Linked Life Data

3941203

Source:http://linkedlifedata.com/resource/pubmed/id/3941203

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1986-1-31
pubmed:abstractText
In eight patients, the right ventricular effective refractory period, rate-dependent changes in intraventricular conduction (as reflected by QRS duration during ventricular paced cycle lengths of 600 to 250 ms) and results of programmed ventricular stimulation were determined in the control state, 5 minutes after the intravenous infusion of 10 mg/kg body weight of amiodarone and after 2 months of treatment with oral amiodarone. The right ventricular effective refractory period was 230 +/- 30 ms (mean +/- SD) in the control study, 248 +/- 27 ms after intravenous amiodarone (p less than 0.001) and 296 +/- 26 ms after oral amiodarone (p less than 0.001). In the control state, QRS duration was constant at all paced cycle lengths. Intravenous amiodarone resulted in a rate-dependent prolongation of QRS duration. This rate-dependent prolongation was markedly accentuated by oral amiodarone in six patients who had an elevated serum level of reverse triiodothyronine (T3) after 2 months of oral treatment, but it was not more pronounced than the effects of intravenous amiodarone in two patients with a normal reverse T3 serum level after oral therapy. Both intravenous and oral amiodarone either suppressed or modified the induction of ventricular tachycardia by programmed stimulation in some patients, but in a discordant fashion. The relative effects of intravenous and oral amiodarone on ventricular refractoriness and conduction and on ventricular tachycardia induction did not correlate with serum amiodarone levels. Chronic amiodarone therapy results in a marked prolongation in ventricular refractoriness compared with the relatively small but significant increase that occurs after intravenous amiodarone.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0735-1097
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
148-57
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Acute and chronic effects of amiodarone on ventricular refractoriness, intraventricular conduction and ventricular tachycardia induction.
pubmed:publicationType
Journal Article, Comparative Study