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Effect of verapamil on arrhythmias and heart rate during 16 months following an acute myocardial infarction. The Danish Study Group on Verapamil in Myocardial Infarction.

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  • M Vaage-Nilsen
  • Verner Rasmussen
  • J F Hansen
  • L Hagerup
  • M B Sørensen
  • O Pedersen-Bjergaard
  • K Mellemgaard
  • N H Holländer
  • I Nielsen
  • B M Sigurd
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The present study was a prospectively planned subset of the postinfarction, double blind, randomized, multicenter, placebo controlled trial of verapamil, DAVIT II. Patients had 24 hours of Holter monitoring before randomization, i.e., second week after infarction (placebo, n = 122; verapamil, n = 128), after 1 month (placebo, n = 108; verapamil, n = 94) and after 16 months (placebo, n = 75; verapamil, n = 63) of treatment. The purpose was to evaluate the effect of verapamil on the prevalence and changes over time of arrhythmias and heart rate. In patients monitored twice, a significant increase of average ventricular premature complexes (VPC) per hour from before to 1 month (p = 0.0007) and 16 months (p = 0.02) after was demonstrated in the placebo group, and from before to 1 months (p = 0.01) after in the verapamil group. Average VPC/hr did not change from 1 to 16 months of treatment. A significant increment of > 10 VPC/hr was found after 1 (p = 0.03) and 16 months (p = 0.05) compared to prerandomization in the placebo, but not in the verapamil group. A significant increase of supraventricular arrhythmias after 1 month compared with prerandomization was found in the placebo group (p = 0.003) but not in the verapamil group. The prevalence of VPC and supraventricular tachycardia was significantly lower in the verapamil compared with the placebo group after 1 month of treatment. At 16 months no significant difference was found between the two groups. The 24 hour mean heart rate was significantly lower, 3 beats/min, in the verapamil compared with placebo after 1 and 16 months of treatment.(ABSTRACT TRUNCATED AT 250 WORDS)
Bidragets oversatte titelEffect of verapamil on arrhythmias and heart rate during 16 months following an acute myocardial infarction. The Danish Study Group on Verapamil in Myocardial Infarction.
OriginalsprogEngelsk
TidsskriftCardiovascular Drugs and Therapy
Vol/bind8
Udgave nummer1
Sider (fra-til)147-151
Antal sider5
ISSN0920-3206
StatusUdgivet - 1994

ID: 32556553