目的：观察静脉应用地尔硫芏卓控制老年术后快速心律失常的疗效及其安全性。

Objective:To observed the efficacy and safety of intravenous Diltiazem in treatment of rapid ventricular arrhythmia in postoperative elderly patients.

结论：该法具有所需仪器简单、测定快速、准确等特点，可作为盐酸地尔硫芏卓的质量控制方法。

CONCLUSIONS This method has such advantages as simple equipment, quick procedure and accurate results. It is reliable for the quality control of diltiazem hydrochloride.

结论：该法具有所需仪器简单、测定快速、准确等特点，可作为盐酸地尔硫芏卓的质量控制方法。

CONCLUSIONS This method has such advantages as simple equipment, quick procedure and accurate results. It is reliable for the quality control of diltiazem hydrochloride.