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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1992-10-29
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pubmed:abstractText |
Fifty-one patients admitted for routine coronary bypass operations were randomized to cardiopulmonary bypass with a membrane oxygenator (Capiox) or a bubbler (Polystan or William Harvey). Complement activation was measured using enzyme immunoassays for concentrations of C3 activation products and the terminal complement complex. From 5.8 to 8.1 arbitrary units (AU)/mL (medians), the plasma concentrations of C3 activation products increased by 119.9 AU/mL (Capiox), 124.6 AU/mL (Polystan), and 79.5 AU/mL (William Harvey) to a peak at closure of the sternum (not significant when related to baseline concentrations). The increase in C3 activation products and baseline C3 activation were linearly correlated (R2 = 0.30; p less than 0.0001). From 5.5 to 6.1 AU/mL, the plasma terminal complement complex concentrations increased by 45.2 AU/mL (Capiox), 15.4 AU/mL (Polystan), and 17.4 AU/mL (William Harvey) to a peak before termination of cardiopulmonary bypass. Maximal terminal (C5-C9) activation was significantly higher in the membrane oxygenator group (p less than 0.0001) and showed no relationship to C3 activation. Measurement of C3 activation only gives no information about C5-C9 activation. At present, terminal complement complex quantitation is probably the best index of C5-C9 activation during cardiopulmonary bypass.
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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 |
Oct
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pubmed:issn |
0003-4975
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
54
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
725-31
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1417231-Cardiopulmonary Bypass,
pubmed-meshheading:1417231-Complement Activation,
pubmed-meshheading:1417231-Complement C3,
pubmed-meshheading:1417231-Complement System Proteins,
pubmed-meshheading:1417231-Coronary Artery Bypass,
pubmed-meshheading:1417231-Female,
pubmed-meshheading:1417231-Follow-Up Studies,
pubmed-meshheading:1417231-Humans,
pubmed-meshheading:1417231-Male,
pubmed-meshheading:1417231-Middle Aged,
pubmed-meshheading:1417231-Oxygenators,
pubmed-meshheading:1417231-Oxygenators, Membrane
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pubmed:year |
1992
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pubmed:articleTitle |
Time for new concepts about measurement of complement activation by cardiopulmonary bypass?
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pubmed:affiliation |
Institute for Experimental Medical Research, Ullevaal Hospital, Oslo, Norway.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Comparative Study,
Randomized Controlled Trial,
Research Support, Non-U.S. Gov't
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