Emergency Signs, Seizure Safety, and SUDEP
At a Glance
Familial temporal lobe epilepsy safety starts with a written seizure action plan: call emergency services for a seizure lasting 5 minutes, repeated seizures without recovery, breathing trouble, blue lips, or a seizure in water; consistent treatment also helps lower the risk of SUDEP.
While familial temporal lobe epilepsy is often mild, having any form of epilepsy requires a clear plan for safety and emergencies. Understanding how to recognize a medical crisis and how to manage the most serious risks—including changes in breathing and long-term safety—is essential for protecting your health and your independence.
Basic Seizure First Aid
What to do during a seizure:
- Time the event: Note exactly when the seizure starts.
- Clear hazards: Move hard or sharp objects out of the way.
- Cushion the head: Place something soft under the head if the person is on the ground.
- Loosen tight clothing: Especially around the neck.
- Turn on their side: Once convulsions stop, roll the person onto their side to help keep the airway clear.
- Stay with them: Monitor breathing and stay until they are fully alert.
What NOT to do:
- Do NOT restrain: Do not try to hold the person down or stop their movements.
- Do NOT put anything in the mouth: This can cause severe dental or jaw injury.
- Do NOT give food, water, or pills until the person is fully alert and aware.
Recognizing a Medical Emergency
Most focal seizures in familial temporal lobe epilepsy (FTLE) last for less than two minutes and resolve on their own [1]. However, if a seizure lasts longer or if multiple seizures happen in a row, it becomes a medical emergency known as status epilepticus.
The 5-Minute Rule
A convulsive seizure (one involving stiffening and shaking) that lasts 5 minutes or longer is considered status epilepticus [2][3]. At this 5-minute mark, the brain is less likely to stop the seizure on its own, and medical intervention is required immediately to prevent injury or long-term brain changes [4].
Call emergency services (911) immediately if:
- A convulsive seizure lasts 5 minutes or longer [2].
- Seizures happen one after another without the person fully waking up in between [2].
- The person has trouble breathing or their face/lips turn blue (cyanosis) [5].
- The seizure occurs in water (such as a pool or bathtub) [6].
- Follow your individualized seizure action plan for these and other specific triggers.
- A seizure occurs in someone who has never had one before.
Non-Convulsive Status Epilepticus (NCSE)
In some cases, the seizure activity doesn’t cause shaking but causes a prolonged “clouding” of consciousness or a dreamlike state that doesn’t end. This is called non-convulsive status epilepticus (NCSE) [7]. If you or a loved one experiences a period of confusion, staring, or “spacing out” that lasts significantly longer than a typical seizure—especially if they do not return to their normal baseline—they should be evaluated by a doctor urgently [8][9].
Seizure Clusters and Rescue Medications
Some people experience seizure clusters (also called acute repetitive seizures), which are groups of seizures that happen more frequently than your usual pattern [10]. To stop these clusters before they escalate into an emergency, your doctor may prescribe a rescue medication [11].
These are fast-acting benzodiazepines that can be administered by a caregiver at home or in public:
- Nasal Sprays: Midazolam or diazepam nasal sprays have product-specific approvals and age indications that vary by jurisdiction [10][12]. They are easy to use and do not require the person to be able to swallow [13].
- Rectal Gel: Diazepam rectal gel is another common option, especially for children or when nasal options are not preferred [10].
These medicines carry risks of sedation and respiratory depression, and caregiver training is required. You should have a written Seizure Action Plan that tells your caregivers exactly which medication to use, the dose to give, and when to call for an ambulance [14][12].
Understanding SUDEP and Breathing Risks
SUDEP stands for Sudden Unexpected Death in Epilepsy. While it is rare—affecting about 1 in 1,000 adults with epilepsy each year—it is the most serious risk associated with the condition [15].
Why Does It Happen?
Research into SUDEP often focuses on how seizures affect breathing and the heart. A common occurrence in temporal lobe seizures is ictal central apnea (ICA), where the brain temporarily “forgets” to tell the body to breathe during a seizure [16]. While ICA usually resolves on its own, in rare cases, it can lead to severe oxygen drops or dangerous heart rhythms [5][17].
Who is at Risk?
The absolute risk of SUDEP varies substantially. The most significant risk factor for SUDEP is the frequency of bilateral convulsive seizures (previously called grand mal seizures), where a focal seizure spreads to involve the whole brain [15][18]. Other risks include:
- Nocturnal Seizures: Seizures that happen while you are asleep and unsupervised [19].
- Prone Sleeping: Being found face-down (prone) after a seizure is common in SUDEP cases [20].
- Uncontrolled Epilepsy: Having seizures that do not respond to medication [15].
How to Reduce the Risk
The best way to lower the risk of SUDEP is to achieve the best seizure control possible [18].
- Take your medication every day. Staying consistent helps prevent the “big” convulsive seizures that carry the highest risk [21].
- Consider night monitoring. For those with nocturnal seizures, using a consumer monitor or a specialized listening device can alert others if a seizure occurs, allowing them to provide help. However, no monitoring device is proven to prevent SUDEP, and they do not replace supervision or your emergency plan [22][23].
- Follow up with your specialist. If your seizures aren’t controlled, ask about advanced treatments or a referral to a specialized epilepsy center [24].
Daily Safety Checklist
Living safely with epilepsy means making a few common-sense adjustments to your environment and routine.
Water Safety
Drowning is a major preventable risk for people with epilepsy [6].
- Showers over Baths: Avoid unsupervised bathing; taking a shower is generally safer [6].
- Supervised Swimming: Never swim alone. Ensure a lifeguard or a companion who knows how to help you is always watching [6].
- Door Locks: When in the bathroom, leave the door unlocked or use a “vacant/occupied” sign so help can reach you quickly if needed.
Driving and Machinery
- Licensing Laws: Laws vary widely by jurisdiction and may require a specific seizure-free period and physician reporting [25]. Do not drive until cleared under local law and clinician advice [6].
- Heavy Machinery: Avoid operating dangerous power tools or heavy machinery if your seizures are not fully controlled [6].
Heights and Falls
- Avoid High Places: If you have frequent seizures, avoid activities like climbing tall ladders or standing on rooftops where a sudden loss of awareness could lead to a serious fall [6].
- Cooking: Use the back burners on the stove when possible and avoid carrying pots of boiling water across the kitchen when you are feeling tired or “off” [6].
Common questions in this guide
When is a seizure an emergency?
What should I do while someone is having a seizure?
Can a seizure emergency happen without shaking?
How do rescue medicines help with seizure clusters?
What is SUDEP, and who has a higher risk?
How can I reduce seizure-related injury and SUDEP risk?
Questions to Ask Your Doctor
Curated prompts to bring to your next appointment.
- 1.Do I need a written Seizure Action Plan, and can we review it today with my family?
- 2.Given my seizure type, which rescue medication (nasal or rectal) is most appropriate for me?
- 3.How many 'seizure-free' months or years are required in our state before I can safely resume driving?
- 4.Am I at a higher risk for SUDEP because of the frequency of my nocturnal seizures?
- 5.What specific signs of breathing difficulty should my family look for after a seizure?
- 6.Would a nocturnal listening device or a seizure-detection wearable be a helpful addition to my safety plan?
Questions For You
Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.
References
References (25)
- 1
Familial Mesial Temporal Lobe Epilepsy: Clinical Spectrum and Genetic Evidence for a Polygenic Architecture.
Harris RV, Oliver KL, Perucca P, et al.
Annals of neurology 2023; (94(5)):825-835 doi:10.1002/ana.26765.
PMID: 37597255 - 2
Generalized convulsive status epilepticus after retrograde type A aortic dissection surgery.
Li Y, Wu Q, Shi H, et al.
Perfusion 2021; (36(3)):318-321 doi:10.1177/0267659120943158.
PMID: 32723152 - 3
Evidence-Based Guideline: Treatment of Convulsive Status Epilepticus in Children and Adults: Report of the Guideline Committee of the American Epilepsy Society.
Glauser T, Shinnar S, Gloss D, et al.
Epilepsy currents 2016; (16(1)):48-61 doi:10.5698/1535-7597-16.1.48.
PMID: 26900382 - 4
Current Management of Generalized Convulsive Status Epilepticus in Children.
Aulická Š
Children (Basel, Switzerland) 2022; (9(10)) doi:10.3390/children9101586.
PMID: 36291522 - 5
Postconvulsive central apnea as a biomarker for sudden unexpected death in epilepsy (SUDEP).
Vilella L, Lacuey N, Hampson JP, et al.
Neurology 2019; (92(3)):e171-e182 doi:10.1212/WNL.0000000000006785.
PMID: 30568003 - 6
Epilepsy: a cross-sectional study of paediatricians and general practitioners on their experiences, knowledge and handling of the disease.
Schnabel S, Neininger MP, Bernhard MK, et al.
Epileptic disorders : international epilepsy journal with videotape 2019; (21(2)):197-205 doi:10.1684/epd.2019.1048.
PMID: 31010799 - 7
Salzburg Consensus Criteria for Non-Convulsive Status Epilepticus--approach to clinical application.
Leitinger M, Beniczky S, Rohracher A, et al.
Epilepsy & behavior : E&B 2015; (49()):158-63.
PMID: 26092326 - 8
Management of status epilepticus: a narrative review.
Migdady I, Rosenthal ES, Cock HR
Anaesthesia 2022; (77 Suppl 1()):78-91 doi:10.1111/anae.15606.
PMID: 35001380 - 9
Electroencephalographic Seizures in Emergency Department Patients After Treatment for Convulsive Status Epilepticus.
Zehtabchi S, Silbergleit R, Chamberlain JM, et al.
Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society 2022; (39(6)):441-445 doi:10.1097/WNP.0000000000000800.
PMID: 33337664 - 10
Taking a Newer, Faster, Intranasal Route: A Narrative Review of Transitioning to a Less-Invasive Rescue Treatment for Seizure Clusters.
Peters JM, Becker DA, Misra SN, et al.
Patient preference and adherence 2024; (18()):383-389 doi:10.2147/PPA.S447028.
PMID: 38344151 - 11
Seizure cluster: Definition, prevalence, consequences, and management.
Jafarpour S, Hirsch LJ, Gaínza-Lein M, et al.
Seizure 2019; (68()):9-15 doi:10.1016/j.seizure.2018.05.013.
PMID: 29871784 - 12
Benzodiazepines for the Treatment of Seizure Clusters.
Penovich PE, Rao VR, Long L, et al.
CNS drugs 2024; (38(2)):125-140 doi:10.1007/s40263-023-01060-1.
PMID: 38358613 - 13
Psychosocial outcomes of repeated treatment of seizure clusters with midazolam nasal spray: Results of a phase 3, open-label extension trial.
Meng TC, Szaflarski JP, Chen L, et al.
Epilepsy & behavior : E&B 2023; (138()):108989 doi:10.1016/j.yebeh.2022.108989.
PMID: 36410152 - 14
Introduction to use of an acute seizure action plan for seizure clusters and guidance for implementation.
Patel AD, Becker DA
Epilepsia 2022; (63 Suppl 1()):S25-S33 doi:10.1111/epi.17344.
PMID: 35999175 - 15
Practice Guideline Summary: Sudden Unexpected Death in Epilepsy Incidence Rates and Risk Factors: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology and the American Epilepsy Society.
Harden C, Tomson T, Gloss D, et al.
Epilepsy currents 2017; (17(3)):180-187 doi:10.5698/1535-7511.17.3.180.
PMID: 28684957 - 16
The incidence and significance of periictal apnea in epileptic seizures.
Lacuey N, Zonjy B, Hampson JP, et al.
Epilepsia 2018; (59(3)):573-582 doi:10.1111/epi.14006.
PMID: 29336036 - 17
Potentially high-risk cardiac arrhythmias with focal to bilateral tonic-clonic seizures and generalized tonic-clonic seizures are associated with the duration of periictal hypoxemia.
Park KJ, Sharma G, Kennedy JD, Seyal M
Epilepsia 2017; (58(12)):2164-2171 doi:10.1111/epi.13934.
PMID: 29105057 - 18
Incidence and risk factors of sudden unexpected death in epilepsy in rural Northeast China.
Li R, Zhao D, Hu B, et al.
Seizure 2025; (126()):99-105 doi:10.1016/j.seizure.2025.02.011.
PMID: 39999632 - 19
SUDEP in the North American SUDEP Registry: The full spectrum of epilepsies.
Verducci C, Hussain F, Donner E, et al.
Neurology 2019; (93(3)):e227-e236 doi:10.1212/WNL.0000000000007778.
PMID: 31217259 - 20
Can We Prevent Sudden Unexpected Death in Epilepsy (SUDEP)?
Bhasin H, Sharma S, Ramachandrannair R
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2021; (48(4)):464-468 doi:10.1017/cjn.2020.221.
PMID: 33023683 - 21
[SUDEP in brief - knowledge and practice recommendations on sudden unexpected death in epilepsy].
Surges R, Conrad S, Hamer HM, et al.
Der Nervenarzt 2021; (92(8)):809-815 doi:10.1007/s00115-021-01075-3.
PMID: 33591415 - 22
Risks and predictive biomarkers of sudden unexpected death in epilepsy patient.
Ryvlin P, Rheims S, Lhatoo SD
Current opinion in neurology 2019; (32(2)):205-212 doi:10.1097/WCO.0000000000000668.
PMID: 30694923 - 23
Steps to prevent SUDEP: the validity of risk factors in the SUDEP and seizure safety checklist: a case control study.
Shankar R, Walker M, McLean B, et al.
Journal of neurology 2016; (263(9)):1840-6 doi:10.1007/s00415-016-8203-3.
PMID: 27334909 - 24
Sudden unexpected death in epilepsy: Risk factors, biomarkers, and prevention.
DeGiorgio CM, Curtis A, Hertling D, Moseley BD
Acta neurologica Scandinavica 2019; (139(3)):220-230 doi:10.1111/ane.13049.
PMID: 30443951 - 25
Predictors of and attitudes toward counseling about SUDEP and other epilepsy risk factors among Austrian, German, and Swiss neurologists and neuropediatricians.
Strzelczyk A, Zschebek G, Bauer S, et al.
Epilepsia 2016; (57(4)):612-20 doi:10.1111/epi.13337.
PMID: 26899504
This page is for informational purposes only and does not constitute medical advice about familial temporal lobe epilepsy. Your neurologist can create an individualized Seizure Action Plan and advise you about rescue medicines, monitoring, driving, and emergency care.
Get notified when new evidence is published on Familial temporal lobe epilepsy.
We monitor PubMed for new peer-reviewed studies on this topic and email a short summary when something meaningful changes.