Hemodynamic Stress Echocardiography in Patients Supported With a Continuous-Flow Left Ventricular Assist Device

被引：25

作者：

Andersen, Mads ^{[1
]}

Gustafsson, Finn ^{[1
]}

Madsen, Per Lav ^{[1
]}

Brassard, Patrice ^{[2
]}

Jensen, Anette Schophuus ^{[1
]}

Secher, Niels ^{[2
]}

Hassager, Christian ^{[1
]}

Nordsborg, Nikolai ^{[2
]}

Moller, Jacob Eifer ^{[1
]}

机构：

[1] Rigshosp, Copenhagen Univ Hosp, Dept Cardiol, Ctr Heart, DK-2100 Copenhagen, Denmark

[2] Rigshosp, Copenhagen Univ Hosp, Dept Anesthesia, Ctr Heart, DK-2100 Copenhagen, Denmark

来源：

JACC-CARDIOVASCULAR IMAGING | 2010年 / 3卷 / 08期

关键词：

echocardiograph; exercise test; heart failure; left ventricular assist device; FILLING PRESSURE; EXERCISE;

D O I：

10.1016/j.jcmg.2010.06.007

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Functional assessment of continuous-flow left ventricular assist devices (LVADs) is usually performed with the patient at rest. This study compared echocardiographic indices of contraction and filling pressure with invasive measures in 12 ambulatory LVAD patients undergoing symptom-limited bicycle exercise. Exercise induced an increase in cardiac output, systolic pulmonary artery pressure, and diastolic pulmonary artery pressure. Although no changes in left ventricular dimensions or fractional shortening were seen on echocardiography, systolic mitral annular motion (S') increased significantly (in parallel with cardiac output) and diastolic E/e' ratio decreased (correlating inversely with diastolic pulmonary artery pressure). These findings emphasize the potential role of exercise echocardiography in studying exercise hemodynamics in LVAD patients. (J Am Coll Cardiol Img 2010; 3:854-9) (C) 2010 by the American College of Cardiology Foundation

引用

页码：854 / 859

页数：6

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