Document Detail


Influence of normothermic cardiopulmonary bypass on body oxygen metabolism during lung transplantation.
MedLine Citation:
PMID:  18204319     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Studies have demonstrated that cardiopulmonary bypass (CPB) adversely affects pulmonary circulation, which is involved in metabolism in the lung, and that pulmonary circulation after CPB can restore the prostaglandin E2 (PGE2) level mainly standing for levels of key vasostimulators augmented during CPB, which may influence systemic tissue perfusion and body oxygen metabolism. However, in lung transplantation (Lx), pulmonary circulation is restored to the graft, which might induce another CPB reaction. We prospectively examined the influence of CPB on body oxygen metabolism in Lx. Left Lx was successfully performed on 10 dogs (group-on: with normothermic CPB without cardiac arrest, group-off: without CPB; n = 5 vs. 5). At 30 minutes after graft perfusion, the right pulmonary artery and bronchus were clamped. Body weight, donor-to-recipient body weight ratio, and clinical parameters were comparable between the two groups, except for the hematocrit level during CPB. At 90 minutes after graft perfusion, mixed venous oxygen saturation (SvO2) was lower (p < 0.01) and O2 extraction rate (p < 0.01), PGE2 (p = 0.025), and arterial blood ketone body ratio (KBR) (p < 0.01) were higher in group-on than in group-off, whereas these parameters were comparable before graft perfusion between the two groups. O2 consumption and acetic acid were higher in group-on than in group-off, whereas O2 delivery and 3-hydroxy propioic acid were comparable between the groups. In conclusion, Lx during CPB may induce a new inflammatory reaction and influence body oxygen metabolism, contrary to the restoration of pulmonary circulation after CPB.
Authors:
Koichi Sato; Masanori Tsuchida; Masayuki Saito; Terumoto Koike; Jun-Ichi Hayashi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  ASAIO journal (American Society for Artificial Internal Organs : 1992)     Volume:  54     ISSN:  1538-943X     ISO Abbreviation:  ASAIO J.     Publication Date:    2008 Jan-Feb
Date Detail:
Created Date:  2008-01-21     Completed Date:  2008-06-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9204109     Medline TA:  ASAIO J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  73-7     Citation Subset:  IM    
Affiliation:
Division of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Weight
Bronchi
Cardiopulmonary Bypass / adverse effects*
Dinoprostone / biosynthesis
Hypothermia, Induced
Inflammation
Ketones / metabolism
Lung Transplantation / methods*
Models, Biological
Oxygen / metabolism*
Oxygen Consumption
Pulmonary Artery / pathology
Pulmonary Circulation
Time Factors
Chemical
Reg. No./Substance:
0/Ketones; 363-24-6/Dinoprostone; 7782-44-7/Oxygen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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