- Evaluation for a new major neurological deficit post-procedure implies the reversal of sedation (or waiting for the patient to recover from sedation) and the performance of a GCS examination (verbal scores in intubated patients may be extrapolated from the eye-opening and motor scores using the values provided in the table included in Section 3.9.1.2.1 of the protocol). In the event of a new major neurological deficit that does not improve within 12 hours after the clipping procedure, the patient cannot be included in the study.