Is nitrous oxide necessary for general anaesthesia?
The omitting of N2O from anaesthetic regimen has a substantial impact on patient comfort after surgery by reducing incidence of PONV and it does not have any justifiable indication of its use in General anaesthesia.
Of patients with migraine, 6.7% had bilateral transverse sinus stenosis; 67.8% of these patients had idiopathic intracranial hypertension without papilledema (IIHWOP). These results suggest that patients with migraine who present bilateral transverse sinus stenosis on cerebral MR venography should undergo lumbar puncture to exclude IIHWOP.