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Heart Rhythm ; 18(5): 664-671, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33359877

RESUMO

BACKGROUND: A male predominance in Brugada syndrome (BrS) has been widely reported, but scarce information on female patients with BrS is available. OBJECTIVE: The purpose of this study was to investigate the clinical characteristics and long-term prognosis of women with BrS. METHODS: A multicenter retrospective study of patients diagnosed with BrS and previous electrophysiological study (EPS) was performed. RESULTS: Among 770 patients, 177 (23%) were female. At presentation, 150 (84.7%) were asymptomatic. Females presented less frequently with a type 1 electrocardiographic pattern (30.5% vs 55.0%; P <.001), had a higher rate of family history of sudden cardiac death (49.7% vs 29.8%; P <.001), and had less sustained ventricular arrhythmias (VAs) on EPS (8.5% vs 15.1%; P = .009). Genetic testing was performed in 79 females (45% of the sample) and was positive in 34 (19%). An implantable cardioverter-defibrillator was inserted in 48 females (27.1%). During mean (± SD) follow-up of 122.17 ± 57.28 months, 5 females (2.8%) experienced a cardiovascular event compared to 42 males (7.1%; P = .04). On multivariable analysis, a positive genetic test (18.71; 95% confidence interval [CI] 1.82-192.53; P = .01) and atrial fibrillation (odds ratio 21.12; 95% CI 1.27-350.85; P = .03) were predictive of arrhythmic events, whereas VAs on EPS (neither with 1 or 2 extrastimuli nor 3 extrastimuli) were not. CONCLUSION: Women with BrS represent a minor fraction among patients with BrS, and although their rate of events is low, they do not constitute a risk-free group. Neither clinical risk factors nor EPS predicts future arrhythmic events. Only atrial fibrillation and positive genetic test were identified as risk factors for future arrhythmic events.


Assuntos
Síndrome de Brugada/diagnóstico , Morte Súbita Cardíaca/etiologia , Eletrocardiografia/métodos , Medição de Risco/métodos , Saúde da Mulher , Adulto , Síndrome de Brugada/complicações , Síndrome de Brugada/fisiopatologia , Morte Súbita Cardíaca/epidemiologia , Feminino , Seguimentos , Humanos , Incidência , Masculino , Portugal/epidemiologia , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Espanha/epidemiologia , Taxa de Sobrevida/tendências , Fatores de Tempo
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