Linked Life Data

1375688

Source:http://linkedlifedata.com/resource/pubmed/id/1375688

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-6-26
pubmed:abstractText
A canine model of myocardial infarction (MI) was used to study the type and frequency of ventricular antiarrhythmic and proarrhythmic effects due to procainamide and tocainide and the risk factors associated with development of proarrhythmia. An anterior MI was created by a 2-h occlusion of the left anterior descending artery (LAD) with complete reperfusion. Programmed ventricular stimulation was performed on two occasions after MI, on days 4-6 and on days 8-10, before drug and during antiarrhythmic drug infusion at three dose levels. The antiarrhythmic drugs were given in a randomized cross-over design. Only procainamide caused a dose-dependent increase in QRS, JTc, and right ventricular effective refractory period (ERP). Neither procainamide nor tocainide made sustained ventricular tachycardia (VT) noninducible, but procainamide slowed the tachycardia rate. Both drugs successfully made ventricular fibrillation (VF) noninducible: procainamide in 78% of trials and tocainide in 50% of trials. Proarrhythmia (development of inducible VT during drug when not present before drug or inability to terminate VT during drug administration) developed in 29% of dogs that received procainamide and 25% of dogs that received tocainide. There was no apparent correlation of QRS, JTc, and right ventricular ERP after drugs and proarrhythmia due to procainamide or tocainide. There was no significant difference in the size of MI between dogs with one or more proarrhythmic response to either drug and dogs that had no proarrhythmia. In this model, procainamide and tocainide had no antiarrhythmic efficacy for VT, but had moderate proarrhythmia potential that was unpredictable.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0160-2446
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
52-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Proarrhythmic effects of procainamide and tocainide in a canine infarction model.
pubmed:affiliation
Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't