| Low Body Mass Index Is Associated with a Positive Response during a Head-Up Tilt Test. | |
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MedLine Citation:
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PMID: 23035628 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Background: To describe the association between body mass index (BMI) and a positive response during a head-up tilt test (HUT) in patients referred for an investigation of syncope. Methods: Observational study of patients referred for the diagnostic evaluation of syncope. Patients were divided into four groups according to their BMI: <18.5 kg/m(2) , 18.5-24.9 kg/m(2) , 25-29.9 kg/m(2) , and > 30 kg/m(2) . Results: A total of 419 patients were evaluated. The mean age was 43 ± 22 years, and 62% were female. The prevalence of a positive tilt test was different between groups when stratified by BMI (P = 0.01), with a higher proportion of patients with positive tests among those with BMI <18.5 kg/m(2) compared with other groups (P = 0.05). Multivariate analysis also showed that underweight patients had a 3.9 times higher risk for a positive HUT response (P = 0.01); additionally, the use of contraceptive drugs was associated with a protective effect during HUT (odds ratio: 0.35, confidence interval:0.19-0.45, P = 0.001). Conclusion : In our sample, changes in BMI are associated with a positive response for HUT, and oral contraceptives seemed to protect against this response. Further studies are needed with larger numbers of patients to corroborate this finding. (PACE 2012;00:1-5). |
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Authors:
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Tiago Luiz Luz Leiria; Sônia Regina Barcellos; Maria Antonieta Moraes; Gustavo Glotz DE Lima; Teresa Kus; Juarez Nehaus Barbisan |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-4 |
Journal Detail:
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Title: Pacing and clinical electrophysiology : PACE Volume: - ISSN: 1540-8159 ISO Abbreviation: Pacing Clin Electrophysiol Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-5 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7803944 Medline TA: Pacing Clin Electrophysiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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©2012, The Authors. Journal compilation ©2012 Wiley Periodicals, Inc. |
Affiliation:
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From the *Electrophysiology and Tilt Department, Instituto de Cardiologia do Rio Grande do Sul - Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, Brazil; and †Arrhythmia Department, Hôpital du Sacré-Coeur (HSC) de Montréal, Montréal, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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