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The goals of neuro-anaesthesia are to ensure stable perioperative cerebral haemodynamics and avoid a sudden rise in intracranial pressure (ICP). The intense surgical stimuli associated with pin insertion, scalp incision and craniotomy frequently cause sympathetic activation which results in marked changes in systemic arterial pressure and cerebral blood flow1. These cerebrovascular responses if not adequately obtunded may result in elevated ICP and reduction in cerebral perfusion pressure leading to cerebral ischemia, especially in patients with the intracranial space-occupying lesion (SOL) with impaired autoregulation and compromised cerebral compliance1,2.

international journal of current research and review

Ropivacaine vs Levobupivacaine Scalp BlockIntraoperative Hemodynamic Stability and Requirement of Additional Analgesia in Supratentorial Craniotomy, a Comparative Study