[Application of arterial duct stent in ductus-dependent hypoplastic right heart syndrome].

To summarize the experience of arterial duct (AD) stenting in children with ductus-dependent hypoplastic right heart syndrome (HRHS). Seven children including 4 cases of pulmonary atresia with intact ventricular septum (PA-IVS) with HRHS and 3 cases of critical pulmonary stenosis (CPS)-IVS with HRHS underwent AD stenting in Qingdao Women and Children's Hospital between January 2012 and January 2019. During the same period, 9 patients of PA-IVS with HRHS received Blalock Taussig (B-T) shunt. Two groups of children on the operation time, hospital stay time, intensive care time and mortality were compared. test or Mann-Whitney test was used for comparison between the two groups. There was no significant difference in the age (18 (7-100) . 17 (1-142) d, 31.000, 0.05) and weight ((3.8±1.1) (3.7±1.3) kg, 0.272, 0.05) between the AD stenting group and the B-T group.The operation time ((108±7) (160±49) min, -4.304), intensive care time ((3.4±1.0) (6.3±4.5) d, -8.692) and total hospitalization time ((10.3±1.0) . (26.3±1.0) d, -7.822) in the AD stenting group were differed significantly compared with the B-T group (all 0.05). The transcutaneous oxygen saturation improved significantly (0.723±0.125 0.926±0.005, -6.044, 0.05) after AD stenting. The diameter of AD stent ranged from 3.5 to 4.0 mm, and the length of AD stent was 16-21 mm. There were no complications such as vascular injury, acute thrombus, catheter spasm and death in the AD stenting group. The mortality of children in the B-T group was 3 in 9 cases. Three cases in the AD stenting group received pulmonary valvulotomy and bilateral Glenn operation at 6, 9 and 9 months after AD stenting, respectively. AD stenting is a feasible, effective, safe and minimally invasive procedure for children with ductus-dependent HRHS. It can even be used as an alternative to B-T shunt.