Percutaneous Balloon Valvuloplasty with Inoue Balloon Catheter Technique for Pulmonary Valve Stenosis in Adolescents and Adults

BackgroundPercutaneous balloon pulmonary valvuloplasty is the procedure of choice for uncomplicated severe or symptomatic pulmonary stenosis. The present study describes our experience in balloon pulmonary valvuloplasty using the Inoue miral valve dilatation balloon catheter in adolescent and adult patients. Aims To assess the immediate and mid-term outcomes of percutaneous balloon valvuloplasty with Inoue miral valve dilatation balloon catheter in patients with age group between 18 to 25 years. Methods and results Between august 2015 and May 2017, we performed percutaneous balloon pulmonary valvuloplasty with Inoue miral valve dilatation balloon catheter in 14 patients (50 % females) aged 18 to 25 years. Following the procedure, the mean right ventricular systolic pressure and thePulmonary valvular peak-to-peak systolic gradient decreased from ( 200 to 60 mmHg, (p = 0.001) and ( 180 to 38 mmHg, p = 0.001), respectively.8 patients which were available for follow-up for 1 year had a mean residual peak gradient of 10 mmHg on Doppler and mean infundibular gradient was 10 mmHg. There was no further increase in grade of pulmonary regurgitation or restenosis on mid-term follow-up. Conclusion Percutaneous Inoue balloon technique is an attractive alternative with excellent mid-term results for adolescents and adults with isolated pulmonary valvular stenosis.