Manipulation of intracranial arteries is associated with consistent vessel diameter reductions during microsurgical aneurysm clipping

Abstract

To report the rate of diameter reduction of intracranial arteries during aneurysm clipping. Also, in the subset of ruptured aneurysm (RA) the relationship between diameter reduction and symptomatic vasospasm (SVS) Is investigated. A retrospective dataset containing demographics, aneurysm characteristics, vessel dynamics and SVS in adults with surgically clipped intracranial aneurysms was analyzed. The vessel diameters were recorded intraoperatively, both pre-and postclip-ping. SVS was assessed by transcranial doppler ultrasound or CT-angiogram in the presence of neurological deterioration. Backward multivariable logistic regression models were applied to define variables associated with SVS.