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You are here: Contents > 2014 > Volume 23 Number 4 July 2014 > AORTIC VALVE DISEASE > Relationship Between Bicuspid Aortic Valve Phenotype, Valvular Function, and Ascending Aortic Dimensions

Relationship Between Bicuspid Aortic Valve Phenotype, Valvular Function, and Ascending Aortic Dimensions

Jun Seok Kim1, Sung Min Ko2, Hyun-Keun Chee1, Je Kyoun Shin1, Meong Gun Song1, Hong Ju Shin3

Departments of 1Cardiovascular Surgery and 2Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, 3Department of Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Korea

Background and aim of the study: Bicuspid aortic valve (BAV) is known to be associated with aortic valve dysfunction and ascending aorta (AA) dilatation. However, the relationship between BAV morphology and AA dimensions remains unclear. Thus, the study aim was to characterize the aortic valve function and AA dimensions according to the presence of raphe and BAV phenotype.

Methods: A total of 164 patients with BAV who underwent aortic valve surgery between October 2007 and November 2012 was investigated. BAV was classified as either type I (anterior-posterior orientation) or type II (right-left orientation), and subdivided as raphe+ (presence of raphe) and raphe- (no raphe).

Results: Type I BAV was present in 103 patients (62.8%), and raphe+ in 100 (61.0%). Patients with raphe+ were

typically younger than those with raphe-, and male gender was more predominant (88.0% and 53.1%, respectively, p <0.05). Aortic regurgitation was more common in patients with type I and raphe+ BAV, and aortic stenosis in patients with type II and raphe- BAV. In patients with raphe+, the diameters of aortic annulus related to the body surface area (BSA) were larger, and the diameters of the tubular portion of AA indexed to BSA were smaller than in patients with raphe- (p <0.05).

Conclusion: BAV morphology is helpful for predicting the type of aortic valve dysfunction and the location of AA dilatation.

The Journal of Heart Valve Disease 2014;23:406-413
Relationship Between Bicuspid Aortic Valve Phenotype, Valvular Function, and Ascending Aortic Dimensions

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