TL;DR: Cluster seizures in cats are a life-threatening medical emergency requiring immediate transport to a veterinary hospital to prevent permanent brain damage or organ failure. If safe, recording a video of the episode can help the veterinary team prepare the correct life-saving medications before you arrive.
What exactly are cluster seizures in cats?
When a cat experiences two or more seizures within a short period, such as one hour, it is medically referred to as cluster seizures. This condition suggests that the brain's electrical activity is severely disrupted and is unable to reset properly between episodes. This is a very serious state that requires professional medical intervention to break the cycle.
Are cluster seizures considered a life-threatening veterinary emergency?
- Urgency Level: High. Cluster seizures are a life-threatening emergency.
- Multiple seizures in quick succession can lead to status epilepticus, a condition where the brain is in a state of persistent seizure.
- This state can cause body temperature to rise to dangerous levels, leading to organ failure, brain edema, or permanent neurological damage.
- You should transport your cat to the nearest emergency veterinary hospital immediately.
Why is it helpful to record video or take photos of my cat's seizure for the vet?
- If it is safe and does not delay your trip to the vet, record a short video of the seizure.
- Videos allow the veterinarian to observe specific physical manifestations, the duration of the event, and the level of consciousness.
- This visual evidence helps the medical team differentiate between various types of neurological events.
- Footage allows the team to prepare the correct sedative or anticonvulsant medications before you even walk through the door.
Clinical Context (Merck Veterinary Manual)
For a cat experiencing multiple seizures within one hour (status epilepticus), diazepam can be administered intravenously as a bolus (0.5-2 mg/kg), repeated up to three times at 5-10 minute intervals. If seizures persist after the second or third bolus, a constant-rate infusion of diazepam at 0.5-2 mg/kg/hr may be initiated. Alternatively, propofol can be administered as a constant rate infusion at 0.1-0.6 mg/kg/min, followed by a loading dose of phenobarbital (if the animal is not already on phenobarbital) of 2-4 mg/kg, IV, every 6 hr for a total of four doses. If phenobarbital is contraindicated due to a preexisting hepatic condition, levetiracetam at 40-60 mg/kg may be given IV, SC, or rectally. Oral anticonvulsants should be resumed as soon as possible if currently being administered.
Chapter: Neurology, Emergency, Pharmacology
Source: The Merck Veterinary Manual, 11th Edition (Page 1220)