Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.

Duchenne muscular dystrophy (DMD) is an inherited myogenic disorder due to mutations in the dystrophin gene on chromosome Xp21.1. We designed this study to determine the prevalence of left bundle branch block (LBBB), whether there is a relationship between LBBB and genetic pattern, and to assess pre...

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Main Authors: Abdallah Fayssoil, Rabah Ben Yaou, Adam Ogna, Cendrine Chaffaut, France Leturcq, Olivier Nardi, Karim Wahbi, Denis Duboc, Frederic Lofaso, Helene Prigent, Bernard Clair, Pascal Crenn, Guillaume Nicolas, Pascal Laforet, Anthony Behin, Sylvie Chevret, David Orlikowski, Djillali Annane
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5755816?pdf=render
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spelling doaj-b7986a31a7364b46be754655f2ea90f82020-11-25T01:49:44ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01131e019051810.1371/journal.pone.0190518Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.Abdallah FayssoilRabah Ben YaouAdam OgnaCendrine ChaffautFrance LeturcqOlivier NardiKarim WahbiDenis DubocFrederic LofasoHelene PrigentBernard ClairPascal CrennGuillaume NicolasPascal LaforetAnthony BehinSylvie ChevretDavid OrlikowskiDjillali AnnaneDuchenne muscular dystrophy (DMD) is an inherited myogenic disorder due to mutations in the dystrophin gene on chromosome Xp21.1. We designed this study to determine the prevalence of left bundle branch block (LBBB), whether there is a relationship between LBBB and genetic pattern, and to assess predictive factors for acute cardiac events and mortality in adult DMD patients.We reviewed the charts of DMD followed at the Home Mechanical Ventilation Unit of the Raymond Poincare University Hospital.A total of 121 patients, aged from 18 to 41 years have been included in our study. Median vital capacity (VC) was 12% [7; 19.5] of predicted. Almost all patients were on home mechanical ventilation (95%). LBBB was present in 15 patients (13%); among them, 10 disclosed exonic deletions. After a median follow up of 6 years, 21 patients (17%) experienced acute heart failure (AHF), 7 patients (6%) supraventricular arrhythmia, 3 patients (2.4%) ventricular tachycardia, 4 patients (3%) significant electrical disturbances. LBBB was significantly associated with cardiac events (OR = 12.7; 95%CI [3.78-42.7]; p <0.0001) and mortality (OR = 4.4; 95%CI [1.44-13.7]; p 0.009). Presence of residual dystrophin protein was not associated with significant less cardiac events. Age and LVEF were also predictive factors for cardiac events and mortality.LBBB is relatively frequent in DMD and is a major predictive factor for cardiac events and mortality. Presence of residual dystrophin protein was not associated with a lower incidence of cardiac events.http://europepmc.org/articles/PMC5755816?pdf=render
collection DOAJ
language English
format Article
sources DOAJ
author Abdallah Fayssoil
Rabah Ben Yaou
Adam Ogna
Cendrine Chaffaut
France Leturcq
Olivier Nardi
Karim Wahbi
Denis Duboc
Frederic Lofaso
Helene Prigent
Bernard Clair
Pascal Crenn
Guillaume Nicolas
Pascal Laforet
Anthony Behin
Sylvie Chevret
David Orlikowski
Djillali Annane
spellingShingle Abdallah Fayssoil
Rabah Ben Yaou
Adam Ogna
Cendrine Chaffaut
France Leturcq
Olivier Nardi
Karim Wahbi
Denis Duboc
Frederic Lofaso
Helene Prigent
Bernard Clair
Pascal Crenn
Guillaume Nicolas
Pascal Laforet
Anthony Behin
Sylvie Chevret
David Orlikowski
Djillali Annane
Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.
PLoS ONE
author_facet Abdallah Fayssoil
Rabah Ben Yaou
Adam Ogna
Cendrine Chaffaut
France Leturcq
Olivier Nardi
Karim Wahbi
Denis Duboc
Frederic Lofaso
Helene Prigent
Bernard Clair
Pascal Crenn
Guillaume Nicolas
Pascal Laforet
Anthony Behin
Sylvie Chevret
David Orlikowski
Djillali Annane
author_sort Abdallah Fayssoil
title Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.
title_short Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.
title_full Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.
title_fullStr Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.
title_full_unstemmed Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.
title_sort left bundle branch block in duchenne muscular dystrophy: prevalence, genetic relationship and prognosis.
publisher Public Library of Science (PLoS)
series PLoS ONE
issn 1932-6203
publishDate 2018-01-01
description Duchenne muscular dystrophy (DMD) is an inherited myogenic disorder due to mutations in the dystrophin gene on chromosome Xp21.1. We designed this study to determine the prevalence of left bundle branch block (LBBB), whether there is a relationship between LBBB and genetic pattern, and to assess predictive factors for acute cardiac events and mortality in adult DMD patients.We reviewed the charts of DMD followed at the Home Mechanical Ventilation Unit of the Raymond Poincare University Hospital.A total of 121 patients, aged from 18 to 41 years have been included in our study. Median vital capacity (VC) was 12% [7; 19.5] of predicted. Almost all patients were on home mechanical ventilation (95%). LBBB was present in 15 patients (13%); among them, 10 disclosed exonic deletions. After a median follow up of 6 years, 21 patients (17%) experienced acute heart failure (AHF), 7 patients (6%) supraventricular arrhythmia, 3 patients (2.4%) ventricular tachycardia, 4 patients (3%) significant electrical disturbances. LBBB was significantly associated with cardiac events (OR = 12.7; 95%CI [3.78-42.7]; p <0.0001) and mortality (OR = 4.4; 95%CI [1.44-13.7]; p 0.009). Presence of residual dystrophin protein was not associated with significant less cardiac events. Age and LVEF were also predictive factors for cardiac events and mortality.LBBB is relatively frequent in DMD and is a major predictive factor for cardiac events and mortality. Presence of residual dystrophin protein was not associated with a lower incidence of cardiac events.
url http://europepmc.org/articles/PMC5755816?pdf=render
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