Understanding epilepsy: what are the different types of seizures?

When people hear the phrase “epilepsy” they immediately think of one of the main symptoms of epilepsy: seizures. However, what many people aren’t aware of is the fact that seizures are complex and varied. There exists several different types of seizures and knowing them can help you understand epilepsy better, explain epilepsy to others and increase the awareness for those who don’t suffer from it.

Firstly, seizures are categorised into two types, either focal (or partial) seizures or generalised seizures.

Unlike generalised seizures, during focal seizures the patient still has some or total awareness of their surroundings and what is happening. Focal seizures are usually quite brief, lasting from mere seconds to 2 minutes. They affect different parts of the body depending on which part of the brain is having the seizure.

The impact of these seizures can be quite slight, from having a stiff arm and lip smacking to more severe symptoms such as undressing and screaming.  Seizures do not only have an impact on the movements of your body but also how you feel mentally. During a seizure patients may hallucinate, have impaired vision and have overwhelming feelings of fear and anxiety. These vary from person to person as everyone reacts differently during a seizure.

 Unlike focal seizures, generalised seizures affect the whole brain and therefore, the patient becomes fully unconscious. These seizures generally last between 1 to 3 minutes. If it lasts over 5 minutes then it is recommended to get immediate medical attention.

These are five types of seizures that can occur:

Tonic-clonic seizures are the most associated with epilepsy. First the patient will stiffen (this is the tonic phase) and all the air will be pushed out of their body, causing a groaning or moaning sound. They will then fall to the ground and experience the clonic phase. This is the stage where they will be having a convulsion and begin jerking wildly.

These seizures are the most ordinary and sometimes imperceptible. They last just several seconds and do not involve any convulsions. The patient may just become frequently distracted, staring into space and appear to be daydreaming. They are, however, unconscious during this time and unaware of their surroundings.

Myoclonic seizures are very brief and might just be one jerk of a muscle, such as a hand rapidly jerking into the air. From the outside, it might not look like an epileptic seizure at all because the person still appears to be fully conscious and the lapse of consciousness is so brief. It occurs when patients are tired and manifests in the arms, legs, neck or body.

These seizures are common in children and they involve a sudden drop or slack in the body or head. The head may droop forward or the body can slump completely to the ground. These can also be known as “drop attacks”. These seizures last up to fifteen seconds and the person is fully unconscious.

Tonic seizures involve the limbs or body suddenly becoming completely stiff. Patients can have a slight change in consciousness during these seizures and they last for up to 20 seconds. They generally occur when the patient is sleeping so they may not be aware that a seizure has occurred.

This is the rarest of all seizures and they occur predominately in babies. It lasts between 1 and 2 minutes and causes the whole body to jerk. The muscles relax and tense repeatedly over the course of the seizure.

People with epilepsy can suffer a mix of seizures or they can vary throughout their life but these are the most common for those suffering from epilepsy. Many people aren’t aware of the vast differences between seizures so we hope this article has enlightened you!

What type of seizures do you suffer from? Have you heard about all these types before? Please share to help raise awareness!

Hello..

My little boy Frankie has ASD (autism) and cortical dysplasia (the cause of his seizures/epilepsy)  Frankie is 5 and was born with this congenital condition but it wasn’t until he was 2 1/2 that he had his 1st seizure! It was tonic/clonic and lasted 40 minutes! The most scary thing I’ve seen (and I was a qualified nurse of 16 years at the time!) the noise was horrific.. Frankie has recently had his 2nd seizure roughly 2 years later (feb this year!) it lasted 5 minutes of tonic clonic but twitching occurred for sometime after... he has a few absence seizures and recently had his epilim increased... he’s very aggressive at the time of increase, which is normal and can take 2 weeks to settle!!! Frankie is a very happy and clever little boy and is still in mainstream with an educational statement in place so his needs are met with 1:1 support. He has yearly MRI scans to ensure his condition is monitored. We are under the care of neurology,autism specialist and the children’s epilepsy nurse. 

As a child my seizures were relatively well controlled until pharmacy gave my mother wrong prescription I had a status at school & when questioned by medical staff they accused my parents of not giving me my meds when my mum handed over the drugs from pharmacy they disappeared isn’t that strange . Luckily I got back on track until my hormones played me up every month I would have two or three seizures a month & it wasn’t until I went to a speech thearapist at a different hospital I transferred to the latter hospital as there was a neurologist who specialised in adolescents with epilepsy after about a year I was controlled his attitude was so much better, the one prior used to shout at my mum for answering as A, I couldn’t speak , B, I couldn’t remember what happened during a seizure where as my parents kept a detailed record to tell the consultant exactly what & where