MCP represents a new, noninvasive, ECG-triggered circulation support system, which is effective for achieving hemodynamic improvement via afterload reduction. The use of MCP decreases postoperative complications and significantly shortens the hospital stay.

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The aim of this paper was to investigate cardiac remodelling in thyrotoxicosis. The geometric parameters of the left ventricle (LV) and the readings of tissue Doppler echocardiography were compared in 27 patients (mean age 53.3±9.2 years) who had first-diagnosed moderate thyrotoxicosis without concomitant cardiac pathology and in 16 healthy individuals (mean age 45.1±4.7 years). The baseline data and the results of incremental treadmill exercise tests were analyzed. It was shown that in the relatively early periods of thyrotoxicosis development, there were decreases in the left ventricle (LV) longitudinally and transversely and in the thickness of LV, without altering its sphericity and conicity. Along with weight loss, there were reductions in cardiac sizes with decreases in the local rates of cardiac wall movement, peak systolic and early diastolic rates of mitral movement velocities. During a treadmill test, there was a drastic reduction in the exercise tolerance threshold as compared to healthy individuals: 57.81±14.7 and 148.3±11.7 W, respectively.