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ORIGINAL RESEARCH article

Front. Neurol.

Sec. Epilepsy

Volume 16 - 2025 | doi: 10.3389/fneur.2025.1634105

Prevalence, Severity, Frequency and Healthcare Resource Use of Epilepsy among Individuals with Rett Syndrome: Analysis of Data from a Rett Center of Excellence

Provisionally accepted
Rashid  NaziaRashid Nazia1Ruetsch  CharlesRuetsch Charles2Lafrance  EmilyLafrance Emily2Jonathan  DarerJonathan Darer2*
  • 1Acadia Pharmaceuticals Inc, San Diego, United States
  • 2Health Analytics LLC, Clarksville, United States

The final, formatted version of the article will be published soon.

Background: Individuals with Rett Syndrome (RTT) frequently experience comorbid epilepsy. Few studies have examined the impact of epilepsy healthcare utilization using real-world datasets among RTT. The objective of this study was to examine all-cause and epilepsy-related healthcare utilization among individuals with RTT using electronic health record (EHR) data and chart notes. Methods: A retrospective comparative cohort analysis was performed among RTT individuals with and without epilepsy using EHR structured and abstracted clinical notes data. Epilepsy cases were stratified into severe (associated with prolonged or intractable seizures) and non-severe. RTT individuals with no epilepsy, non-severe epilepsy, and severe epilepsy were compared on seizure frequency and healthcare utilization. Results: In this analysis, 98 individuals with RTT were included: 71 (72%) had epilepsy of which 33 (46%) had severe epilepsy. Individuals with severe epilepsy (n=33) versus non-severe epilepsy (experienced daily seizures (53.8% vs. 11.1%), weekly (23.1% vs. 14.8%), or monthly (23.1% vs. 22.2%), respectively; however, more than half (51.9%) experienced no seizures among the non-severe group. The prevalence of ED visits was significantly higher among those with severe epilepsy compared to those with non-severe epilepsy (27% vs. 7%, p < 0.05). Inpatient admissions were significantly more prevalent among those with severe epilepsy versus non-severe epilepsy (37% vs. 14%, p < 0.05). Conclusions: Rates of epilepsy among individuals with RTT are at increased risk for healthcare utilization, especially those with severe epilepsy described as prolonged or intractable seizures. Of individuals with epilepsy, up to one-fourth experience daily seizures. It is important to educate health professionals of the high rate of concomitant epilepsy among RTT syndrome and how it can represent a substantial burden to patients and families with RTT. The frequency of seizures is more common among those with severe epilepsy.

Keywords: Rett Syndrome, Epilepsy, Seizures, healthcare utilization, Electronic Health Records

Received: 23 May 2025; Accepted: 25 Aug 2025.

Copyright: © 2025 Nazia, Charles, Emily and Darer. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Jonathan Darer, Health Analytics LLC, Clarksville, United States

Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.