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Congenital pulmonary valvular stenosis was relieved by percutaneous balloon valvuloplasty during
cardiac catheterization on 8 children aged 14 months to 8 years.
Before dilatation, the transpulmonary systolic pressure gradients ranged from 33 mmHg to 79
mmHg (Mean:52.00 ± 18.16 mmHg). There were significant reduction in the transpulmonic systolic
pressure gradients immediate after balloon dilatation (Mean:17.38±11.16mmHg). In follow up 4
patients, this decreased pressure gradients have... |
