Improvement of Ultrasonic Myocardial Properties after Aortic Valve Replacement for Pure Severe Aortic Stenosis: The Predictive Value of Ultrasonic Tissue Characterization for Left Ventricle Reverse Remodeling.
J Am Soc Echocardiogr. 2010 Aug 30;
Authors: Fijalkowski M, Koprowski A, Galaska R, Gruchala M, Pawlaczyk R, Brzezinski M, Rogowski J, Rynkiewicz A
BACKGROUND: Aortic stenosis leads to left ventricular hypertrophy and accumulation of fibrillar collagens. The analysis of integrated backscatter (IBS) parameters provides information on ultrasonic myocardial properties. METHODS: The study population consisted of 58 patients with aortic stenosis. They were followed up for an average 18 +/- 5 months after aortic valve replacement (AVR). Traditional transthoracic echocardiography and analysis of IBS reflectivity were performed before AVR and during the control visit after AVR. RESULTS: A significant reduction in left ventricular mass index, a significant increase in the mean cyclic variation of IBS, and a decrease in absolute end-diastolic IBS intensity were observed after AVR. CONCLUSIONS: These data suggest improvements in ultrasonic myocardial properties after AVR. Preoperative analysis of IBS parameters might provide additional information for predicting left ventricular reverse remodeling in patients a mean of 1.5 years after AVR for aortic stenosis.
PMID: 20810242 [PubMed - as supplied by publisher]
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