Hyporeflexia

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Carlos A Lopez, M.D. [2]

Overview

Causes

Life Threatening Causes

Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.

Common Causes

Causes by Organ System

Cardiovascular Stroke
Chemical / poisoning Aftershave, barium sulfate, selenious acid, cone shell poisoning, erythrokeratodermia ataxia, eucalyptus oil poisoning, licorice, herbal agent overdose cleistanthus collinus, opioid intoxication, oriental hornet poisoning , snakebites, sea snake poisoning , white chameleon poisoning
Dermatologic Vitamin E deficiency
Drug Side Effect All-trans retinoic acid, cevimeline, clonidine, fluphenazine, imidazoline, lamotrigine, vincristine,lorazepam, nelarabine, oxazepam, oxcarbazepine, perphenazine, phenothiazine, prochlorperazine, saquinavir, thioridazine, tiagabine, trifluoperazine, venlafaxine, vigabatrin, zaleplon
Ear Nose Throat ARTS syndrome
Endocrine Hypokalemic thyrotoxic periodic paralysis
Environmental No underlying causes
Gastroenterologic Chylomicron retention disease
Genetic Jansen's metaphyseal chondrodysplasia, Lambert-Eaton myasthenic syndrome, leigh's disease, lower motor neuron lesion, marinesco-Sjogren syndrome, NADH CoQ reductase deficiency, McLeod phenotype, mental retardation, x-linked, 94, miller fisher syndrome, mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes, multifocal motor neuropathy with conduction block, navajo neurohepatopathy, infantile neuroaxonal dystrophy, neuronal intranuclear hyaline inclusion disease, distal hereditary motor type VII, non-ketotic hyperglycemia, Pena-shokeir syndrome type 2, progressive external opthhalmoplegia, autosomal dominant, 1, Roussy-levy syndrome, Smith-Magenis syndrome, Southwestern athabaskan genetic diseases, spastic tetraplegic -- cerebral palsy, spinal bulbar motor neuropathy, spinal muscular atrophy, spinocerebellar ataxia
Hematologic Tang Hsi Ryu syndrome
Iatrogenic No underlying causes
Infectious Disease Lyme disease, quaternary syphilis, tabes dorsalis
Musculoskeletal / Ortho Adducted thumb syndrome recessive form, arthrogryposis due to muscular dystrophy, becker muscular dystrophy, benign congenital hypotonia, brown-Sequard syndrome, bulimia nervosa, CAMFAK syndrome, cauda equina syndrome, cerebro-Oculo-Facio-Skeletal syndrome, charcot-Marie-Tooth disease, type 2, cockayne syndrome, complex 1 mitochondrial respiratory chain deficiency, congenital myopathy, conus medullaris syndrome, distal hereditary motor type VII, Down's syndrome, Duchenne muscular dystrophy, Dykes-Markes-Harper syndrome, emerinopathy, Erb-goldflam, Fazio Londe syndrome , Gerstmann-Straussler-Scheinker syndrome, Guillain-Barré syndrome, Holmes-Adie syndrome, hyperkalemic periodic paralysis, hypokalemic periodic paralysis, hypokalemic thyrotoxic periodic paralysis, Lambert-Eaton myasthenic syndrome, lower motor neuron lesion, muscular dystrophy, multifocal muscular fibrosis, nervous system injuries due to penetrating neck injury, Infantile neuroaxonal dystrophy, neuronal intranuclear hyaline inclusion disease, paramyotonia congenita, penetrating neck injuries, peripheral nerve and muscle disease, polymyositis, progressive external opthhalmoplegia, rommen-mueller-sybert syndrome, scapuloperoneal amyotrophy, schwartz-jampel syndrome, Smith-Magenis syndrome, spinal cord compression, spinal muscular atrophy, transverse myelitis, Treft-sanborn-carey syndrome, Zellweger syndrome
Neurologic Acute weakness in the emergency department, ARTS syndrome, Brown-sequard syndrome, Bulimia nervosa, CAMFAK syndrome,Cauda equina syndrome, central cord syndromes, cerebellar stroke syndrome, Cerebro-Oculo-Facio-Skeletal syndrome, Charcot-Marie-Tooth disease, type 2, coloboma chorioretinal cerebellar vermis aplasia, conus medullaris syndrome , dorsal cord syndrome, Down's syndrome, Friedreich ataxia, folate deficiency, Gerstmann-Straussler-Scheinker syndrome, hypertrophic neuropathy of dejerine-sottas, infantile axonal neuropathy,Krabbe disease,Marinesco-Sjogren syndrome,neuroacanthocytosis, Miller fisher syndrome, muscular dystrophy, navajo neurohepatopathy, nervous system injuries due to penetrating neck injury, paramyotonia congenita, peripheral nerve and muscle disease, spinal muscular atrophy, pure motor lacunar syndrome, quaternary syphilis, rommen-mueller-sybert syndrome, segmental syndrome, spinal cord compression, spinocerebellar ataxia, stroke, transverse myelitis, vitamin E deficiency, ventral cord syndrome
Nutritional / Metabolic 3-methylglutaconic aciduria type 4, congenital disorder of glycosylation, cytochrome c oxidase deficiency, folate deficiency, hypermagnesaemia, hypokalemia, hypokalemic periodic paralysis, Krabbe disease, Leigh syndrome, Mcleod phenotype, NADH CoQ reductase deficiency, mitochondrial acetoacetyl-CoA thiolase deficiency, navajo neurohepatopathy, non-ketotic hyperglycemia, Pena-shokeir syndrome type 2, tabes dorsalis, vitamin E deficiency
Obstetric/Gynecologic No underlying causes
Oncologic No underlying causes
Ophthalmologic Cerebro-Oculo-Facio-Skeletal syndrome, Coloboma chorioretinal cerebellar vermis aplasia, Schwartz-jampel syndrome, Treft-sanborn-carey syndrome, Zellweger syndrome
Overdose / Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary No underlying causes
Renal / Electrolyte Bartter syndrome, neuroaxonal dystrophy renal tubular acidosis,
Rheum / Immune / Allergy Chediak-Higashi Syndrome, multifocal motor neuropathy with conduction block, severe combined immunodeficiency
Sexual No underlying causes
Trauma No underlying causes
Urologic Conus medullaris syndrome
Miscellaneous Hypothermia, stroke

Causes in Alphabetical Order

  • Congenital disorder of glycosylation type I
  • Central cord syndromes
  • Cerebellar ataxia, areflexia, pes cavus, optic atrophy and sensorinural hearing loss
  • Cerebellar syndrome
  • Cerebro-oculo-facio-skeletal syndrome
  • Cevimeline
  • Charcot-marie-tooth disease, type 2
  • Charcot-marie-tooth disease, type 2i
  • Charcot-marie-tooth disease, type 2l
  • Charcot-marie-tooth disease, x-linked
  • Chediak-higashi like syndrome
  • Chemical poisoning -- aftershave
  • Chemical poisoning -- barium
  • Chemical poisoning -- selenious acid
  • Choreoacanthocytosis amyotrophic
  • Chromosome 10, trisomy 10pter p13
  • Chylomicron retention disease
  • Clonidine
  • Cockayne syndrome type 1
  • Coenzyme q cytochrome c reductase deficiency of
  • Cofs syndrome
  • Coloboma chorioretinal cerebellar vermis aplasia
  • Complex 1 mitochondrial respiratory chain deficiency
  • Cone shell poisoning
  • Congenital myopathy
  • Conus medullaris syndrome
  • Cytochrome c oxidase deficiency
  • Cytochrome c oxydase deficiency, french-canadian type
  • Decreased folate
  • Decreased reflex response
  • Developmental delay -- hypotonia extremities hypertrophy
  • Dorsal (posterior) cord syndrome
  • Down's syndrome-like hypotonia
  • Duchenne muscular dystrophy
  • Dykes-markes-harper syndrome
  • Emerinopathy
  • Erb-goldflam
  • Erythrokeratodermia ataxia
  • Eucalyptus oil poisoning
  • Familial isolated deficiency of vitamin e
  • Fazio-londe syndrome
  • Fluphenazine
  • Friedreich ataxia
  • Gerstmann-sträussler-scheinker syndrome
  • Griscelli disease
  • Griscelli syndrome type ii
  • Guillain-barré syndrome
  • Herbal agent adverse reaction -- licorice
  • Herbal agent overdose -- cleistanthus collinus
  • Holmes-adie syndrome
  • Hyperkalemic periodic paralysis
  • Hypermagnesaemia
  • Hypertrophic neuropathy of dejerine-sottas
  • Hypokalemic periodic paralysis
  • Hypomyelination neuropathy -- arthrogryposis
  • Hypothermia
  • Imidazoline
  • Infantile axonal neuropathy
  • Insensitivity to pain with anhidrosis
  • King cobra poisoning
  • Krabbe disease, atypical, due to saposin a deficiency
  • Lambert-eaton myasthenic syndrome
  • Lambert-eaton myasthenic syndrome
  • Lamotrigine
  • Leigh syndrome
  • Leigh syndrome, french canadian type
  • Liposomal vincristine
  • Lorazepam
  • Lower motor neuron lesion
  • Lyme disease
  • Marinesco-sjogren syndrome
  • Maternally inherited leigh syndrome
  • Mcleod phenotype
  • Mental retardation, x-linked, 94
  • Metaphyseal chondrodysplasia, recessive type
  • Microcephaly -- mental retardation -- retinopathy
  • Microlissencephaly -- micromelia
  • Miller fisher syndrome
  • Mitochondrial encephalomyopathy -- aminoacidopathy
  • Multifocal motor neuropathy with conduction block
  • Muscular dystrophy -- white matter spongiosis
  • Muscular fibrosis, multifocal -- obstructed vessels
  • Nadh coq reductase, deficiency of
  • Navajo neurohepatopathy
  • Nelarabine
  • Nervous system injuries due to penetrating neck injury
  • Neuroaxonal dystrophy -- renal tubular acidosis
  • Neuroaxonal dystrophy, infantile
  • Neuronal intranuclear hyaline inclusion disease
  • Neuropathy, distal hereditary motor, type viia
  • Neuropathy, hereditary sensory, type iv
  • Non-ketotic hyperglycemia
  • Opioid intoxication
  • Oriental hornet poisoning
  • Oxazepam
  • Oxcarbazepine
  • Paramyotonia congenita
  • Pena-shokeir syndrome type 2
  • Penetrating neck injuries
  • Peripheral nerve and muscle disease
  • Perphenazine
  • Pharyngeal-cervical-brachial weakness
  • Phenothiazine antenatal infection
  • Polymyositis
  • Potassium deficiency
  • Prochlorperazine
  • Progressive external opthhalmoplegia, autosomal dominant, 1
  • Proximal spinal muscular atrophy
  • Pure motor syndrome
  • Quaternary syphilis
  • Rommen-mueller-sybert syndrome
  • Roussy-levy syndrome
  • Saquinavir
  • Scapuloperoneal amyotrophy
  • Schwartz-jampel syndrome
  • Sea snake poisoning
  • Segmental syndrome
  • Skeletal dysplasia -- mental retardation
  • Smith-magenis syndrome
  • Southwestern athabaskan genetic diseases
  • Spastic tetraplegic -- cerebral palsy
  • Spinal bulbar motor neuropathy
  • Spinal cord inflammation or compression
  • Spinal muscular atrophy type 4
  • Spinocerebellar ataxia
  • Spinocerebellar ataxia 22
  • Spinocerebellar ataxia 25
  • Spinocerebellar ataxia grade 2
  • Spinocerebellar ataxia-dysmorphism syndrome
  • Spinocerebellar ataxia, autosomal dominant
  • Stroke
  • Tabes dorsalis
  • Tang hsi ryu syndrome
  • Thiolase deficiency
  • Thioridazine
  • Thoracic dysplasia -- hydrocephalus syndrome
  • Thyrotoxic periodic paralysis
  • Tiagabine
  • Transverse myelitis
  • Treft-sanborn-carey syndrome
  • Trifluoperazine
  • Venlafaxine
  • Ventral (anterior) cord syndrome
  • Vigabatrin
  • Vitamin e deficiency
  • White chameleon poisoning
  • Zaleplon
  • Zellweger spectrum
  • Zellweger-like syndrome, without peroxisomal anomalies

References

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