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  • Title: [Percutaneous balloon valvuloplasty for congenital aortic valve stenosis].
    Author: Saiki K, Suzuki K, Takagi J, Ishii M, Sato N, Akagi T, Toyoda O, Mikashima T, Inoue O, Kato H.
    Journal: J Cardiol; 1991; 21(3):667-78. PubMed ID: 1843518.
    Abstract:
    We performed percutaneous balloon aortic valvuloplasty for 10 patients with congenital aortic valve stenosis aged from 2 to 17 years and a 54-day-old infant with critical stenosis. The retrograde single balloon technique was used for 6 patients including the infant; the retrograde double balloon technique was used for 3 patients; and both techniques for 2 patients. The valvuloplasty was effective for 10 patients except for the infant in terms of the peak systolic pressure gradient between the left ventricle and aorta (from 80.6 +/- 21.9 to 29.4 +/- 17.0 mmHg). Follow-up cardiac catheterizations one year after valvuloplasty in 3 patients and 3 years after valvuloplasty in one patient disclosed no re-stenosis. Aortic regurgitation newly developed in one patient and advanced Sellers' classification I in 3 patients, however, all of them were asymptomatic and did not progress further. In the infant with critical stenosis, sufficient dilatation could not be achieved and acute myocardial infarction mainly at the lateral wall of the left ventricle developed during the valvuloplasty. He died 3 days after the valvuloplasty. The double balloon technique was found to be superior to the single balloon technique with the latter being ineffective in 2 cases, because the fixation of the balloon at the annulus was very difficult. Double balloon technique has low risk of vascular trauma and is applicable to a large sized annulus, because it enables blood supply between the 2 balloons during the inflation period.
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