Long QT syndrome is a medical condition that causes abnormal electrical conduction in the heart. When graphed on an electrocardiogram (EKG or ECG) each heartbeat has ...

Ewa Moric-Janiszewska, Ph.D.; Grazyna Markiewicz-Loskot M.D. Ph.D.; Maria Loskot M.D.; Ludmila Weglarz; Andrzej Hollek M.Sc.; Leslaw Szydlowski M.D.

These include findings suggestive of cardiomyopathy such as T-wave inversion, ST depression, pathological Q-waves, left axis deviation and conduction delays and findings suggestive or diagnostic of ...

3 long QT syndrome, 2 hypertrophic cardiomyopathy, 1 ventricular arrhythmia, and 1 short QT syndrome. Abnormal history or physical findings led to the diagnosis in 14/23 (61%) disorders and an ...