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Fascicular heart blocks and risk of adverse cardiovascular outcomes: Results from a large primary care population.
Nyholm, Benjamin Chris; Ghouse, Jonas; Lee, Christina Ji-Young; Rasmussen, Peter Vibe; Pietersen, Adrian; Hansen, Steen Møller; Torp-Pedersen, Christian; Køber, Lars; Haunsø, Stig; Olesen, Morten Salling; Svendsen, Jesper Hastrup; Graff, Claus; Holst, Anders Gaarsdal; Nielsen, Jonas Bille; Skov, Morten Wagner.
Afiliación
  • Nyholm BC; Department of Cardiology, The Heart Centre, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark. Electronic address: benjamin.nyholm@regionh.dk.
  • Ghouse J; Department of Cardiology, The Heart Centre, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.
  • Lee CJ; Department of Cardiology, Copenhagen University Hospital-Herlev-Gentofte, Hellerup, Denmark; Department of Cardiology, Copenhagen University Hospital-Nordsjaellands Hospital, Hilleroed, Denmark.
  • Rasmussen PV; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark; Department of Cardiology, Copenhagen University Hospital-Herlev-Gentofte, Hellerup, Denmark.
  • Pietersen A; Copenhagen General Practitioners' Laboratory, Copenhagen, Denmark.
  • Hansen SM; Department of Cardiology, Copenhagen University Hospital-Nordsjaellands Hospital, Hilleroed, Denmark.
  • Torp-Pedersen C; Department of Cardiology, Copenhagen University Hospital-Nordsjaellands Hospital, Hilleroed, Denmark.
  • Køber L; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
  • Haunsø S; Department of Cardiology, The Heart Centre, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical
  • Olesen MS; Department of Cardiology, The Heart Centre, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark; Department of Biomedical Sciences, University of Copenhagen, Co
  • Svendsen JH; Department of Cardiology, The Heart Centre, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical
  • Graff C; Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.
  • Holst AG; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.
  • Nielsen JB; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark; Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark; K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and Nursing, Faculty o
  • Skov MW; Department of Cardiology, The Heart Centre, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Laboratory for Molecular Cardiology, The Heart Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.
Heart Rhythm ; 19(2): 252-259, 2022 02.
Article en En | MEDLINE | ID: mdl-34673253
ABSTRACT

BACKGROUND:

Fascicular heart blocks can progress to complete heart blocks, but this risk has not been evaluated in a large general population.

OBJECTIVE:

The purpose of this study was to investigate the association between various types of fascicular blocks diagnosed by electrocardiographic (ECG) readings and the risk of incident higher degree atrioventricular block (AVB), syncope, pacemaker implantation, and death.

METHODS:

We studied primary care patients referred for ECG recording between 2001 and 2015. Cox regression models were used to estimate hazard ratios (HRs) as well as absolute risks of cardiovascular outcomes.

RESULTS:

Of 358,958 primary care patients (median age 54 years; 55% women), 13,636 (3.8%) had any type of fascicular block. Patients were followed up to 15.9 years. We found increasing HRs of incident syncope, pacemaker implantation, and third-degree AVB with increasing complexity of fascicular block. Compared with no block, isolated left anterior fascicular block (LAFB) was associated with 0%-2% increased 10-year risk of developing third-degree AVB (HR 1.6; 95% confidence interval [CI] 1.25-2.05), whereas right bundle branch block combined with LAFB and first-degree AVB was associated with up to 23% increased 10-year risk (HR 11.0; 95% CI 7.7-15.7), depending on age and sex group. Except for left posterior fascicular block (HR 2.09; 95% CI 1.87-2.32), we did not find any relevant associations between fascicular block and death.

CONCLUSION:

We found that higher degrees of fascicular blocks were associated with increasing risk of syncope, pacemaker implantation, and complete heart block, but the association with death was negligible.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Bloqueo de Rama Tipo de estudio: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Heart Rhythm Año: 2022 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Bloqueo de Rama Tipo de estudio: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Heart Rhythm Año: 2022 Tipo del documento: Article