成人体外循环氧合血停跳液静脉回输对患者血钾水平的影响  

Inlfuence of Reinfusion of the Residual Blood Containing Blood Cardioplegia after Cardiopulmonary Bypass on the Concentration of Potassium in Adult Patients

作　　者：王会颖 楼松 龙村 李景文 

机构地区：[1]中国医学科学院中国协和医学院心血管病研究所阜外心血管病医院体外循环科,北京100037

出　　处：《中国血液流变学杂志》2013年第4期628-630,共3页Chinese Journal of Hemorheology

摘　　要：目的：研究成人氧合血停跳液静脉回输对患者血钾水平的影响。方法2013年3月～2013年7月40例择期瓣膜置换术成人患者随机分为体外循环氧合血停跳液回收组（n=20）和不回收组（n=20）。分别检测转机前、停跳液灌注完5 min、CPB中最后一次补钾5 min、CPB停机15 min、送ICU前、ICU 1 h、ICU 4 h、机器余血的血气。结果两组患者机器余血血钾浓度差异具有统计学意义（P＜0.05），含氧合血停跳液的机血血钾浓度较高。输注机血后两组血K^＋、Ca^2＋、Mg^2＋、pH值差异无统计学意义（P均＞0.05）。结论体外循环后含氧合血停跳液的机器余血回输不会引起患者血钾浓度增高，不会增加心率失常的发生机率。Objective To study the inlfuence of reinfusion of the residual blood containing blood cardioplegia after CPB on the concentration of potassium in adult patients. Methods From Mar 2013 to Jul 2013, 40 patients undergoing elective valve replacement were randomly divided into 2 groups, recycling blood cardioplegia group （n=20）, none recycling group （n=20）. The blood gas was performed at the following time points：before CPB, 5 minutes after administration of cold blood cardioplegia, 5 minutes after last potassium supplement during CPB, 15 minutes after CPB, before ICU administration, 1 h and 4 h after ICU administration. Blood gas of residual blood was also tested. Results The concentration of potassium in residual blood was signiifcantly different between two groups （recycling group 5.81±0.18 mmol/L vs non-recycling group 5.24±0.11 mmol/L, P〈0.05）. The concentra-tion of K^＋, Ca^2＋, Mg^2＋and pH were comparable between two groups after reinfusion of the residual blood （P〉0.05）. Conclusion In adult patients, reinfusion of the residual blood containing blood cardioplegia after CPB didn’t in-crease the potassium concentration.

关 键 词：体外循环 氧合血停跳液 血钾浓度 

分 类 号：R654.1[医药卫生—外科学]