NON-INVASIVE ASSESSMENT OF LEFT VENTRICULAR FILLING PRESSURE IN PATIENTS WITH AORTIC STENOSIS AND ISCHEMIC HEART DISEASE

Abstract

Purpose: to assess left ventricular filling pressure (LVFP) in patients with aortic stenosis (AS) and ischemic heart disease (IHD) using methods of tissue Doppler imaging (figure E/Em) and impedance plethysmography (IP). Materials and methods . The study included three groups of patients: 40 with AS, 40 with IHD (constrictive coronarosclerosis) and 10 healthy people. In addition to the standard protocol echocardiography all the patients were examined using two survey methods for assessment of LVFP: tissue Doppler and IP. The statistical analysis of the material was performed using «Statistica», 6.0 for Windows. Results . The group with the AS was characterized by concentric hypertrophy of the left ventricular. The group with IHD was characterized by the mixed type of hypertrophy of the left ventricular and less significant growth of LVFP. Conclusion . In the AS group, the LVFP growth was determined according to the data of the two methods. In the IHD group, the LVFP growth was defined only by IP method which differentiates the two methods. The groups revealed the relation of LVFP (E/Em) with preload and the relation of LVFP (IP) with preload, afterload and left ventricular hypertrophy.