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扭转型室性心动过速(Torsade de P-ointes,TDP)病因谱较广。近年随着各种抗心律失常药物的广泛应用,其诱发TDP 的报告日渐增多。TDP 的定义和发生机理:TDP 由Dessertenne 1966年首先命名,以发作时QRS 波群形态多变、主波方向每隔5～20个搏动围绕基线倒转一次为特征,易发展为心室颤动。QRS≥0.12″,频率150～300次/分,
Torsade de P-ointes (TDP) causes a wide spectrum of causes. In recent years, with a variety of anti-arrhythmic drugs widely used, the report of its induced TDP increasing. TDP definition and mechanism of occurrence: TDP by Dessertenne first named in 1966 to the QRS complex swings in the onset of attack, the main wave direction every 5 to 20 beats around the baseline once again characterized by the pulse, easy to develop ventricular fibrillation. QRS ≥ 0.12 ", the frequency of 150 to 300 beats / min,