Jeeva Raj M V, Benson R
Postgrad Med J. 1975 Feb;51(592):65-8. doi: 10.1136/pgmj.51.592.65.
Fifty-nine (42%) of 140 schizophrenic patients taking phenothiazines were found to have abnormal electrocardiograms. The abnormalities included T wave changes, S-T depression, P-R and Q-T prolongation, persistent sinus tachycardia (110 or more/min) and right bundle branch block. In forty-eight (34%) of the fifty-nine patients, the ECG abnormalities disappeared after stopping the phenothiazine and reappeared on its resumption.
在140名服用吩噻嗪类药物的精神分裂症患者中，有59名（42%）被发现心电图异常。这些异常包括T波改变、S-T段压低、P-R和Q-T间期延长、持续性窦性心动过速（每分钟110次或以上）以及右束支传导阻滞。在这59名患者中的48名（34%）中，停用吩噻嗪类药物后心电图异常消失，恢复用药时又再次出现。
