CATHETER BALLOON VALVULOPLASTY IN MITRAL- STENOSIS (CHOICE OF METHOD OF OPERATION AND EVALUATION OF ITS RESULTS)

Clinico-experimental study was undertaken for the choice of the optima l method for radiosurgical correction of the disease. Catheter balloon valvuloplasty (CBV) suggested by V. A. Silin and V. K. Sukhov with th e use of balloon catheters of their design was found to be the most ef fective and safe method. This method was used to operate on 265 patien ts with mitral stenosis and various degree of affection of the valvula r apparatus and complications in the form of calcinosis of the valve a nd cardiac fibrillation. Thirteen of the patients were operated on in pregnancy. CBV produced a positive therapeutic effect in more than 95 % of patients. Increase of the mitral orifice area by 2.2-3.4 times wa s attended by a corresponding reduction of the diastolic pressure grad ient at the mitral valve and systolic pressure in the pulmonary artery . The increase in the area of the mitral orifice and the positive chan ges of the hemodynamics values were more marked in patients with sever e stenosis. The small number of complications (up to 9.5 %) and the lo w lethality (up to 0.86 %) allow the CBV method to be recommended as o ne of the main methods of surgical correction of mitral stenosis.