LQTS in a patient is detected by comparing 16, 24, 30 a collected set of ECG data from the patient to a plurality of databases 18, 26, 32 of collected ECG data. The plurality of databases 18, 26, 32 will include a database containing previous ECGs 18 from the patient, a known acquired LQTS characteristics database 26, and a known genetic LQTS characteristics database 32. Comparing the patient's ECG to these databases will facilitate the detection of such occurrences as changes in QT interval from successive ECG's, changes in T-wave morphology, changes in U-wave morphology and can match known genetic patterns of LQTS. The system is sensitive to patient gender and ethnicity, as these factors have been shown to effect LQTS, and is furthermore capable of matching a QT duration to a database of drug effects. The system is also easily integrated into current ECG management systems and storage devices.
Serial comparison of ECGs for detection of long QT syndrome (LQTS)