Pulmonary artery (PA) sling is a rare vascular anomaly and is o en associated with various degrees of tracheal stenosis. e aim of this study is to review the surgical outcomes and tracheal growth a er the PA sling repair. Methods: From August 2006 to August 2015, consecutive six patients (median age, 6.7 months; range, 2.7-21.7 months) underwent surgical repair of PA sling at our institute. All patients did not undergo tracheoplasty. We evaluated the degree of tracheal growth a er the PA sling

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... epair using computed tomography (CT). Results: e median follow-up was 10.5 years (range, 5.5-14.5 years). ere were no operative deaths but only one late death. One patient required balloon angioplasty because of le PA stenosis. CT showed signi cant growth of the tracheal lumen diameter in all six patients. e mean diameter of the narrowest section of the trachea increased from 2.2 mm to 3.9 mm a er the PA sling repair (p<0.01). Additionally, the stenotic segment ratio improved from 54% to 26% a er the PA sling repair (p<0.01). Conclusions: Because of the su cient tracheal growth a er the PA sling repair, no additional tracheoplasty was required consequently, and furthermore early and late mortality rates was low.