Utilização do filtro de Kalman para sinais de ECG em desfibriladores externos automáticos

Abstract

Cardiac arrest is one of the most common causes of death in the world. Among the people who can be saved from this condition, most are in Ventricular Fibrillation or Pulseless Ventricular Tachycardia. Electrical defibrillation is the simplest and most important therapy in the treatment of these patients. The Automatic External Defibrillator is the device that can be used by laypersons with a minimum of training to perform defibrillation, reducing the waiting time of the first pulse application, which directly influenciate the success rate of this therapy. This work describes a way of using the Extended Kalman Filter (FKE) to correct ECG signals used by an Automatic External Defibrillator in the decision making of the defibrillatory pulse application in patients, as well as a proposed Defibrillator model describing the aspects of its operation.