title: Cardio-respiratory changes during pneumoencephalography.
abstract: Carbon-respiratory changes associated with changes in posture and injection of intrathecal oxygen were studied in fifeen patients undergoing pneumoencephalography in a Phillips isocentric chair, while breathing spontaneously and anaesthetised with halothane in oxygen. Haemodynamic changes associated with changes in posture were of a minor nature. A rise in PaCO2 occurred in the prone position in two obese patients. There were significant rises in blood pressure following injection of more than 5 ml of oxygen as a bolus into the subarachnoid space.
mesh_terms: D000328:Adult; D000768:Anesthesia, General; D001794:Blood Pressure; D001835:Body Weight; D002245:Carbon Dioxide / Q000097:blood; D002496:Central Venous Pressure; D006221:Halothane; D006321:Heart / Q000502:physiology*; D006801:Humans; D010100:Oxygen / Q000097:blood; D010313:Partial Pressure; D011011:Pneumoencephalography / Q000295:instrumentation; D011187:Posture; D011674:Pulse; D012119:Respiration
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen; D006221:Halothane