Abstracts

Rationale: The aim of this study was to analyze the clinical features of benign convulsions with mild gastroenteritis (CwG). We also evaluated the impact of fever and hyponatremia in CwG. Methods: We retrospectively reviewed the medical records of the patients with CwG from January 2010 to December 2013 at 4 university hospitals in Deajeon and Chungcheong area in Korea. Their demographics and clinical characteristics were reviewed. Results: Total 84 patients were included. Their mean age was 21.0 ± 13.7 months. Fifty seven patients (67.9%) presented seizures in winter. The seizure types were generalized tonic clonic (61.9%), generalized tonic (28.6%), focal (6.0%) and atonic seizures (3.6%). The mean duration of seizures was 3.4 ± 4.4 minutes. Forty three patients (51.2%) had clustered seizures. Rotavirus antigen was positive in 11 of 59 patients (18.6%). Among the 61 patients who had EEG, none showed epileptogenic discharges. Thirty five patients had brain MRI and nine patients had CSF study, all the results were normal. During seizure event, diazepam or lorazepam was frequently used, however only one patient maintained antiepileptic medication after discharge. Twelve patients (14.2%) accompanied fever, and 34 patients (40.5%) had mild hyponatremia (125 mmol/L < serum sodium <135 mmol/L). Seizure type or duration was not affected by fever or mild hyponatremia. Conclusions: This study showed benign nature of CwG. Furthermore, fever or mild hyponatremia did not affect seizure characteristics.