Abstract:
OBJECTIVE:To evaluate the long-term seizure outcome and potential factors associated with seizure outcome in patients with anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis. METHODS:In the setting of a prospective, single-center, longitudinal cohort study, 109 patients were evaluated with ongoing follow-up. Patients underwent clinical evaluation every 3 months. Seizure outcomes and the potential risk factors were assessed with a median follow-up of 24 months (6-60 months). RESULTS:Of 109 patients (47 men; 62 women) with anti-NMDAR encephalitis, 88 patients (80.7%) had reported seizures at acute phase, including single seizure (17/88, 19.3%), repetitive seizures (27/88, 30.7%), nonrefractory status epilepticus (22/88, 25%), refractory status epilepticus (SE; 13/88, 14.8%), and super refractory status epilepticus (9/88, 10.2%). Seizure was more likely to recur in patients with tumor presence, status epilepticus (SE) development, coma, or intensive care unit (ICU) admission in the acute phase (p < 0.05). Seizure freedom was achieved within 2 years in all patients. More than 80% of the whole cohort with acute seizures had their last seizure within 6 months of disease onset. SIGNIFICANCE:Seizure is a common feature in the acute stage of anti-NMDAR encephalitis but not thereafter. The presence of tumor, SE, coma, and/or ICU admission in the acute phase predicts early seizure occurrence after the acute phase. Seizure freedom was typically achieved in our follow-up, and long-term use of antiepileptic drugs may not be necessary.
journal_name
Epilepsiajournal_title
Epilepsiaauthors
Liu X,Yan B,Wang R,Li C,Chen C,Zhou D,Hong Zdoi
10.1111/epi.13929subject
Has Abstractpub_date
2017-12-01 00:00:00pages
2104-2111issue
12eissn
0013-9580issn
1528-1167journal_volume
58pub_type
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