Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Oct 1998
Randomized Controlled Trial Clinical TrialProphylactic antiemetic therapy with granisetron-dexamethasone combination in women undergoing breast surgery.
Dexamethasone decreases chemotherapy-induced emesis when added to an antiemetic regimen. This study was undertaken to evaluate the efficacy of granisetron-dexamethasone combination for the prevention of postoperative nausea and vomiting (PONV) in female patients undergoing general anaesthesia for breast surgery. ⋯ Prophylactic use of granisetron-dexamethasone combination is more effective than granisetron alone for the prevention of PONV after breast surgery.
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Acta Anaesthesiol Scand · Oct 1998
Case ReportsCombined spinal and epidural anesthesia for cesarean section in a parturient with moyamoya disease.
We present the case of a parturient with moyamoya disease admitted to the hospital for elective cesarean section. Combined spinal and epidural technique was chosen because it allows better analgesia than epidural anesthesia and more hemodynamic stability than either general or spinal anesthesia. Ropivacaine was the local anesthetic of choice for the epidural portion because of the wide sensory-motor dissociation, thus preserving adequate respiration in the case of a high block.
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Acta Anaesthesiol Scand · Oct 1998
Randomized Controlled Trial Clinical TrialGeneral anaesthesia for surgery can influence circulating melatonin during daylight hours.
Both melatonin and anaesthetics have been shown to affect sleep and behaviour. The effect of general anaesthesia on circulatory melatonin has not been reported, but anaesthetic-related alterations in hormone profiles are known. We hypothesize that differences in recovery from anaesthesia may be associated with differences in circulatory melatonin levels because of melatonin's sedative effect in humans. ⋯ Higher plasma levels of melatonin during the recovery period following isoflurane anaesthesia may, in part, explain increased sedation in these patients compared with patients who received propofol anaesthesia. However, the relationship between recovery from anaesthesia and plasma melatonin levels may not be simple and straightforward.
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Acta Anaesthesiol Scand · Oct 1998
Responses of respiratory drive and breathing pattern to inspiratory loading during nitrous oxide and isoflurane sedation.
Increased inspiratory resistance in combination with mild gas narcosis is common during recovery after a general anesthesia, but there are only few previous studies on inspiratory loading during subanesthetic gas narcosis. ⋯ It is concluded that the steady-state ventilatory responses to loading, consisting of increased P0.1 and decreased VT, are maintained during inhalation of subanesthetic doses of N2O (0.13-0.38 MAC) and isoflurane (0.09-0.26 MAC).