Syncope in patients with cardiac pacemakers
Rev. bras. cir. cardiovasc
;
36(1): 18-24, Jan.-Feb. 2021. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-1155788
ABSTRACT
Abstract Introduction:
It is challenging to diagnose syncope in patients with pacemakers. Because these patients have increased morbidity and mortality risks, they require immediate attention to determine the causes in order to provide appropriate treatment. This study aimed to investigate the causes and predictive factors of syncope as well as the methods used to diagnose syncope in cardiac pacemaker patients.Methods:
Patients with pacemakers implanted owing to sinus node disease or atrioventricular block were evaluated with standardized questionnaires, endocavitary electrograms, and other tests based on the suspected causes of syncope. Mann-Whitney U tests were used to analyze continuous variables and Chi-squared or Fisher's exact tests were used for categorical variables. Logistic regression was used for multivariate analyses. Statistical significance was P<0.05.Results:
The study included 95 patients with pacemakers 47 experienced syncope in the last 12 months and 48 did not. Of the 100 documented episodes of syncope, 48.9% were vasovagal syncopes, 17% had cardiac-related causes, 10.6% had unknown causes, and 8.5% had pacemaker failure. The multivariate analysis showed that a New York Heart Association (NYHA) Functional Class II was a significant factor for developing syncope (P<0.01).Conclusion:
While the most common type of syncope in pacemaker patients was neurally mediated, it is important to perform detailed evaluations in this population as the causes of syncope can be life-threatening. The best diagnostic methods were stored electrogram analysis and the tilt table test. NYHA Functional Class II patients were found to have a higher risk for syncope.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Marcapaso Artificial
/
Síncope Vasovagal
/
Bloqueo Atrioventricular
Tipo de estudio:
Estudio diagnóstico
/
Estudio de etiología
/
Estudio pronóstico
Límite:
Humanos
Idioma:
Inglés
Revista:
Rev. bras. cir. cardiovasc
Asunto de la revista:
Cardiología
/
Cirugía General
Año:
2021
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Federal University of Ceará/BR
/
University of Fortaleza/BR
Similares
MEDLINE
...
LILACS
LIS