Deep anaesthesia reduces postoperative analgesic requirements after major urological procedures.

Background And Objective: There is evidence from previous studies that deeper anaesthetic levels reduce postoperative pain along with analgesic requirements. The aim of this study was to confirm this observation during major urological procedures under sevoflurane anaesthesia.

Methods: Seventy ASA I or II patients undergoing radical prostatectomy or nephrectomy were randomly allocated into two groups: the L-BIS group with BIS (bispectral index scale) values kept within a range of 20-30 and the H-BIS group with values within the range of 50-60.

Changes in serum sodium concentration after transurethral procedures.

The aim of this study is to evaluate the changes in serum sodium concentration and the degree of correlation with factors such as the amount of intravenous fluid intake, the kind and the amount of irrigating fluids and the duration of the procedure. In this framework, 98 male patients who underwent transurethral procedure were studied and the correlation between the magnitude of hyponatraemia and the above-mentioned parameters was evaluated. All procedures were performed under spinal anesthesia and a solution of either manitol-sorbitol or sterilized water was used as irrigation fluid.

Improvement of pain treatment after major abdominal surgery by intravenous S+-ketamine.

Unlabelled: The use of intraoperative racemic ketamine for pain prevention after abdominal surgery is controversial. We compared one preincisional i.v.

Preincisional local infiltration of levobupivacaine vs ropivacaine for pain control after laparoscopic cholecystectomy.

Background: Postoperative pain is less intense after laparoscopic surgery than after open surgery. However, patients may gain additional benefit from a preincisional local infiltration of anesthetic. The aim of this study was to compare the analgesic efficacy of two local anesthetics, ropivacaine and levobupivacaine, for tissue infiltration as a means of improving postoperative pain control after laparoscopic cholecystectomy.

Anaesthesia and the QT interval in humans: effects of halothane and isoflurane in premedicated children.

The effects of halothane and isoflurane followed by subsequent administration of vecuronium on the QT interval have been investigated during the induction of anaesthesia. Fifty-eight children, ASA I, without cardiovascular and electrolyte abnormalities and not receiving any medication were studied. Anaesthesia was induced with either halothane (n = 28) or isoflurane (n = 30), and was maintained until the end of the study with end-tidal concentrations of 2.