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The prevalence of eustachian valve on transoesophageal echo examination.
MedLine Citation:
PMID:  22286815     Owner:  NLM     Status:  In-Data-Review    
Background. The Eustachian valve (EV) is an embryonic structure redirecting the blood flow from the inferior vena cava through the foramen ovale. It may persist in adults as a floating membrane in the right atrium. A large EV can be associated with thrombosis, embolization, bacterial endocarditis, etc. The prevalence of EV in the normal population is unknown. Aim. to assess the prevalence and size of EV in unselected patients examined by transoesophageal echo. Methods. 1100 consecutive patients were examined for various reasons by a single operator and interpreter. Routine check was made for the presence of EV in the right atrium. Only patients with a mobile EV and not with a simple rigid rim were counted. Three measurements of the EV length at the level of the aortic valve (i.e. 90°C) were made off-line and the longest distance considered. If the EV was not visualized and recorded as a straight line because of its chaotic movement, the picture of the valve was segmented into several separated valve portions and the sum taken as the true length. Results. 46 patients (24 males) with EV were identified out of total 1100 pts examined. The average length of the EV was 23.6 ± 9.7 mm (7-47 mm, median 23 mm). Conclusions. The finding of a persisting Eustachian valve on transoesophageal echo examination is not rare. The prevalence was similar in men and in women. Bearing in mind the possible complications associated with a large valve, we recommend that a proper description of persistent EV is included in routine transoesophageal echo reports.
Dan Marek; Eliska Sovova; Eva Kocianova
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biomedical papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia     Volume:  155     ISSN:  1213-8118     ISO Abbreviation:  Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2012-01-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101140142     Medline TA:  Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub     Country:  Czech Republic    
Other Details:
Languages:  eng     Pagination:  283-5     Citation Subset:  IM    
Ist Department of Internal Medicine, Cardiology, University Hospital Olomouc, Czech Republic.
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