Is coronary sinus blood oxygen tension behavior determined by myocardial oxygen tension variation during cardiac reperfusion?
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/01/1988
|
Resumo |
The relationship between coronary sinus blood oxygen tension (CSPO 2) and myocardial oxygen tension (MPO 2) variations during cardiac ischemia and reperfusion was studied in anesthetized open-chest dogs. Oxygen tension was measured by a polarographic method. Ischemia resulted in a slightly decreased CSPO 2 and a more pronounced reduction of MPO 2. After reperfusion the CSPO 2 rose rapidly and transiently before it returned gradually to the control level. By contrast, during the recovery period, the MPO 2 increased slowly, with recovery occurring long after the peak of CSPO 2. These data suggest that during the reperfusion phase, the CSPO 2 variation is probably due to opening of the myocardial arteriovenous shunts instead of an increase of flow through the myocardial capillary bed. |
Formato |
207-213 |
Identificador |
http://dx.doi.org/10.1536/ihj.29.207 Japanese Heart Journal, v. 29, n. 2, p. 207-213, 1988. 0021-4868 http://hdl.handle.net/11449/63838 10.1536/ihj.29.207 2-s2.0-0023935403 2-s2.0-0023935403.pdf |
Idioma(s) |
eng |
Relação |
Japanese Heart Journal |
Direitos |
openAccess |
Palavras-Chave | #animal experiment #blood oxygen tension #coronary sinus #dog #heart muscle ischemia #heart muscle oxygen consumption #heart muscle reperfusion #nonhuman #priority journal #Animal #Coronary Circulation #Coronary Disease #Coronary Vessels #Dogs #Male #Myocardium #Oxygen #Polarography |
Tipo |
info:eu-repo/semantics/article |