Surgical intervention in neonates with XXXX .

@entity1 @entity3009 @entity849 @entity5015 @entity519 @entity204
The surgical experience with 18 consecutive neonates with @entity849 (PS) and intact ventricular septum was reviewed. All @entity1 had cardiac catheterization with calculation of right ventricular volume. Group A @entity1 (N = 8) had a small right ventricular end-diastolic volume (RVEDV less than 72% of predicted). Group B @entity1 (N = 10) had a normal or enlarged RVEDV. All @entity1 had a closed pulmonary valvotomy. Five Group A @entity1 required a systemic-pulmonary shunt or @entity3009 ( @entity5015 ) after operation; one @entity1 died. Nine Group B @entity1 did well after valvotomy; one moribund @entity1 died after valvotomy and shunt. Six of 16 survivors required reoperation: valvectomy in four @entity1 and shunt takedown in two @entity1 . Four of the six @entity1 who had reoperation also had a transannular patch. There was one unrelated late @entity204 . All long-term survivors are asymptomatic. Recatheterization in four @entity1 with a small right ventricle (RV) documented significant RV growth. In conclusion, most neonates with critical PS can be managed with closed valvotomy. @entity1 with a small RV may require PGE1 or a shunt after operation for persistent @entity519 . Some @entity1 with a small RV will have significant RV growth after valvotomy.
