Document Detail


The analysis of ascending aortic dilatation in patients with a bicuspid aortic valve using the ratio of the diameters of the ascending and descending aorta.
MedLine Citation:
PMID:  24947564     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: A bicuspid aortic valve (BAV) is associated with premature valve dysfunction and abnormalities of the ascending aorta. The aim of our study was to assess the degree of ascending aortic dilatation by measuring the ratio of the dimension of the AAo to that of the descending aorta (DAo) using preoperative computerized tomography (CT).
METHODS: A review of our institutional clinical database identified 76 patients undergoing aortic valve replacement (AVR) and 73 control patients undergoing off-pump coronary artery bypass (OPCAB group) between September 2009 and April 2012.
RESULTS: There were 17 patients diagnosed with BAV (BAV group), and the remaining 59 patients had a tricuspid aortic valve (TAV group). The ratios of the dimensions of the AAo to that of the DAo (AAo/DAo) for each group were: BAV, 1.58 ± 0.25; TAV, 1.32 ± 0.11; and OPCAB, 1.29 ± 0.12. Interestingly, the AAo/DAo of the BAV group was significantly larger than that of the other groups.
CONCLUSIONS: Although progressive AAo dilatation for BAV is well documented, the diameter of the AAo is currently the only estimate of aortic dilatation. In this study, we report that the ratio of the AAo and DAo diameters in patients with BAV can be a new index for assessing the dilatation of the AAo and differentiating the patients with BAV from those with TAV.
Authors:
Yuki Nakamura; Masahiro Ryugo; Fumiaki Shikata; Masahiro Okura; Toru Okamura; Takumi Yasugi; Hironori Izutani
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Publication Detail:
Type:  Journal Article     Date:  2014-06-19
Journal Detail:
Title:  Journal of cardiothoracic surgery     Volume:  9     ISSN:  1749-8090     ISO Abbreviation:  J Cardiothorac Surg     Publication Date:  2014  
Date Detail:
Created Date:  2014-07-03     Completed Date:  2014-09-25     Revised Date:  2014-11-16    
Medline Journal Info:
Nlm Unique ID:  101265113     Medline TA:  J Cardiothorac Surg     Country:  England    
Other Details:
Languages:  eng     Pagination:  108     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Aged
Aorta, Abdominal / radiography*
Aorta, Thoracic / radiography*
Aortic Aneurysm, Thoracic / diagnosis*,  etiology
Aortic Valve / abnormalities*,  radiography,  surgery
Female
Follow-Up Studies
Heart Valve Diseases / complications*,  radiography,  surgery
Heart Valve Prosthesis Implantation
Humans
Male
Reproducibility of Results
Retrospective Studies
Comments/Corrections

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