The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure Gradient
Increase in left ventricular (LV) mass develops as a compensatory mechanism against pressure overload in aortic valve stenosis. However, long-standing LV geometrical changes are related to poor prognosis. The LV geometrical change occurs after transcatheter aortic valve replacement (TAVR). The prese...
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doaj-02480fd750a5439594e25c92553d65b92020-11-25T03:19:23ZengMDPI AGJournal of Clinical Medicine2077-03832020-09-0193143314310.3390/jcm9103143The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure GradientSatoshi Yamaguchi0Yuka Otaki1Balaji K. Tamarappoo2Tetsuya Ohira3Hiroki Ikenaga4Jun Yoshida5Tarun Chakravarty6John Friedman7Daniel Berman8Florian Rader9Robert J. Siegel10Raj Makkar11Takahiro Shiota12Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USADepartment of Epidemiology, Fukushima Medical University, Fukushima 960-1247, JapanSmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USASmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USAIncrease in left ventricular (LV) mass develops as a compensatory mechanism against pressure overload in aortic valve stenosis. However, long-standing LV geometrical changes are related to poor prognosis. The LV geometrical change occurs after transcatheter aortic valve replacement (TAVR). The present study aimed to investigate the relationship between improvement in valvuloarterial impedance (Zva) and change in LV mass index (LVMI) and the ratio of LVMI to LV end-diastolic volume index (LVMI/LVEDVI). We compared these relationships to that between Zva and mean pressure gradient (MPG). Baseline and follow-up transthoracic echocardiograms of 301 patients who underwent TAVR from November 2011 to December 2015 were reviewed. Spearman correlation coefficient (ρ) was used to compare ΔLVMI and ΔLVMI/LVEDVI with Zva or MPG. The correlation between ΔZva and ΔLVMI (ρ = 0.47, <i>p</i> < 0.001) was superior to that between ΔMPG and ΔLVMI (ρ = 0.15, <i>p</i> = 0.009) (<i>p</i> for comparison < 0.001). The correlation between ΔZva and ΔLVMI/LVEDVI was statistically significant (ρ = 0.54, <i>p</i> < 0.001); in contrast, that of ΔMPG and ΔLVMI/LVEDVI was not. The improvement in Zva after TAVR was more closely related to LVMI and LVMI/LVEDVI reduction than MPG reduction.https://www.mdpi.com/2077-0383/9/10/3143aortic valve stenosisleft ventricular massleft ventricular remodeling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Satoshi Yamaguchi Yuka Otaki Balaji K. Tamarappoo Tetsuya Ohira Hiroki Ikenaga Jun Yoshida Tarun Chakravarty John Friedman Daniel Berman Florian Rader Robert J. Siegel Raj Makkar Takahiro Shiota |
spellingShingle |
Satoshi Yamaguchi Yuka Otaki Balaji K. Tamarappoo Tetsuya Ohira Hiroki Ikenaga Jun Yoshida Tarun Chakravarty John Friedman Daniel Berman Florian Rader Robert J. Siegel Raj Makkar Takahiro Shiota The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure Gradient Journal of Clinical Medicine aortic valve stenosis left ventricular mass left ventricular remodeling |
author_facet |
Satoshi Yamaguchi Yuka Otaki Balaji K. Tamarappoo Tetsuya Ohira Hiroki Ikenaga Jun Yoshida Tarun Chakravarty John Friedman Daniel Berman Florian Rader Robert J. Siegel Raj Makkar Takahiro Shiota |
author_sort |
Satoshi Yamaguchi |
title |
The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure Gradient |
title_short |
The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure Gradient |
title_full |
The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure Gradient |
title_fullStr |
The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure Gradient |
title_full_unstemmed |
The Impact of Valvuloarterial Impedance on Left Ventricular Geometrical Change after Transcatheter Aortic Valve Replacement: A Comparison between Valvuloarterial Impedance and Mean Pressure Gradient |
title_sort |
impact of valvuloarterial impedance on left ventricular geometrical change after transcatheter aortic valve replacement: a comparison between valvuloarterial impedance and mean pressure gradient |
publisher |
MDPI AG |
series |
Journal of Clinical Medicine |
issn |
2077-0383 |
publishDate |
2020-09-01 |
description |
Increase in left ventricular (LV) mass develops as a compensatory mechanism against pressure overload in aortic valve stenosis. However, long-standing LV geometrical changes are related to poor prognosis. The LV geometrical change occurs after transcatheter aortic valve replacement (TAVR). The present study aimed to investigate the relationship between improvement in valvuloarterial impedance (Zva) and change in LV mass index (LVMI) and the ratio of LVMI to LV end-diastolic volume index (LVMI/LVEDVI). We compared these relationships to that between Zva and mean pressure gradient (MPG). Baseline and follow-up transthoracic echocardiograms of 301 patients who underwent TAVR from November 2011 to December 2015 were reviewed. Spearman correlation coefficient (ρ) was used to compare ΔLVMI and ΔLVMI/LVEDVI with Zva or MPG. The correlation between ΔZva and ΔLVMI (ρ = 0.47, <i>p</i> < 0.001) was superior to that between ΔMPG and ΔLVMI (ρ = 0.15, <i>p</i> = 0.009) (<i>p</i> for comparison < 0.001). The correlation between ΔZva and ΔLVMI/LVEDVI was statistically significant (ρ = 0.54, <i>p</i> < 0.001); in contrast, that of ΔMPG and ΔLVMI/LVEDVI was not. The improvement in Zva after TAVR was more closely related to LVMI and LVMI/LVEDVI reduction than MPG reduction. |
topic |
aortic valve stenosis left ventricular mass left ventricular remodeling |
url |
https://www.mdpi.com/2077-0383/9/10/3143 |
work_keys_str_mv |
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