Late outcomes of surgical reconstruction of peripheral pulmonary arteries

ABSTRACT Objective The ideal management of peripheral pulmonary artery stenosis is still controversial. We adopted a primary surgical approach to this complex lesion with excellent early outcomes. In this study, we analyzed our late outcomes. Methods We performed a retrospective review of 91 biventricular patients who underwent peripheral pulmonary artery reconstruction from March 2008 to July 2020. Our surgical approach included either a single-stage complete repair through median sternotomy or a two-stage repair through sternotomy / left thoracotomy, depending on the degree of distal involvement of the left pulmonary artery branches. Results Median age was 26 months. Syndromic etiology was established in 54 patients (59.3%) vs. non-syndromic etiology in 37 patients (40.7%). Single-stage repair was achieved in 68 patients (74.7%). There were 2 (2.2%) in-hospital mortalities. The mean right ventricular/aortic systolic pressure ratio decreased from 1.07±0.20 pre-operatively to 0.32 ± 0.07 immediately postoperatively (P Conclusions Late outcomes of surgical reconstruction of peripheral pulmonary arteries are excellent and durable in various pathologies (syndromic and non-syndromic) with a significant reduction in right ventricular/aortic systolic pressure ratio, low mortality, and no re-intervention.