Study on the associating factors with regional cerebral oxygen saturation values during cardiopulmonary bypass

Study on the associating factors with regional cerebral oxygen saturation values during cardiopulmonary bypass

Creators Fukuda Shiro

Creators Sakamoto Seishi

Creators Yoshimura Manabu

Creators Toriumi Takashi

Background: Regional cerebral oxygen saturation (rSO_2) is a pivotal indicator of brain ischemia during cardiovascular anesthesia. We evaluated the factors that might affect the rSO_2 values, examining the physiological parameters in two different time points during cardiopulmonary bypass (CPB). Methods: Fifty-nine patients undergoing cardiovascular surgery with CPB were retrospectively enrolled and their rSO_2 values were measured 30 min after aortic clamping (T1) and 30 min after the T1 measurement (T2). At each time point, the PaCO_2 was measured by arterial blood samples. Percent changes in the rSO_2 values were compared with percent changes in all parameters at each time point. Results: Percent changes in the rSO_2 values significantly correlated with percent changes in the PaCO_2 values on the left and right sides of the forehead (r = 0.417 vs. r = 0.387

[ISSN]0513-1812

[NCID]AA00594272