Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1981-5-21
pubmed:abstractText
We evaluated efficacy and mechanisms of the antiarrhythmic action of verapamil in 20 patients with sustained supraventricular tachycardia. Two patients had sinus nodal re-entrant tachycardia, nine atrioventricular (AV) nodal re-entrant tachycardia, and nine AV reciprocating tachycardia associated with the Wolff-Parkinson-White syndrome. The study design comprised a double-blind, randomized, cross-over phase using a 0.075 mg/kg dose of verapamil versus placebo and an open-label phase using a 0.15 mg/kg dose of verapamil. The overall results of both phases showed that 15 of 19 patients converted to sinus rhythm with verapamil while only one of 16 converted to sinus rhythm with placebo. The effective plasma verapamil concentration measured 123 +/- 40 ng/mL (mean +/- SD). Verapamil suppressed sinus nodal and AV nodal re-entry but exerted no selective depression between fast and slow AV nodal pathways. It had no significant effect on accessory AV bypass tract but was effective in terminating AV reciprocating tachycardia by its depressive action on the AV node.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0003-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
682-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Intravenous verapamil for termination of re-entrant supraventricular tachycardias: intracardiac studies correlated with plasma verapamil concentrations.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial, Research Support, Non-U.S. Gov't