摘要
目的:研究心脏术后早期混合静脉血氧饱和度(SvO2)水平与术后并发症的关系。方法:95例心脏瓣膜置换术和冠状动脉旁路移植术术后患者。入ICU30min后在安静状态下记录SvO2值,以后每小时记录1次,共12h。按SvO2均数分为≤65%(Ⅰ组,n=36)、>65%(Ⅱ组,n=59)两组。统计各组患者的ICU停留时间、在院期间并发症发生数。结果:Ⅰ组术后低心排的发生率为50%(18/36),心律失常发生率为25%(9/36),低氧血症发生率为14%(5/36)均较高,和Ⅱ组间有显著差异,P值<0.05。两组间其他并发症的发生率无显著性差异。Ⅰ组的ICU停留时间(4.42±3.41)天较Ⅱ组(3.00±1.56)天明显延长,P<0.05。结论:心脏术后早期SvO2水平可影响术后并发症的发生。低SvO2水平时循环和呼吸系统并发症增多,ICU停留时间延长。
Objective： To investigate the possible changes of mixed venous oxygen saturation （Sv^-O2） after heart operation and to evaluate postoperative complications associated with different levels of Sv^-O2. Methods： Ninety-five patients who were to undergoing elective coronary artery bypass grafting or heart valve replacement were divided into two groups according to the means of Sv^-O2≤65% （group Ⅰ , n = 36） and 〉 65% （group Ⅱ , n = 59）. Sv^-O2 had been measured at 30 min and every hour in intensive care unit （ICU） for 12 h after operation in the relative quiet state . Data on duration of ICU stay and the incidence of inpatient complications were collected prospectively. Results： The incidence of inpatient complications of low cardiac output （50%）, arrhythmia （25%） and hypoxemia （14%） in group Ⅰ were statistically significantly different from group Ⅱ （P 〈 0.05）, whereas no statistically significant difference were found at other complications. And duration of ICU stayed in group I （4.42 ±3.41 ）day was significantly longer than group Ⅱ （3.00±1.56） day（P 〈 0.05）. Conclusion： Value of Sv^-O2 in early period after heart operation would significantly affect the incidence of complications. Moreover, incidence of complications of circulation and respiratory system was greater and duration of ICU stay was longer at the lower level of Sv^-O2.
出处
《南京医科大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第11期824-826,共3页
Journal of Nanjing Medical University(Natural Sciences)
关键词
混合静脉血氧饱和度
心脏手术
并发症
mixed venous oxygen saturation
heart operation
complication
