RESUMEN
Wolff-Parkinson-White (WPW) syndrome is defined as the presence of an accessory atrioventricular pathway which is manifested as delta waves and short PR interval on electrocardiography (ECG). However, some WPW cases do not have typical findings on ECG and may remain undiagnosed unless palpitations occur. Sudden cardiac death may be the first manifestation of WPW and develops mostly secondary to degeneration of atrial fibrillation into ventricular fibrillation. In this report, we present a case of undiagnosed WPW with minimal preexcitation on ECG and who suffered an episode of malignant arrhythmia as the first manifestation of the disease.
El síndrome Wolff-Parkinson-White (WPW) se define como la presencia de una vía accesoria atrioventricular que se manifiesta como ondas delta, e intervalos cortos de PR en el electrocardiograma (ECG). Sin embargo, algunos casos de WPW no tienen resultados típicos en el ECG, y pueden permanecer sin diagnosticar a menos que se produzcan palpitaciones. La muerte cardíaca súbita puede ser la primera manifestación de WPW, y se produce principalmente de forma secundaria a la degeneración de la fibrilación auricular en fibrilación ventricular. En este reporte, presentamos un caso no diagnosticado de WPW con preexcitación mínima en el ECG, con un episodio de arritmia maligna como primera manifestación de la enfermedad.
Asunto(s)
Humanos , Masculino , Adulto , Arritmias Cardíacas/etiología , Síndrome de Wolff-Parkinson-White/complicaciones , Síndrome de Wolff-Parkinson-White/diagnóstico , Síndrome de Wolff-Parkinson-White/fisiopatología , Cardioversión Eléctrica , Ablación por Catéter , Electroencefalografía , Sistema de Conducción Cardíaco/fisiopatologíaRESUMEN
Wolff-Parkinson-White (WPW) syndrome is defined as the presence of an accessory atrioventricular pathway which is manifested as delta waves and short PR interval on electrocardiography (ECG). However, some WPW cases do not have typical findings on ECG and may remain undiagnosed unless palpitations occur. Sudden cardiac death may be the first manifestation of WPW and develops mostly secondary to degeneration of atrial fibrillation into ventricular fibrillation. In this report, we present a case of undiagnosed WPW with minimal preexcitation on ECG and who suffered an episode of malignant arrhythmia as the first manifestation of the disease.