Eighty-eight @entity1 with @entity215 and two @entity1 with @entity1757 and @entity1146 underwent repair without right ventriculotomy (n = 43) or with a minimal right ventriculotomy (n = 47) of 10 to 15 mm. The @entity1757 was closed through the tricuspid valve in 75 @entity1 . The pulmonary valve was either preserved or reconstructed to maintain its competence. The age at operation was 1 or 2 years in 51 @entity1 . There was one operative death and there were no late deaths. The results of postoperative cardiac catheterization in the present series of @entity1 (n = 34) were compared with those of control @entity1 (n = 21) who had repairs with a conventional right ventriculotomy in the preceding period. There was no significant difference in right ventricular/left ventricular systolic pressure ratio or in cardiac index either at rest or during @entity3044 infusion between the two groups. The incidence of significant @entity338 (Grade greater than or equal to 2/4) was less (p less than 0.05) in the present @entity1 (47%, n = 34) than in the control @entity1 (81%, n = 21). The right ventricular end-diastolic volume index (ml/m2) was smaller in the present @entity1 than in the control @entity1 both at rest (91 +/- 37 versus 142 +/- 28, p less than 0.01) and during @entity3044 infusion (81 +/- 21 versus 109 +/- 30, p less than 0.01). The right ventricular ejection fraction was higher in the present @entity1 than in the control @entity1 during @entity3044 infusion (57% +/- 4% versus 49% +/- 6%, p less than 0.01). The incidence of @entity943 (Lown's grade greater than or equal to 2) was less in the present @entity1 (6/35) than in the control @entity1 (36/65) (p less than 0.005). This method of repair for @entity215 carries no more risk than the conventional method, and the results are better with respect to postoperative right ventricular function and @entity943 .

Ninety consecutive corrective operations for XXXX with or without minimal right ventriculotomy.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity215 :: ('MESH:D013771', 'Disease') :: ['tetralogy of Fallot'] @entity1757 :: ('MESH:D006345', 'Disease') :: ['ventricular septal defect'] @entity3044 :: ('MESH:D007545', 'Chemical') :: ['isoproterenol'] @entity338 :: ('MESH:D011665', 'Disease') :: ['pulmonary regurgitation'] @entity1146 :: ('MESH:D018633', 'Disease') :: ['pulmonary atresia'] @entity943 :: ('MESH:D001145', 'Disease') :: ['ventricular arrhythmia', 'ventricular arrhythmias']
@entity215 :: (MESH:D013771,Disease) :: ['tetralogy of Fallot']
