• Chin. Med. Sci. J. · Mar 2003

    Randomized Controlled Trial Comparative Study Clinical Trial

    Clinical study of patient-controlled epidural analgesia with tetracaine hydrochloride after pulmonary lobectomy.

    • Xiangyang Guo, Yong Li, Tiehu Ye, Hongzhi Ren, Yuguang Huang, and Ailun Luo.
    • Department of Anesthesiology, Peking Union Medical College Hospital, Beijing 100730.
    • Chin. Med. Sci. J. 2003 Mar 1;18(1):54-8.

    ObjectiveTo investigate the efficacy and safety of tetracaine hydrochloride in patient-controlled epidural analgesia (PCEA) after pulmonary lobectomy.MethodsForty-three patients scheduled for elective pulmonary lobectomy under general anesthesia were randomly allocated into either tetracaine group (22 patients) or ropivacaine group (21 patients). In the tetracaine group, 0.15% tetracaine was used for postoperative PCEA, while 0.3% ropivacaine was used in the ropivacaine group. The duration of postoperative analgesia was 48 h. The PCEA included a bolus of 6 ml with a lockout time of 1 h. Postoperative pain score was measured by visa analogue scale (VAS). Forced expired volume at the 1st second (FEV1.0), forced vital capacity (FVC), FEV1.0/FVC and peak expired flow (PEF) were measured preoperatively and daily after surgery. Hemodynamics were monitored and recorded before and after each administration of local anesthetics during the period of the study.ResultsVAS scores in both groups decreased significantly after a bolus injection of local anesthetics. There was no significant difference between the two groups in VAS either before or after the administration of PCEA. On the 1st and 2nd days after the operation, pulmonary function was reduced in both groups. However, there were no significant differences between the percentage of the changes of FEV1.0, FEV1.0/FVC and PEF in the two groups. There were also significant differences between the percentage of the changes of heart rate, mean arterial blood pressure and SpO2 after administration of local anesthetics. There was no significant difference in overall satisfaction with pain relief.ConclusionsThe analgesic effect of 0.15% tetracaine is similar to that of 0.3% ropivacaine used in patient-controlled epidural analgesia after thoracotomy. No serious side effects were observed.

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