Szybki i wolny częstoskurcz komorowy typu torsade de pointes - charakterystyka elektrokardiograficzna

Background: Clinical value of electrocardiographic features of torsade de pointes (TdP) has not yet been well established.Aim: To compare the mode of onset and ECG characteristics of slow (s-TdP) and fast (f-TdP) episodes of TdP.Methods: 54 episodes of TdP recorded in 6 patients (5 females, one male, mean age 64.4 years) with acquired long QT syndrome were analysed. Baseline rate of TdP (V-V), ventricular rate variability (VRV), coupling interval (CI) at the onset of TdP, prematurity index (PI) and the first cycle length (FCL) were compared between 31 s-TdP

Acquired long QT syndrome with torsade de pointes in a patient with primary hypothyroidism

Abstract: A case of 78 year-old woman with primary hypothyroidism and atrial fibrillation treated with sotalol, complicated with cardiac arrest due to ventricular fibrillation (VF) and torsade de pointes (TdP) is presented. The QT interval was prolonged to 660 msec. Episodes of polymorphic ventricular tachycardia and VF recurred. Lidocaine, tosylate bretylate and betabloker successfully eliminated VF but short-lasting episodes of TdP were still present. Increased doses of hormonal substitution with thyroid hormones successfully eliminated malignant ventricular arrhythmias and normalised QT interval to 430 msec