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Brain tissue pO 2 and pCO 2 levels before and after cerebral revascularization
Author(s) -
Shields Christopher B.,
Roberts Esther,
Numoto Mitsuo
Publication year - 1980
Publication title -
microsurgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.031
H-Index - 63
eISSN - 1098-2752
pISSN - 0738-1085
DOI - 10.1002/micr.1920010404
Subject(s) - medicine , revascularization , brain tissue , myocardial infarction
Microvascular surgical techniques have made possible the improvement of cerebral blood flow, as demonstrated by angiography and by regional cerebral blood flow research. In this study, simultaneous mass spectrometer determinations of brain tissue and blood PO 2 , and pCO 2 , levels were used to evaluate the effectiveness of common carotid‐supraclinoid carotid anastomoses (CC‐SCA) in dogs. With blood pCO 2 maintained at a constant level, the baseline brain tissue pO 2 and pCO 2 levels were recorded. During the CC‐SCA procedure, which involved brain retraction and temporary vascular occlusion, brain tissue pO 2 levels fell to 40% of baseline and pCO 2 levels rose by 35%. Following restoration of flow via the anastomosis, the brain tissue pO 2 and pCO 2 levels agina reached baseline.