Abedi Jamshid, Ghafari Mohammad Ebrahim, Kheirkhah Jalal, Moladoust Hassan, Aghajankhah Mohammad Reza
School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
Department of Epidemiology and Biostatistics, Faculty of Health, Qom University of Medical Sciences, Qom, Iran.
ARYA Atheroscler. 2024;20(3):21-27. doi: 10.48305/arya.2024.41897.2907.
With the increase in the number of coronary artery bypass grafting (CABG) surgeries, the concern about complications after it has also increased. RV diastolic dysfunction (RVDD) is one of the post-CABG complications, and in this study, we intend to investigate its frequency and predictors.
In this cross-sectional study, eighty CABG candidate adult patients were included. A history of previous heart surgery or arrhythmia were the main exclusion criteria. After recording demographic and clinical information, echocardiography of the right ventricle (RV) was performed the day before the surgery and seven days later. The functional parameters were obtained according to the Guidelines for the Echocardiographic Assessment of the Right Heart in Adults.
Eighty patients with an average age of 60.25 ± 8.93 years participated in the study. Most patients were male (72.5%). Thirteen patients had RVDD before CABG (30.8% grade I and 69.2% grade II). All these 13 patients had RVDD grade II after surgery (P=0.046). Among 67 patients with normal RV function before CABG, RV function was normal in only 20 patients (29.9%) after CABG. The incidence of grade I and grade II post-CABG RVDD (post-coronary artery bypass grafting right ventricle diastolic dysfunction) was 11.9% and 58.2%, respectively (P<0.001). Univariate logistic regression analysis showed that there was no association between pre-CABG variables, neither demographic nor echocardiographic, and the occurrence of RVDD after CABG.
CABG surgery is associated with a high incidence of RVDD, which cannot be predicted before surgery. The short-term and long-term consequences of this complication are still unknown.
随着冠状动脉旁路移植术（CABG）手术数量的增加，对其术后并发症的关注也在增加。右心室舒张功能障碍（RVDD）是CABG术后并发症之一，在本研究中，我们旨在调查其发生率及预测因素。
在这项横断面研究中，纳入了80例成年CABG候选患者。既往心脏手术史或心律失常史是主要排除标准。记录人口统计学和临床信息后，于手术前一天及术后七天进行右心室（RV）超声心动图检查。根据成人右心超声心动图评估指南获取功能参数。
80例平均年龄为60.25±8.93岁的患者参与了研究。大多数患者为男性（72.5%）。13例患者在CABG术前存在RVDD（I级占30.8%，II级占69.2%）。所有这13例患者术后均为RVDD II级（P = 0.046）。在67例CABG术前RV功能正常的患者中，CABG术后仅20例（29.9%）RV功能正常。CABG术后I级和II级RVDD（冠状动脉旁路移植术后右心室舒张功能障碍）的发生率分别为11.9%和58.2%（P<0.001）。单因素逻辑回归分析显示，CABG术前变量，无论是人口统计学变量还是超声心动图变量，与CABG术后RVDD的发生均无关联。
CABG手术与RVDD的高发生率相关，且术前无法预测。该并发症的短期和长期后果仍不清楚。
