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Epilepsy glossary - P
Paediatrician – a doctor who specialises in medical conditions affecting children. Children with epilepsy will usually see a paediatrician up to the age of 16 – 18, and will then be referred to a neurologist.
Parallel imports – drugs that are made outside of, and then brought into, the UK. This is legal between European Union countries. Parallel imports can cause some problems: the PIL might not be in English, the packaging may look different, and the way the drug is made, packaged and stored may be different which could affect how it works.
Paraesthesiae – the scientific name for the feeling of pins and needles. This can be a type of simple partial seizures or the side effect of some AEDs, but it can also happen for other reasons not connected to epilepsy.
Parietal lobes – the area of the brain at the top of your head behind your frontal lobes. The parietal lobes control how we feel and understand sensations. They also control how we judge spatial relationships (such as the distance between two objects), our coordination and our ability to read, write and do maths.
Parietal lobe seizures – partial seizures that start in the parietal lobe. Simple partial seizures from the parietal lobe include feeling numb or tingling in part of the body, a burning sensation or feeling of heat, or feeling that parts of the body are bigger or smaller than they really are. Complex partial seizures from this area are rare.
Partial seizures – seizures that happen in, and affect, only part of the brain (not the whole of the brain). What happens in partial seizures varies depending on which part of the brain is affected and what that part of the brain normally does. Partial seizures are also called ‘focal seizures’ because the seizures come from a focal point in the brain.
Paroxysm – a sudden, short-lived event such as a convulsion or spasm. Sometimes epileptic seizures are called ‘paroxysmal events’.
Patient information leaflet (PIL) – the leaflet that comes with every prescription of medication, and says what the medication is, what it is for and how to take it. The PIL also includes details of what side effects to look out for and what to do if you are ill or forget to take the medication. Many drug companies have medical or patient information lines that you can call if you are taking their medication and you have any questions. This phone number is usually listed on the PIL.
PET (Positron Emission Tomography) – a type of scan or way of imaging the body using radiation. PET might be used if a person is being considered for epilepsy surgery.
Petit mal – another name for absence seizure. It means ‘little illness’ and does not describe what happens during the seizure: we tend not to use this term anymore.
Photosensitivity – when seizures are triggered by certain frequencies of flashing or flickering lights, or by moving patterns and shapes. Only about five percent (5 in 100) people with epilepsy are photosensitive, and it is more common in children. Photosensitivity usually causes tonic clonic seizures and often responds well to treatment.
Polycystic Ovary Syndrome (PCOS) – a common hormonal condition when eggs from a woman’s ovaries do not develop properly and eggs stay in the ovaries and form non-harmful cysts. PCOS is more common in women with epilepsy than women without epilepsy, and can cause acne, weight gain and hirsutism.
Polytherapy – when more than one medication is taken. See monotherapy.
Post-ictal – after a seizure. This word is often used when describing how someone feels or behaves after their seizure ends: a post-ictal state where the person may be very confused, tired or want to sleep.
Pre-ictal – before a seizure.
Prophylactic – something that is taken to stop something happening. For example, AEDs are prophylactic and are taken to try and stop seizures from happening (rather than using them to treat a seizure once it starts).
Protocol – a written list of instructions about how to carry out a particular task. For example, if someone has rectal diazepam for status epilepticus, it is important that there is a protocol for when and how to give it.
Psychiatrist – a medically trained doctor who specialises in mental health problems. Psychiatrists are medically qualified and can prescribe medications.
Psychologist – someone who studies the way the mind works and how people behave. Clinical psychologists are trained to help people manage mental health and social problems and they cannot prescribe medications.
