Prognostic Value of the Three-Dimensional Right Ventricular Ejection Fraction in Patients With Asymptomatic Aortic Stenosis

被引:5
|
作者
Nabeshima, Yosuke [1 ]
Kitano, Tetsuji [2 ]
Takeuchi, Masaaki [3 ]
机构
[1] Univ Occupat & Environm Hlth, Sch Med, Dept Internal Med 2, Kitakyushu, Fukuoka, Japan
[2] Wakamatsu Hosp Univ Occupat Environm Hlth, Dept Cardiol & Nephrol, Kitakyushu, Japan
[3] Hosp Univ Occupat, Dept Lab & Transfus Med, Sch Med, Kitakyushu, Fukuoka, Japan
来源
FRONTIERS IN CARDIOVASCULAR MEDICINE | 2021年 / 8卷
关键词
asymptomatic aortic stenosis; prognosis; 3DE; RVEF; CART analysis; NATURAL-HISTORY; ADULTS;
D O I
10.3389/fcvm.2021.795016
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: The right ventricular (RV) function is an important prognostic marker of asymptomatic aortic stenosis (AS). However, previous publications have not addressed the additive value of conventional RV parameters over left heart parameters. Whether three-dimensional echocardiography (3DE)-derived RV ejection fraction (RVEF) has prognostic utility independent of 3DE derived left heart parameters is also unknown. We investigated the prognostic utility of 3DE RVEF in patients with asymptomatic AS.Methods: We retrospectively selected 392 asymptomatic AS patients. RVEF, left ventricular ejection fraction (LVEF) and left atrial volumes (LAVs) were measured using 3DE datasets. We determined the association of those parameters, as well as of aortic valve replacement (AVR), and Charlson's comorbidity index with cardiac events. We also analyzed whether RVEF has incremental value over two-dimensional echocardiography (2DE) RV parameters.Results: During a median follow-up of 27 months, 57 patients developed cardiac events, and 68 patients received AVR. Univariate Cox proportional hazard analysis revealed that RVEF was associated with cardiac events (p < 0.001). Multivariate analysis revealed that RVEF was significantly associated with cardiac events (p < 0.001) even after adjusting for AVR, Charlson's comorbidity index, LVEF, LAV, E/e', and indexed aortic valve area (iAVA). An incremental value of RVEF over left heart parameters was also demonstrated using a nested regression model. Classification and regression-tree analysis selected RVEF first with a cut-off value of 41%. RVEF had incremental value over iAVA, LVEF, and 2DE conventional RV parameters for its association with future outcomes.Conclusions: 3DE RVEF had significant prognostic value even after adjusting for comorbidities, left heart parameters, and conventional 2DE RV parameters in asymptomatic aortic stenosis.
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页数:10
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