Disequilibrium

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Vendhan Ramanujam M.B.B.S [2]

Synonyms and keywords: Loss of balance; imbalance; off balance; unsteadiness

Overview

Disequilibrium refers to an impaired sense or absence of balance or equilibrioception, which primarily occurs during standing or walking usually without any cephalic sensations like headache, nausea and vomiting. It is one among the causes of dizziness[1] and is often accompanied by spatial disorientation.

Causes

Life Threatening Causes

Common Causes

Causes by Organ System

Cardiovascular Acute coronary syndrome, arrhythmia, arteriosclerosis, cardiomyopathy, congestive cardiac failure, dehydration, hypertension, hypotension, microscopic polyangiitis, past myocardial infarction, postural hypotension, rapidly assuming an upright position, transient ischaemic attack, vasculitic neuropathy, vertebrobasilar dissection
Chemical/Poisoning Acrylamide, arsenic, gamma-diketone hexacarbons, heavy metals, inhalation of irritants, konzo, lead, mercury, methanol, organophosphates, salicylate poisoning, toxic neuropathy
Dental No underlying causes
Dermatologic No underlying causes
Drug Side Effect Aminophylline, amiodarone, amphotericin B, antihypertensives, antibiotics, anticholinergics, anticonvulsants, antidepressants, aspirin, aurothioglucose, biguanide, bortezomib, capecitabine, carbachol, carbon tetrachloride, celecoxib, chlorpheniramine, cinnarizine, cisplatin, clomifene, colchicine, dapsone, diphenhydramine, disulfiram, diuretics, ethambutol, ethotoin, fluorouracil, hydralazine, hydroxyzine, isoniazid, ixabepilone, lamivudine, leflunomide, linezolid, lithium, mefloquine, melarsoprol, metronidazole, nalidixic acid , neuroleptics, nitrofurantoin, nortriptyline, nucleoside analogues, oxaliplatin, paclitaxel, phenylbutazone, phenytoin, physostigmine, postvaccinal, prochlorperazine, pyridoxine, rofecoxib, sedatives, stavudine, suramin, taxol, thallium, toluene, trabectedin, tranquilizers, verteporfin, vigabatrin, vincristine
Ear Nose Throat Impaired hearing
Endocrine Acromegaly, diabetes mellitus, diabetic amyotrophy, diabetic ketoacidosis, diabetic radiculopathy, hyperthyroidism, hypoparathyroidism, hypothyroidism, phaeochromocytoma
Environmental Altitude sickness, cold exposure, electrical injury, heat stroke, lathyrism
Gastroenterologic Celiac disease, chronic liver disease, hepatic cirrhosis, hepatic myelopathy , intestinal fistula, primary biliary cirrhosis, pyloric stenosis, topical sprue, viral hepatitis
Genetic 3-methylglutaconic aciduria, 4H syndrome, abetalipoproteinemia, adrenoleukodystrophy, adrenomyeloneuropathy, alpha-mannosidase deficiency, alpha-methylacyl-CoA racemase deficiency, Andermann syndrome, argininosuccinic aciduria, arylsulphatase a deficiency, aspartoacylase deficiency, ataxia-telangiectasia, ATP6V0A2-related cutis laxa, bilateral frontoparietal polymicrogyria, biotinidase deficiency, carbamoylphosphate synthetase deficiency, carbohydrate deficient glycoprotein syndrome type 1a, CCFDN syndrome, Charlevoix-Saguenay spastic ataxia, Christianson syndrome, Coach syndrome, Cockayne syndrome, coenzyme Q10 deficiency, dentatorubral-pallidoluysian atrophy, Fabry's disease, familial alphalipoprotein deficiency, Friedrich's ataxia, Gamstorp-Wohlfart syndrome, glucose phosphate isomerase deficiency, GM2 gangliosidosis, Griscelli syndrome type 2, Haw river syndrome, hereditary neuralgic amyotrophy, Huntington disease, hypobetalipoproteinemia, Joubert syndrome, Loken senior syndrome, Marinesco-Sjogren syndrome, MELAS, MERRF, multiple carboxylase deficiency, Navajo neurohepatopathy, phenylalanine hydroxylase deficiency, Pitt-Hopkins syndrome, progressive external ophthalmoplegia, Refsum disease, Revesz syndrome, Roussy-Levy disease, Sandhoff disease , SeSAME syndrome, Silver syndrome, Troyer syndrome, Unverricht-Lundborg disease, Van der Knaap disease, Von Hippel-Lindau syndrome
Hematologic Anemia, glucose phosphate isomerase deficiency, haemochromatosis, leukemia, multiple myeloma, pernicious anemia, polycythemia vera, sideroblastic anemia , solitary plasmacytoma
Iatrogenic No underlying causes
Infectious Disease Acute demyelinating encephalomyelitis, acute necrotizing myelopathy, acute viral myelitis, borrelia burgdorferi, botulism, brainstem encephalitis, brucellosis, cerebellar abscess, chickenpox, coxsackie disease, cysticercosis, cytomegalovirus polyradiculopathy, diphtheria, encephalomyelitis, endophthalmitis, epidural abscess, epstein-barr virus, Guillain-Barré syndrome, herpes simplex, herpes zoster, HIV, infectious cerebellitis, leprosy, lyme disease, malaria, meningoencephalitis, mycoplasma pneumoniae, ophthalmia neonatorum, osteomyelitis, polymyositis, schistosoma, septic arthritis, septicemia, syphilis, tick paralysis, transient synovitis, treponema pallidum, tuberculosis, typhoid fever, viral hepatitis
Musculoskeletal/Orthopedic Carpal tunnel syndrome, Charcot-Marie-tooth disease, chondroma, compartment syndrome, connective tissue disease, dermatomyosistis, Duchenne muscular dystrophy, Ewing's sarcoma, femoral neuropathy, hereditary neuralgic amyotrophy, herniated vertebral disc, leg fractures, muscle weakness, osteoarthritis, osteochondroma, osteoma, osteomyelitis, osteosarcoma, Pagets disease, peroneal compression at the fibular neck, Perthes disease, septic arthritis, slipped upper femoral epiphysis, tarsal tunnel syndrome , transient synovitis
Neurologic No underlying causes
Nutritional/Metabolic No underlying causes
Obstetric/Gynecologic No underlying causes
Oncologic No underlying causes
Ophthalmologic No underlying causes
Overdose/Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary No underlying causes
Renal/Electrolyte No underlying causes
Rheumatology/Immunology/Allergy No underlying causes
Sexual No underlying causes
Trauma No underlying causes
Urologic No underlying causes
Miscellaneous No underlying causes

Causes in Alphabetical Order

References

  1. "Chapter 14: Evaluation of the Dizzy Patient". Retrieved 2009-08-06.

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