Perioperative outcomes in off-pump coronary artery bypass grafting patients older than 80 years with left ventricular dysfunction or left ventricular normal: a comparative study based on propensity score matching
10.3760/cma.j.cn112139-20200211-00079
- VernacularTitle:左心功能不全和左心功能正常的高龄患者非体外循环冠状动脉旁路移植术围手术期结果的比较研究
- Author:
Mengjiao QIAN
1
;
Kun HUA
;
Liang ZHANG
;
Yuan ZHOU
;
Xiubin YANG
;
Xuguang PENG
Author Information
1. 云南省滇南中心医院（红河州第一人民医院）心胸外科，云南省蒙自市 661199
- Keywords:
Coronary artery disease;
Coronary artery bypass, off-pump;
Ventricular dysfunction, left;
Aged, 80 and over
- From:
Chinese Journal of Surgery
2020;58(11):882-885
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To examine the outcome of off-pump coronary artery bypass (OPCAB) in elderly patients with left ventricular dysfunction.Methods:From June 2008 to July 2016, 252 patients aged over 80 years underwent isolated OPCAB at Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, these patients′ data were collected. The left ventricular dysfunction group (ejection fraction (EF): 35% to 50%) was comprised of 31 patients aged (82.0±2.1) years (range: 80 to 88 years), including 25 males and 6 females. Through matching one-to-one on propensity scores, 31 patients (EF >50%) were included into the left ventricular normal group. Among them, there were 25 males and 6 females, aged (81.9±1.9) years (range: 80 to 89 years). Postoperative mortality and complications between the matched groups were compared using the t test, Wilcoxon rank-sum test, χ 2 test or Fisher exact test. Results:Between the dysfunction group and normal group, the preoperative serum creatinine was 144.6(66.0) μmol/L vs. 94.9(43.2) μmol/L ( M( Q R), Z=3.177, P=0.033), respectively, while the pre-discharge serum creatinine was 147.0(59.0) μmol/L vs. 92.0(24.0) μmol/L ( Z=-2.685, P=0.007), respectively. In dysfunction group, the perioperative intra-aortic balloon counterpulsation (IABP) utilization rate was higher (25.8%(8/31) vs. 3.2%(1/31), P=0.026), the total hospitalization day was longer (17(15) days vs. 14(8)days, Z=2.054, P=0.012), the preoperative hospitalization day was longer too (7(7) days vs. 5(4) days, Z=-2.457, P=0.014). However, there was no significant difference in the incidence of postoperative mortality (9.7%(3/31) vs. 3.2%(1/31), P=0.612) and other prognostic indicators between the two groups. Conclusions:The elderly patients, with light and moderate left ventricular insufficiency, are characterized by the abnormal increase in renal function and the rise of IABP utilization due to hemodynamic disorder in OPCAB perioperative period. Preoperative treatment for cardiac insufficiency may be the cause of prolonged preoperative and total hospital stay. However, there is no significant difference in the postoperative mortality and other complications compared with the patients of normal left ventricular function.
