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

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• 作者：Marcin Fijalkowski ; MD ; PhD^a ; ^{mfijalkowski@gumed.edu.pl} ; Andrzej Koprowski ; MD ; PhD^a ; Rafal Galaska ; MD ; PhD^a ; Marcin Gruchala ; MD ; PhD^a ; Rafal Pawlaczyk ; MD ; PhD^b ; Maciej Brzezinski ; MD ; PhD^b ; Jan Rogowski ; MD ; PhD^b ; Andrzej Rynkiewicz ; MD ; PhD ; FESC ; FACC^a
• 关键词：Aortic stenosis ; Ultrasonic tissue characterization ; Left ventricular reverse remodeling
• 刊名：Journal of the American Society of Echocardiography
• 出版年：2010
• 出版时间：October 2010
• 年：2010
• 卷：23
• 期：10
• 页码：1060-1066
• 全文大小：539 K

文摘

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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 ¡À 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.