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Topic: Opsoclonus Myoclonus


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In the News (Mon 23 Oct 17)

  
  Opsoclonus Myoclonus Information on Healthline   (Site not responding. Last check: 2007-10-19)
Opsoclonus myoclonus is a very rare syndrome that strikes previously normal infants, children, or adults, often occurring in conjunction with certain cancerous tumors,
Many cases of opsoclonus myoclonus follow a bout of a viral illness such as infection with influenza, Epstein-Barr or Coxsackie B viruses, or after St. Louis encephalitis.
When opsoclonus myoclonus occurs in adults, it is usually associated with tumors in the lung, breast, thymus, lymph system, ovaries, uterus, or bladder.
www.healthline.com /galecontent/opsoclonus-myoclonus   (738 words)

  
  MDVU Resource Library - Myoclonus - Pathophysiology
In cortical myoclonus, a dysfunction at the level of the sensorimotor cortex may arise due to the distant effect of cerebellar pathology, resulting in decreased cortico-cortical inhibition; pathologic involvement of the cortex is not necessary.
These results indicate that myoclonus due to corticobasal ganglionic degeneration may be due to reafference rather than corticospinal drive, which points to a subcortical origin of the movements with a disturbed interaction between sensorimotor cortex and subcortical structures.
The pathophysiology of essential palatal myoclonus is unknown; however, secondary or symptomatic palatal myoclonus may be immunologic, psychogenic, or genetic in origin, or it may be related to trauma9 or a localized lesion within the brainstem or upper cerebellar peduncle.
www.mdvu.org /library/disease/myoclonus/myo_path.html   (624 words)

  
 Opsoclonus Myoclonus: Encyclopedia of Neurological Disorders
Opsoclonus myoclonus is a syndrome in which the eyes dart involuntarily (opsoclonus or dancing eyes) and muscles throughout the body jerk or twitch involuntarily (myoclonus).
Opsoclonus myoclonus is a very rare syndrome that strikes previously normal infants, children, or adults, often occurring in conjunction with certain cancerous tumors, viral infections, or medication use.
Most children who develop opsoclonus myoclonus are under the age of two when they are diagnosed.
health.enotes.com /neurological-disorders-encyclopedia/opsoclonus-myoclonus   (135 words)

  
 Postgraduate Medicine: Primary care guide to myoclonus and chorea
Myoclonus is defined as sudden, brief, shocklike involuntary movements caused by muscular contractions (ie, positive myoclonus) or inhibitions (ie, negative myoclonus, or asterixis) (1).
Opsoclonus is defined as involuntary, repetitive, rapid conjugate eye movements (ocular saccades) that are irregular in amplitude and frequency and occur in all directions without an intersaccadic interval.
Myoclonus and chorea are hyperkinetic movement disorders that confer a jerky appearance.
www.postgradmed.com /issues/2000/10_00/caviness.htm   (2964 words)

  
 opsoclonus-myoclonus syndrome Search Results From Healthline   (Site not responding. Last check: 2007-10-19)
Opsoclonus myoclonus is a rare neurological disorder characterized by unsteady.
Opsoclonus myoclonus syndrome (OMS) is a rare neurological disorder of unknown causes which appears to be the result of an autoimmune process involving the...
Opsoclonus - myoclonus syndrome is a rare neurological disorder that usually affects infants and young.
www.healthline.com /search?q1=opsoclonus-myoclonus+syndrome&imuId=8111347   (278 words)

  
 PNSEUROENT: Paraneoplastic Neurological syndromes: Professional area   (Site not responding. Last check: 2007-10-19)
Opsoclonus is defined by the presence of spontaneous, arrhythmic, large amplitude conjugate saccades occurring in all directions of gaze without a saccadic interval.
Opsoclonus is usually associated with myoclonus of the limbs and trunk, and sometimes encephalopathy; these symptoms cannot be clinically differentiated from those caused by non-paraneoplastic etiologies.
Opsoclonus, myoclonus, ataxia and encephalopathy in adults with cancer: A distinct paraneoplastic syndrome.
www.pnseuronet.org /professionals/opso.htm   (420 words)

  
 Saccadic Nystagmus
Opsoclonus essentially differs from flutter in that opsoclonus is oriented in any direction (horizontal, vertical, torsion), while flutter is generally always purely horizontal.
Opsoclonus is nearly always caused by a neural tumor (a neuroblastoma) or a paraneoplastic syndrome (a tumor elsewhere in the body).
Opsoclonus may also be caused by a viral infection of the brainstem or cerebellum, as well as autoimmune processes.
www.dizziness-and-balance.com /practice/saccadic-nystagmus.htm   (1670 words)

  
 Opsoclonus Myoclonus Treatment and Symptoms
Opsoclonus myoclonus syndrome (OMS) is a rare neurological disorder of unknown causes which appears to be the result of an autoimmune process involving the nervous system.
Opsoclonus myoclonus syndrome (OMS) is a rare neurological disorder of unkno...
Opsoclonus myoclonus is a rare neurological disorder characterized by unsteady gait, intention tremor (rhythmic, involuntary motions of the limbs during voluntary movemen...
www.goldbamboo.com /topic-t3409.html   (249 words)

  
 CIGNA - Opsoclonus-Myoclonus Syndrome
In approximately 50 percent of affected individuals, a malignant tumor, usually a tumor of embryonic nerve cells (neuroblastoma), is responsible for the symptoms associated with opsoclonus myoclonus.
Opsoclonus-myoclonus syndrome is characterized by repeated, rapid eye movements in both horizontal and vertical directions (opsoclonus); unsteady, gait (ataxia); brief, repeated, shock-like spasms of several muscles within the arms, legs (myoclonus) and interrupted, rhythmic and involuntary motion during a voluntary movement of an arm or leg.
Myoclonus is a group of movement disorders characterized by sudden, involuntary contractions of a skeletal muscle or group of muscles.
www.cigna.com /healthinfo/nord679.html   (1569 words)

  
 MDVU Resource Library - Myoclonus - Treatment
The most important step in treating myoclonus is to first identify and appropriately classify the subtype of the disorder because the pathology—and, therefore, treatments and outcomes—are cause specific in many cases.
The guiding principles in the pharmacologic treatment of myoclonus are (1) to recognize that therapy is empiric, targeted at symptom relief, and (2) that, although polytherapy is often required, treatment should be instituted with a single drug.
Surgical techniques that have been employed in the treatment of myoclonus include decompression of a peripheral injury in peripheral myoclonus20, removal of the compression lesion in spinal myoclonus21, thalamic stimulation for medically intractable inherited myoclonus-dystonia syndrome22,23, and excision of neoplasms in opsoclonus-myoclonus.
www.mdvu.org /library/disease/myoclonus/myo_tre.html   (1730 words)

  
 NEUROLOGICAL DISORDERS - Opsoclonus Myoclonus (Kinsbourne syndrome, Myoclonic Encephalopathy of Infants, Dancing ...
Opsoclonus myoclonus is a rare neurological disorder characterised by an unsteady, trembling gait, myoclonus (brief, shock-like muscle spasms), and opsoclonus (irregular, rapid eye movements).
Opsoclonus myoclonus may occur in association with tumours or viral infections.
The prognosis for opsoclonus myoclonus varies depending on the symptoms and the presence and treatment of tumours.
www.medic8.com /neurological-disorders/opsoclonus-myoclonus.htm   (300 words)

  
 Myoclonus, General
Myoclonus is a neurological movement disorder characterized by sudden, involuntary contractions of skeletal muscles.
Intention Myoclonus is characterized by episodes of sudden, involuntary muscle contractions that are triggered by voluntary movements, such as a purposeful action.
Opsoclonus is a form of Myoclonus that is limited to one area of the body (localized).
hw.healthdialog.com /kbase/nord/nord62.htm   (2381 words)

  
 Opsoclonus Myoclonus - WrongDiagnosis.com
Opsoclonus myoclonus is a rare neurological disorder characterized by unsteady gait, intention tremor (rhythmic, involuntary motions of the limbs during voluntary movements), myoclonus (brief, shock-like muscle spasms), and opsoclonus (irregular, rapid, horizontal and vertical eye movements).
A combination of opsoclonus (involuntary conjugate eye movements of large amplitude) and myoclonic jerks.
The prognosis for opsoclonus myoclonus varies depending on the symptoms and the presence and treatment of tumors.
www.wrongdiagnosis.com /o/opsoclonus_myoclonus/intro.htm   (493 words)

  
 QMJ
Opsoclonus myoclonus syndrome (OMS) is a very rare syndrome which presents with ataxia, opsoclonus and myoclonus.
Opsoclonus myoclonus syndrome is characterized by acute or subacute onset of abnormal eye movements, myoclonic jerks ataxia, dysarthria and behavioral changes.
Myoclonus is characterized by generalized, irregular, rapid jerks that involve proximal muscles(9) and may be difficult to differentiate from ataxia(10).
www.hmc.org.qa /hmc/qmj/june2002/case/case3.htm   (1524 words)

  
 Baylor Neurology Case of the Month
Opsoclonus is characterized by conjugate, randomly directed, rapid eye movements, sometimes described as "saccadomania." These movements are unequal, may occur episodically, and usually occur in the horizontal plane.
The myoclonus aspect of the opsoclonus-myoclonus syndrome may occur in the face, head/neck, trunk, limbs, fingers and hands.
Myoclonus may be spontaneous, or induced by crying, stress, stimulation (light, noise, pin prick, visual, threat), or excitement.
www.bcm.edu /neurol/challeng/pat57/summary.html   (2268 words)

  
 Opsoclonus - myoclonus syndrome in an adult: A case report and response to clonazepam Garg RK, Kar AM, Dixit V - Indian ...
Opsoclonus is a striking disorder of eye movement reflecting the presence of unwanted saccades.
Opsoclonus is exacerbated by attempts at visual pursuit or refixation, persists when eyes are closed and during sleep.
His opsoclonus and myoclonus were reduced, and he was able to sit and stand with support.
www.ijo.in /article.asp?issn=0301-4738;year=1996;volume=44;issue=2;spage=101;epage=102;aulast=Garg   (958 words)

  
 The Opsoclonus Myoclonus Home Page
The Opsoclonus Myoclonus Support Network recognizes the immediate need of Opsoclonus Myoclonus patients and their families to network with others affected by the syndrome, to have access to comprehensive information relating to the syndrome, and to be informed of the latest research.
The Opsoclonus Myoclonus Support Network believes the syndrome's causes are discernible, and therefore advocates and supports research investigating the syndrome's neuro-biological and biochemical basis.
The Opsoclonus Myoclonus Support Network Home Page is therefore designed to assist opsoclonus myoclonus patients and their families network with others also affected by the opsoclonus myoclonus syndrome and to serve as a resource center.
www.geocities.com /opso-myoclonus   (339 words)

  
 Opsoclonus Myoclonus Syndrome (O.M.S.) information page.
Opsoclonus myoclonus may occur in association with tumors or viral infections.
The purpose of a national center for myoclonus is to provide the best care possible for patients whose myoclonus began during childhood.
This care includes making the correct diagnosis, searching for all reversible (curable) causes, choosing the best drug treatments available, providing information about myoclonus, obtaining psychological and emotional support for the children and their families, and bringing them together with other similar families.
www.videosilva.com /oms.html   (678 words)

  
 Introduction: Opsoclonus Myoclonus - CureResearch.com
- Misdiagnosis of Underlying Causes of Opsoclonus Myoclonus
Opsoclonus Myoclonus: Opsoclonus myoclonus is a rare neurological disorder characterized by unsteady gait, intention tremor (rhythmic, involuntary motions of the limbs during voluntary movements), myoclonus (brief, shock-like muscle spasms), and opsoclonus (irregular, rapid, horizontal and vertical eye movements).
Researching symptoms of Opsoclonus Myoclonus: Further information about the symptoms of Opsoclonus Myoclonus is available including a list of symptoms of Opsoclonus Myoclonus, or alternatively return to research other symptoms in the symptom center.
www.cureresearch.com /o/opsoclonus_myoclonus/intro.htm   (306 words)

  
 Pranzatelli-oms patient information
"Opsoclonus" is an unusual disorder of eye movement in which both eyes dart involuntarily (dancing eyes).
Myoclonus occurs most when movement is attempted, worsens with agitation or stimulation, but may be present at rest.
When opsoclonus and myoclonus occur as separate disorders, they have many causes, but the combination is rather specific for tumors and infections.
www.omsusa.org /pranzatelli-Brochure1.htm   (1795 words)

  
 WE MOVE - Myoclonus - Pharmacologic Agents
Although clonazepam and valproic acid are often used in the treatment of myoclonus, they have never been formally studied for this use.
A trial of this drug is reasonable in most patients with myoclonus, particularly those with proven posthypoxic cortical myoclonus.
Caution is urged with the use of these drugs because many may actually make myoclonic symptoms worse or may cause myoclonus in some patients.
www.wemove.org /myo/myo_phm.html   (699 words)

  
 Opsoclonus Myoclonus Neuroblastoma Gabrielle's Garden   (Site not responding. Last check: 2007-10-19)
I was also diagnosed with an extremely rare disease called opsoclonus myoclonus syndrome that was caused by the cancer.
The reason for this is children that have Neuroblastoma with Opsoclonus Myoclonus have a very small chance of the tumor being aggressive or reoccurring.
The theory is the body's immune system is trying to destroy the tumor however the tumor and the brain must have similar properties, as the immune system cannot tell them apart and the brain is an innocent bystander caught in the "cross-fire" between the immune system and the tumor, which it is trying to destroy.
www.gabriellemoss.com   (2296 words)

  
 WE MOVE - Other Forms of Myoclonus
The diagnosis of psychogenic myoclonus often requires electrophysiologic testing, including electromyography (EMG), electroencephalography (EEG), and back-averaging EEG-EMG to rule out physiologic causes.
In myoclonus dystonia, arm involvement is prominent, and the legs are usually unaffected.
Opsoclonus-myoclonus, also known as Kinsbourne syndrome, is the dancing eyes syndrome or myoclonic encephalopathy of infants.
www.wemove.org /myo/myo_afm.html   (138 words)

  
 Opsoclonus myoclonus syndrome   (Site not responding. Last check: 2007-10-19)
Opsoclonus myoclonus syndrome is a neurological disorder acquired in children as a result of the presence of a neuroblastoma (paraneoplastic syndrome) or, more rarely, a viral infection.
Three out of the four following criteria must be present for diagnosis: opsoclonus (involuntary, rapid eye movements), ataxia/myoclonus, behavioural and sleep disorders and neuroblastoma.
The most efficient methods for detecting this tumour are whole-body magnetic resonance imaging with gadolinium injection or helicoidal scanning centred on the paravertebral region.
www.orpha.net /static/GB/opsoclonus_myoclonus_syndrome.html   (148 words)

  
 oms
Opsoclonus Myoclonus is a rare neurological disorder characterized by unsteady gait, tremor (rhythmic, involuntary motions of the limbs during voluntary movements), myoclonus(brief, shock-like muscle spasms), and opsoclonus(irregular, rapid, horizontal and vertical eye movements).
Opsoclonus Myoclonus Syndrome (OMS), O.M.S, Opsoclonus Myoclonus Ataxia (OMA),Kinsbourne syndrome, Myoclonic Encephalopathy of infants, Dancing Eyes-Dancing Feet syndrome, Dancing Eyes syndrome
About half of all cases are associated with Neuroblastoma and most of the others are suspected to be associated with an undetected Neuroblastoma.
www.brownemily.com /oms.html   (198 words)

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