Document Detail


Prevalence of aortic valve prolapse with bicuspid aortic valve and its relation to aortic regurgitation: a cross-sectional echocardiographic study.
MedLine Citation:
PMID:  6507297     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Although aortic valve prolapse (AVP) has been suggested as a cause of aortic regurgitation (AR) in patients with bicuspid aortic valves, neither the frequency of AVP nor its relation to AR in this setting has been defined. To assess these relations, 64 patients with bicuspid aortic valves diagnosed by 2-dimensional echocardiography and 20 normal subjects, similarly distributed according to age and sex, were studied. The presence and degree of AVP were defined using 3 quantitative terms: aortic valve prolapse distance (AVPD), area (AVPA) and volume (AVPV). Each was corrected (c) for patient size with reference to the diameter of the aorta at the level of insertion of the valve cusps. In normal subjects, the AVPDc averaged 0.09 +/- 0.06 (range 0 to 0.16) and the AVPAc averaged 0.08 +/- 0.06 cm (range 0 to 0.15). In patients with bicuspid aortic valves, the AVPDc averaged 0.26 +/- 0.10 (range 0.11 to 0.59, p = 0.00005 vs normal subjects), whereas the AVPAc averaged 0.35 +/- 0.17 cm (range 0.05 to 0.90, p = 0.00005 vs normal subjects). When the AVPDc criteria were used, 81% of the bicuspid valves were abnormal; when the AVPAc criteria were used, 87% were abnormal. The degree of prolapse defined by the AVPVc, which considers both cusp area and degree of apical displacement, was significantly greater for patients with bicuspid aortic valve with clinical AR than for those without (p = 0.008). However, because of the overlap between groups, there was no point at which this measure uniquely separated patients with and without AR.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
W J Stewart; M E King; L D Gillam; D E Guyer; A E Weyman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  54     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1984 Dec 
Date Detail:
Created Date:  1984-12-26     Completed Date:  1984-12-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1277-82     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aortic Valve* / abnormalities*
Aortic Valve Insufficiency / diagnosis,  etiology*
Child
Child, Preschool
Echocardiography*
Female
Heart Valve Diseases / diagnosis
Humans
Infant
Infant, Newborn
Male
Middle Aged
Prolapse

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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