A prospective study on the effects of early surgery on vasospasm after subarachnoid hemorrhage

摘要: Abstract BACKGROUND To test the hypothesis that early surgery prevents vasospasm, a prospective analysis used strictly selected cases of anterior communicating artery aneurysms with symmetric distribution subarachnoid hemorrhage. METHODS Seven patients underwent (9–29 hours after ictus) through standard pterional approach. Subarachnoid blood clots surrounding ipsilateral major cerebral arteries were meticulously irrigated and suctioned. Comparison was made between hemispheres surgical intervention those without, in terms incidence delayed ischemic neurologic deficits infarction on computed tomographic scans, degree angiographic flow (CBF). RESULTS The quantified by measuring alterations ratio diameters intracranial (C1, M1) to extracranial internal carotid (C5), did not differ significantly nonsurgical sides. mean CBF also comparable both sides chronic spasm phase (Day 6–9) as well postoperative period 1–3). A significant reduction observed during basal frontal lobe side. This seems correspond brain retraction. CONCLUSIONS results suggest effect clot removal may be offset negative aspect surgery, per se have little course vasospasm.