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 ...

mayo.edu Congenital long QT syndrome (LQTS ... Owing to multiple variables interacting at any given time, patients may have different QT intervals during subsequent ECG examinations. The full extent ...

ECG markers and their association with stroke ... CAST trials showed increased sudden death with few antiarrhythmics QT interval prolongation 4–6% 1.5-fold increase Myocardial infarction ...

left axis deviation and conduction delays and findings suggestive or diagnostic of primary electrical diseases such as long QT syndrome and Wolff-Parkinson-White syndrome. The evaluation of abnormal ...

QRS complex interval prolongation (including specific conduction block abnormalities and if of ventricular origin, when known); ST-segment elevation or depression (including alternans); QT ...