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, 64 (3), 229-33

Comparison of Meperidine and Nefopam for Prevention of Shivering During Spinal Anesthesia


Comparison of Meperidine and Nefopam for Prevention of Shivering During Spinal Anesthesia

Yeon A Kim et al. Korean J Anesthesiol.


Background: Shivering is a frequent event during spinal anesthesia and meperidine is a well-known effective drug for prevention and treatment of shivering. Nefopam is a non-opiate analgesic and also known to have an anti-shivering effect. We compared nefopam with meperidine for efficacy of prevention of shivering during spinal anesthesia.

Methods: Sixty five patients, American Society of Anesthesiologists physical status I or II, aged 20-65 years, scheduled for elective orthopedic surgery under spinal anesthesia were investigated. Patients were randomly divided into two groups, meperidine (Group M, n = 33) and nefopam (Group N, n = 32) groups. Group M and N received meperidine 0.4 mg/kg or nefopam 0.15 mg/kg, respectively, in 100 ml of isotonic saline intravenously. All drugs were infused for 15 minutes by a blinded investigator before spinal anesthesia. Blood pressures, heart rates, body temperatures and side effects were checked before and at 15, 30, and 60 minutes after spinal anesthesia.

Results: The incidences and scores of shivering were similar between the two groups. The mean arterial pressures in Group N were maintained higher than in Group M at 15, 30, and 60 minutes after spinal anesthesia. The injection pain was checked in Group N only and its incidence was 15.6%.

Conclusions: We conclude that nefopam can be a good substitute for meperidine for prevention of shivering during spinal anesthesia with more stable hemodynamics, if injection pain is effectively controlled.

Keywords: Meperidine; Nefopam; Shivering; Spinal anesthesia.


Fig. 1
Fig. 1
Change of hemodynamics and body temperature. (A) mean arterial pressure, (B) heart rate, and (C) tympanic membrane temperature. Group M: meperidine group, Group N: nafopam group. *P < 0.05, compared to Group M at the same times. P < 0.05, compared to the baseline value of the same group.

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