Concomitant changes in ventricular depolarization and repolarization and long-term outcomes of biventricular pacing.
Aged
Bundle-Branch Block
/ physiopathology
Cardiac Resynchronization Therapy
/ methods
Cardiomyopathies
/ physiopathology
Cause of Death
Defibrillators, Implantable
Electrocardiography
Female
Heart Conduction System
/ physiopathology
Heart Ventricles
/ physiopathology
Humans
Male
Registries
Retrospective Studies
biventricular pacing
cardiac resynchronization therapy
heart failure
implantable cardioverter-defibrillator
ventricular arrhythmias
ventricular repolarization
Journal
Pacing and clinical electrophysiology : PACE
ISSN: 1540-8159
Titre abrégé: Pacing Clin Electrophysiol
Pays: United States
ID NLM: 7803944
Informations de publication
Date de publication:
11 2020
11 2020
Historique:
received:
20
05
2020
revised:
20
08
2020
accepted:
06
09
2020
pubmed:
10
9
2020
medline:
14
10
2021
entrez:
9
9
2020
Statut:
ppublish
Résumé
Biventricular (BiV) pacing increases transmural repolarization heterogeneity due to epicardial to endocardial conduction from the left ventricular (LV) lead. However, limited evidence is available on concomitant changes in ventricular depolarization and repolarization and long-term outcomes of BiV pacing. Therefore, we investigated associations of BiV pacing-induced concomitant changes in ventricular depolarization and repolarization with mortality (i.e., LV assist device, heart transplantation, or all-cause mortality) and sustained ventricular arrhythmia endpoints. Consecutive BiV-defibrillator recipients with digital preimplantation and postimplantation electrocardiograms recorded between 2006 and 2015 at Duke University Medical Center were included. We calculated changes in QRS duration and corrected JT (JTc) interval and split them by median values. For simplicity, these variables were named QRS We included 528 patients (median age, 68 years; male, 69%). No correlation between changes in QRS duration and JTc interval was observed (P = .295). Compared to QRS Among BiV-defibrillator recipients, QRS
Sections du résumé
BACKGROUND
Biventricular (BiV) pacing increases transmural repolarization heterogeneity due to epicardial to endocardial conduction from the left ventricular (LV) lead. However, limited evidence is available on concomitant changes in ventricular depolarization and repolarization and long-term outcomes of BiV pacing. Therefore, we investigated associations of BiV pacing-induced concomitant changes in ventricular depolarization and repolarization with mortality (i.e., LV assist device, heart transplantation, or all-cause mortality) and sustained ventricular arrhythmia endpoints.
METHODS
Consecutive BiV-defibrillator recipients with digital preimplantation and postimplantation electrocardiograms recorded between 2006 and 2015 at Duke University Medical Center were included. We calculated changes in QRS duration and corrected JT (JTc) interval and split them by median values. For simplicity, these variables were named QRS
RESULTS
We included 528 patients (median age, 68 years; male, 69%). No correlation between changes in QRS duration and JTc interval was observed (P = .295). Compared to QRS
CONCLUSION
Among BiV-defibrillator recipients, QRS
Identifiants
pubmed: 32901967
doi: 10.1111/pace.14065
pmc: PMC7669630
mid: NIHMS1635070
doi:
Types de publication
Journal Article
Observational Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
1333-1343Subventions
Organisme : NHLBI NIH HHS
ID : T32 HL069749
Pays : United States
Informations de copyright
© 2020 Wiley Periodicals LLC.
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