International journal of obstetric anesthesia
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Int J Obstet Anesth · Aug 2020
A mechanistic study of the tremor associated with epidural anaesthesia for intrapartum caesarean delivery.
It is not known if the tremor associated with an epidural top-up dose for intrapartum caesarean delivery is thermoregulatory shivering. A tremor is only shivering if it has the same frequency profile as cold stress-induced shivering. Thermoregulatory shivering is a response to a reduction in actual body temperature, whereas non-thermoregulatory shivering may be triggered by a reduction in sensed body temperature. This mechanistic study aimed to compare: 1. the frequency profiles of epidural top-up tremor and cold stress-induced shivering; and 2. body temperature (actual and sensed) before epidural top-up and at the onset of tremor. ⋯ These results suggest that epidural top-up tremor is a form of non-thermoregulatory shivering triggered by a reduction in sensed body temperature.
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Int J Obstet Anesth · Aug 2020
Letter Case ReportsRadiofrequency treatment of a pelvic schwannoma in pregnancy.