Supervivencia a 30 días y 1 año de pacientes con muerte súbita con posterior colocación de dispositivo cardíaco implantable en un hospital de alta complejidad / Patients with sudden cardiac death receiving an implantable cardiac device: survival at 30 days and one year

Background: The use of implantable cardiac devices in patients with sudden cardiac arrest has contributed to their survival. Aim: To determine the survival rate at 30 days and one year after hospital discharge of patients who had a cardiac arrest with subsequent placement of an implantable cardiac device. Material and Methods: Twenty-three patients older than 18 years who presented sudden extra-institutional or intra-institutional death with subsequent implantation of an implantable cardiac device and whose survival was recorded at 30 days and one year, were included. A univariate analysis was performed. Results: Eighteen patients had an extra institutional cardiac arrest. All patients were discharged alive. We could not ascertain the health status of one patient at follow-up. Twenty-one patients had a Cerebral Performance Category (CPC) of 1 at discharge. One patient died of a stroke within 30 days and one patient died due to an arrhythmic electrical storm one year later. Twenty patients survived at least one year after hospital discharge. Conclusions: Survival at 30 days and one year, was high in patients with sudden death or cardiac arrest who required intracardiac devices.

Isquemia miocárdica y prolongación del intervalo QT / Myocardial ischemia and QT interval prolongation

La prolongación anormal del intervalo QT tiene relevancia por su asociación con inestabilidad eléctrica ventricular, pudiéndose presentar arritmias ventriculares polimórficas en "puntas torcidas". Los síntomas acompañantes de estas arritmias son el síncope, convulsiones o la muerte súbita. Se puede clasificar en síndrome de QT prolongado congénito, el cual se hereda o lo adquiere el individuo de manera esporádica y el síndrome adquirido que se puede presentar asociado a fármacos u otras situaciones clínicas. Presentamos el caso de una mujer de 41 años de edad que desarrolló cambios típicos de síndrome de QT prolongado por isquemia miocárdica y hacemos una breve revisión.