Prophylactic Anticonvulsants in Patients Undergoing Craniotomy: A Single-Center Experience

BACKGROUND There is no consensus on the efficacy of seizure prophylaxis in patients undergoing craniotomy. Some studies show that antiepileptic use decreases the risk of seizures, but other studies do not support this. The present study investigated the role of antiepileptic drugs in patient undergoing craniotomy due to various intracranial pathologies. MATERIAL AND METHODS A retrospective review was performed in adult patients undergoing craniotomy between January 2013 and June 2017. Results of 282 patients who did not have a history of seizures and had craniotomies for various reasons were included. In all patients with craniotomy planned, prophylactic AEDs were initiated pre-operatively. RESULTS The incidence of postoperative seizures was 17.7% when all craniotomized patients were considered. The most commonly used anticonvulsant agent was phenytoin (75.2%). No serious antiepileptic drug reaction occurred requiring cessation of treatment. CONCLUSIONS Prophylactic antiepileptic treatment of patients undergoing craniotomy should not be continued beyond the first perioperative week if there is no serious brain injury. The intra- or extra-axial placement of the tumor affects the prophylaxis. Further randomized controlled studies are warranted in the future to investigate the efficacy of these medications.