QT interval prolongation and torsade de pointes

The Association of Prolonged QT Interval on Electrocardiography and Chronic Lead Exposure

“…17,18 Prolongation of QT interval was also reported to be an independent contributing factor of cardiovascular disease and predict death in apparently healthy individuals 19,20 and in patients with angina 21 or alcoholic liver disease. 22 Identifying factors that contribute to the development of prolonged QTc interval will have important clinical implication, especially for those who had cardiovascular diseases.…”

QT interval prolongation, torsade de pointes and renal disease

“…Torsade de pointes is a form of polymorphic ventricular tachycardia occurring in a setting of prolonged QT interval on surface electrocardiogram [1,2]. Several non-antiarrhythmic drugs including antibiotic and antipsychotic agents have been shown to prolong cardiac repolarization predisposing to torsade de pointes ventricular tachycardia.…”

Hyperkalaemic cardiac arrhythmia with pacemaker/implantable cardioverter–defibrillator action disturbance

“…Potassium abnormalities [1] may induce cardiac arrhythmias [1][2][3][4][5] and also pacemaker stimulus disturbances [6][7][8][9]. We present a case of a 71-year-old Italian man admitted to the Emergency Department with hyperkalemia and complaining of palpitations and dyspnea.…”