“Seizure Code Strategy”: Improving Treatment Times and Clinical Outcomes in Patients with Urgent Epileptic Seizures
Published on: March 06, 2025
Epileptic seizures are among the leading causes of visits to emergency services, with nearly one million annual visits in the United States1. These patients may present with isolated seizures, seizure clusters, or status epilepticus2. Among these, status epilepticus is associated with the highest morbidity and mortality and is recognized as a neurological emergency. However, seizure clusters and isolated seizures can also lead to complications requiring immediate interventions2, 3. To address this, the term "urgent epileptic seizure" has been adopted to encompass these three clinical scenarios and facilitate their quick identification for timely treatment4.
Current evidence highlights time to treatment and adequate medication dosing as critical determinants of patient outcomes, underscoring the importance of prompt therapeutic action5. Nevertheless, delayed treatment times and subtherapeutic dosing remain common6. Therefore, classifying patients under the term "urgent epileptic seizure" may help trigger a sense of emergency to medical staff and achieve faster treatment times.
While some centers in high-income countries have implemented effective protocols and order sets for managing urgent seizures7, 8, 9, these initiatives face significant barriers in lower- and middle-income countries. Challenges include the absence of prehospital care infrastructure, a lack of electronic medical records, limited availability of intravenous antiseizure medications, and variability in hospital treatment practices10, 11, 12. As a result, there may be an increased risk of complications including prolonged seizures, increased hospital stays, and an increased likelihood of patients developing functional limitations or progressing to more refractory states of status epilepticus.
Recognizing these challenges and following the success of other groups in implementing protocols with highly favorable outcomes4, Dr. Camilo Espinosa and his team at Hospital de Kennedy in Bogota, Colombia, developed a comprehensive approach to improving outcomes in patients with urgent epileptic seizures. Their multidisciplinary strategy integrates neurology, emergency medicine, intensive care, nursing, and prehospital care to ensure rapid and coordinated treatment. Drawing inspiration from the “time is brain” concept in stroke management, the team implemented a "seizure code” protocol, emphasizing the critical importance of early intervention in seizure management13, 14. The seizure code strategy aligns with evidence showing that the therapeutic window for epileptic seizures is even shorter than that for acute stroke. These seizure code protocols have proven highly beneficial, particularly in lower-income populations, where simple and cost-effective interventions have yielded very favorable results.
A recent publication by Dr. Espinosa’s team demonstrated the efficacy of the seizure code strategy14. The implementation of this protocol led to markedly improved outcomes, including:
- A reduction in the time to administer benzodiazepines from 100 minutes to 20 minutes (p = 0.063)
- A decrease in the time to administer antiseizure medications from 155 minutes to 39 minutes (p = 0.071)
- Decreased rates of prolonged hospital stays from 48% to 36% (p = 0.047)
- Decreased in-hospital seizure recurrence for patients with seizure clusters from 27% to 4.9% (p < 0.001)
- A decrease in mortality from 5.3% to 0.4% (p = 0.007)
This seizure code strategy has also served as the foundation for collaborative efforts across several Latin American countries. Over time, groups in Argentina, Chile, and Mexico have begun implementing seizure code protocols, tailoring them to their specific demographic and economic context. In July, an academic meeting in Mexico City brought together physicians from across the region to share their experiences and strategies. This event, which was supported by pharmaceutical partnerships, facilitated discussions on optimizing this protocol while generating new research ideas. One main objective is to establish the first Latin American consensus on managing urgent seizures, with a focus on improving prehospital care quality, a critical area of need in the region.
While significant challenges remain, the seizure code strategy highlights the potential of collaborative, evidence-based approaches to improving outcomes for patients with urgent seizures. By prioritizing rapid treatment and coordinated care, this initiative offers a scalable model for improving functional outcomes and reducing the burden of seizures in resources-limited settings. Additionally, the implementation of a seizure code could also be applied in higher-income countries; despite well-organized educational interventions conducted at sites of recent clinical trials, consistent guideline-recommended dosing of anti-seizure medications remains a work in progress15. This serves as one of many potential examples of bidirectional strategies and therapeutic interventions that can be mutually adapted and shared between higher- and lower-income countries.
To read the Spanish version, please click here.
References
- Pallin DJ, Goldstein JN, Moussally JS, Pelletier AJ, Green AR, Camargo CA Jr. Seizure visits in US emergency departments: epidemiology and potential disparities in care. Int J Emerg Med. 2008 Jun;1(2):97-105.
- Galizia EC, Faulkner HJ. Seizures and epilepsy in the acute medical setting: presentation and management. Clin Med (Lond). 2018 Oct;18(5):409-413.
- Leitinger M, Trinka E, Giovannini G, Zimmermann G, Florea C, Rohracher A, Kalss G, Neuray C, Kreidenhuber R, Höfler J, Kuchukhidze G, Granbichler C, Dobesberger J, Novak HF, Pilz G, Meletti S, Siebert U. Epidemiology of status epilepticus in adults: A population-based study on incidence, causes, and outcomes. Epilepsia. 2019 Jan;60(1):53-62.
- García Morales I, Fernández Alonso C, Behzadi Koochani N, Serratosa Fernández JM, Gil-Nagel Rein A, Toledo M, González FJ, Santamarina Pérez E. Emergency management of epileptic seizures: a consensus statement. Emergencias. 2020 Oct;32(5):353-362. English, Spanish. PMID: 33006837.
- Gaínza-Lein M, Sánchez Fernández I, Jackson M, Abend NS, Arya R, Brenton JN, Carpenter JL, Chapman KE, Gaillard WD, Glauser TA, Goldstein JL, Goodkin HP, Kapur K, Mikati MA, Peariso K, Tasker RC, Tchapyjnikov D, Topjian AA, Wainwright MS, Wilfong A, Williams K, Loddenkemper T; Pediatric Status Epilepticus Research Group. Association of Time to Treatment With Short-term Outcomes for Pediatric Patients With Refractory Convulsive Status Epilepticus. JAMA Neurol. 2018 Apr 1;75(4):410-418.
- Sánchez Fernández I, Abend NS, Agadi S, An S, Arya R, Brenton JN, Carpenter JL, Chapman KE, Gaillard WD, Glauser TA, Goodkin HP, Kapur K, Mikati MA, Peariso K, Ream M, Riviello J Jr, Tasker RC, Loddenkemper T; Pediatric Status Epilepticus Research Group (pSERG). Time from convulsive status epilepticus onset to anticonvulsant administration in children. Neurology. 2015 Jun 9;84(23):2304-11.
- Cassel-Choudhury G, Beal J, Longani N, Leone B, Rivera R, Katyal C. Protocol-Driven Management of Convulsive Status Epilepticus at a Tertiary Children's Hospital: A Quality Improvement Initiative. Pediatr Crit Care Med. 2019 Jan;20(1):47-53.
- Xie Y, Morgan R, Schiff L, Hannah D, Wheless J. A computerized standard protocol order entry for pediatric inpatient acute seizure emergencies reduces time to treatment. J Child Neurol. 2014 Feb;29(2):162-6.
- Thiri W. Lin, Chhitij M. Tiwari, Casey-Olm Shipman, Chuning Liu, Fei Zou and Clio A. Rubinos. Implementation of a Standardized Order Set for the Management of Status Epilepticus in the Electronic Medical Records System, A Quality Improvement Initiative. American epilepsy Society Meeting 2024.
- Bhattarai HK, Bhusal S, Barone-Adesi F, Hubloue I. Prehospital Emergency Care in Low- and Middle-Income Countries: A Systematic Review. Prehosp Disaster Med. 2023 Aug;38(4):495-512.
- Rao SK, Mahulikar A, Ibrahim M, Shah A, Seraji-Bozorgzad N, Mohamed W. Inadequate benzodiazepine dosing may result in progression to refractory and non-convulsive status epilepticus. Epileptic Disord. 2018 Aug 1;20(4):265-269.
- Srivastava K, Suryawanshi VR, Yerrapalam N, Panda BK. Compliance with status epilepticus management protocol and effect on clinical outcomes in children with status epilepticus. Eur J Hosp Pharm. 2023 May;30(3):147-152. doi: 10.1136/ejhpharm-2021-002721.
- Trinka E, Cock H, Hesdorffer D, Rossetti AO, Scheffer IE, Shinnar S, Shorvon S, Lowenstein DH. A definition and classification of status epilepticus--Report of the ILAE Task Force on Classification of Status Epilepticus. Epilepsia. 2015 Oct;56(10):1515-23.
- Espinosa-Jovel C, Riveros S, Valencia-Enciso N, Velásquez A, Vergara-Palma J, Sobrino-Mejía F. Seizure emergency code strategy: Improving treatment times and hospital outcomes for patients with urgent epileptic seizures. Epileptic Disord. 2024 Aug 20. doi: 10.1002/epd2.20273.
- Sathe AG, Underwood E, Coles LD, Elm JJ, Silbergleit R, Chamberlain JM, Kapur J, Cock HR, Fountain NB, Shinnar S, Lowenstein DH, Rosenthal ES, Conwit RA, Bleck TP, Cloyd JC. Patterns of benzodiazepine underdosing in the Established Status Epilepticus Treatment Trial. Epilepsia. 2021 Mar;62(3):795-806.
Author Affiliations
- Camilo Espinosa-Jovel, ND; Epilepsy program, Hospital de Kennedy, Subred Sur Occidente, Bogotá, Colombia. Neurology posgraduate program, Universidad de La Sabana, Chía, Colombia.
- Clio Rubinos, MD, MS, FACNS; Department of Neurology, University of North Carolina (UNC) Chapel Hill, Chapel Hill, NC