Acta anaesthesiologica Scandinavica
-
Acta Anaesthesiol Scand · Oct 1995
Comparative StudyPeripheral blood flow in the elderly during inhalational anaesthesia.
We investigated whether aging altered the peripheral vascular effects of inhaled anaesthetic agents. Forearm blood flow (FBF) was measured in 20 young (18-34 yrs) and 21 healthy elderly (60-79) patients receiving isoflurane or halothane with 66% nitrous oxide (N2O) in oxygen (O2). After etomidate 0.3 mg/kg and vecuronium 0.1 mg/kg, the trachea was intubated and controlled ventilation instituted with 66% N2O in O2. ⋯ We conclude that perfusion of forearm muscle and skin is maintained in the young but not in the elderly during anaesthesia with isoflurane/N2O. Perfusion of forearm muscle and skin decreases in both young and elderly patients during anaesthesia with halothane/N2O. The cardiovascular effects of isoflurane/N2O and halothane/N2O did not differ significantly in healthy elderly patients.
-
Acta Anaesthesiol Scand · Oct 1995
Hemodynamic changes due to Trendelenburg positioning and pneumoperitoneum during laparoscopic hysterectomy.
More prolonged gynecological laparoscopic operations are being performed in recent years, and a steeper head-down position is required. The early reports of hemodynamic changes during gynecologic laparoscopy are conflicting, and the effects of anesthesia, head-down tilt and pneumoperitoneum have not been clearly separated. Invasive hemodynamic monitoring was carried out in 20 female ASA Class I-II patients who underwent laparoscopic hysterectomy. ⋯ Anesthesia and the Trendelenburg position increased the CVP, PCWP and pulmonary arterial pressures and decreased cardiac output. Pneumoperitoneum increased these pressures further mostly in the beginning of the laparoscopy, and cardiac output decreased towards the end of the laparoscopy. The risk of systemic CO2-embolus was increased during laparoscopy.
-
Acta Anaesthesiol Scand · Oct 1995
Case ReportsRepetitive hearing loss following dural puncture treated with autologous epidural blood patch.
A case of repetitive hearing loss following an otherwise uncomplicated diagnostic dural puncture is presented. The patient developed severe postdural puncture headache (PDPH) and three episodes of pronounced vestibulocochlear disturbances within five weeks after only one dural puncture. On all three occasions the headache and the associated symptoms were treated with an autologous epidural blood patch (AEBP) resulting in the immediate disappearance of all the subjective complaints of postdural puncture headache and the normalization of an audiological test within minutes.