Inadvertent postoperative hypothermia is common among patients in the postanesthesia care unit (PACU). Shivering traditionally is attributed to hypothermia, but it is not always thermoregulatory. The exact impact of hypothermia and shivering on standard PACU monitoring parameters of patients has not been sufficiently studied. The present study included 170 orthopedic surgical patients. On PACU ...

BACKGROUND Shivering is one of the common problems in spinal anesthesia. The objective of the present study was to evaluate the effect of intrathecal fentanyl (25 µg) on incidence and severity of intraoperative and postoperative shivering. METHODS A double-blind randomized controlled study was conducted in eighty healthy women (ASA Physical status I) scheduled for elective cesarean section un...

We tested the hypothesis that cooling the extradural space may provoke shivering, by giving three 80-ml extradural injections of warm (39.8 +/- 1.2 degrees C) or cold (17 +/- 2.2 degrees C) saline to four healthy volunteers, whilst recording central temperature and electromyographic activity from four muscles. The first injection (always cold) did not induce shivering in any of the subjects. Th...

Shivering related to spinal and epidural anesthesia is distressing to parturient women as it may cause cardiovascular and metabolic disturbances. Shivering increases cardiac output and causes tachycardia; also, hypothermia-induced shivering increases total body oxygen consumption and could cause hypoxemia. These effects may place mothers and the fetuses at the greatest risk during delivery. The...

BACKGROUND The optimum dose of dexmedetomidine for shivering control with the least hemodynamic derangements is still under research. OBJECTIVE To compare the efficacy, hemodynamic and side effects of dexmedetomidine in 3 different doses with those of meperidine for the treatment of shivering in patients undergoing spinal anesthesia for minor elective lower abdominal surgery. STUDY DESIGN P...

conclusions administration of intravenous ketamine at a dosage of 0.5 mg/kg immediately after anesthesia induction had a preventive effect on shivering intensity without hemodynamic alterations in children undergoing general anesthesia for tonsillectomy. results with regards to the demographic and surgical data, no significant differences between the two study groups were observed (p ≥ 0.05). s...

BACKGROUND Shivering during spinal anesthesia is a frequent complication and is induced by the core-to-peripheral redistribution of heat. Nefopam has minimal side effects and prevents shivering by reducing the shivering threshold. Electroacupuncture is known to prevent shivering by preserving the core body temperature. We compared the efficacies of electroacupuncture and nefopam for the prevent...

BACKGROUND Postoperative shivering is very common and followed by many problems such as increasing oxygen consumption, blood pressure, intracranial and intraocular pressure, and postoperative pain. Therefore, prevention of shivering is important, especially in elderly and ischemic heart disease patients. The goal of this study was to compare the effect of pethidine (meperidine), dexamethasone, ...