Early-Onset Seizures After Orthotopic Liver Transplantation: A Single-Center Retrospective Study

Background

After encephalopathy, epileptic seizures (ES) are the second most common neurologic complication after orthotopic liver transplantation (OLT) and may announce a disabling/fatal neurologic disease.

Methods

In this retrospective study, we collected clinical information from patients who underwent OLT at our institution and analyzed outcomes and potential risk factors for developing ES after OLT.

Results

Fourteen of our 376 patients (3.72%) who underwent OLT had ES. After excluding 2 patients with already known epilepsy, among the other 12 patients, 2 were diagnosed with nonanoxic cerebral edema, 2 with anoxic damage, 1 with intracranial hemorrhage, 1 with metabolic derangement, and 4 with neurotoxicity; 2 did not receive a diagnosis of certainty. 9 of 12 patients had structural abnormalities on neuroimaging exams. Patients with ES had lower body mass index, higher rate of pretransplant portal thrombosis, and lower pre-transplant plasma concentration of albumin than patients without ES. Multiple post-transplantation systemic complications, postoperative infections, and graft rejection were correlated with a significantly higher risk of ES. Compared with patients without seizures, patients with ES had longer in-hospital and intensive care unit (ICU) length of stay, higher probability of ICU readmission, in-hospital death, and need for rehabilitation. Just 3 of the 12 patients with ES had a good prognosis, while the other 9 had at least mild neurologic sequelae, 5 of whom died because of the underlying neurologic disease.

Conclusions

ES after OLT may announce detrimental neurologic disease. When an underlying neurologic disease is excluded, prognosis in terms of seizure recurrence and long-term antiseizure medication need is warranted.