Objective and Background: Surgery of unruptured aneurysms is always a great challenge
to neurovascular surgeons because no postoperative neurological deficits should be
expected postoperatively as the patients are fully asymptomatic before the surgery.
Here, we present our experience with selective motor evoked potential (MEP) monitoring
of our patients in a 2-year time window. Patients and Methods: From 2012 to 2014,
27 patients with unruptured intracranial aneurysms were operated in our institute
with the help of MEP monitoring. All patients underwent endoscope-assisted microsurgery
with pre- and post-clipping indocyanine green angiography. Results: In this period, no mortality was observed, but 18.5% of the patients developed postoperative
deficits which showed good recovery in all cases. Overall, MEP showed about 90% accuracy
in predicting postoperative deficits. Conclusions: MEP as a part of multimodality monitoring of aneurysm surgeries is a valuable tool
to improve the outcome. However, we should know its limitations as its results are
not always consistent with the outcome.
Key-words:
Brain - clipping - monitoring - motor evoked potential - unruptured aneurysm
