利用升主动脉与降主动脉直径之比分析二叶式主动脉瓣患者的升主动脉扩张情况。

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.

作者信息

Nakamura Yuki, Ryugo Masahiro, Shikata Fumiaki, Okura Masahiro, Okamura Toru, Yasugi Takumi, Izutani Hironori

机构信息

Department of Cardiovascular and Thoracic Surgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime 791-0295, Japan.

出版信息

J Cardiothorac Surg. 2014 Jun 19;9:108. doi: 10.1186/1749-8090-9-108.

DOI:10.1186/1749-8090-9-108

PMID:24947564

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4229942/

Abstract

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.

摘要