TL;DR: Cluster seizures and status epilepticus are life-threatening medical emergencies that require immediate transport to a 24-hour emergency veterinarian to prevent permanent brain damage or organ failure.
What are cluster seizures and status epilepticus in cats?
Cluster seizures occur when a cat has two or more seizures within a 24-hour period. However, when a cat experiences multiple seizures without regaining consciousness or returning to a normal state in between, it is a more severe condition often referred to as Status Epilepticus. This means the brain is in a persistent state of seizure activity, which prevents the body from recovering.
Is it a veterinary emergency if my cat has back-to-back seizures?
- Yes, this is a critical, high-urgency emergency that requires immediate medical intervention.
- Seizures occurring back-to-back without a recovery period cause the cat's internal body temperature to rise to dangerous levels.
- This condition can lead to permanent brain damage, fluid in the lungs, or organ failure.
- If your cat is currently in this state, stop reading and transport them to the nearest 24-hour emergency veterinary hospital immediately.
How can a video or photo help the veterinarian treat my cat?
- While your priority is reaching the vet, a brief video of the episode is invaluable for the medical team.
- A video allows the veterinarian to observe muscle movements, eye tracking, and duration to distinguish seizures from other neurological events.
- This visual evidence helps the vet determine the correct type and dosage of emergency anticonvulsant medication to administer the moment you arrive.
Clinical Context (Merck Veterinary Manual)
For cats experiencing cluster seizures without regaining consciousness, emergency treatment may include a diazepam constant-rate infusion at 0.5-2 mg/kg/hr to control persistent status epilepticus. If phenobarbital use is precluded due to a preexisting hepatic condition, levetiracetam at 40-60 mg/kg may be administered IV, SC, or rectally. Diazepam should be used with caution in cats, as acute hepatic failure has been reported; a pretreatment chemistry profile is recommended, and close monitoring is essential during the first two weeks of use.
Chapter: Neurology, Emergency, Pharmacology
Source: The Merck Veterinary Manual, 11th Edition (Page 1220)