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- W2017332685 abstract "Balloon mitral valvotomy, using a new Twin AT catheter (two balloons attached side by side over one shaft), was performed in 110 consecutive cases. The age of the patients ranged from 19–78 yr (mean 46 ± 15). From a total of 94 females and 16 males, 23 of the patients (22%) had mitral valve calcification, 47 patients (46%) had atrial fibrillation, and 39 patients (37%) had mitral regurgitation (< +2). Twenty patients (18%) presented with restenosis following surgical commissurotomy. Total catheterization time was 101 ± 26 min and the duration of the valvotomy procedure was 37 ± 21 min in these cases. For the entire population, there was a significant reduction in mitral valve gradient (15 2 6 to 4.8 ± 2.6 mmHg, p < .001), an increase in mitral valve area (MVA) (1.1 ± 0.3 to 2.35 ± 0.7 cm2 ,p < .001), and a decrease in mean pulmonary arterial pressure (31 ± 12 to 26 ± 11, p <.002) after the balloon mitral valvotomy. Sixteen patients (1 4%) developed significant left to right shunt, and in 22 patients (20%) mitral regurgitation increased moderately but without resulting in emergency valve replacement. There was one incidence of embolic episode and one pericardial tamponade. Adequate hemodynamic results (MVA > 1.5 cm2 and % increase in MVA ≥ 50%) without major complications were obtained in 99 cases. In 9 patients with severely diseased valve (2 previous commissurotomy, one restenosis after balloon valvotomy), or small left ventricular cavity, insufficient results were obtained by the Twin-AT catheter. The Twin-AT balloon catheter was exchanged for larger 2 balloons combinations in 5 patients and lnoue catheter in 4, and significant improvement in MVA was obtained in 5 cases. Thus, BMV can be safely and effectively performed in most cases with this new Twin-AT catheter, thereby saving time and cost. © 1993 Wiley-Liss, Inc." @default.
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- W2017332685 date "1993-02-01" @default.
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- W2017332685 title "Balloon mitral valvotomy by using the twin-at catheter: Immediate results and complications in 110 patients" @default.
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- W2017332685 doi "https://doi.org/10.1002/ccd.1810280207" @default.
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