Mechanism of the right ventricular reverse remodeling after balloon pulmonary valvuloplasty in patients with congenital pulmonary stenosis: A three-dimensional echocardiographic study.

There was a highly significant drop in pressure gradient cardiac catheterization from a mean of 67.84 ± 13.47 mmHg before BPV to a mean of 27.56 ± 3.80 mmHg immediately after BPV and that concurred with the drop of the pressure gradient measured by echocardiography that dropped from a mean of 80.4 ± 28.8 mmHg before BPV to a mean of 17.1 ± 8.4 mmHg immediately after successful BPV; this drop in the PG was maintained during the follow-up.

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