Journal of Arak University of Medical Sciences

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Showing 4 results for Shivering

Effects of Intravenous Fluids Temperature on Perioperative Hemodynamic Situation, Postoperative Shivering and Recovery in Orthopedic Surgeries

Hadi Hasankhani , Eisa Mohammadi, Farhad Moazami , Manijheh Mokhtari, Mohammad Mahdi Naghizadeh,
Volume 6, Issue 4 (12-2003)

Abstract

Introduction: Postoperative hypothermia is physiologically stressful by elevating blood pressure, heart rate and plasma catecholamine concentration. This study conducted to evaluate the effects of intravenous fluids temperature on perioperative hemodynamic situation.
Materials and Methods: This was a randomized clinical trial study Perioperative pulse rate, blood pressure, intraoperative esophageal and skin temperature were measured in 60 volunteer patients undergoing orthopedic surgeries subjects randomly divided into two groups according to intraoperative IV fluids management. In 30 patients (hypothermia group) all IV fluids infused were at room temperature. In the other 30 patients (normothermia group) all IV fluids were warmed using and dry IV fluid warmer.
Results: The core and skin temperature of hypothermia and normothermia group decreased significantly from induction of anesthesia toward end of surgery but its reduction was more in hypothermia group (P<0.005). Postoperative mean arterial blood pressure increased significantly more in hypothermia group versus normothermia group (P<0.005). Shivering was observed in 21 of 30 hypothermia and 11 of 30 normothermia group (p<0.005) and recovery time was significantly lower in normothermia group (36±5 vs. 26±3 min, P<0.005).
Conclusion: Infusion of warm fluids helps to reduce the variation of postoperative mean arterial blood pressure, core and skin temperature, occurrence of shivering and recovery time.

Comparison effect of different doses of Ketamine with Pethedine in reducing postoperative shivering after cesarean section

Shirin Pazoki, Afsaneh Noroozi, Amir Homayoun Shadman,
Volume 12, Issue 2 (9-2009)

Abstract

Background: Postoperative shivering is a common problem with multiple complications. This study was compared effect of low doses of Ketamine with Pethidine for controlling postoperative shivering. Methods and Materials: This clinical trial was done on 189 elective cesarean section with ASA class I or II who had postoperative shivering. Patients with grade 2 or higher were divided in three groups and were injected 0.3mg/kg Ketamine and 0.5mg/kg Pethidine intravenously. In 5th and 10th minutes after injection, they were investigated for shivering intensity. Results: After 5 minute of injection drugs rate and intensity of shivering in Pethedine group was less than ketamine group. Ketamine with 0.5 mg/kg was more effective than 0.3mg/kg dose of it and Ketamine(p=0.041). In group with 0.5mg/kg dose of Ketamine, rate and intensity of postoperative shivering was more reduce than group with 0.3mg/kg of it in recovery(p=0/007). In Pethedine group rate and intersity of shivering was more reduce then 0.5mg/kg dose of Ketamine(p<0/001). This demonstrated that Pethedine is more effective than Ketamine. Conclusion: Although 0.5mg/kg dose of Ketamine has considerable effect on control of shivering but Pethedine is still a better choice for this side effect.

Comparing the Efficacy of Different Classes of Drugs for the Prevention of Shivering After General Anesthesia

Hesamaldin Modir, Afsaneh Norouzi, Shirin Pazoki,
Volume 16, Issue 3 (6-2013)

Abstract

Background: Post-anesthetic shivering is the most common cause of patient discomfort during recovery with a prevalence of 5 to 65%. Post-anesthetic shivering can increase pain, oxygen consumption, and cardiac output. The aim of this study was to compare the efficacy of various classes of drugs for preventing post-anesthetic shivering.

Materials and Methods: In this double-blind clinical trial, patients undergoing elective laparotomy were randomly divided into six groups, 40 each. The patients, respectively, received hydrocortisone, ketamine, tramadol, magnesium sulfate, pethidine, and normal saline. All patients were observed for body temperature and shivering for 20 minutes after arrival to recovery room.

Results: Seventy patients in the pethidine group did not have shivering upon arrival to recovery room which was significantly higher than other groups (&chi2=0.00002). Also, the patients in the pethidine group did not shiver 10 and 20 minutes after arrival to recovery room that was significantly lower than other groups.

Conclusion: According to the results, it can be concluded that pethidine is more effective than other drugs in prevention of post-anesthetic shivering.

A Comparative Study on the Effectiveness and Onset of Action of Ondansetron and Meperidine in Post-Anesthesia Shivering Treatment

Mohammadreza Ghodraty, Faranak Rokhtabnak, Alireza Kholdebarin, Alireza Pournajafian,
Volume 23, Issue 2 (5-2020)

Abstract

Background and Aim: Postoperative shivering is a common complication after recovering from anesthesia, and due to its subsequent side effects, its prevention and treatment is of special importance for anesthetists. In this study, the efficacy and onset of action of meperidine (which is a potential cause of hemodynamic and respiratory complications) in treatment of post-anesthesia shivering are compared with those of ondansetron.
Methods & Materials: In this clinical trial study, patients with post-anesthetic shivering during recovery were randomly divided into two groups of meperidine (n=27) and ondansetron (n=29). Their shivering scores were recorded every minute for up to 10 minutes. After this time, if patients did not improve, meperidine was used in both groups to treat shivering.
Ethical Considerations The study obtained its ethical approval from the Research Ethics Committee of Iran University of Medical Sciences and has been registered in Iranian Registry of Clinical Trials (IRCT201109224969N3).
Results: The number of patients completely treated at 10 minutes was higher in the meperidine group (P= 0.05), and the decrease in mean shivering score occurred faster in meperidine group (P= 0.047)
Conclusion: Although ondansetron has been shown to be effective in treatment of postoperative shivering, the effectiveness and onset of action of meperidine was clearly better.

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