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Showing 4 results for Shivering
Comparison of effects of Fentanyl and Pethidin on postanaesthetic shivering
B Jahangiry ,
Volume 57, Issue 2 (5-1999)
Abstract
We have compared the effects of fentanyl and pethidine in the treatment of postanaesthetic shivering. Fifty patients who were shivering after routine abdominal surgery were allocated randomly to receive fentanyl 75 µg and pethidine 25 mg. After 10 min, 23 patients in pethidine group and 22 patients in the fentanyl group had stopped shivering which was not significantly different in the two groups. We conclude that fentanyl 75 µg was effective in the treatment of postanaesthetic shivering.
Morphine, Pethidine and Fentanyl in post-operative shivering control: a randomized clinical trial
Hoseinkhan Z, Behzadi M,
Volume 64, Issue 12 (11-2006)
Abstract
Background: Postoperative shivering is a common postoperative complication. The aim of this study was to compare the effects of morphine, pethidine and fentanyl in postoperative shivering control.
Methods: In this prospective, randomized, placebo-controlled, double-blinded, clinical trial, we enrolled 72 adults scheduled for elective surgery under general anesthesia at Imam Khomeini Hospital in 2003. All the patients were anesthetized in the same manner. After transferring the patients to the post-anesthesia care unit, shivering was noted and, in patients with a shivering score of one or more, morphine (2.5 mg), pethidine (25 mg), fentanyl (25 µg) or normal saline (all with a volume of 10 ml) was randomly administered intravenously by a two-minute injection. A second shivering score was recorded 10 minutes later.
Results: Pethidine and fentanyl were significantly more effective than normal saline, but there was no significant difference between normal saline and morphine groups. Pethidine was more effective than two other drugs in shivering control.
Conclusions: Pethidine was significantly more effective than two other drugs. Fentanyl decreases postoperative shivering less effectively than pethidine, but morphine had no effect on postoperative shivering with an effect comparable to normal saline.
Investigating the effect of ketamine on the prevention of shivering after spinal anesthesia in lower limb orthopedic surgeries: a single-blind randomized clinical trial study
Kazem Kazemnejad, Parvaneh Ebrahimzadeh, Seyedeh Roya Mosavi, Mansour Deylami ,
Volume 82, Issue 6 (9-2024)
Abstract
Background: Shivering is one of the side effects of anesthesia that occurs both in general anesthesia and regional anesthesia. Ketamine, as an N-methyldiaspartate receptor antagonist, may prevent shivering after spinal anesthesia by reducing central heat distribution to the environment. Therefore, the purpose of this study is to investigate the effect of ketamine in preventing tremors after spinal anesthesia in lower limb orthopedic surgeries.
Methods: This randomized, single-blind clinical trial study was conducted on 60 patients who were candidates for orthopedic surgery of the lower limb referred to 5 Azar Hospital in Gorgan. Patients were randomly divided into two equal groups of ketamine (0.25 mg/kg) and control (placebo). The data collection tool includes a checklist containing information; Age, gender, mean arterial pressure, percentage of arterial oxygen saturation, heart rate, tremors and hallucinations. Data analysis was performed using descriptive statistics and inferential statistical tests at a significance level of P<0.05.
Results: There was no statistically significant difference in gender between the control and intervention groups. The mean age of the study subjects in the control group was 36.13±12.53 and in the intervention group was 40.30±11.96. There was no statistically significant difference in age between the control and intervention groups. There is no statistically significant difference in mean arterial pressure (MAP) between the control and intervention groups. The incidence of shivering after spinal anesthesia was 13.33% in patients receiving prophylactic ketamine and 40% in patients receiving placebo. The incidence of hallucinations in the ketamine group was 26.67%. The rate of nausea and vomiting was similar in both groups. According to this study, between the two groups in terms of hemodynamic parameters, including mean arterial pressure, heart rate, percentage of arterial oxygen saturation; There was no significant difference.
Conclusion: The incidence of shivering in spinal anesthesia in the preventive use of ketamine has been more effective than placebo. Considering the effectiveness of ketamine in reducing the incidence of shivering, its use as a prevention is suggested to reduce the incidence of shivering.

The incidence of shivering and nausea with the use of bupivacaine versus bupivacaine-sufentanil combination in women undergoing elective cesarean section under spinal anesthesia
Reza Sahraei, Anahita Haghjoo , Hasan Zabetian, Mansour Deylami, Rahil Haghjoo, Fatemeh Khadempir, Navid Kalani ,
Volume 83, Issue 1 (4-2025)
Abstract
Background: Spinal anesthesia is a common method for elective cesarean sections; however, complications such as shivering and nausea may affect postoperative recovery quality. Bupivacaine is a standard drug used in this procedure, but its combination with opioids like sufentanil may have beneficial effects in reducing these complications. This study aimed to compare the incidence of shivering and nausea in women undergoing elective cesarean section who received either bupivacaine alone or a bupivacaine-sufentanil combination.
Methods: The present study was a double-blind randomized clinical trial conducted over a 6-month period from April 2021 to October 2021 on 30 patients undergoing elective cesarean section with spinal anesthesia at Motahari Hospital in Jahrom city. Patients were randomly assigned using a random number table into two groups: bupivacaine alone and bupivacaine-sufentanil combination. The frequency of nausea, vomiting, and shivering was recorded at different time points: before spinal anesthesia, after spinal anesthesia, 3 minutes before delivery, immediately after delivery, at 15, 30, and 45 minutes, upon recovery room admission, and upon discharge from recovery. The data analysis was performed using descriptive statistics indicators (frequency, percentage, mean, and standard deviation) and inferential statistical tests (t-test, Mann-Whitney, chi-square and Friedman) using SPSS software version 21. A significance level of p < 0.05 was considered.
Results: In the bupivacaine-sufentanil group, the highest frequency of shivering occurred at 30 minutes post-spinal anesthesia (20%) and upon recovery room admission (26.7%). In the bupivacaine-alone group, the highest frequency was observed upon recovery room admission (33.3%) and at discharge from recovery (26.7%). The highest nausea frequency was 33.3% in the bupivacaine-sufentanil group and 40% in the bupivacaine group at 3 minutes before delivery. However, no statistically significant difference was found between the two groups at different time points.
Conclusion: The present study showed that adding low-dose sufentanil to bupivacaine in spinal anesthesia protocols, while potentially having minor clinical effects on certain complications, did not lead to a significant difference in the incidence of shivering and nausea. Therefore, for more precise clinical decision-making regarding drug combinations in regional anesthesia, further studies with larger sample sizes and different drug dosages are recommended.

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