Document Detail

Switching to volumetric left atrial measurements: impact on routine echocardiographic practice.
MedLine Citation:
PMID:  20937598     Owner:  NLM     Status:  In-Data-Review    
AIMS: To define the change in the prevalence of reported left atrial enlargement (LAE) brought by using volumetric rather than linear measurements and to detect whether individuals with LAE that would have been missed by linear measurements represent a distinct subgroup of patients.
METHODS AND RESULTS: Left atrial (LA) linear dimensions and volumes were obtained and correlated with clinical and echocardiographical variables in 168 consecutive patients (age: 69 ± 10 years) undergoing routine echocardiographic studies. LAE was diagnosed in 109 out of 168 patients (65%) by volume criteria as opposed to 68 out of 168 patients (40%) by linear dimension criteria, resulting in a 'missing rate' of 37% for the latter. Patients with LAE diagnosed by volume but not by diameter measurements had a lower left ventricular mass index (LVMI).
CONCLUSION: Adopting volume measurements for the LA may result in almost 40% increase in the number of patients reported as having LAE. The lower LVMI found in these patients suggests that volume-based measurements are more sensitive and detect LAE at an earlier stage than diameter-based measurements, although the prognostic and management impact of this finding remains to be established.
Harin Vyas; Karen Jackson; Adrian Chenzbraun
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Publication Detail:
Type:  Journal Article     Date:  2010-10-10
Journal Detail:
Title:  European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology     Volume:  12     ISSN:  1532-2114     ISO Abbreviation:  Eur J Echocardiogr     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-02-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100890618     Medline TA:  Eur J Echocardiogr     Country:  England    
Other Details:
Languages:  eng     Pagination:  107-11     Citation Subset:  IM    
Royal Liverpool University Hospital, Prescott Street, Liverpool L7 8XP, UK.
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