Non Invasive Imaging A1035 JACC April 1, 2014 Volume 63, Issue 12 PREDICTION OF IMMEDIATE LEFT VENTRICULAR DYSFUNCTION AFTER SUCCESSFUL AORTIC VALVE SURGERY FOR SEVERE AORTIC REGURGITATION: CONVENTIONAL TWO-DIMENSIONAL VERSUS SPECKLE-TRACKING PARAMETERS Poster Contributions Hall C Saturday, March 29, 2014, 10:00 a.m.-10:45 a.m. Session Title: Non Invasive Imaging: Advances in Aortic Valve Disease Abstract Category: 15. Non Invasive Imaging: Echo Presentation Number: 1102-46 Authors: Jeong Yoon Jang, Jong-Min Song, Min Jung Sin, Eun Jeong Lee, Hanul Choi, Jihyun Sohn, Cheol Hyun Chung, Jae Won Lee, Byung Joo Sun, Dae-hee Kim, Duk-Hyun Kang, Jae-Kwan Song, Asan Medical Center, Seoul, South Korea Background: We aimed to investigate speckle-tracking parameters in prediction of postoperative left ventricular (LV) dysfunction after aortic valve (AV) surgery in patients with severe aortic regurgitation (AR). Methods: Two-dimensional echocardiography and speckle-tracking imaging for global longitudinal, circumferential and radial strain or strain rate were performed in a total of 127 consecutive severe AR patients (age:48±15 years, 89 males) and postoperative LV ejection fraction (EF) was evaluated within 7 days after surgery. Results: EF was signiﬁcantly decreased after AV surgery compared with preoperative value (52.5±7.9 to 42.6±11.0, %, p<0.01). In univariate linear regression analyses, preoperative LV dimensions, volumes, EF and longitudinal, circumferential and radial strains and strain rates were correlated with postoperative EF. In multivariate analysis, preoperative LV end-systolic dimension (ß=-0.32, p=0.03) and EF (ß=0.38, p<0.01) were independent predictors of postoperative EF. ROC curve analyses showed that areas under the curve of preoperative LV end-systolic dimension and EF tended to be larger than those of speckle-tracking parameters for prediction of postoperative severe LV dysfunction (EF<35%)(Fig.). Conclusion: Although preoperative LV speckle-tracking-derived deformation parameters are associated with postoperative EF, they are not superior to conventional parameters or EF in predicting postoperative LV dysfunction in patients with severe AR.

PREDICTION OF IMMEDIATE LEFT VENTRICULAR DYSFUNCTION AFTER SUCCESSFUL AORTIC VALVE SURGERY FOR SEVERE AORTIC REGURGITATION: CONVENTIONAL TWO-DIMENSIONAL VERSUS SPECKLE-TRACKING PARAMETERS

Download PDF Report

Upload
jae-kwan
View
215
Download
1

Embed Size (px)

Citation preview

Page 1: PREDICTION OF IMMEDIATE LEFT VENTRICULAR DYSFUNCTION AFTER SUCCESSFUL AORTIC VALVE SURGERY FOR SEVERE AORTIC REGURGITATION: CONVENTIONAL TWO-DIMENSIONAL VERSUS SPECKLE-TRACKING PARAMETERS

Non Invasive Imaging

A1035JACC April 1, 2014

Volume 63, Issue 12

predicTion of iMMediaTe lefT venTricUlar dysfUncTion afTer sUccessfUl aorTic valve sUrgery for severe aorTic regUrgiTaTion: convenTional Two-diMensional versUs speckle-Tracking paraMeTers

Poster ContributionsHall CSaturday, March 29, 2014, 10:00 a.m.-10:45 a.m.

Session Title: Non Invasive Imaging: Advances in Aortic Valve DiseaseAbstract Category: 15. Non Invasive Imaging: EchoPresentation Number: 1102-46

Authors: Jeong Yoon Jang, Jong-Min Song, Min Jung Sin, Eun Jeong Lee, Hanul Choi, Jihyun Sohn, Cheol Hyun Chung, Jae Won Lee, Byung Joo Sun, Dae-hee Kim, Duk-Hyun Kang, Jae-Kwan Song, Asan Medical Center, Seoul, South Korea

Background: We aimed to investigate speckle-tracking parameters in prediction of postoperative left ventricular (LV) dysfunction after aortic valve (AV) surgery in patients with severe aortic regurgitation (AR).

Methods: Two-dimensional echocardiography and speckle-tracking imaging for global longitudinal, circumferential and radial strain or strain rate were performed in a total of 127 consecutive severe AR patients (age:48±15 years, 89 males) and postoperative LV ejection fraction (EF) was evaluated within 7 days after surgery.

results: EF was significantly decreased after AV surgery compared with preoperative value (52.5±7.9 to 42.6±11.0, %, p<0.01). In univariate linear regression analyses, preoperative LV dimensions, volumes, EF and longitudinal, circumferential and radial strains and strain rates were correlated with postoperative EF. In multivariate analysis, preoperative LV end-systolic dimension (ß=-0.32, p=0.03) and EF (ß=0.38, p<0.01) were independent predictors of postoperative EF. ROC curve analyses showed that areas under the curve of preoperative LV end-systolic dimension and EF tended to be larger than those of speckle-tracking parameters for prediction of postoperative severe LV dysfunction (EF<35%)(Fig.).

conclusion: Although preoperative LV speckle-tracking-derived deformation parameters are associated with postoperative EF, they are not superior to conventional parameters or EF in predicting postoperative LV dysfunction in patients with severe AR.