Yang Liu

and 7 more

Wu Yongtao

and 6 more

Yuefeng Cao

and 5 more

Abstract Background Subaortic stenosis (SAS) was a rare congenital heart disease of left ventricular outflow tract (LVOT), ranging from “isolated” lesions to “tunnel” or “diffuse” lesions. We conducted a retrospective study to describe the characteristics of patients with different lesions and analyze the risk factors for reoperation. Methods In this study, we examined a single-center retrospective cohort of SAS patients undergoing resection from 2010 to 2019. Patients were classified as simple lesion group (n = 37) or complex lesion group (n = 28). Demographics, perioperative findings, and clinical data were analyzed. Results The surgical effect of the two groups was significantly lower than that before the operation (p <0.05). The median age at operation was 6(3-11.8) years. There was no operative mortality. In complex lesion group, extracorporeal circulation time (CPB time), aortic cross clamp time (ACC time), mechanical ventilation time and ICU stay time were longer. The median follow-up period was 2.8 years (range 1-3.8), with two late death. Six patients (9.2%) required reoperation due to restenosis or severe aortic insufficiency. The freedom from reoperation rates at 5 years was 66.7% for simple lesion but only 52.3% for complex lesion (p = 0.036). Conclusions Although the lesions include many forms, subaortic stenosis resection was still satisfactory. However, the reoperation after initial surgical treatment was not infrequent, especially in patients with complex lesion.

Yao Yang

and 8 more

Background Ebstein’s anomaly (EA) is a kind of congenital heart disease, which is currently widely treated by cone reconstruction. However, prediction of postoperative recovery is still challenging. Methods A retrospective analysis was performed on EA cases undergoing cone reconstruction from January 2010 to January 2016. Univariate and multivariate logistic regression analyses were performed, with postoperative adverse events defined as dependent variable and pre- and intra-operative parameters defined as independent variables. Predictive capacity of preoperative SPO2 and Great Ormond Street (GOS) score was evaluated using areas under the curve of receiver operating characteristic (ROC). Results Preoperative SPO2 was 95.7 ± 5.20%. Cardiopulmonary bypass, aortic cross-clamp, postoperative mechanical ventilation, and hospitalization time were 101.7 ± 28.26 min, 60.9 ± 18.04 min, 16 hours (8, 22), and 8 days (7, 11), respectively. The incidence of total postoperative adverse events including low cardiac output syndrome, mechanical ventilation more than 3 days, postoperative hospitalization more than 2 weeks, postoperative re-intubation, extracorporeal membrane oxygenation assistance, and death was 13.1% (n=13). Low pre-operative SPO2 (P=0.001, OR=0.834), GOS score (P=0.021, OR=0.368), and cardiopulmonary bypass time (P=0.034, OR=1.021) were risk factors for adverse events. Multivariate logistic regression analysis showed that low preoperative SPO2 (P=0.002, OR=0.846) and GOS score (P=0.043, OR=0.577) were independent risk factors for adverse events. The areas of SPO2 and GOS score under the ROC curve were 0.764 and 0.740, respectively. Conclusions Low pre-operative SPO2 and GOS score were predictors of adverse events after cone reconstruction, and SPO2 was more convenient and objective than GOS score.