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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1992-9-3
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pubmed:abstractText |
Bucindolol is a new beta blocker with marked vasodilatory properties and intrinsic sympathomimetic activity. We tested its potential effect against ventricular fibrillation (VF), in a pig model of acute myocardial ischemia. Bucindolol 6 mg/kg IV was administered in two equally divided doses, the first 30 minutes prior to, and the second 10 minutes after, ligation of the anterior descending coronary artery (CAL) in anesthetized open-chest pigs. Bucindolol decreased the incidence of VF to 1/11 versus 14/16 in the control group (p less than 0.005). Bucindolol also decreased the duration of ventricular tachycardia, 15 +/- 8 seconds versus 104 +/- 32 seconds in the control group (p less than 0.01). Bucindolol maintained LVmaxdP/dt at predrug and pre-CAL values, whereas LVmaxdP/dt was decreased by CAL in the control group. Bucindolol decreased arterial pressure and heart rate. Bucindolol increased blood flow in the peripheral ischemic zone (24.6 +/- 1.8% versus 16.2 +/- 1.7% (percent of pre-CAL value) in controls, p less than 0.002), as well as in the nonischemic zones (periischemic zone: 126.4 +/- 6.1% versus 96.7 +/- 4.8% in the control group, p less than 0.0005; remote nonischemic zone: 126.6 +/- 7.1% versus 87.1 +/- 4.3% of pre-CAL value in the control group, p less than 0.0001). Bucindolol had marked antiarrhythmic effects that were associated with beneficial effects on the mechanical function of the left ventricle and on blood flow to the ischemic myocardium.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0920-3206
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
6
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
233-7
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:1353366-Adrenergic beta-Antagonists,
pubmed-meshheading:1353366-Animals,
pubmed-meshheading:1353366-Blood Pressure,
pubmed-meshheading:1353366-Coronary Circulation,
pubmed-meshheading:1353366-Coronary Disease,
pubmed-meshheading:1353366-Disease Models, Animal,
pubmed-meshheading:1353366-Female,
pubmed-meshheading:1353366-Heart Rate,
pubmed-meshheading:1353366-Hemodynamics,
pubmed-meshheading:1353366-Male,
pubmed-meshheading:1353366-Propanolamines,
pubmed-meshheading:1353366-Swine,
pubmed-meshheading:1353366-Ventricular Fibrillation,
pubmed-meshheading:1353366-Ventricular Function, Left
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pubmed:year |
1992
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pubmed:articleTitle |
Bucindolol, a beta blocker, decreased ventricular fibrillation and maintained mechanical function in a pig model of acute myocardial ischemia.
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pubmed:affiliation |
Department of Medicine, Groote Schuur Hospital, South Africa.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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