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Research Article | Volume 3 Issue :2 (, 2013) | Pages 21 - 30
Pre-operative Speckle-tracking Imaging to Predict the Need for Right Ventricular Support in Patients Undergoing Left Ventricular Assist Device Implantation
Under a Creative Commons license
Open Access
Published
June 25, 2013
Abstract

Background: Right ventricular (RV) dysfunction after left ventricular assist device (LVAD) implantation significantly complicates post-device management and has been shown to be associated with increased mortality. Pre-operative identification of patients who may develop post-LVAD RV dysfunction is challenging. This study was designed to evaluate pre-operative echocardiographic speckle tracking imaging as a predictor of post operative RV dysfunction. Methods: Thirty-nine patients who underwent Heartmate II LVAD placement in a single center were studied. Pre- and post-operative clinical, hemodynamic, laboratory, and echocardiographic data were prospectively collected as part of an ongoing institutional LVAD database. RV strain parameters were measured retrospectively using off-line speckle- tracking analysis software. Results: Twenty five of 39 LVAD recipients developed acute RV failure during the early post-operative period. RV function in 14 of these recipients improved with inotropes and judicious adjustment of LVAD parameters. Eleven patients, however, expired despite aggressive medical therapy including 7 patients who underwent placement of an RVAD. These 11 individuals were identified as having significantly lower global RV strain prior to device placement (p<0.05). Seventy two percent of the patients with a peak longitudinal systolic RV strain higher than

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