conclusions the results of this study showed that ketamine and pethidine are both equally effective in the reduction of postoperative shivering. results there was no statistically significant difference between the shivering intensity in both groups. only regarding the shivering in the first minute after entering the recovery room, there was an obvious difference between ketamine and pethidine ...

1. Hypothermia to a temperature of 30 degrees C was induced in both shivering and non-shivering groups of dogs. 2. There was a sustained increase in oxygen consumption in the dogs allowed to shiver and this was up to 300% greater than the oxygen consumption in the relaxed dogs. 3. The increased tissue requirement for oxygen was met both by increased cardiac output and increased oxygen extractio...

BACKGROUND Shivering is a frequent event during the perioperative period. We performed a prospective, randomized, double-blind study to determine whether intrathecal meperidine (0.2 mg/kg) decreases the incidence and intensity of shivering after spinal anesthesia for transurethral operations. METHODS Fifty patients scheduled for elective transurethral resection operations under spinal anesthe...

BACKGROUND Regional anesthesia is known to significantly impair thermoregulation and predispose patients to hypothermia. We hypothesized that the addition of an intrathecal injection of magnesium sulfate (MgSO4) to bupivacaine would improve perioperative shivering in female patients undergoing elective caesarean section. METHODS In a block-randomized, double-blinded, controlled trial 72 patie...

BACKGROUND Neuraxial anesthesia reduces the shivering threshold approximately 0.6 degrees C. This effect might be mediated by an apparent (as opposed to actual) increase in lower body temperature. Accordingly, sufficient lower body warming should result in thermoregulatory inhibition comparable to that exerted by epidural anesthesia. We tested the hypothesis that increasing leg skin temperature...

BACKGROUND Postoperative shivering is a major problem in children undergoing general anesthesia. OBJECTIVES The aim of the present study was to investigate the role of low-dose intravenous ketamine for prevention of shivering after induction of general anesthesia in children who had undergone tonsillectomy. PATIENTS AND METHODS This was a randomized, double-blinded, placebo-controlled trial...

from general and regional anesthesia. the incidence of this complication is reported to be 40-70% among patients. pas occurrence depends on various factors such as age, gender and drugs used in anesthesia and surgery time. granisetron is a serotonin 5ht3 receptor antagonist. beneficial effects of such drugs have been shown in a limited number of studies. in this study, preventive effects of gra...

aim and background:   adding new supplements when performing spinal anesthesia can increase the duration of analgesia. the aim of the present study has been to compare intrathecal midazolam and tramadol with the conventional method for postoperative pain and shivering control after elective caesarean section. methods and materials:   in this double-blind clinical trial, 210 asa class i,ii women...

BACKGROUND Postoperative shivering is one of the common problems following general anesthesia and may lead to multiple complications. The aim of this study was to examine the preventive effects of Ondansetron and Meperidine on postoperative shivering. METHODS This randomized placebo-controlled double blind clinical trial included 90 patients scheduled for elective gynecologic operations, rand...