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exercise induced arrhytmias

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https://www.readbyqxmd.com/read/6414413/-coronary-artery-spasm-apropos-of-165-cases
#1
M E Bertrand, J M Lablanche, P Y Tilmant, F A Thieuleux
This study comprised 165 cases of coronary artery spasm (147 men and 18 women) with an average age of 49,2 years (range 27 to 73 years). Smoking was a particularly significant risk factor. Symptoms were usually of recent onset (80%) and dominated by attacks of angina pectoris either at rest alone or associated with angina of effort. 14% of cases of spasm were observed during acute myocardial infarction. Some cases presented with syncope due to cardiac arrhytmias. The basal electrocardiogramme was normal in 53% of cases...
June 1983: Archives des Maladies du Coeur et des Vaisseaux
https://www.readbyqxmd.com/read/6164908/-effect-of-beta-receptor-blockaders-on-exercise-induced-extrasystoles
#2
R Rost
The effect of a beta-receptor-blocking drug (200 mg Acebutolol pr os) on exercise-stimulated extrabeats (ES) by an ergometrical test was studied in 56 subjects. A reduction of the frequency of premature beats to minimally 50% was considered to be a positive result, which was found in 32 subjects. The best result could be observed in old people, in supraventricular and in the case of a fairly low number of ES. On the other hand the effect was smaller in young people, in ventricular and in frequent extra beats...
May 8, 1981: Medizinische Klinik
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