BACKGROUND Thermoregulatory control is based on both skin and core temperatures. Skin temperature contributes approximately 20% to control of vasoconstriction and shivering in unanesthetized humans. However, this value has been used to arithmetically compensate for the cutaneous contribution to thermoregulatory control during anesthesia--although there was little basis for assuming that the rel...

introduction: postoperative shivering is one of the common problems following general anesthesia and may lead to multiple complications. this study aimed to compare the impact of ketamine and pethidine on postoperative shivering.  methods: in a randomized clinical trial, one hundred and thirty-five patients undergoing elective abdominal surgery were recruited for the study. the patients were ra...

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...