Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1998-1-20
pubmed:abstractText
Cardiopulmonary bypass (CPB) is known to induce an inflammatory response. Previous studies reported an impairment of the cellular immune response with activation of neutrophils and changes in lymphocyte subpopulations. The objective of the present study was to investigate the effect of CPB on leukocyte activation in vivo. In 27 patients undergoing coronary artery bypass grafting, the quantitative and the qualitative response of leukocyte populations to CPB was analysed pre-, intra-, and postoperatively using flow cytometry. A significant increase in leukocyte counts was detected during CPB, resulting in a marked leukocytosis postoperatively. The total number of lymphocytes peaked in the early phase of CPB, followed by a significant decrease, mainly due to a loss in B and cytotoxic T lymphocytes. In contrast, the lymphocytopenia observed 8 h after protamin administration was mainly caused by a drop in the population of helper T lymphocytes. Activation of distinct cell populations could be detected during and following CPB. The results indicate an influence of CPB on the cellular immune system, however an immuno-suppression was detectable only transiently.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0171-6425
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
217-23
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Response of the cellular immune system to cardiopulmonary bypass in vivo.
pubmed:affiliation
Department of Cardiothoracic Surgery, University Hospital, Würzburg, Germany.
pubmed:publicationType
Journal Article