Benfluorex and unexplained valvular heart disease: a case-control study.

<h4>Background</h4>Recent case reports suggest that benfluorex, a fenfluramine derivative used in the management of overweight diabetic patients and dyslipidemia, is associated with cardiac valve regurgitation.<h4>Methods</h4>We conducted a case-control study. Eligible patien...

Full description

Bibliographic Details
Main Authors: Irène Frachon, Yves Etienne, Yannick Jobic, Grégoire Le Gal, Marc Humbert, Christophe Leroyer
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2010-04-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20405030/pdf/?tool=EBI
_version_ 1818402811330691072
author Irène Frachon
Yves Etienne
Yannick Jobic
Grégoire Le Gal
Marc Humbert
Christophe Leroyer
author_facet Irène Frachon
Yves Etienne
Yannick Jobic
Grégoire Le Gal
Marc Humbert
Christophe Leroyer
author_sort Irène Frachon
collection DOAJ
description <h4>Background</h4>Recent case reports suggest that benfluorex, a fenfluramine derivative used in the management of overweight diabetic patients and dyslipidemia, is associated with cardiac valve regurgitation.<h4>Methods</h4>We conducted a case-control study. Eligible patients were those admitted in the cardiology or the cardiac surgery units of our hospital between January, 1(st) 2003 and June 30(th) 2009, with mitral insufficiency diagnostic codes (ICD-10 I340 and I051). Patients with either a primary cause (degenerative, known rheumatic heart disease, infectious endocarditis, congenital, radiation-induced valvular disease, associated connective and/or vasculitis disease, trauma, tumor) or a secondary (functional) cause were considered as having an "explained" mitral regurgitation. Other patients were considered as having an "unexplained" mitral regurgitation and were included as cases. For each case, two controls were matched for gender and for the closest date of birth, among a list of patients with an "explained" mitral regurgitation. Drug exposures were assessed blindly regarding the case or control status, through contacts with patients, their family and/or their physicians.<h4>Results</h4>Out of the 682 eligible patients, 27 cases and 54 matched controls were identified. The use of benfluorex was reported in 22 patients: 19 of the 27 cases, versus 3 of the 54 controls, odds-ratio 17.1 (3.5 to 83), adjusted for body mass index, diabetes and dexfenfluramine use.<h4>Conclusion</h4>The use of benfluorex is associated with unexplained mitral regurgitation.
first_indexed 2024-12-14T08:14:18Z
format Article
id doaj.art-783878fcc1a94d1eb71fc3cc69bea834
institution Directory Open Access Journal
issn 1932-6203
language English
last_indexed 2024-12-14T08:14:18Z
publishDate 2010-04-01
publisher Public Library of Science (PLoS)
record_format Article
series PLoS ONE
spelling doaj.art-783878fcc1a94d1eb71fc3cc69bea8342022-12-21T23:09:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032010-04-0154e1012810.1371/journal.pone.0010128Benfluorex and unexplained valvular heart disease: a case-control study.Irène FrachonYves EtienneYannick JobicGrégoire Le GalMarc HumbertChristophe Leroyer<h4>Background</h4>Recent case reports suggest that benfluorex, a fenfluramine derivative used in the management of overweight diabetic patients and dyslipidemia, is associated with cardiac valve regurgitation.<h4>Methods</h4>We conducted a case-control study. Eligible patients were those admitted in the cardiology or the cardiac surgery units of our hospital between January, 1(st) 2003 and June 30(th) 2009, with mitral insufficiency diagnostic codes (ICD-10 I340 and I051). Patients with either a primary cause (degenerative, known rheumatic heart disease, infectious endocarditis, congenital, radiation-induced valvular disease, associated connective and/or vasculitis disease, trauma, tumor) or a secondary (functional) cause were considered as having an "explained" mitral regurgitation. Other patients were considered as having an "unexplained" mitral regurgitation and were included as cases. For each case, two controls were matched for gender and for the closest date of birth, among a list of patients with an "explained" mitral regurgitation. Drug exposures were assessed blindly regarding the case or control status, through contacts with patients, their family and/or their physicians.<h4>Results</h4>Out of the 682 eligible patients, 27 cases and 54 matched controls were identified. The use of benfluorex was reported in 22 patients: 19 of the 27 cases, versus 3 of the 54 controls, odds-ratio 17.1 (3.5 to 83), adjusted for body mass index, diabetes and dexfenfluramine use.<h4>Conclusion</h4>The use of benfluorex is associated with unexplained mitral regurgitation.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20405030/pdf/?tool=EBI
spellingShingle Irène Frachon
Yves Etienne
Yannick Jobic
Grégoire Le Gal
Marc Humbert
Christophe Leroyer
Benfluorex and unexplained valvular heart disease: a case-control study.
PLoS ONE
title Benfluorex and unexplained valvular heart disease: a case-control study.
title_full Benfluorex and unexplained valvular heart disease: a case-control study.
title_fullStr Benfluorex and unexplained valvular heart disease: a case-control study.
title_full_unstemmed Benfluorex and unexplained valvular heart disease: a case-control study.
title_short Benfluorex and unexplained valvular heart disease: a case-control study.
title_sort benfluorex and unexplained valvular heart disease a case control study
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20405030/pdf/?tool=EBI
work_keys_str_mv AT irenefrachon benfluorexandunexplainedvalvularheartdiseaseacasecontrolstudy
AT yvesetienne benfluorexandunexplainedvalvularheartdiseaseacasecontrolstudy
AT yannickjobic benfluorexandunexplainedvalvularheartdiseaseacasecontrolstudy
AT gregoirelegal benfluorexandunexplainedvalvularheartdiseaseacasecontrolstudy
AT marchumbert benfluorexandunexplainedvalvularheartdiseaseacasecontrolstudy
AT christopheleroyer benfluorexandunexplainedvalvularheartdiseaseacasecontrolstudy