Dizziness
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DiseasesDB = 17771 |
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eMedicineSubj = neuro |
eMedicineTopic = 693 |
MeshName = Dizziness | MeshNumber = C10.597.751.237 |Dizziness is a common and inclusive term for several specific symptoms which include pre-syncope, disequilibrium and vertigo. Pre-syncope is a faint, lightheaded sensation often experienced with rapid standing. Disequilibrium is an off balance, tilting or falling sensation not accompanied by nausea. Vertigo is a room spinning sensation associated with intense nausea and sometimes vomiting. Each of these more specific words is encompassed in the general term dizziness. Pathologic causes of dizziness can be related to the ear, eye, heart, respiratory system or central nervous system.
Neurological dizziness is not due to spinning around, standing upside-down or motion sickness. It is a light-headed sensation in which there is a head-ache and reduced consciousness. This can be accompanied by seeing stars, blacking out, convulsions, fainting, paralysis and other neurological symptoms. Take note that the dizziness caused by fainting is different from that of dizziness caused by spinning too fast. It is a different sensation.The stars (white spots that appear to move in front of the eyes), convulsions and confusion are often the result of excessive neuronal discharges often caused by the chemical glutamate. Oxygen deprivation can result in excessive neurological discharge leading to brain damage or/and convulsions due to glutamate after prolonged periods or about minute.* benign paroxysmal postural vertigo
* labyrinthitis
* Ménière's disease
* perilymphatic fistula
* neurinoma of the acoustic nerve
* vestibular neuronitis* new glasses
* optical illusions* arthritis
* cervical vertigo
* Whiplash and other strains* arteria basilaris syndrome
* concussion
* migraine
* multiple sclerosis
* orthostatic hypotension
* stroke
* peripheral neuropathyBreathing*Extreme intake of helium
*HyperventilationOther causes* AIDS
*The eating disorders Anorexia Nervosa and Bulimia Nervosa
* Low blood pressure and/or hyperventilation (often situational), such as emotionally-induced "fainting". Some persons may have deliberately or subconsciously "learnt" to induce such "dizziness" symptoms or complaints. Further medical tests may be needed to determine whether there is indeed a true medical cause. If the "dizziness" is psychosomatically linked, then cognitive and "play" therapies may introduce other ways of coping with strange, stressful and unusual situations.* motion sickness
* balance disorder* Hadassah Medical Center
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