Document Detail


Metoprolol treatment for two years after coronary bypass grafting: effects on exercise capacity and signs of myocardial ischaemia.
MedLine Citation:
PMID:  7547016     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate whether prophylactic treatment with metoprolol for two years after coronary artery bypass grafting improves working capacity and reduces the occurrence of myocardial ischaemia in patients with coronary artery disease. METHODS: After coronary artery bypass grafting, patients were randomised to treatment with metoprolol or placebo for two years. Two years after randomisation, a computerised 12-lead electrocardiogram was obtained during a standardised bicycle exercise test in 618 patients (64% of all those randomised). RESULTS: The median exercise capacity was 140 W in the metoprolol group (n = 307) and 130 W in the placebo group (n = 311) (P > 0.20). An ST depression of > or = 1 mm at maximum exercise was present in 34% of the patients in the metoprolol group and 38% in the placebo group (P > 0.20) and an ST depression of > or = 2 mm at maximum exercise was present in 11% in the metoprolol group and 16% in the placebo group (P = 0.09). The median values for maximum systolic blood pressure were 200 mm Hg in the metoprolol group and 210 mm Hg in the placebo group (P < 0.0001), while the median values for maximum heart rate were 126 beats/min in the metoprolol group and 143 beats/min in the placebo group (P < 0.0001). The occurrence of cardiac and neurological clinical events two years postoperatively among exercised patients was comparable in the treatment groups. CONCLUSIONS: Treatment with metoprolol for two years after coronary artery bypass grafting did not significantly change exercise capacity or electrocardiographic signs of myocardial ischaemia.
Authors:
H Sj?land; K Caidahl; L Lurje; A Hjalmarson; J Herlitz
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  British heart journal     Volume:  74     ISSN:  0007-0769     ISO Abbreviation:  Br Heart J     Publication Date:  1995 Sep 
Date Detail:
Created Date:  1995-11-21     Completed Date:  1995-11-21     Revised Date:  2010-03-24    
Medline Journal Info:
Nlm Unique ID:  0370634     Medline TA:  Br Heart J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  235-41     Citation Subset:  AIM; IM    
Affiliation:
Division of Cardiology, Sahlgrenska University Hospital, G?teborg, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Adrenergic beta-Antagonists / therapeutic use*
Aged
Coronary Artery Bypass*
Double-Blind Method
Electrocardiography
Exercise Test
Exercise Tolerance / drug effects
Female
Heart Rate / drug effects
Humans
Male
Metoprolol / therapeutic use*
Middle Aged
Myocardial Infarction / physiopathology,  prevention & control*
Myocardial Ischemia / physiopathology,  prevention & control
Postoperative Period
Chemical
Reg. No./Substance:
0/Adrenergic beta-Antagonists; 37350-58-6/Metoprolol
Comments/Corrections

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