... Positioning 272 Complications of the Sitting Position 273 Central Nervous System Monitoring 276 Anaesthetic Management 277 Conclusion 278 References 278 Page 281SECTION 4— NEUROSURGICAL ... perinasal sinuses, the mouth and upper respiratory tract, carcinomas originating in these regions can readily invade the posterior fossa. In recent years, combined surgical approaches involving neurosurgery, ... avoid coughing at the time of intubation. Hypertension due to laryngoscopy can be obtunded using intravenous lignocaine, a short-acting β-blocker or opioid or a bolus of intravenous induction...