Document Detail


Differences in accessory pathway location by sex and race.
MedLine Citation:
PMID:  19914144     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The etiology of accessory pathway (AP) formation is generally unknown.
OBJECTIVE: The purpose of this study was to test the hypothesis that AP formation is genetically mediated by examining whether AP location differs by sex and/or race, using sex and race as proxies to distinguish genetically different individuals.
METHODS: This was a single-center, retrospective cohort study of 282 consecutive patients undergoing their first electrophysiology study that revealed at least one AP between 2004 and 2008. Sex and race were compared with AP location determined by invasive electrophysiology study.
RESULTS: Eighty-nine (52%) males and 40 (36%) females had a left posterior AP (P = .006). Sixty-four (57%) females had a right annular AP, compared with 55 (32%) males (P <.001). After adjusting for age and race, females had 2.8-fold greater odds of having a right annular AP compared with males (95% confidence interval [CI] 1.70-4.65 greater odds; P <.001). While right anterior (free-wall) pathways were rare in all other races (12%), a significantly larger proportion of Asians (n = 10, 26%) had a right anterior AP (P = .017). After adjusting for sex and age, Asians had 3.8-fold greater odds of having a right anterior AP compared with other races (95% CI 1.5-9.4 greater odds; P = .004).
CONCLUSIONS: Females more commonly had right annular APs, and Asians had right anterior APs substantially more frequently than other races. These findings suggest that the pathogenesis of AP formation may have a genetic component.
Authors:
Jonathan C Hsu; Ronn E Tanel; Byron K Lee; Melvin M Scheinman; Nitish Badhwar; Randall J Lee; Zian H Tseng; Jeffrey E Olgin; Gregory M Marcus
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural     Date:  2009-09-19
Journal Detail:
Title:  Heart rhythm : the official journal of the Heart Rhythm Society     Volume:  7     ISSN:  1556-3871     ISO Abbreviation:  Heart Rhythm     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-02-04     Completed Date:  2011-03-22     Revised Date:  2011-07-19    
Medline Journal Info:
Nlm Unique ID:  101200317     Medline TA:  Heart Rhythm     Country:  United States    
Other Details:
Languages:  eng     Pagination:  52-6     Citation Subset:  IM    
Affiliation:
University of California, San Francisco, CA, USA.
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MeSH Terms
Descriptor/Qualifier:
Accessory Atrioventricular Bundle / epidemiology*,  genetics
Adolescent
Adult
California / epidemiology
Child
Cohort Studies
Confidence Intervals
Continental Population Groups*
Electrophysiologic Techniques, Cardiac
Female
Heart Conduction System / pathology*
Humans
Male
Odds Ratio
Retrospective Studies
Sex Factors
Tachycardia, Atrioventricular Nodal Reentry / epidemiology,  genetics
Tachycardia, Reciprocating / epidemiology,  genetics
Wolff-Parkinson-White Syndrome / epidemiology
Young Adult
Grant Support
ID/Acronym/Agency:
KL2 RR024130/RR/NCRR NIH HHS; L30 HL078035-01/HL/NHLBI NIH HHS; L30 HL078035-02/HL/NHLBI NIH HHS; L30 HL078035-03/HL/NHLBI NIH HHS
Comments/Corrections

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


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