Prototype of a Portable Platform for ECG Monitoring and Diagnostic Applications

This paper describes the prototype for a portable system that records and analyses electrocardiography signals in real time. The purpose of the system is to monitor patients during normal activity to help physicians to diagnose the long QT syndrome and alerts the patient to prevent sudden death. The system consists of a recording system for three leads electrocardiography signals and an algorithm implemented on a board based on a low power microcontroller. The system has been tested in non-pathologic subjects showing accurate values for the heart rate and QTc factor. The algorithm has also been tested satisfactory with created signals simulating pathologic and non-pathologic cases. It was also tested with 10 patients from a standard database showing satisfactory results except for signals where any of the characteristic waves of the ECG is not present..