Late hemodynamic changes in percutaneous mitral valvuloplasty

Percutaneous mitral valvuloplasty (PMV) was performed in 57 patients with mitral stenosis. Twenty-three women and 34 men (mean age 28±10 mean ± SD) were included in the study. A single-balloon (trefoil or bifoil) technique was used in 49 patients and a double-balloon (trefoil ± monofoil) technique in eight. After a 3-month follow-up period, right- and left-sided cardiac catheterization was repeated. In the single-balloon group there was improvement in the mitral valve gradient (16.10±5.99 to 4.41±2.03 mm Hg), mean left atrial pressure (22.65±6.13 to 9.76±3.01 mm Hg), and mitral valve area (0.89±0.22 to 1.95±0.46 cm 2/m 2). Mean pulmonary artery pressure and mean pulmonary wedge pressure decreased to 19.33±4.19 mm Hg and 10.73±2.60 mm Hg from 32.94±7.90 mm Hg and 21.49±5.98 mm Hg. Cardiac output increased to 6.86±0.56 L/min from 5.57±0.66. All improvements were statistically significant ( p