Presentation
Occasionally patients will present with late-onset forms of this disease. [neuroweb.us]
These patients present with gait ataxia usually with headache and papilledema. Progressive hydrocephalus can also present with subacute-onset ataxia. [jpgmonline.com]
Vertigo, dizziness, and imbalance rank amongst the most common presenting symptoms in neurology, ENT, geriatric medicine, and general practice. [books.google.com]
Many different types of inherited ataxias are presently known. Examples include Machado-Joseph disease, ataxia-telangiectasia, and Friedreich ataxia. [encyclopedia.com]
The age of onset in affected individuals is also variable, with symptoms presenting from birth through late decades of life. [centogene.com]
Musculoskeletal
- Myopathy
[…] deficiency Addison disease Adie Syndrome Adiposis dolorosa ADNP-related multiple congenital anomalies-intellectual disability-autism spectrum disorder Adrenal incidentaloma Adult hepatocellular carcinoma Adult idiopathic neutropenia Adult-onset distal myopathy [sanfordresearch.org]
[…] ataxias may present with additional extra–central nervous system signs and symptoms, including the following: Slowly progressive early onset ataxia Oculomotor apraxia Telangiectasias Dysarthria Common findings include deafness, seizures, optic atrophy, myopathy [centogene.com]
[…] or complex I deficiency), 2) myopathy with exercise intolerance with premature fatigue and hyperpnea, often followed by fixed weakness (some forms of FSHMD fit into this category) (complex III deficiency), 3) myopathy with exercise intolerance, myoglobinuria [neuroweb.us]
Cerebellar Ataxia Cortical Ataxia Myopathy Labrynthine Ataxia Sensory Ataxia (Posterior Column) Thalamic Ataxia Sensory Ataxia (Peripheral Neuropahy)) 7. [slideshare.net]
Ubiquinone deficiency presents with many different clinical phenotypes ranging from myopathy to Leigh's disease. Gene inheritance and pathogenesis: Autosomal recessive, genetic heterogeneity is likely. [emedicine.medscape.com]
- Muscle Spasm
During an episode, someone with episodic ataxia may experience: problems with balance and co-ordination slurred, slow and unclear speech (dysarthria) muscle spasms involuntary eye movements (nystagmus) vertigo, migraines and tinnitus Episodic ataxia usually [nhs.uk]
Major symptoms include Parkisonism ( tremors and spasticity ), myoclonus (muscle spasms), Pons atrophy, and slowing of eye movement. [encyclopedia.com]
Neurologic
- Dystonia
Polyneuropathy was found in 97.5% of AOA2 patients, cerebellar atrophy in 96%, occasional oculomotor apraxia in 51%, pyramidal signs in 20.5%, head tremor in 14%, dystonia in 13.5%, strabismus in 12.3% and chorea in 9.5%. [lib.ugent.be]
SCA 7, 28 Oculomotor apraxia: Saccades slow + Orthostatism ; Recessive Motor Motor neuron & Fasciculations: SCA 3, 36 Cramps: 2, 3 UMN signs Common: SCA 1, 3, 7, 9, 12, 35 Some: SCA 6, 8 Rarely: SCA 2 Spastic ataxias Extrapyramidal Akinesia/rigidity/dystonia [neuromuscular.wustl.edu]
[…] ataxia and extrapyramidal signs (dystonia). [neuroweb.us]
Related signs and symptoms may include spasticity, tremor, fatigue, myoclonus, dystonia, peripheral neuropathy, seizures, thinking and memory difficulties, and personality or mood disorders. [hopkinsmedicine.org]
[…] dominant cerebellar ataxia Autosomal dominant cerebellar ataxia type 1 Autosomal dominant cerebellar ataxia type 2 Autosomal dominant cerebellar ataxia type 3 Autosomal dominant cerebellar ataxia, deafness and narcolepsy Autosomal dominant cervical dystonia [sanfordresearch.org]
- Cerebral Calcification
ectodermal dysplasia Cerebellar ataxia with peripheral neuropathy Cerebellar hypoplasia - tapetoretinal degeneration Cerebral malformation Cerebral cavernous malformations Channelopathy due to a voltage-gated potassium channel defect Channelopathy [sanfordresearch.org]
Other neurological features may include episodic unilateral headache with visual disturbances (hemianopia), deafness, encephalopathy (confusion, agitation, dementia), myelopathy, cerebral calcification and seizures. [neuroweb.us]
Treatment
TREATMENT PRECAUTION Please Note that not all patients Qualify for treatment of Degenerative Neurological conditions such as ATAXIA. [stemcellthailand.org]
You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments. [rarediseases.info.nih.gov]
Pharmacological treatment has been beneficial in a small number of patients with specific ataxias and further research is ongoing worldwide. [hopkinsmedicine.org]
31/08/1996 58 56 50 39 33% 2.0818/08/2000 49 42 37 40 18% Table 1: Chronic treatment with ERY-DEX: Long term benefit confirmed with compassionate treatment up to 2 y. [raredisorders.imedpub.com]
The treatment was safe and well tolerated by all subjects. [raysahelian.com]
Prognosis
What is the prognosis for ataxia? Ataxia is the sign of an underlying disease or illness and the prognosis depends upon the response to treatment of that underlying cause. [medicinenet.com]
What is the Prognosis of Hereditary Sensory Neuropathy Type II? (Outcomes/Resolutions) The prognosis of Hereditary Sensory Neuropathy Type II is good with appropriate treatment. [dovemed.com]
These evaluations may demonstrate that the patient requires rehabilitation following discharge, and, depending upon the prognosis, even long-term placement in a skilled nursing facility. F. Prognosis and Patient Counseling. [clinicaladvisor.com]
Prognosis The prognosis for a person with ataxia depends upon the type and nature of the disease. Ataxia as a result of trauma or infection may be a temporary condition, or leave some degree of permanent disability. [encyclopedia.com]
The prognosis is usually bad with survival rates less than a few years after onset. [neuroweb.us]
Etiology
In 183 short chapters, the book provides the essentials clinicians need on symptoms/signs, diagnostic tests, and neurologic disorders of all etiologies. For this edition, Timothy A. [books.google.com]
Mechanisms NT may have different mechanisms of action, depending on the etiology. For instance, when the sensory input is impaired or altered, the resulting misinformation may cause tremor despite the brain and spinal cord functioning correctly. [news-medical.net]
Risk factors include those patients with malnutrition due to 1 or more nutrition-related etiologies: decreased nutrient intake, increased nutrient losses, or impaired nutrient absorption. [raysahelian.com]
Imaging is not necessary to confirm the diagnosis but can help confirm cerebellar atrophy and rule out other etiologies of cerebellar disease. [clinicaladvisor.com]
(Etiology) The cause of Hereditary Sensory Neuropathy Type II is a recessive mutation in either the WNK1 gene on chromosome 12 (A), the FAM134B gene on chromosome 5 (B), the KIF1A gene on chromosome 2 (C), or in the SCN9A gene on chromosome 2 (D). [dovemed.com]
Epidemiology
[…] commonly at allele 37 (72%). 5 The vast majority (89%) of offspring of SGA2 confirmed patients have been shown to have expansions, whereas the remaining 11% have contracted cytosine, adenine, and guanine repeats with incomplete penetrance. 5 Limited epidemiologic [neurologyadvisor.com]
Pérez L, Cruz GS, Santos Falcón N, Almaguer Mederos L, Escalona Batallan K, Rodríguez Labrada R, Paneque Herrera M, Laffita Mesa JM, Rodríguez Díaz JC, Rodríguez RA, González Zaldivar Y, Coello Almarales D, Almaguer Gotay D, Jorge Cedeño H: Molecular epidemiology [karger.com]
An epidemiological study performed in the Netherlands found a prevalence of 3.0 : 100,000. The SCAs are genetically and clinically heterogeneous disorders with SCA1, SCA2, SCA3 and SCA6 being the most frequent genotypes worldwide. [ataxia-study-group.net]
Spinocerebellar degenerations in Japan: new insights from an epidemiological study. Neuroepidemiol. 2009;32:184-5. Teive HA, Munhoz RP, Raskin S,Arruda WO, de Paola L, Werneck LC, et al. [tinnitusjournal.com]
Epidemiology and clinical aspects of Machado-Joseph disease. Adv Neurol 1993;61:139-153. 33. Zawacki TM, Grace J, Friedman JH, Sudarsky L. Executive and emotional dysfunction in Machado-Joseph disease. Mov Disord 2002;17:1004-1010. 34. [demneuropsy.com.br]
Pathophysiology
Stage 1 is asymptomatic and largely undetectable, despite underlying pathophysiologic processes. [neurologyadvisor.com]
Physicians are equally disheartened to see exponential progress being made in the understanding of the pathophysiology of a complex disorder but few direct benefits resulting for their patients. [alzheimer-europe.org]
The neuropathology, pathophysiology and genetics of multiple system atrophy. Neuropathol Appl Neurobiol. 2012;38:4-24. PubMed Koeppen AH, Mazurkievicz JE. Friedreich Ataxia: Neuropathology Revised. J Neuropathol Exp Neurol 2013;72(2):78-90. [neuropathology-web.org]
This information brings new insights into the understanding of the pathophysiology of nerve involvement in SCA2 and sets some key points about the phenotype, which is relevant to guide the genetic/molecular diagnosis. [link.springer.com]
In this review, we summarise the clinical, genetic and pathophysiological features of this condition, and the investigations used in its diagnosis. [acnr.co.uk]
Prevention
Can ataxia be prevented? Since ataxia is the sign of an underlying disease, it may not necessarily be preventable. However, avoiding external causes of ataxia (environmental chemicals and toxins) may prevent some individuals from developing ataxia. [medicinenet.com]
Currently, there are no specific methods or guidelines for the prevention of Hereditary Sensory Neuropathy Type II, since it is a genetic condition Genetic testing of the expecting parents (and related family members) and prenatal diagnosis (molecular [dovemed.com]
A primary care physician is essential for coordination of health care available for patients, encouragement of preventative health management, education of patients about avoidance of risks, and to guide the use of medications. [hopkinsmedicine.org]
Damage to these nerves interrupts communication between the brain and other parts of the body and can impair muscle movement, prevent normal sensation in the arms and legs, and cause pain. [webmd.com]
[…] causes of cerebellar ataxia and there are as yet no proven ways to protect neurons from premature cell death or to restore neuronal populations that have been lost, symptomatic treatment can greatly improve the quality of life of these patients and prevent [alzheimer-europe.org]