von Willebrand Disease

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

von Willebrand disease – Definition

von Willebrand disease (vWD) is an inherited blood disorder. It decreases the blood’s ability to clot. As a result, bleeding lasts longer than usual.

von Willebrand’s disease is the most common hereditary bleeding disorder, affecting about 1% of the population. It affects both sexes approximately equally. There are no racial or ethnic associations with this disorder.

Vertigo

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

(Dizziness)

Vertigo – Definition

Vertigo is a feeling of spinning or whirling when you are not moving. It can also be an exaggerated feeling of motion when your body is still. Vertigo is different from passing dizziness or light-headedness.

Vertigo – Causes

Inner ear nerves and structures sense the position of your head and body in space. Vertigo is often caused by problems with these nerves and structures.

Vertigo can be due to the following conditions:

Benign Paroxysmal Positional Vertigo (BPPV)

There are tiny particles that naturally exist in the inner ear. Sometimes these particles can be displaced when the head is tilted. The particles then push against hair-like sensors in the ear. This can cause vertigo. BPPV may result from:

  • Head injury
  • Infections
  • Disorders of the inner ear
  • Age-related breakdown of the vestibular system
  • Idiopathic (no obvious cause)

Trigeminal Neuralgia

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

(Tic Doleureux)

Trigeminal neuralgia – Definition

Trigeminal neuralgia (TN) is a disorder of the trigeminal nerve (fifth cranial nerve) that causes severe, shooting pain along one side of the face. The trigeminal nerve senses touch, pain, pressure, and temperature. It also helps make saliva and tears.

In TN, pain usually lasts for less than a second to a few seconds and may come and go for days, weeks, months, or years. It may go into remission or stop completely for months or years. Over time, though, the attacks may become more frequent and more severe. Attacks can be brought on by chewing, washing, shaving, touching, or even a breeze on the face.

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.