Jackman W M, Clark M, Friday K J, Aliot E M, Anderson J, Lazzara R
Med Clin North Am. 1984 Sep;68(5):1079-109. doi: 10.1016/s0025-7125(16)31087-2.
Marked prolongation of the electrocardiographic QT interval often is associated with a distinctive form of ventricular tachycardia characterized by the gradual oscillation around the baseline of the peaks of successive QRS complexes. This was named torsades de pointes, or "twisting of the points." This form of ventricular tachycardia tends to be rapid and self-terminating and often occurs in clusters, leading afflicted patients to present with recurrent dizziness and syncope. Ventricular fibrillation and sudden death are common.
心电图QT间期明显延长通常与一种特殊形式的室性心动过速相关，其特征为连续QRS波群的峰值围绕基线逐渐振荡。这被命名为尖端扭转型室速，即“点的扭转”。这种室性心动过速往往快速且自行终止，常呈簇状发作，导致患病患者反复出现头晕和晕厥。室颤和猝死很常见。
