Abstract
Background : To find out if systolic blood pressure changes during percutaneous Mitral comissurotomy (PMC) could be a reliable guide to staged decision making and evaluate stop point. Method: 102 patients with moderate to severe mitral stenosis were chosen for PMC with Inue technique. Echocardiographic and homodynamic criteria were used as references for decision making during procedure .Systolic blood pressure changes were also evaluated by a fluid filled system at the end of each balloon inflation and deflation. To reach optimal results balloon inflation was done only once in one case (0.98%),twice in16.66% and three times in 82.35% of cases .in every stage of balloon inflation, trans-mitral gradient was compared with changes in systolic blood pressure. Results: correlation between systolic blood pressure drop and trans-mitral gradient changes were analyzed with Pearson method and via regression formula. Relation between final mitral orifice area and systolic blood pressure was also analyzed with T test. Significant relation was found in every stage:R;0.63 in stage 1,R:0.823 in stage 2, R:673in stage 3 in regression formula.
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