Surgical repair of aortic coarctation in pediatric age: A single center two decades experience.

Background: To evaluate early and long-term results of surgical treatment of aortic coarctation (CoAo) in infants and children.

Methods: A retrospective clinical review of patients less than 18 years with CoAo, undergoing surgery between 1995 and 2015. Data were retrieved from our institutional database, to identify preoperative and postoperative characteristics. Statistical analysis was performed by bivariate, Cox's, and logistic regression analysis.

Results: Three hundred forty-one consecutive patients (male/female: 192/149; the median age at surgery of 25 days; interquartile range [IQR], 10-143 days) were included; 187 patients were less than 1 month (54.9%); 276 underwent extended end-to-end anastomosis (EEEA) (80.9%). Hypoplastic aortic arch (HAA) occurred in 34.6% and bicuspid aortic valve in 21.1%. The isolated type was present in 249 (73.0%). Significant postoperative complications occurred in 5.6%. Thirty-day mortality was 1.4%. At a median follow-up of 10.2 years (IQR, 6-15 years; FU completeness, 91.2%), there were eight late deaths (2.6%), most in the complex type. Among 298 survivors, 284 (95.3%) were in NYHA class I; 10 (3.0%) were on antihypertensive treatment. Reinterventions on aortic arch occurred only in 4.5%, being HAA a significant risk factor for reoperation ( P = 0.00173). Freedom from mortality and reintervention on aorta at 21 years were 93.5% and 93.6%, respectively.

Conclusions: Surgical repair of CoAo by EEEA without CPBP is a safe and low-risk procedure, concerning either early or late outcomes, despite the presence of HAA and neonatal age can influence recoarctation. Most patients are clinically well in the long-term, and only a few require antihypertensive therapy.