title: Stepwise Inoue balloon catheter valvuloplasty for congenital aortic valve stenosis: comparison with standard balloon catheter technique.
abstract: Experience with stepwise balloon dilatation of congenital aortic valve stenosis using the new Inoue balloon catheter in 16 patients (aged 12 +/- 4.6 years; group II) is presented. Results are compared with those obtained in 15 patients (10 +/- 6 years; group I) in whom standard balloon catheters were used. The procedure resulted in a similar transvalvar gradient reduction in both groups (83 +/- 25 to 34 +/- 14 mmHg in group I versus 84 +/- 21 to 28 +/- 10 mmHg in group II). Significant aortic incompetence occurred in three patients from group I and in four from group II. There was no difference in the average increase in AR grade between the groups. At follow-up (group I, 24 +/- 13 months; group II, 7 +/- 3 months) there was no significant change in transaortic gradient or aortic incompetence. Balloon aortic valvuloplasty for congenital aortic stenosis carries a risk of aortic incompetence. Stepwise dilatation of the stenosis does not prevent this complication. The Inoue balloon catheter offers technical advantages.
authors.affiliation: Department of General Cardiology and Cardiac Catheterisation Laboratory, National Institute of Cardiology, Warsaw, Poland.
authors.forename: W
authors.initials: W
authors.lastname: Ruzyllo
authors.forename: M
authors.initials: M
authors.lastname: Demkow
authors.forename: E
authors.initials: E
authors.lastname: Ksiezycka
authors.forename: M
authors.initials: M
authors.lastname: Ciszewski
authors.forename: W
authors.initials: W
authors.lastname: Szaroszyk
mesh_terms: D001022:Aortic Valve Insufficiency / Q000209:etiology; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D002404:Catheterization / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D002648:Child; D018619:Echocardiography, Doppler, Pulsed; D006439:Hemodynamics; D006801:Humans; D017725:Ventricular Pressure