Posts Tagged ‘Brain and nerves’

Transient Ischemic Attack

Written by Medicine and Health. Posted in Brain & nerves, Disease, Condition & Injury, Head & neck conditions

(TIA; Mini-Stroke)

Transient ischemic attack – Definition

Transient ischemic attack (TIA) is a temporary dysfunction of the brain due to a shortage of blood and oxygen. A TIA lasts no longer than 24 hours. It is sometimes referred to as a mini-stroke.

TIA is a serious condition. It serves as a warning for a potential stroke. About 30% of stroke patients have had a TIA at some point in the past.

Tourette syndrome

Written by Medicine and Health. Posted in Brain & nerves, Disease, Condition & Injury, Head & neck conditions

Tourette syndrome – Definition

Tourette syndrome (TS) is a chronic, neurological disorder that is a member of a larger group of primary tic disorders. It is characterized by motor and vocal tics. Both motor and vocal tics must be present, though not necessarily at the same time. Tics must be present for more than one year, and its onset must be prior to age 18. Tics are rapid, involuntary movements or sounds that occur repeatedly.

Tourette syndrome – Causes

The cause of TS is unknown. However, brain chemicals, called neurotransmitters, are likely involved. Dopamine and serotonin are most likely involved. In addition, stress and tension often increase tics.

Temporal Arteritis

Written by Medicine and Health. Posted in Brain & nerves, Disease, Condition & Injury, Head & neck conditions

(Giant Cell Arteritis)

Temporal arteritis – Definition

Temporal arteritis is a condition of inflammation of the arteries. It affects the head, neck, upper body, and arms. The temporal artery is most often affected. It runs over the temple, to the outside of the eye. In extreme or untreated cases, this condition can lead to blindness or strokes. Two other terms often associated with this condition include:

  • Giant cell arteritis (GCA) — another name for temporal arteritis
  • Vasculitis — a general term for swelling or inflammation of blood vessels

Tay-Sachs Disease

Written by Medicine and Health. Posted in Brain & nerves, Disease, Condition & Injury, Head & neck conditions

Tay-Sachs disease – Definition

Tay-Sachs disease (TSD) is a fatal genetic disorder. It occurs when a fatty substance builds up in the brain. This causes progressive destruction of the brain. There are three forms:

  • Infantile-onset
  • Juvenile-onset
  • Adult-onset

Given the best of care, all children with the infantile form die by the age of five.