P-028 WEB colombian multicenter experience (WEB.COM) : clinical and radiological mid- term results in the treatment of intracranial aneurysms

Abstract

a new deficit significantly increased as a function of the magnitude of IONM change and type of complication (table 2). For procedures with changes associated with a perioperative complication (n=83), the rate of new neurologic deficit was 60% if the change remained unresolved (n=18/30). However, the rate and risk of new deficit was significantly decreased if a change was partially resolved (28.6%, n=6/21, OR=0.27), and was dramatically decreased if fully resolved (3.1%, n=1/ 32, OR=0.02) (figure 1). Conclusions IONM has excellent diagnostic accuracy during cerebral neuroendovascular procedures. Both the magnitude and putative cause of IONM change provide diagnostic and prognostic information. Perioperative complications are significantly less likely to result in postoperative dysfunction if there is a timely diagnosis and intervention that results in the resolution of IONM signal change.