conclusions the results of this study showed that ketamine, doxapram and meperidine are equally effective in the prevention of postoperative shivering. background postanaesthetic shivering is one of the most common unpleasant complications in patients. objectives the aim of this study was to compare the efficacy of doxapram, ketamine and meperidine in prevention of shivering after anaesthesia. ...

The concentrations of norpethidine in blood were determined in patients recovering from abdominal surgery following both multiple i.m. injections (i.m. group) and the i.v. infusion (i.v. group) of pethidine. The rate of administration of pethidine averaged 25 mg h-1 in both groups. Concentrations of norpethidine were generally small compared with those of pethidine although the ratio of norpeth...

OBJECTIVE Paravertebral block (PVB) is an effective alternative to epidural analgesia in the management of post-thoracotomy pain. Rib spreading (RS) is an important noxious stimulus considered a major cause of post-thoracotomy pain. Our hypothesis was that a bolus of ropivacaine 0.2% through a paravertebral catheter (PVC) inserted before RS could decrease pain during the first 72 postoperative ...

Patients with chronic pain of sufficient severity to require the use of narcotic analgesics served asthe subjects for the experiments. They were not told what drug' they were receiving or what was expected of them. All subjects were given saline, meperidine, and two ratios of meperidine and levaUorphan in successive trials; thus each patient served as his own control and as a basis for comparis...

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...