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  • Title: [Percutaneous mitral valvuloplasty. Immediate results with the 30 mm diameter dilatation balloon].
    Author: Ubago JL, Larmán M, Sáenz A, Montes J, Llamas A, Barrutieta I, Martínez G, Querejeta R, Gallo I.
    Journal: Rev Esp Cardiol; 1992 Oct; 45(8):493-7. PubMed ID: 1470737.
    Abstract:
    Percutaneous balloon dilatation of the mitral valve is a promising alternative to surgical treatment for patients with mitral stenosis. We analysed echocardiographic and haemodynamic results in 62 consecutive patients who underwent mitral dilatation with a big and one chamber balloon (30 mm diameter). The relationship between the dilatation balloon area and body surface was 4.2 (in 98% of patients it was bigger than 3.5). In the whole series we get significant improvements in the haemodynamic parameters and mitral areas (0.91 cm2 versus 1.78 cm2)(p < 0.005). According to the echocardiographic score, patients were divided in two groups. Good results (mitral area > 1.5 cm2, and final, valve area 50% greater than the initial area), were obtained in 93% of patients with a score of 8 or less, and in 45% of patients with a score bigger than 8. Seventy-five percent of patients with bad results (mitral area < 1.5 cm2) were in atrial fibrillation versus 37% of patients where we get a good results. Mortality of procedure was nulle, and two patients required surgery because of procedure failure for mitral insufficiency. We can conclude: percutaneous mitral valvuloplasty with single balloon is valid alternative, and good results can be expected if there is a good relationship between the area of balloon and patient's body-surface. The echocardiographic score and presence of atrial fibrillation can predict immediate results of this technique.
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