[Association between early stenosis and temporary clipping in treated cerebral aneurysms]

Postoperative vascular stenosis following the use of temporary clips in cerebral aneurysms represents a current challenge due to the limited available evidence. This study evaluated whether temporary clipping causes significant image-detected stenosis and whether associated factors contribute to its occurrence.

To determine the presence of early postoperative vascular stenosis related to the use of temporary clips in patients undergoing neurosurgical treatment for cerebral aneurysms.

A cross-sectional analytical study was conducted in 43 patients surgically treated for cerebral aneurysms. Clinical and surgical variables were recorded, comparing pre- and postoperative vascular calibers using a paired Student's t-test. The frequency of residual aneurysm and associations with clip type, clinical factors, and clipping time were analyzed.

A significant reduction in postoperative vascular caliber was identified (mean 5.2%, p = 0.007). No statistically significant associations were found between stenosis and the evaluated factors. The incidence of residual aneurysm was low, and clipping times remained within safe parameters.

Temporary clipping proved to be a safe and effective procedure, with a low rate of significant stenosis and no relationship with clinical or technical variables. Continued imaging follow-up and multicenter studies are recommended to confirm these findings.