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  • Title: [Subendocardial blood flow index in relation to selected parameters of left-ventricular function in patients with aortic valve stenosis].
    Author: Dubiel JS, Petkow-Dimitrow P, Reichhart J, Jurczak W, Zmudka K.
    Journal: Przegl Lek; 1992; 49(3):73-5. PubMed ID: 1438898.
    Abstract:
    The aim of our studies was to estimate the relation between the reduction of the subendocardial blood flow, expressed by DPTI/TTI ratio and the grade of aortic stenosis determined by the maximal systolic aortic gradient. Additionally the influence of subendocardial blood flow reduction of left ventricular function and ECG alterations was assessed. The analyzed data were obtained during the cardiac catheterizations in a group of 30 patients (average age 32 years). The mean value of DPTI/TTI ratio was decreased (0.49 +/- 0.2) and associated with the elevated mean value of AGmax (72.2 +/- 38.1 mmHg). Negative correlation between DPTI/TTI and AGmax (r = -0.73; p less than 0.003), DPTI/TTI and LVEDP (r = -0.53; p less than 0.005) occurred. Depression of ST-T segment in EEG and episodes of anginal pain accompanied the reduction of subendocardial blood flow. We concluded that reduction in subendocardial blood flow in patients with SA-may lead subendocardial ischaemia of the left ventricular wall with subsequent of its function.
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