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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Body Surface Area, Diastole, Echocardiography, Doppler, Color, Echocardiography, Doppler, Pulsed, Female, Humans, Male, Middle Aged, Myocardial Contraction, Myocardial Infarction, Observer Variation, Predictive Value of Tests, Prospective Studies, Reproducibility of Results, Stroke Volume, Time Factors, Ventricular Function, Left, Ventricular Remodeling.
user
Is velocity propagation of early diastole a valuable tool for left ventricular remodelling after the first myocardial infarction? Context: Velocity propagation (Vp) of early diastole is a known method for the evaluation of left ventricular (LV) diastolic function. Our purpose was to determine whether Vp is a valuable tool to characterize patients after acute myocardial infarction and LV remodelling (LVR). M-mode, two-dimensional and Doppler echocardiography were performed in 71 patients within the first 2 days, 1, 3 and 6 months after acute myocardial infarction. We measured the left atrium, LV diameters and volumes, peak early and late velocity (E, A) deceleration time, Vp, annular velocity (e) and calculated E/e. The patients were divided in two groups: (A) without early LVR (n=39) and (B) with early LVR (n=32). In the first evaluation, Vp was similar in both groups (36.37 vs. 35.49 cm/s, P=0.513). Late LVR (LLVR) (44%) had developed in patients from group A with significantly lower early Vp compared with patients without LLVR (31.52 vs. 40.12 cm/s, P=0.001), with persist values even after 6 months (29.41 vs. 40.85 cm/s, P=0.001). The values of Vp were similar in the first 2 days in patients from group B with developing (78%) and nondeveloping LLVR (35.29 vs. 36.60 cm/s, P=0.614). Differences became significant after 6 months (31.71 vs. 41.80 cm/s, P=0.001). The values of Vp of 35 cm/s or less from the first week in both groups correlated with LLVR (B=3.27, P=0.015). Changing of LV volumes significantly correlated with Vp; for end-diastolic volume/body surface area (r=0.21, P=0.041) and end-systolic volume/body surface area (r=0.30, P=0.014).
assistant
In this study, Vp was the only valuable Doppler echocardiographic tool that reflected early LVR and LLVR. Final Decision: yes