Document Detail


The use of 3D transoesophageal echocardiography in clarifying the mechanism underlying a 'flexing' strut of a mitral valve replacement.
MedLine Citation:
PMID:  19939816     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
We report the case of a 76-year-old lady who had a mitral valve (MV) replacement for severe MV stenosis. Several days following the procedure, a routine transthoracic echocardiogram (TTE) was performed. Despite the prosthesis leaflets opening well anterograde maximum velocities were elevated; MV peak velocity of 2.4 m/s. A transoesophageal echocardiogram (TEE) demonstrated the superior strut of the prosthesis appearing to rotate inwards such that the ventricular (non-fixed) end of the struts approximate to one another during systole, reducing the effective orifice area for anterograde flow. A 3D TEE was performed. This showed that the valve struts were not parallel, with the planes of the struts converging from the base to the apex. However, this abnormal conformation appeared to be fixed rather than worsening in systole. The apparent movement of the posterior strut seen in the 2D TEE images appears to have resulted from systole movement of this strut partially out of the plane of the TEE (2D) cut. We believe the case demonstrates the value of 3D real-time TEE in the assessment of the MV prosthesis function.
Authors:
John R Payne; Vivek Pathi; Ruth Kelly; Piotr Sonecki
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2009-11-24
Journal Detail:
Title:  European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology     Volume:  11     ISSN:  1532-2114     ISO Abbreviation:  Eur J Echocardiogr     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-03-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100890618     Medline TA:  Eur J Echocardiogr     Country:  England    
Other Details:
Languages:  eng     Pagination:  192-4     Citation Subset:  IM    
Affiliation:
Golden Jubilee National Hospital, Beardmore Street, Clydebank, Glasgow, UK. jrp@tennick.com
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