1/33. tinnitus as the presenting symptom in a case of Lhermitte-Duclos disease.Dysplastic gangliocytoma or Lhermitte-Duclos disease (LDD) is a hamartomatous malformation of the cerebellar hemisphere that usually presents with signs of increased intracranial pressure or symptoms of cerebellar dysfunction. In this paper, we report a case of LDD presenting with tinnitus, and postulate a probable mechanism for this unusual presentation.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
2/33. Cochlear and vestibular dysfunction resulting from physical exertion or environmental pressure changes.Inner ear damage due to physical exertion or environmental pressure changes has been described only recently. According to Goodhill there are two possible mechanisms of injury: the explosive and the implosive. The former is triggered by increased C.S.F. pressure transmitted to the perilymph space; the latter by increased pressure in the middle ear transmitted to the perilymph space through the two windows. Sudden hearing loss or dizziness, or both, are the main symptoms. The diagnosis will be established by the history, the audiogram, and the electronystagmogram (ENG). The treatment is still controversial. As the formation of a fistula is a real possibility, an exploratory tympanotomy is suggestive on suspected cases. Due to the variety of symptoms every case has to be assessed individually. A detailed history is of utmost importance.- - - - - - - - - - ranking = 7keywords = pressure (Clic here for more details about this article) |
3/33. Improved pituitary function after V-P shunt insertion in pseudotumor cerebri.pseudotumor cerebri is a disease of cerebrospinal fluid pressure regulation. This disease has also been associated with endocrine disorders like Cushing's syndrome, hypoparathyroidism, hypothyroidism, hyperthyroidism and Addison's disease. In this paper we report a 30-year-old male patient with hypoparathyroidism presenting with pseudotumor cerebri and diminished anterior pituitary function that improved after a ventricular-peritoneal (VP) shunt insertion.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
4/33. rupture of the round window membrane.A perilymph leak into the middle ear through a ruptured round window membrane results in the symptoms of hearing loss, tinnitus and vertigo, either singly or in combination. The case histories of thirteen patients with such a fistula are described, these patients having in common a predisposing incident which had led to a rise of C.S.F. pressure. Symptomatology and the results of investigation are analysed and operative technique and results discussed. While it appears that vertigo uniformly responds very satisfactorily to operative treatment the improvement in hearing loss and tinnitus is more difficult to predict.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
5/33. Orthostatic tinnitus: an otological presentation of spontaneous intracranial hypotension.Spontaneous intracranial hypotension (SIH) is a syndrome characterized by orthostatic headache, low cerebrospinal fluid (CSF) pressure without apparent causes for CSF loss, and diffuse pachymeningeal gadolinium enhancement on cranial MRI. Hearing is affected in some patients with SIH. A case of SIH with orthostatic tinnitus is reported. A 51-year-old woman developed a severe headache that was almost completely relieved on recumbency. Cranial MRI with gadolinium infusion showed diffuse enhancement of the dura mater. Radionuclide cisternography demonstrated CSF leaks at the upper and lower thoracic levels. Epidural blood patches at these leak sites alleviated the orthostatic headache, however, orthostatic tinnitus and muffled hearing persisted. Initial audiometry was unremarkable; repeat audiometry performed 6 weeks later demonstrated low-frequency hearing loss in the right ear. Continuous epidural saline infusion for 3 consecutive days was performed; auditory symptoms disappeared 4 weeks thereafter. This case illustrates that orthostatic tinnitus represent intracranial hypotension even in the absence of orthostatic headache. MRI with gadolinium infusion should be carried out in the evaluation of patients with orthostatic tinnitus.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
6/33. Dorntherapy: its effect on electroencephalographic activity in tinnitus patients with craniocervical dysfunction.Dorntherapy was developed in the 1980s by Dieter Dorn, a nonmedical person, to cure his and his family members' vertebral problems. This technique achieves correction of dysfunctions of the vertebrae and joints simply by using natural movements of arms and legs or by applying gentle pressure (thumb) to the spinous process. Various observations suggest that craniocervical dysfunction can lead to tinnitus, thus causing changes in the electroencephalographic patterns. This study demonstrates that the successful application of Dorntherapy induced prominent changes of the electroencephalographic activity. Data analysis revealed a significant increase in the power of the alpha (8-13 Hz) and the alpha2 (9-11 Hz). Besides electrophysiological effects, changes in the quality of tinnitus and in the intensity of the tinnitus were noted. These results suggest that Dorntherapy must be an integral part of any tinnitus therapy.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
7/33. Subarcuate venous malformation causing audio-vestibular symptoms similar to those in superior canal dehiscence syndrome.OBJECTIVE: To present a patient with symptoms similar to those of superior canal dehiscence syndrome due to another cause. STUDY DESIGN: Case report. SETTING: University hospital, tertiary referral center. PATIENT: The 65-year-old woman had suffered for 4 years from hearing loss, tinnitus, and pressure-induced vertigo. INTERVENTION: Audio-vestibular testing, high-resolution computed tomography, and magnetic resonance angiography. MAIN OUTCOME MEASURE: The superior canal dehiscence syndrome is caused by failure of normal postnatal bone development in the middle cranial fossa leading to absence of bone at the most superior part of the superior semicircular canal. The typical features for this syndrome are sound and pressure-induced vertigo with torsional eye movements, pulse synchronous tinnitus and apparent conductive hearing loss in spite of normal middle ear function. We present a patient with very similar symptoms and findings, who instead had a superior canal dehiscence close to the common crus. Neuroradiologic findings suggested that the dehiscence was related to a venous malformation. CONCLUSIONS: Symptoms and findings suggesting superior canal dehiscence syndrome can have a different cause.- - - - - - - - - - ranking = 2keywords = pressure (Clic here for more details about this article) |
8/33. Rare auditory-electophysiology finding in Wilson's disease.Wilson's disease is a rare genetic disease involving the malabsorption of copper by the body. The most common characteristic sign is the presence of Kayser-Fleischner ring surrounding the cornea. Other systemic and motor signs have been documented as well as MRI changes within the brain and brainstem. This rare case illustrates the potential importance of audiometric assessment for patients with Wilson's disease who complain of hearing loss, tinnitus and intra-aural pressure. Unilateral findings were significant for retrocochlear neural transmission delays.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
9/33. intracranial hypotension: aggravation of headache at high altitude.Spontaneous intracranial hypotension is an increasingly recognized disorder, often, although not always, characterized by the triad of low-opening cerebrospinal fluid pressure on lumbar puncture, postural headache, and diffuse parenchymal meningeal enhancement on magnetic resonance imaging of the head. We describe an unusual case of a patient with spontaneous intracranial hypotension presenting with postural headache and tinnitus, aggravated at high altitudes.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
10/33. Drop attacks secondary to superior canal dehiscence syndrome.Two patients with unprovoked drop attacks were found to have dehiscence of the superior semicircular canal on CT of the temporal bone. Both had conductive hearing loss, preservation of stapedius reflex, and abnormal vestibular evoked myogenic potentials. Neither had sound- or pressure-induced nystagmus. Repair of the dehiscence in one case stopped the drop attacks, supporting a causal relationship between the dehiscence and the drop attacks.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
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