Potential of CrSO2 combined with Pcv-aCO2 to predict length of stay in ICU after cardiac surgery in cyanotic infants
WEI Biyu1, LIU Yongzhe2, CHANG Yufei1, GAO Minglong2
1.Department of Anesthesiology, Shanxi Medical University, Taiyuan 030000, China; 2.The Seventh Medical Center of PLA General Hospital, Beijing 100000, China
Abstract:Objective To investigate the potential of cerebral oxygen saturation (CrSO2) combined with central venous arterial carbon dioxide partial pressure difference (Pcv-aCO2) to predict the length of stay in the ICU for cyanotic infants after cardiac surgery.Methods Thirty children of 0-1 year old with cyanotic congenital heart disease who underwent cardiac surgery under cardiopulmonary bypass (CPB) between June and December 2018 in the Seventh Medical Center of Chinese PLA General Hospital were selected. CrSO2, arterial blood carbon dioxide partial pressure (PaCO2), central venous blood carbon dioxide partial pressure (PcvCO2)、Lac、SaO2、Hb、MAP and T of these patients were recorded immediately after tracheal intubation and open arteriovenous (t1), 5 minutes after ascending aortic clamping (t2), 5 minutes after the ascending aorta was opened (t3), at the end of CPB(t4), 3 h after the end of CPB (t5), 8 h after the end of CPB (t6), 24 h after the end of CPB (t7). Pcv-aCO2 was calculated while postoperative length of ICU stay was recorded. The difference of perioperative Lac, CrSO2 SaO2、Hb、MAP、T and Pcv-aCO2 was compared between group S (length of stay in the ICU ≤ 9 days) and group L (length of stay in the ICU>9 days). The extent to which CrSO2 combined with Pcv-aCO2 could help predict the length of stay in the ICU for cyanotic infants after cardiac surgery was analyzed.Results There was no significant difference in Lac between group S and group L at t1, t2, t3, t4, t5, t6 or t7.Compared with group S, CrSO2 of group L was significantly reduced at t1, t2, t3, and t4 [(53.33±4.38)% & (59.33±4.38)%, (56.83±3.51)% & (63.00±3.67)%, (47.48±5.65)% & (52.51±2.54)%, (44.58±2.42)% & (49.44±3.60)%], but there was no significant difference in CrSO2 at t5, t6 and t7.Compared with group S, Pcv-aCO2 in group L was not significantly different at t1, t2, t3, and t4, but increased significantly at t5, t6, and t7 [(16.67±5.28)mmHg & (9.63±3.98) mmHg, (21.83±6.15) mmHg & (12.71±3.10)mmHg, (13.00±2.65)mmHg & (7.36±3.03)]. There was no significant difference in PaCO2, SaO2, Hb, MAP and T between group S and group L at each time point.Conclusions The decrease of CrSO2 during CPB and the increase of Pcv-aCO2 after CPB can help predict the extension of length of stay in the ICU.
魏碧玉, 刘永哲, 常宇飞, 高明龙. CrSO2联合Pcv-aCO2对发绀型婴幼儿心脏手术后ICU停留时间的预测意义[J]. 武警医学, 2019, 30(11): 952-955.
WEI Biyu, LIU Yongzhe, CHANG Yufei, GAO Minglong. Potential of CrSO2 combined with Pcv-aCO2 to predict length of stay in ICU after cardiac surgery in cyanotic infants. Med. J. Chin. Peop. Armed Poli. Forc., 2019, 30(11): 952-955.
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