The effect of oral tizanidine on postoperative pain relief after elective laparoscopic cholecystectomy

Reihanak Talakoub, Saeed Abbasi, Elham Maghami, Sayyed Morteza Heidari Tabaei Zavareh, Reihanak Talakoub, Saeed Abbasi, Elham Maghami, Sayyed Morteza Heidari Tabaei Zavareh

Abstract

Background: Cholecystectomy is considered as the most important and relatively common postoperative pain control often begins in recovery room by using systemic narcotics that may have some side effects. The aim of this study is to evaluate the effect of premedication with oral tizanidine on pain relief after elective laparoscopic cholecystectomy.

Materials and methods: In this double-blinded clinical trial, 70 adults of American Society of Anesthesiologist physiologic state 1 and 2 scheduled for elective laparoscopic cholecystectomy under general anesthesia were studied and randomly divided in two study and control groups. Ninety minutes before the induction of anesthesia, patients received either 4 mg tizanidine (study group) orally in 50cc or the same volume of plain water as a placebo (control group). Then, the vital signs, pain intensity, duration of stay in recovery, and the analgesic consumption were measured and then compared in both groups during 24 h postoperatively.

Results: There was no significant difference in patient characteristics, with respect to age, weight, gender, and duration of anesthesia and surgery between the groups (P > 0.05). The pain intensity, need for analgesic drugs (34.57 ± 8.88 mg vs. 101.86 ± 5.08 mg), and the duration of stay in recovery room (67.43 ± 1.59 min vs. 79.57 ± 5.48 min) were significantly lower in tizanidine group than that of the control group.

Conclusion: Oral administration of 4 mg tizanidine before laparoscopic cholecystectomy reduces postoperative pain, opioid consumption, and consequence of the duration of stay in recovery room without any complication.

Keywords: Analgesia; laparoscopic cholecystectomy; postoperative pain; tizanidine.

Figures

Figure 1
Figure 1
The comparison of mean arterial pressure during the operation, recovery room, and ward with the base
Figure 2
Figure 2
The average of visual analog scale after the operation in the tizanidine and control groups

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Source: PubMed

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