaged myocardium.
Key Words: Myocardial infarction serum lipids HDL cholesterol adrenergic betareceptor blokade