Effects of Different Hypothermia on Cerebral Oxygen Metabolism During Cardiopulmonary Bypass
- VernacularTitle:不同低温麻醉下体外循环对脑氧代谢的影响
- Author:
Liren HOU
;
Peili HAN
;
Yuanxu QIN
- Publication Type:Journal Article
- Keywords:
Different hypothermia;
Cardiopulmonary bypass;
Cerebral oxygen metabolism
- From:
Journal of Chinese Physician
2000;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effects of different hypothermia on cerebral oxygen metabolism during cardiopulmonary bypass(CPB).Methods 20 patients undergoing valvular replacements were randomly divided in two groups:shallow hypothermia group(30℃) and middle hypothermia group(26℃).Blood gas analysis and lactate concentration in arterial and internal jugular vein blood were monitored at 3 time points during operation,from which the arterial-internal jugular venous oxygen content difference(Ca-jvO 2),cerebral oxygen extraction ratio(ERO 2),cerebral lactate production(ADVL) were calculated.Results CaO 2,Ca-jvO 2 and ERO 2 of the two groups were significantly reduced(P0 05) at the same time points.Ca-jvO 2 at the T 3 time point was both lower(P
