*  Vestibular rehabilitation therapy: review of indications, mechanisms, and key exercises.

... is an exercise-based treatment program designed to promote vestibular adaptation and substitution. The goals of VRT are 1) to ... It is not always possible for the physician to determine whether the patient's complaints are due to stable vestibular disease ... The overall mechanisms of recovery from vestibular lesions are vestibular adaptation and vestibular substitution. The ... Vestibular function after acute vestibular neuritisRestor Neurol NeurosciYear: 201028374620086281. 13. Kim HA,Hong JH,Lee H,Yi ...

*  Vestibular Rehabilitation for Patients With Fall-related Wrist Fractures - Full Text View - ClinicalTrials.gov

Vestibular rehabilitation, twice a week for 9 weeks. Other: Vestibular rehabilitation The intervention program comprises of ... Vestibular asymmetry. Vestibular rehabilitation. Fall-related wrist fractures. Patients 50 years or older. ... The aim of this study is therefore to find out if vestibular rehabilitation can have any effect on vestibular function among ... Vestibular rehabilitation programs were first developed in the forties, originally used for peripheral vestibular disorder, in ...

*  How do you treat vestibular disease in dogs? | Reference.com

Treatment of vestibular disease in dogs is a combination of treating both the symptoms of the condition and any underlying ... Treatment of vestibular disease in dogs is a combination of treating both the symptoms of the condition and any underlying ... Vestibular disease in dogs is usually idiopathic, meaning its cause is unknown. Some potential causes include circulation or ... Vestibular disease may be prevented by avoiding head trauma and the overuse of certain medications. Neomycin and aminoglycoside ...

*  Resources

VESTIBULAR DISORDERS ASSOCIATION SEEKS TO "DEFEAT DIZZINESS" DURING BALANCE AWARENESS WEEK. PORTLAND, OR - The Vestibular ... Hearing loss is almost twice as common in adults with diabetes compared to those who do not have the disease, according to a ... The vestibular system includes the parts of the inner ear and brain that process the sensory information involved with ... VEDA invites everyone to participate in Balance Awareness Week - go to www.vestibular.org/BAW to learn more about how you can ...

*  Recovery of Visual Acuity in People With Vestibular Deficits - Full Text View - ClinicalTrials.gov

Autoimmune Diseases of the Nervous System. Demyelinating Diseases. Peripheral Nervous System Diseases. Neuromuscular Diseases. ... Ear Diseases. Otorhinolaryngologic Diseases. Otorhinolaryngologic Neoplasms. Cranial Nerve Diseases. Nervous System Diseases. ... Vestibular Neuronitis Vestibular Neuronitis, Bilateral Vestibular Schwannoma Other: Control exercises Other: gaze stabilization ... Patient had to have either a unilateral vestibular or bilateral vestibular hypofunction defined as follows: Unilateral ...


... www.chiro.org/research/ABSTRACTS/Vestibular_Diseases.shtml ... Disorders of the Craniovertebral Joints in Vestibular Diseases ... Craniovertebral Joints in Vestibular Diseases This section was compiled by Frank M. Painter, D.C.. Send all comments or ... Two of the 28 patients showed persistent relief of symptoms and normalisation of cervical motility whereas the vestibular ... One patient with persistent vestibular dysfunction showed recurrent malfunction of the upper cervical spine and vertigo. In our ...

*  Vestibular Diseases Global Clinical Trials Review, H2, 2015

2015 Vestibular Diseases Global Clinical Trials Review, H2, 2015 Summary GlobalData's clinical trial report, ... Vestibular Diseases Global Clinical Trials Review, H2, 2015. Summary. GlobalData's clinical trial report, "Vestibular Diseases ... Unaccomplished Trials of Vestibular Diseases*Table Vestibular Diseases Therapeutics, Global, Withdrawn Clinical Trials, 2015* ... Top Companies Participating in Vestibular Diseases Therapeutics Clinical Trials*Table Figure 19: Vestibular Diseases ...

*  Diagnosis and Treatment of Vestibular Disease - WSAVA2013 - VIN

... can lead to peripheral vestibular disease. You will encounter acute to peracute idiopathic vestibular disease in both dogs and ... So, if you have a patient with clinical signs of central vestibular disease and the head tilt is on the opposite side of where ... peripheral vestibular disease, and that both resting nystagmus and veering/leaning to one side were significantly more common ... The most common cause of peripheral vestibular disease in dogs and cats is otitis media/interna. Toxins and trauma are ...

*  Depersonalisation/derealisation symptoms in vestibular disease | Journal of Neurology, Neurosurgery & Psychiatry

In vestibular disease, frequent experiences of derealisation may occur because distorted vestibular signals mismatch with the ... derealisation symptoms in patients with peripheral vestibular disease and experimentally to induce these symptoms by vestibular ... Methods: 121 healthy subjects and 50 patients with peripheral vestibular disease participated in the study. For comparison with ... Feelings of unreality can be evoked by disorienting vestibular stimulation.. Objective: To identify the prevalence of ...

*  Go to Central vestibular disease.

Central vestibular disease. Clinical signs similar to peripheral vestibular disease but with associated depressed mental status ... Soft tissue surgery refers to any type of surgery for treatment of diseases which are not orthopaedic or neurologic. As such, ...

*  Vestibular Disease

... occurs when the nerves have difficulty performing these functions. There are two types of vestibular disease ... How is vestibular disease treated? To diagnose vestibular disease, the veterinarian carefully performs diagnostic tests, ... with peripheral vestibular disease being more common. Peripheral vestibular disease is caused by disorders of the inner ear ( ... Any animal with a vestibular system can suffer from vestibular disease; this ranges from fish and birds to dogs and cats. A ...

*  Vestibular Disease because of ear infections

My rescued bulldog has two bad ear infections which the vet said has contributed to Vestibular Disease. He hangs to the right ... My rescued bulldog has two bad ear infections which the vet said has contributed to Vestibular Disease. He hangs to the right ... Has anyone had experience with this disease. I was wondering how long it took to regain balance?. ...

*  Health Info | German Shepherd Rescue of New England

Our veterinarian diagnosed his problem as vestibular disease. What causes this disease and how serious is it? Click here to ... Vestibular Disease FAQ and a personal story from one of our members: Our old dog suddenly became dazed and confused, staggering ... Lyme Disease This is very common in New England. Dogs get Lyme disease from a tick that passes bacteria into the animal's ... Map of Lyme Disease This interactive map shows Lyme and Heartworm throughout the US. Take a look at how MA stacks up to the ...

*  Library | Veterinarians Baltimore, MD | Cat Hospital at Towson

Vestibular Disease in Cats. Vestibular disease in cats is a condition in which a cat suddenly develops incoordination, falling ... One of our greatest frustrations occurs when a cat develops an infectious disease against which it has been vaccinated. There ... Primary vaccination is essential in order to prevent the return of the once common infectious diseases that caused high levels ...

*  Using Positron Emission Tomography to Predict Intracranial Tumor Growth in Neurofibromatosis Type II Patients - Full Text View ...

Nervous System Diseases. Neurofibromatoses. Neurofibroma. Vestibular Diseases. Neurofibromatosis 2. Nerve Sheath Neoplasms. ... Peripheral Nervous System Diseases. Neuromuscular Diseases. Labyrinth Diseases. Ear Diseases. Otorhinolaryngologic Diseases. ... Neurodegenerative Diseases. Genetic Diseases, Inborn. Peripheral Nervous System Neoplasms. Nervous System Neoplasms. ... Most people with NF2 develop vestibular schwannomas, or tumors on the hearing and balance nerves. As they grow, vestibular ...

*  Effectiveness of Osteopathic Manipulative Treatment (OMT) and Vestibular Rehabilitation Therapy (VRT) in Individuals With...

Vestibular Diseases. Ear Diseases. Otorhinolaryngologic Diseases. Neurologic Manifestations. Nervous System Diseases. Signs and ... Participants will receive Vestibular Rehabilitation Therapy (VRT), which includes balance exercises in sitting and standing ... Other: Vestibular Rehabilitation Therapy (VRT) Participants categorized as having a peripheral motion hypersensitivity will ... Other: Vestibular Rehabilitation Therapy (VRT) Participants categorized as having a peripheral motion hypersensitivity will ...

*  Efficacy of Vitamin D and Calcium Supplementation on the Prevention of Recurrences in BPPV - Full Text View - ClinicalTrials.gov

Disease Attributes. Pathologic Processes. Vestibular Diseases. Labyrinth Diseases. Ear Diseases. Otorhinolaryngologic Diseases ... Nervous System Diseases. Signs and Symptoms. Sensation Disorders. Vitamins. Vitamin D. Ergocalciferols. Cholecalciferol. ...

*  Effectiveness of the Epley Manoeuvre Performed in Primary Care to Treat Benign Paroxysmal Positional Vertigo - Full Text View -...

Vestibular Diseases. Labyrinth Diseases. Ear Diseases. Otorhinolaryngologic Diseases. Neurologic Manifestations. Nervous System ... Previous or current diagnoses of labyrinth's diseases such as Meniere's disease, labyrinthitis or vestibular neuronitis. ... Condition or disease Intervention/treatment Benign Positional Paroxysmal Vertigo Procedure: PROCEDURE: EPLEY MANOEUVRE ... Paget's disease, morbid obesity, ankylosing spondylitis, severe lumbar dysfunction and spinal cord injuries. ...

*  Effects of Prismatic Spectacle Lenses on Symptoms of Dizziness, Headache and Anxiety as Caused by Vertical Heterophoria - Full...

Nervous System Diseases. Signs and Symptoms. Sensation Disorders. Vestibular Diseases. Labyrinth Diseases. Ear Diseases. ... Genetic and Rare Diseases Information Center resources: Ocular Motility Disorders Motor Neuro-ophthalmic Disorders ...

*  Vestibular Rehabilitation and Dizziness - Full Text View - ClinicalTrials.gov

Nervous System Diseases. Signs and Symptoms. Vestibular Diseases. Labyrinth Diseases. Ear Diseases. Otorhinolaryngologic ... Dizziness is often related to vestibular disease which is treated effectively with vestibular exercises. Successful management ... There are parallels between the effects of age-related versus disease-related loss of vestibular function - in complaints of ... Vestibular Rehabilitation and Dizziness (DZO). This study is ongoing, but not recruiting participants. ...

*  Search of: Recruiting, Not yet recruiting, Available Studies | 'Hearing Disorders' - List Results - ClinicalTrials.gov

Vestibular Disease. Observational. *National Institute on Deafness and Other Communication Disorders (NIDCD) ...

*  Wiley: 100 Top Consultations in Small Animal General Practice - Peter Hill, Sheena Warman, Geoff Shawcross

Chapter 86 Vestibular disease 322. Sheena Warman. Section 14 Behavioural problems. Chapter 87 The aggressive dog 327. Jon Bowen ... Organized by presenting sign (diarrhoea, itching) or disease (diabetes mellitus, pancreatitis), and with colour illustration ... Chapter 17 Diagnosing and treating skin diseases caused by ectoparasites 66. Peter Hill ...

*  Pilot Study of Minocycline in Huntington's Disease - Tabular View - ClinicalTrials.gov

History of vestibular disease. *Subjects with underlying hematologic, hepatic or renal disease ... Huntington Disease. Intervention ICMJE *Drug: minocycline Minocycline: Oral; minocycline 100 mg capsules administered twice a ... Pilot Study of Minocycline in Huntington's Disease. Official Title ICMJE A Multi-Center, Double-Blind, Pilot Study of ... We will measure the effect of minocycline on HD by measuring the change in Huntington's disease symptoms.. ...

*  Granulomatous meningoencephalitis - Wikipedia

Symptoms of brainstem and central vestibular disease predominate. Steroid-responsive meningoencephalitis is any noninfectious ... The disease is bilateral. Ocular GME is considered to be an extension of CNS disease. The blood vessels of the posterior ... The disease is more common in female toy dogs of young and middle age. It has a rapid onset. The lesions of GME exist mainly in ... The disease may be inherited in Pugs and Maltese and has been diagnosed in other breeds as well (Yorkies, Chihuahuas). It ...

*  Expert Answers from Hearing Healthcare Providers

Maintaining good cardiovascular health and controlling chronic diseases as well, such as diabetes, can preserve ... primary care physician should be notified and you should request a referral to see an audiologist who specializes in vestibular ...

(1/298) 3D MRI of the membranous labyrinth. An age related comparison of MR findings in patients with labyrinthine fibrosis and in persons without inner ear symptoms.

PURPOSE: We compared MRI of the membranous labyrinth in patients with chronic non-neoplastic inner ear disease and MR signs of labyrinthine fibrosis and controls depending on their age, in order to establish whether there were any MR differences regarding patient age groups, control age groups and between the patients and controls themselves. MATERIALS AND METHODS: Clinical ENT examinations as well as a T2* weighted 3D CISS (Constructive Interference in Steady State) sequence with a slice thickness of 0.7 mm were performed. Our collective was subdivided as follows: 0-19 years (10 controls, 3 patients with chronic non-neoplastic inner ear disease), 20-49 years (55 controls, 8 patients), 50 years and older (40 controls, 22 patients). Detectability of labyrinthine structures (e.g. cochlea, vestibule, semicircular canals) and filling defects were evaluated. RESULTS: In the 3 age-groups of the control collective no significant differences were observed in the membranous labyrinth. However differences concerning labyrinthine detectability emerged between controls and patients in both the 20-49 years and 50 years and older age groups. In the patient collective the 3 age groups showed no significant discrepancy in the mean number of lesions. CONCLUSION: Filling defects of the membranous labyrinth on 3D CISS MR images are pathological even in older persons. We would therefore recommend high resolution T2* weighted MRI in the case of suspected labyrinthine fibrosis.  (+info)

(2/298) Pontine lesions mimicking acute peripheral vestibulopathy.

OBJECTIVES: Clinical signs of acute peripheral vestibulopathy (APV) were repeatedly reported with pontine lesions. The clinical relevance of such a mechanism is not known, as most studies were biased by patients with additional clinical signs ofbrainstem dysfunction. METHODS: Masseter reflex (MassR), blink reflex (BlinkR), brainstem auditory evoked potentials (BAEPs), and DC electro-oculography (EOG) were tested in 232 consecutive patients with clinical signs of unilateral APV. RESULTS: Forty five of the 232 patients (19.4%) had at least one electrophysiological abnormality suggesting pontine dysfunction mainly due to possible vertebrobasilar ischaemia (22 patients) and multiple sclerosis (eight patients). MassR abnormalities were seen in 24 patients, and EOG abnormalities of saccades and following eye movements occurred in 22 patients. Three patients had BlinkR-R1 abnormalities, and one had delayed BAEP waves IV and V. Clinical improvement was almost always (32 of 34 re-examined patients) associated with improvement or normalisation of at least one electrophysiological abnormality. Brain MRI was done in 25 of the 44 patients and confirmed pontine lesions in six (two infarcts, three inflammations, one tumour). CONCLUSIONS: Pontine dysfunction was suggested in 45 of 232 consecutive patients with clinical signs of APV on the basis of abnormal electrophysiological findings, and was mainly attributed to brainstem ischaemia and multiple sclerosis. The frequency of pontine lesions mimicking APV is underestimated if based on MRI established lesions only.  (+info)

(3/298) EMG responses to free fall in elderly subjects and akinetic rigid patients.

OBJECTIVES: The EMG startle response to free fall was studied in young and old normal subjects, patients with absent vestibular function, and patients with akinetic-rigid syndromes. The aim was to detect any derangement in this early phase of the "landing response" in patient groups with a tendency to fall. In normal subjects the characteristics of a voluntary muscle contraction (tibialis anterior) was also compared when evoked by a non-startling sound and by the free fall startle. METHODS: Subjects lay supine on a couch which was unexpectedly released into free fall. Latencies of multiple surface EMG recordings to the onset of free fall, detected by a head mounted linear accelerometer, were measured. RESULTS AND CONCLUSIONS: (1) EMG responses in younger normal subjects occurred at: sternomastoid 54 ms, abdominals 69 ms, quadriceps 78 ms, deltoid 80 ms, and tibialis anterior 85 ms. This pattern of muscle activation, which is not a simple rostrocaudal progression, may be temporally/spatially organised in the startle brainstem centres. (2) Voluntary tibialis EMG activation was earlier and stronger in response to a startling stimulus (fall) than in response to a non-startling stimulus (sound). This suggests that the startle response can be regarded as a reticular mechanism enhancing motor responsiveness. (3) Elderly subjects showed similar activation sequences but delayed by about 20 ms. This delay is more than can be accounted for by slowing of central and peripheral motor conduction, therefore suggesting age dependent delay in central processing. (4) Avestibular patients had normal latencies indicating that the free fall startle can be elicited by non-vestibular inputs. (5) Latencies in patients with idiopathic Parkinson's disease were normal whereas responses were earlier in patients with multiple system atrophy (MSA) and delayed or absent in patients with Steele-Richardson-Olszewski (SRO) syndrome. The findings in this patient group suggest: (1) lack of dopaminergic influence on the timing of the startle response, (2) concurrent cerebellar involvement in MSA may cause startle disinhibition, and (3) extensive reticular damage in SRO severely interferes with the response to free fall.  (+info)

(4/298) Sympathetic contralateral vestibulopathy after unilateral zoster oticus.

A unique case of initially right sided varicella zoster induced Ramsay-Hunt syndrome with complete vestibular loss is reported. The patient subsequently developed deficits of the left vestibule 5 months later. An autoimmune pathogenesis of the left vestibular failure rather than bilateral varicella zoster infection was suggested by the following data: (1) no evidence of vesicular eruptions on the left auricle and the virtual absence of antiviral antibodies after onset of bilateral vestibulopathy; (2) prompt response of the left vestibule to immunosuppressive therapy with corticosteroids; and (3) presence of atypical nervous tissue specific autoantibodies against a 45 kDa protein.  (+info)

(5/298) Probability of bilateral disease in people presenting with a unilateral vestibular schwannoma.

BACKGROUND: Some 4%-5% of those who develop vestibular schwannomas have neurofibromatosis type 2 (NF2). Although about 10% of these patients present initially with a unilateral vestibular schwannoma, the risk for a patient with a truly sporadic vestibular schwannoma developing contralateral disease is unknown. METHODS: A United Kingdom survey of 296 patients with NF2 was reviewed for laterality of vestibular schwannoma at presentation and the presence of other NF2 related features. The time to presentation of bilateral disease was calculated for patients presenting with a unilateral tumour. Mutation analysis of the NF2 gene was carried out on all available cases presenting initially with unilateral disease. RESULTS: Of 240 patients with NF2 with vestibular schwannomas, 45 (18%; 32 sporadic, 13 familial) had either a unilateral tumour or delay in detection between the first and contralateral tumours. Among those tested for NF2 mutations, eight of 27 and nine of 13 were identified among sporadic and familial cases respectively. Sporadic cases showed a high female to male ratio and 19 of 32 have not as yet developed a contralateral tumour (mean 4.1 years after diagnosis of the first). Thirteen of 32 sporadic patients developed a contralateral tumour (mean 6.5 years after the first tumour diagnosis, range 0-22 years) compared with 11 of 13 familial patients (mean delay 5 years, range 0-16 years). Seven of the 45 patients had neither a family history of NF2 nor evidence of related tumours at initial presentation (six before the age of 35 years). CONCLUSION: The risk of patients with sporadic unilateral vestibular schwannomata developing a contralateral tumour in the absence of family history or other features of NF2 is low, but those presenting with other neurogenic tumours in addition to vestibular schwannoma are at high risk of harbouring an NF2 mutation in at least a proportion of their somatic cells.  (+info)

(6/298) Postural characteristics of diabetic neuropathy.

OBJECTIVE: To explore the posturographic correlates of diabetic neuropathy by comparing the performances of three groups of diabetic patients (severe, moderate, and absent neuropathy) with those of normal subjects and four clinical control groups. RESEARCH DESIGN AND METHODS: Using the Interactive Balance System (Tetrax, Ramat Gan, Israel), based on the assessment of the interaction of vertical pressure fluctuations on four independent platforms, one for each heel and toe part, respectively, posturographic examinations were given to 28 diabetic patients (8 with severe, 12 with moderate, and 8 with no peripheral neuropathy), 30 normal control subjects, and a clinical control group of 52 patients (14 with stage II Parkinson's disease, 13 with brain damage, 7 with whiplash, and 19 with peripheral vestibular pathology). The following posturographic parameters were evaluated; 1) general stability; 2) Fourier analysis showing patterns of sway intensity within eight frequency bands between 0.1 and 3 Hz; 3) weight distribution; 4) synchronization of sway; and 5) performance patterns for eight positions, requiring closure of eyes and standing on an elastic surface, as well as left, right, back, and downward head turns. RESULTS: For positions with closed eyes, diabetic patients with severe and moderate neuropathy were significantly less stable than normal subjects and diabetic patients without neuropathy, but diabetic patients with severe and moderate neuropathy turned out to be as equally unstable as clinical control subjects. However, for sway intensity within the band of 0.5 to 1.00 Hz on positions with lateral head turn with occluded vision, neuropathic diabetic patients performed significantly worse than did both normal and clinical control subjects. The same posturographic parameter also differed significantly between normal subjects and diabetic patients without neuropathy. CONCLUSIONS: As reported in previous studies, general instability in diabetic neuropathy is not a sufficiently characteristic correlate of the syndrome. On the other hand, spectral analysis of sway on stressful positions involving head turning appears to differentiate diabetic neuropathy from other disorders involving postural disturbances.  (+info)

(7/298) A new mouse insertional mutation that causes sensorineural deafness and vestibular defects.

This article describes a new recessive insertional mutation in the transgenic line TgN2742Rpw that causes deafness and circling behavior in mice. Histologic analysis revealed virtually complete loss of the cochlear neuroepithelium (the organ of Corti) in adult mutant mice. In association with the neuroepithelial changes, there is a dramatic reduction of the cochlear nerve supply. Adult mutants also show morphological defects of the vestibular apparatus, including degeneration of the saccular neuroepithelium and occasional malformation of utricular otoconia. Audiometric evaluations demonstrated that the mice displaying the circling phenotype are completely deaf. Molecular analysis of this mutant line revealed that the transgenic insertion occurred without creating a large deletion of the host DNA sequences. The mutant locus was mapped to a region on mouse chromosome 10, where other spontaneous, recessive mutations causing deafness in mice have been mapped.  (+info)

(8/298) Influence of surgical plugging on horizontal semicircular canal mechanics and afferent response dynamics.

Mechanical occlusion of one or more of the semicircular canals is a surgical procedure performed clinically to treat certain vestibular disorders and used experimentally to assess individual contributions of separate canals and/or otoliths to vestibular neural pathways. The present experiments were designed to determine if semicircular canal afferent nerve modulation to angular head acceleration is blocked by occlusion of the endolymphatic duct, and if not, what mechanism(s) might account for a persistent afferent response. The perilymphatic space was opened to gain acute access to the horizontal canal (HC) in the oyster toadfish, Opsanus tau. Firing rate responses of HC afferents to sinusoidal whole-body rotation were recorded in the unoccluded control condition, during the process of duct occlusion, and in the plugged condition. The results show that complete occlusion of the duct did not block horizontal canal sensitivity; individual afferents often exhibited a robust firing rate modulation in response to whole-body rotation in the plugged condition. At high stimulus frequencies (about >8 Hz) the average sensitivity (afferent gain; spikes/s per degrees /s of head velocity) in the plugged condition was nearly equal to that observed for unoccluded controls in the same animals. At low stimulus frequencies (about <0.1 Hz), the average sensitivity in the plugged condition was attenuated by more than two orders of magnitude relative to unoccluded controls. The peak afferent firing rate for sinusoidal stimuli was phase advanced approximately 90 degrees in plugged canals relative to their control counterparts for stimulus frequencies approximately 0.1-2 Hz. Data indicate that afferents normally sensitive to angular velocity in the control condition became sensitive to angular acceleration in the plugged condition, whereas afferents sensitive to angular acceleration in the control condition became sensitive to the derivative of acceleration or angular jerk in the plugged condition. At higher frequencies (>8 Hz), the phase of afferents in the plugged condition became nearly equal, on average, to that observed in controls. A three-dimensional biomechanical model of the HC was developed to interpret the residual response in the plugged condition. Labyrinthine fluids were modeled as incompressible and Newtonian; the membranous duct, osseous canal and temporal bone were modeled as visco-elastic materials. The predicted attenuation and phase shift in cupular responses were in close agreement with the observed changes in afferent response dynamics after canal plugging. The model attributes the response of plugged canals to labyrinthine fluid pressure gradients that lead to membranous duct deformation, a spatial redistribution of labyrinthine fluids and cupular displacement. Validity of the model was established through its ability to predict: the relationship between plugged canal responses and unoccluded controls (present study), the relationship between afferent responses recorded during mechanical indentation of the membranous duct and physiological head rotation, the magnitude and phase of endolymphatic pressure generated during HC duct indentation, and previous model results for cupular gain and phase in the rigid-duct case. The same model was adjusted to conform to the morphology of the squirrel monkey and of the human to investigate the possible influence of canal plugging in primates. Membranous duct stiffness and perilymphatic cavity stiffness were identified as the most salient model parameters. Simulations indicate that canal plugging may be the most effective in relatively small species having small labyrinths, stiff round windows, and stiff bony perilymphatic enclosures.  (+info)


  • One thing to keep in mind is that there is a peripheral vestibular apparatus on each side of the head for a reason. (vin.com)
  • Consider that damaging or removing the left peripheral vestibular apparatus is the same as exciting the right side. (vin.com)
  • In a patient with a left-sided peripheral vestibular lesion, you would then expect a fast phase nystagmus away from the lesion side (i.e., to the right), a head tilt to the left (same side as the lesion), and potentially falling/rolling to the left side as well. (vin.com)
  • To identify the prevalence of depersonalisation/derealisation symptoms in patients with peripheral vestibular disease and experimentally to induce these symptoms by vestibular stimulation. (bmj.com)
  • 121 healthy subjects and 50 patients with peripheral vestibular disease participated in the study. (bmj.com)
  • Clinical signs similar to peripheral vestibular disease but with associated depressed mental status (e.g. poorly interactive and disorientated) and postural deficits i.e. loss of strength and proprioception. (fitzpatrickreferrals.co.uk)
  • There are two types of vestibular disease, peripheral and central, with peripheral vestibular disease being more common. (dansvilleanimalhospital.com)
  • Peripheral vestibular disease is caused by disorders of the inner ear (the body's balance center), whereas central vestibular disease arises from balance issues within the brain. (dansvilleanimalhospital.com)
  • Paroxysmal oscillopsia can be due to an abnormal hyperactivity in the peripheral ocular or vestibular system. (wikipedia.org)
  • The main function behind repeating a combination of head and eye movements, postural changes and walking is that through this repetition, compensatory changes for the dysfunctions arising from peripheral vestibular structures may be promoted in the central vestibular system (brainstem and cerebellum). (wikipedia.org)
  • However, the most common subcategories can be broken down as follows: 40% peripheral vestibular dysfunction, 10% central nervous system lesion, 15% psychiatric disorder, 25% presyncope/disequilibrium, and 10% nonspecific dizziness. (wikipedia.org)


  • For vestibular axons, connections are made here with the vestibular nuclei (on either side of the 4th ventricle) as well as the cerebellum. (vin.com)
  • Paradoxical vestibular syndrome refers to the phenomenon in some patients with central vestibular lesions (typically involving the cerebellum) in which the head tilt is away from the lesion side and the fast phase of the nystagmus is directed toward the lesion side. (vin.com)
  • together, these two structures compose the vestibular part of the cerebellum. (wikipedia.org)
  • The first and third zones of the flocculus project to the superior vestibular nucleus, the second and fourth zone projects to the medial vestibular nucleus, and the fifth zone projects to the interposed posterior nucleus, a part of the cerebellum. (wikipedia.org)
  • The caudal half of the flocculus receives mossy fiber projections mainly from the vestibular system and tegmental pontine reticular nucleus, an area within the floor of the midbrain that affects the axonal projections or images received by the cerebellum. (wikipedia.org)
  • Signals from the vestibular system also project to the cerebellum (where they are used to keep the VOR effective, a task usually referred to as learning or adaptation) and to different areas in the cortex. (wikipedia.org)


  • One patient with persistent vestibular dysfunction showed recurrent malfunction of the upper cervical spine and vertigo. (chiro.org)
  • Cognitive dysfunction (disorientation) may occur with vestibular disorders. (wikipedia.org)
  • Vestibular dysfunction has been shown to adversely affect processes of attention and increased demands of attention can worsen the postural sway associated with vestibular disorders. (wikipedia.org)


  • Apart from dizziness, caloric stimulation induced depersonalisation/derealisation symptoms which healthy subjects denied ever experiencing before, while patients reported that the symptoms were similar to those encountered during their disease. (bmj.com)
  • The purpose of this study is to determine whether vestibular exercises provide added benefit to balance rehabilitation in older adults with dizziness and normal vestibular function. (clinicaltrials.gov)
  • Vestibular rehabilitation therapy is a highly effective way to substantially reduce or eliminate residual dizziness from labyrinthitis. (wikipedia.org)
  • In either case an acute head injury will often result in dizziness and a sudden loss of vestibular function. (wikipedia.org)


  • Some cases of vestibular neuronitis are thought to be caused by an infection of the vestibular ganglion by the herpes simplex type 1 virus. (wikipedia.org)
  • The treatment for vestibular neuronitis depends on the cause. (wikipedia.org)
  • Vestibular neuronitis - an infection of the vestibular nerve, generally viral, causing vertigo Cochlear Neuronitis - an infection of the Cochlear nerve, generally viral, causing sudden deafness but no vertigo Trauma - Injury to the skull may cause either a fracture or a concussion to the organ of balance. (wikipedia.org)


  • Stimulation of one side of the vestibular apparatus will also lead to excitation of extensor muscles on the side being stimulated. (vin.com)
  • He received the 1914 Nobel Prize in Physiology or Medicine for his work on the physiology and pathology of the vestibular apparatus. (wikipedia.org)
  • It complements the information provided by caloric testing and other forms of inner ear (vestibular apparatus) testing. (wikipedia.org)
  • 1964) and subsequently Townsend and Cody, provided evidence for a short latency response in posterior neck muscles in response to loud clicks that appeared to be mediated by activation of the vestibular apparatus. (wikipedia.org)
  • Other methods of activating the vestibular apparatus have been developed, including taps to the head, bone vibration and short duration electrical stimulation. (wikipedia.org)


  • Vestibular disease in dogs is usually idiopathic, meaning its cause is unknown. (reference.com)
  • Pug Dog encephalitis (PDE) is an idiopathic inflammatory disease primarily affecting the prosencephalon (forebrain and thalamus). (wikipedia.org)
  • This is seen in cats, and is the proposed cause for feline ischemic encephalopathy and a suggestive causative agent of feline idiopathic vestibular disease. (wikipedia.org)


  • Labyrinthitis, also known as vestibular neuritis, is the inflammation of the inner ear. (wikipedia.org)
  • Vestibular neuritis affects approximately 35 per million people per year. (wikipedia.org)
  • Acute localized ischemia of these structures also may be an important cause, especially in children, vestibular neuritis may be preceded by symptoms of a common cold. (wikipedia.org)
  • It has diagnostic applications in Ménière's disease, vestibular neuritis, otosclerosis as well as central disorders such as Multiple Sclerosis. (wikipedia.org)


  • In our opinion chiropractic treatment is mandatory for the therapy of patients with vestibular affections and functional disorders of the craniovertebral joints. (chiro.org)
  • Some vestibular pathologies have symptoms that are comorbid with mental disorders. (wikipedia.org)
  • Mental Disorders Comorbid with Vestibular Pathology. (wikipedia.org)
  • Diseases that affect the vestibular system such as gait disorders often impair the initiation of a movement. (wikipedia.org)


  • Symptoms of brainstem and central vestibular disease predominate. (wikipedia.org)

symptoms of vertigo

  • However, symptoms of vertigo can be treated in the same way as other vestibular dysfunctions with vestibular rehabilitation. (wikipedia.org)
  • These symptoms are not symptoms of Meniere's disease per se, but rather are side effects resulting from failure of the organ of hearing and balance, and include nausea, vomiting, and sweating-which are typically symptoms of vertigo, and not of Ménière's. (wikipedia.org)
  • The corresponding subtypes of MD are called vestibular MD, showing symptoms of vertigo, and cochlear MD, showing symptoms of hearing loss and tinnitus. (wikipedia.org)

Rehabilitation Therapy

  • Western University of Health Sciences is seeking men and women to participate in a study on the effectiveness of Osteopathic Manipulative Treatment (OMT) and Vestibular Rehabilitation Therapy (VRT) in patients with vertigo. (clinicaltrials.gov)
  • The purpose of this study is to examine the efficacy of OMT in the treatment of individuals with vertigo, alone and in combination with Vestibular Rehabilitation Therapy (VRT). (clinicaltrials.gov)

inner ear

  • The vestibular evoked myogenic potential (VEMP or VsEP) is a neurophysiological assessment technique used to determine the function of the otolithic organs (utricle and saccule) of the inner ear. (wikipedia.org)
  • Ménière's disease (MD) is a disorder of the inner ear that is characterized by episodes of feeling like the world is spinning (vertigo), ringing in the ears (tinnitus), hearing loss, and a fullness in the ear. (wikipedia.org)
  • The initial triggers of Ménière's disease are not fully understood, with a variety of potential inflammatory causes that lead to endolymphatic hydrops (EH), a distension of the endolymphatic spaces in the inner ear. (wikipedia.org)
  • Additionally, in fully developed MD the balance system (vestibular system) and the hearing system (cochlea) of the inner ear are affected, but there are cases where EH affects only one of the two systems strongly enough to cause symptoms. (wikipedia.org)


  • The vestibular system is responsible for the maintenance of posture and balance. (vin.com)
  • What is most important for purposes of clinical usage is that you understand the concept of how the vestibular (primarily) and auditory system operates. (vin.com)
  • In the normal patient, rotating the head to one side will stimulate the vestibular system on that side. (vin.com)
  • Vestibular adaptation and substitution exercises were designed originally based on the error signals (retinal slip) that induce changes in gain in the vestibular system and will be performed by the experimental group (GS). (clinicaltrials.gov)
  • Granulomatous meningoencephalitis (GME) is an inflammatory disease of the central nervous system (CNS) of dogs and, rarely, cats. (wikipedia.org)
  • At its base, the flocculus receives input from the inner ear's vestibular system and regulates balance. (wikipedia.org)
  • however, it receives very little projection from the vestibular system. (wikipedia.org)
  • This hypothesis argues that the flocculus plays a key role in the vestibulo-ocular system, most importantly the ability for the vestibular system to adapt to a shift in the visual field. (wikipedia.org)
  • The vestibular system, in most mammals, is the sensory system that provides the leading contribution to the sense of balance and spatial orientation for the purpose of coordinating movement with balance. (wikipedia.org)
  • The vestibular system sends signals primarily to the neural structures that control eye movements, and to the muscles that keep an animal upright. (wikipedia.org)
  • The brain uses information from the vestibular system in the head and from proprioception throughout the body to understand the body's dynamics and kinematics (including its position and acceleration) from moment to moment. (wikipedia.org)
  • Since the world is three-dimensional, the vestibular system contains three semicircular canals in each labyrinth. (wikipedia.org)
  • Ocular stability is maintained by three different ocular motor systems The fixation system The visuo-vestibular stabilizing system Neural integrator 1. (wikipedia.org)
  • It derives its name from the labyrinths that house the vestibular system, which senses changes in head position. (wikipedia.org)
  • The vestibular system is a set of sensory inputs consisting of three semicircular canals, sensing changes in rotational motion, and the otoliths, sensing changes in linear motion. (wikipedia.org)
  • The brain combines visual cues with sensory input from the vestibular system to determine adjustments required to retain balance. (wikipedia.org)
  • The vestibular system also relays information on head movement to the eye muscle, forming the vestibulo-ocular reflex to retain continuous visual focus during motion. (wikipedia.org)
  • These exercises function by challenging the vestibular system. (wikipedia.org)
  • The vestibular system helps a person maintain: balance, visual fixation, posture, and lower muscular control. (wikipedia.org)
  • Located within the membranous labyrinthine walls of the vestibular system are approximately 67,000 hair cells in total. (wikipedia.org)
  • Balance is the result of several body systems working together: the visual system (eyes), vestibular system (ears) and proprioception (the body's sense of where it is in space). (wikipedia.org)


  • Viral diseases in dogs can be serious, especially in kennels. (wikipedia.org)
  • Other canine viral diseases of note include herpesvirus and influenza. (wikipedia.org)


  • Bárány theorized that the endolymph was sinking when it was cool and rising when it was warm, and thus the direction of flow of the endolymph was providing the proprioceptive signal to the vestibular organ. (wikipedia.org)
  • Problems with balance can occur when there is a disruption in any of the vestibular, visual, or proprioceptive systems. (wikipedia.org)


  • The vestibular nuclei give rise to descending vestibulospinal tracts, the most important of which clinically is the lateral vestibulospinal tract (supplied primarily via lateral vestibular nuclei). (vin.com)


  • 2. The visuo-vestibular stabilizing systems and their deficits The vestibular and visual ocular stabilizing systems interact together in order to maintain the image of the visual scene steady on the retina during a head and body displacement situation. (wikipedia.org)


  • Vestibular disease occurs when the nerves have difficulty performing these functions. (dansvilleanimalhospital.com)
  • One of our greatest frustrations occurs when a cat develops an infectious disease against which it has been vaccinated. (catdoc.com)
  • Respiratory disease results when larval migration occurs through the trachea, pharynx, diaphragm, or lungs. (wikipedia.org)


  • However, the cause of this condition is not fully understood, and in fact many different viruses may be capable of infecting the vestibular nerve. (wikipedia.org)
  • In 1992 Colebatch and Halmagyi reported a patient with a short latency response to loud clicks studied using a modified recording site (the sternocleidomastioid muscles: SCM) and which was abolished by selective vestibular nerve section. (wikipedia.org)


  • Blocq's disease was first considered by Paul Blocq (1860-1896), who described this phenomenon as the loss of memory of specialized movements causing the inability to maintain an upright posture, despite normal function of the legs in the bed. (wikipedia.org)


  • From 1984 until 1988 Minor then completed a research fellowship in vestibular neurophysiology at the University of Chicago Department of Pharmacological and Physiological Sciences, under the supervision of Jay M. Goldberg. (wikipedia.org)
  • In the third paper published by Paul Blocq, he was trying to determine the neurophysiology behind this disease by relating the cerebral cortex (the decision making) and the spinal cord (the decision executer). (wikipedia.org)


  • These were: the response occurred ipsilateral to the ear stimulated, the click threshold was high, the response did not depend upon hearing (cochlear function) per se, it scaled in direct proportion to the level of tonic neck contraction, the response was small (although large compared to many evoked potentials) and required averaging, and only the initial positive-negative response (p13-n23 by latency) was actually vestibular-dependent. (wikipedia.org)


  • EH, in turn, is strongly associated with developing MD, but not everyone with EH develops MD: "The relationship between endolymphatic hydrops and Meniere's disease is not a simple, ideal correlation. (wikipedia.org)

sensory input

  • In vestibular disease, frequent experiences of derealisation may occur because distorted vestibular signals mismatch with the other sensory input to create an incoherent frame of spatial reference which makes the patient feel he or she is detached or separated from the world. (bmj.com)


  • Another clinically important vestibular tract is an ascending tract called the medial longitudinal fasciculus (MLF). (vin.com)


  • Ocular GME is considered to be an extension of CNS disease. (wikipedia.org)
  • A change in the magnitude of the vestibulo-ocular reflex due to vestibular disease can also lead to oscillopsia during rapid head movements. (wikipedia.org)
  • A deficit in these vestibular or visual ocular stabilizing systems may result in ocular instability due to pathological jerk nystagmus. (wikipedia.org)
  • In addition to the response in the SCM, similar reflexes can be shown for the masseter and for eye muscles (oVEMPs or OVEMPs = ocular vestibular evoked myogenic potentials). (wikipedia.org)


  • So, if you have a patient with clinical signs of central vestibular disease and the head tilt is on the opposite side of where you have localized the lesion, you should immediately think of this syndrome as a possibility. (vin.com)


  • Twelve patients, ages 18-50, with a clinical or genetic diagnosis of NF2 and harboring at least 3 unoperated intracranial tumors (meningiomas and/or vestibular schwannomas) will participate in this study. (clinicaltrials.gov)
  • An early application was in the diagnosis of superior canal dehiscence a condition in which there can be clinical symptoms and signs of vestibular activation by loud sounds. (wikipedia.org)


  • One of the most common fungal diseases in dogs is ringworm, or dermatophytosis, an infection of the skin, hair, or nails. (wikipedia.org)


  • The disease is bilateral. (wikipedia.org)
  • Recent MRI studies also show that humans with bilateral vestibular damage undergo atrophy of the hippocampus which correlates with their degree of impairment on spatial memory tasks. (wikipedia.org)


  • Experimental verification of "vestibular induced" depersonalisation/derealisation was assessed in 20 patients and 20 controls during caloric irrigation of the labyrinths. (bmj.com)


  • The fast phase going in the direction of the turn (stimulation direction) is really the only thing about vestibular function you need to memorize. (vin.com)
  • Feelings of unreality can be evoked by disorienting vestibular stimulation. (bmj.com)
  • Depersonalisation/derealisation symptoms are both different in quality and more frequent under conditions of non-physiological vestibular stimulation. (bmj.com)


  • There are also common tick-borne bacterial diseases, including Lyme disease, ehrlichiosis, and Rocky Mountain spotted fever. (wikipedia.org)


  • Treatment of vestibular disease in dogs is a combination of treating both the symptoms of the condition and any underlying conditions associated with it. (reference.com)
  • Soft tissue surgery refers to any type of surgery for treatment of diseases which are not orthopaedic or neurologic. (fitzpatrickreferrals.co.uk)
  • Treatment for localized ringworm is not always necessary as the disease is self-limiting, but the cliinical course can be shortened by using topical miconazole or clotrimazole. (wikipedia.org)
  • The research resulting from his observations made surgical treatment of vestibular organ diseases possible. (wikipedia.org)
  • For refining a treatment for Ménière's disease using gentamicin, Minor received the Prosper Ménière Society's gold medal in 2010. (wikipedia.org)


  • Vestibular inputs are also carried through climbing fibers that project into the flocculus, stimulating Purkinje cells. (wikipedia.org)


  • Most people with NF2 develop vestibular schwannomas, or tumors on the hearing and balance nerves. (clinicaltrials.gov)


  • thebelljarxo Marnie's 12 & hearing impaired since I adopted her (side effect of vestibular syndrome)- her ears are less sensitive than ours" (Twitter tweet). (wikipedia.org)
  • Cognitive problems Dementia increases the likelihood of falls Cardiovascular causes Orthostatic hypotension Postprandial hypotension Carotid sinus syndrome Neurocardiogenic syncope- the commonest cause of syncope in A&E patients Cardiac arrhythmias Structural heart disease, such as valvular heart disease Poor lighting due to low luminance of existing lights or lamps, so preventing hazard identification and avoidance. (wikipedia.org)


  • Habituation exercises - movements designed to provoke symptoms and subsequently reduce the negative vestibular response upon repetition. (wikipedia.org)


  • It is a type of balance disorder along with labyrinthitis and Ménière's disease. (wikipedia.org)


  • As they grow, vestibular schwannomas can cause hearing loss and balance problems. (clinicaltrials.gov)
  • Balance and Gait As a result of stroke disease, Parkinsonism, arthritic changes, neuropathy, neuromuscular disease or vestibular disease. (wikipedia.org)


  • Two of the 28 patients showed persistent relief of symptoms and normalisation of cervical motility whereas the vestibular deficit persisted. (chiro.org)

infectious diseases

  • Primary vaccination is essential in order to prevent the return of the once common infectious diseases that caused high levels of fatality in kittens and cats. (catdoc.com)
  • Certain infectious diseases are a concern from a public health standpoint because they are zoonoses (transmittable to humans). (wikipedia.org)
  • These examples are not considered infectious diseases because they do not satisfy Koch's postulates - for example Staphylococcus intermedius, a commonly isolated bacteria from skin infections in dogs, would not cause pyoderma when introduced to a healthy dog. (wikipedia.org)


  • Any movement of the body is detected by the vestibular sensory neurons, and the sensory motor replies by counteracting the movements through the vestibulospinal tracts and exerting action on a group of muscles throughout the body. (wikipedia.org)


  • Vestibular disease may be prevented by avoiding head trauma and the overuse of certain medications. (reference.com)


  • The frequency and severity of symptoms in vestibular patients was significantly higher than in controls. (bmj.com)
  • In domestic dogs, while the acute generalized form of distemper has a high mortality rate, disease duration and severity depends mainly on the animal's age and immune status and virulence of the infecting strain of the virus. (wikipedia.org)


  • Vestibular disease is commonly misdiagnosed as a seizure, stroke, or poisoning. (dansvilleanimalhospital.com)
  • The VsEP is commonly divided into two sections: angular vestibular evoked potentials (VsEPA) and linear vestibular evoked potentials (VsEPL). (wikipedia.org)


  • After it is certain that vestibular disease is the cause of the pet's symptoms, very little can be done. (dansvilleanimalhospital.com)
  • GME is likely second only to encephalitis caused by canine distemper virus as the most common cause of inflammatory disease of the canine CNS. (wikipedia.org)
  • Because lesions resemble those seen in allergic meningoencephalitis, GME is thought to have an immune-mediated cause, but it is also thought that the disease may be based on an abnormal response to an infectious agent. (wikipedia.org)
  • Despite extensive vaccination in many regions, it remains a major disease of dogs, and was the leading cause of infectious disease death in dogs, prior to a vaccine becoming available. (wikipedia.org)
  • The cause of Ménière's disease is unclear but likely involves both genetic and environmental factors. (wikipedia.org)


  • Items permitted discrimination between healthy subjects and vestibular patients in 92% of the cases. (bmj.com)
  • To determine whether FDG and/or FLT uptake correlate with growth rate of meningiomas and Vestibular Schwannomas (VSs) in NF2 patients, and can be used to predict their future growth pattern. (clinicaltrials.gov)
  • One study found that patients who believed their illness was out of their control showed the slowest progression to full recovery, long after the initial vestibular injury had healed. (wikipedia.org)


  • These receptors in include the crista ampullaris, and maculae for vestibular function. (vin.com)
  • The most common early symptoms are related to forebrain disease and include seizures and dementia, and later circling, head tilt, and blindness with normal pupillary light reflexes may be seen. (wikipedia.org)
  • Lyme disease, or borreliosis, is caused by Borrelia burgdorferi and spread by Ixodes pacificus on the West coast of the United States and by I. scapularis (deer tick) in the rest of the U.S. Signs and symptoms include fever, joint swelling and pain, lameness, and swelling of the lymph nodes. (wikipedia.org)
  • Other conditions that may produce similar symptoms include vestibular migraine and transient ischemic attack. (wikipedia.org)


  • There are many possible causes of vestibular disease, though the exact catalyst is often unable to be determined. (dansvilleanimalhospital.com)


  • Vestibular disease in cats is a condition in which a cat suddenly develops incoordination, falling or circling to one side, involuntary darting of the eyes back and forth (nystagmus), a head tilt, and often nausea or vomiting. (catdoc.com)


  • Marnie is especially famous for her permanent head tilt to the left, a result of a brief case of vestibular disease. (wikipedia.org)
  • Marnie's head is permanently tilted to the left (a feature that she is distinctive for) possibly as a result of a brief case of vestibular disease. (wikipedia.org)