Posts Tagged ‘Brain and nerves’

Tardive Dyskinesia

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

Tardive dyskinesia – Definition

Tardive dyskinesia (TD) is a neurologic syndrome. It results from prolonged use of neuroleptic drugs (also called antipsychotic drugs). This class of drugs is used to treat psychiatric conditions, like schizophrenia. TD consists of:

  • Abnormal twisting movements
  • Abnormal postures due to sustained muscle contractions

Tardive dyskinesia – Causes

It is unclear exactly why TD develops. Long-term use of neuroleptic drugs can cause changes in the chemistry in the brain that lead to the symptoms. Nerve cells may also become overly sensitive to certain substances, such as neurotransmitters in the brain. Not everyone who takes these drugs develops TD.

Sleep Apnea

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

(Obstructive Apnea; Central Apnea; Mixed Apnea)

Sleep apnea – Definition

Sleep apnea is a condition in which breathing is repeatedly interrupted during sleep. The time period for which the breathing stops or decreases is usually between 10 and 30 seconds. When these episodes occur repeatedly, sleep apnea can seriously disrupt the quality of sleep.

Shy-Drager Syndrome

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

(Multiple System Atrophy-A, Multiple System Atrophy With Postural Hypotension; Striatonigral Degeneration)

Shy-Drager syndrome – Definition

Shy-Drager syndrome is a degenerative disorder of the nervous system. It is a type of multiple system atrophy which means more than one area of the nervous system can be affected.

Shy-Drager affects nerves that control involuntary bodily functions, such as blood pressure, bowel and bladder functions, and nerves that control movement. Shy-Drager syndrome may also cause a drop in blood pressure after changing position that can result in dizziness or fainting.

Sciatica

Written by Medicine and Health. Posted in Back & spine, Brain & nerves, Chest conditions, Disease, Condition & Injury, Head & neck conditions, Leg conditions, Legs conditions

Sciatica – Definition

Sciatica is irritation of the sciatic nerve that passes down the back of each thigh.

The sciatic nerve arises from the lower spine on either side and travels deep in the pelvis to the lower buttocks. From there, it passes along the back of each upper leg and divides at the knee into branches that go to the feet.

Sciatica typically causes pain that shoots down the back of one thigh or buttock. Sciatica pain is often burning, tingling, or numbness on one side of the leg. Pain may also be present on one side of the buttocks that worsens when seated for a long time.