University of Maryland School of Medicine logo
Emergency Medicine
All Departments
UMSOM Assistant
UMEM Educational Pearls
  • Home
  • Departments
  • Emergency Medicine
  • CME
  • UMEM Educational Pearls
  • CME
  • Courses and Conferences
  • Free Open Access Medical Education
  • UMEM Educational Pearls

Search

Title: When Benzodiazepines Fail in Status Epilepticus

Category: Neurology

Keywords: ESETT, benzodiazepine, fosphenytoin, valproate, levetiracetam, status epilepticus (PubMed Search)

Posted: 11/27/2019 by WanTsu Wendy Chang, MD (Updated: 7/21/2026)

  • Up to 1/3 of status epilepticus do not respond to benzodiazepines.
  • Fosphenytoin, valproate, and levetiracetam are 3 antiepileptic medications commonly used to treat benzodiazepine-resistant status epilepticus, though it is unclear which is more effective.
  • Results from the long awaited Established Status Epilepticus Treatment Trial (ESETT) has just been released.
  • Fosphenytoin, valproate, and levetiracetam each achieved seizure cessation within 1 hour in approximately 50% of patients.
    • 80% of responders had seizure cessation within 20 minutes.
  • Seizure recurrence was observed in 10% of each treatment group.
  • It is important to note the dosages of antiepileptic medications used were:
    • Fosphenytoin 20 mg PE/kg, max 1500 mg 
    • Valproate 40 mg/kg, max 3000 mg
    • Levetiracetam 60 mg/kg, max 4500 mg

Bottom Line: Fosphenytoin, valproate, and levetiracetaim have similar efficacy in treatment of benzodiazepine-resistant status epilepticus.

References

Kapur J, Elm J, Chamberlain JM, et al. Randomized trial of three anticonvulsant medications for status epilepticus. N Engl J Med. 2019;381:2013-13.

Follow me on Twitter @EM_NCC


University of Maryland School of Medicine logo
  • Departments
  • Programs
  • Research Centers
  • Institutes
  • Graduate Education
  • CIBR Cores
  • Offices of the Dean
    • University of Maryland, Baltimore
    • University of Maryland Medical Center
    • Medical Alumni Association of the University of Maryland
    • Health Sciences and Human Services Library
University of Maryland School of Medicine
655 W. Baltimore Street
Baltimore, MD 21201
Contact Us

© University of Maryland School of Medicine

    • Webmaster
    • Web Accessibility
    • Site Index
    • UMB Hotline
    • Employment
    • Map