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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1984-1-27
pubmed:abstractText
We examined the actions of amrinone in five models using dogs to determine under what circumstances intravenous amrinone might exert arrhythmogenic or antiarrhythmic properties. In dogs with 24-h post-coronary artery ligation arrhythmias, amrinone, given at incrementally increasing doses of 1.5, 3.0, and 6.0 mg/kg at 30-min intervals, produced significant increases of cardiac contractility without altering the severity of the arrhythmia. In dogs with 2- to 6-day-old ischemic lesions and 90-100% sinus beats, a bolus dose of 3.0 mg/kg amrinone was followed by an increased incidence of abnormal beats (p = 0.013); neither 1.5 nor 6.0 mg/kg caused a significant incidence of arrhythmias. Acute occlusion of the left anterior descending coronary artery followed by reperfusion caused fibrillation in nine of 15 control dogs and two of 14 dogs treated with 2.3 mg/kg amrinone. This difference was significant at the level p less than 0.05. In ouabain-intoxicated dogs, amrinone at 1.0 and 3.0 mg/kg neither worsened nor improved the arrhythmias. In the atrial circus flutter arrhythmia, amrinone increased ventricular heart rate by a significantly greater amount than it increased atrial rate, suggesting that amrinone facilitates atrioventricular conduction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0160-2446
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1052-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
Electrophysiological actions of amrinone in dogs with cardiac lesions.
pubmed:publicationType
Journal Article