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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1978-12-20
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pubmed:abstractText |
Seventeen of 34 consecutive patients undergoing coronary artery bypass grafting were randomly assigned to one of two methods of myocardial preservation. With the cold cardioplegic method (Group A), a 4 degrees C. asanguineous solution with 30 mEq. of potassium per liter was infused into the aortic root for about 2 minutes immediately after aortic cross-clamping and again after about 45 minutes or when myocardial temperature rose above 19 degrees C. External cardiac cooling was provided by constant infusion of 4 degrees C. Ringer's solution into the pericardium. Seventeen patients were assigned to simple cardiac cooling by hypothermic systemic perfusion before aortic cross-clamping plus external cardiac cooling (Group B). Electromechanical activity ceased within 1 to 2 minutes in Group A but continued throughout the ischemic period in 14 patients in Group B. Myocardial temperature (mean for all observations) during aortic cross-clamping was 17.2 +/- 0.44 degrees C. In Group A and 24.0 +/- 0.70 degrees C. in Group B. Operating conditions were better in Group A. Card-ac function early postoperatively was good in both groups clinically and according to measurements, but only in the cold cardioplegic group (A) was cardiac index not adversely affected by longer cross-clamp time. Myocardial necrosis occurred in both groups but was probably less in the cold cardioplegic group. Thirteen patients (76 percent) in Group A had no electrocardiographic evidence of myocardial injury, compared with eight (47 percent) in Group B (p = 0.08). Eleven (65 percent of Group A had no or short-lived appearance of ceatine phosphokinase isoenzyme (CK-MB), compared with six (35 percent) of Group B (p = 0.08). Time-related CK-MB and SGOT mean levels were consistently lower in Group A.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0022-5223
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
76
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
577-89
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:309031-Cold Temperature,
pubmed-meshheading:309031-Coronary Artery Bypass,
pubmed-meshheading:309031-Coronary Disease,
pubmed-meshheading:309031-Creatine Kinase,
pubmed-meshheading:309031-Evaluation Studies as Topic,
pubmed-meshheading:309031-Heart Arrest, Induced,
pubmed-meshheading:309031-Humans,
pubmed-meshheading:309031-Hypothermia, Induced,
pubmed-meshheading:309031-Isoenzymes,
pubmed-meshheading:309031-Postoperative Complications,
pubmed-meshheading:309031-Solutions,
pubmed-meshheading:309031-Time Factors
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pubmed:year |
1978
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pubmed:articleTitle |
Cold cardioplegia versus hypothermia for myocardial protection. Randomized clinical study.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Randomized Controlled Trial
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