Document Detail


Use of gated cardiac computed tomography angiography in the assessment of left ventricular assist device dysfunction.
MedLine Citation:
PMID:  20966744     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The purpose of this study is to describe the utility and limitations of gated contrast-enhanced cardiac computed tomography angiography in assessing left ventricular assist device function. Computed tomography angiography (CTA) was used in 14 patients with left ventricular assist devices (LVADs) who had persistent heart failure symptoms, hemodynamic instability, or potential problems with LVAD flows. Retrospectively gated contrast-enhanced CTA was performed on 64-detector scanner, and the CTA images were postprocessed in multiple curved projections on TeraRecon workstation. This study describes the use of CTA to identify LVAD-related issues that altered clinical management and explores the role of CTA and other techniques in evaluating LVAD function. Six of 14 LVAD patients who demonstrated no abnormality on CTA remained stable with medical management. In the remaining eight patients, CTA was abnormal, including abnormalities specifically related to the LVAD cannula. As a result of findings detected by CTA, six patients underwent surgical intervention, including device exchange and heart transplant. Computed tomography angiography is a noninvasive method that enhances diagnostic evaluation of patients with suspected LVAD dysfunction and can lead to changes in patient management.
Authors:
Deepak Acharya; Satinder Singh; José A Tallaj; William L Holman; James F George; James K Kirklin; Salpy V Pamboukian
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  ASAIO journal (American Society for Artificial Internal Organs : 1992)     Volume:  57     ISSN:  1538-943X     ISO Abbreviation:  ASAIO J.     Publication Date:    2011 Jan-Feb
Date Detail:
Created Date:  2010-12-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9204109     Medline TA:  ASAIO J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  32-7     Citation Subset:  IM    
Affiliation:
Division of Cardiovascular Diseases, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
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