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PubMed2005

Surgical management of Meniere's disease in the era of gentamicin.

OBJECTIVE: For many years, surgery was the mainstay of therapy for medically refractory patients, but recently, transtympanic gentamicin perfusion has attracted increasing interest and is a method frequently used for treating Meniere's disease. Many otologists question the relevance of surgical treatments, and traditional options are rarely discussed or offered to patients. The purpose of this study is to describe results of labyrinthectomy, vestibular nerve section, and endolymphatic mastoid shunt surgery for patients with Meniere's disease and to compare them with published results for gentamicin perfusion. STUDY DESIGN AND SETTING: Retrospective chart review. Two hundred twenty-nine patients underwent surgery for management of Meniere's disease between January 1, 1995 and December 31, 2001. One hundred eighty-nine patients' charts had sufficient data for review. Thirty-two patients had translabyrinthine labyrinthectomies, 83 underwent suboccipital vestibular nerve sections, and 74 elected for an endolymphatic mastoid shunt. Hearing results, dizziness classification, and functional level score were determined from patient charts and telephone conversations. All results were in accordance with the guidelines of the AAO-HNS Committee on Hearing and Equilibrium for evaluation of Meniere's disease therapy. RESULTS: Audiologic results, functional level score, and dizziness classification are reported for the preoperative period and for the 18- to 24-month postoperative period for all surgical patients. These data are also reported individually for each of the 3 surgical procedures. Early postoperative data and most recent follow-up data are presented if available. CONCLUSIONS: Surgical management of Meniere's disease is a safe and viable option for patients with medically refractory disease. EBM RATING: C.

Adolescent↗
PubMed1980

A review of vestibular test results in Meniere's disease.

It is our opinion that a great deal of prospective work must be done in order to sort out all the variables encountered in subjects with Meniere's disease. This goal will best be accomplished by first establishing a better understanding of the pathophysiology of Meniere's disease. Given a clearer understanding of the mechanisms of idiopathic hydrops and the changes that occur as the disease progresses, sensitive specific vestibular test methods can be developed to quantitatively define specific abnormalities. Techniques recently developed show a great deal of promise for meaningful quantitative testing in subjects with Meniere's disease.

Caloric Tests↗
PubMed1979

Cochleo-vestibular correlations in Meniere's disease.

The cochlear and vestibular functions were investigated in a sample of 36 patients with unilateral Meniere's disease. Caloric reactions and hearing thresholds were compared separately at several frequencies. A topodiagnostic relationship between the cochlear and vestibular function was discovered. Using four qualitative categories, a significantly high correlation was obtained between the basal hearing loss (4000 Hz) and unilateral weakness, whereas no correlation was obtained when evaluating the more apical hearing loss (lower frequencies 250-1 000 Hz). A normal caloric reaction can be reasonably expected in cases of unilateral Meniere's disease if the hearing loss is less than approx. 40 dB HL at 4 000 Hz.

Adolescent↗
PubMed2004

Vestibular nerve section versus intratympanic gentamicin for Meniere's disease.

OBJECTIVES/HYPOTHESIS: Vestibular nerve section and transtympanic gentamicin administration are procedures with proven efficacy in the treatment of vertigo associated with Meniere's disease refractory to medical management. Hearing loss is a known complication of each of these procedures; however, there has not been a report of hearing results of both treatments from a single institution. STUDY DESIGN: Retrospective review. METHODS: Review was made of 25 patients undergoing gentamicin injection and 39 patients undergoing vestibular nerve section for Meniere's disease. Rate of vertigo control and pretreatment and post-treatment pure-tone average values and speech discrimination scores were reported. RESULTS: The mean preoperative pure-tone average for patients having vestibular nerve section was 47.2 dB, with a speech discrimination score of 75.4%. In these patients, the postoperative pure-tone average was 49.1 dB and the speech discrimination score was 75%. Patients undergoing gentamicin injection had a mean pretreatment pure-tone average of 55.9 dB and a speech discrimination score of 62%. The post-treatment pure-tone average and speech discrimination score for the gentamicin group were 68.8 dB and 49.3%, respectively. Five of 25 patients (20%) in the gentamicin treatment group and 1 of 39 (3%) in the vestibular nerve section treatment group had an increase in bone-conduction threshold greater than 30 dB. The amount of postprocedure hearing loss was significantly greater in the gentamicin treatment group (P =.006). Control of vertigo was good to excellent in 95% of the patients treated with vestibular nerve section and in 80% of the patients treated with gentamicin. CONCLUSION: Although vestibular nerve section and transtympanic gentamicin are both acceptable treatment options for vertigo associated with Meniere's disease, gentamicin causes a higher level of hearing loss related to treatment and vestibular nerve section has higher vertigo control rates.

Anti-Bacterial Agents↗
PubMed1983

Fluid-solute regulation systems in patients with Meniere's disease.

A comprehensive endocrinologic evaluation of water electrolyte balance system was performed on 25 patients with Meniere's disease, 6 persons with sudden deafness, and 20 normal persons. In the controlled environment, the following studies were performed: (1) plasma and urine NA+K+ and Cl-, (2) plasma 17-ketosteroid and 17-hydroxysteroids, (3) plasma cortisol and ACTH, (4) urine steroids, (5) urinary excretion of aldosterone, (6) plasma activity of the renin (PRA) in clinostatism and in orthostatism, (7) plasma aldosterone in clinostatism and orthostatism. In patients with Meniere's disease and sudden deafness, the walter-electrolyte balance results were normal, as were the hormonal system directly (renin-aldosterone) or indirectly (cortisol-ACTH) involved. A further confirmation of the integrity of the explored enzymatic-endocrinologic complex derived from the normal response observed in all patients when they were subjected to a physiologic stimulus as represented by the orthostatism. The results of the present study do not confirm previous findings by Arenberg and Goodfriend.

17-Ketosteroids↗
PubMed2001

[Endolymphatic sac drainage and steroid-instillation surgery (EDSS) for intractable Meniere's disease].

Endolymphatic sac surgery is one of the most widely accepted techniques used to treat intractable Meniere's disease. To improve this surgery, we developed the following techniques: A simple mastoidectomy was used to expose the endolymphatic sac between the sigmoid sinus and inferior margin of the posterior semicircular canal. The sac was opened and filled with a mass of prednisolone. A bundle of absorbable gelatin films was then inserted into the sac lumen to expand it, followed by gelatin sponges dipped in a high concentration of dexamethasone. Long-term results (17-32 months) in 20 patients with intractable Meniere's disease treated with endolymphatic sac drainage and steroid-insertion surgery (EDSS) showed that definitive spells were completely controlled in 15 of 20 cases (75%); all reports of vertigo decreased; hearing improved in 12 of 20 cases (60%); and annoyance due to tinnitus decreased in 15 of 20 cases (75%). Steroids directly instilled into the endolymphatic cavity may thus be more effective with the diseased inner ear organs than those applied via any other route. Draining of endolymphatic fluid at the sac into the mastoid cavity also contributed to these satisfactory EDSS results.

Adult↗
PubMed2000

Pressure transfer between intracranial and cochlear fluids in patients with Meniere's disease.

OBJECTIVES: To elucidate the pressure transfer between intracranial and labyrinthine fluids in patients with well-defined unilateral Meniere's disease. STUDY DESIGN: Eleven patients previously exposed to hypobaric pressure agreed to be investigated further with the tympanic membrane displacement (TMD) technique. TMD was used to indirectly analyze perilymph pressure changes as the result of changes in body position. METHODS: Repeated measurements for both the diseased and the healthy ears were made with the patients supine and then in a sitting position. The TMD parameters for the maximum inward displacement, the Vi, and the mean volume displacement, the Vm, were calculated and compared. RESULTS: The paired comparison showed statistically significant larger Vi values for both ears in the supine position. A similar tendency was observed for the Vm value. This difference of the Vi was significantly larger for the diseased ear compared with the currently healthy ear. The results were compared to the audiometric and electrocochleographic results previously obtained on the same patients when they were subjected to hypobaric pressure. Patients who experienced the largest differences in hearing level thresholds in the lower frequencies also showed the greatest differences in TMD values as the result of postural changes. CONCLUSIONS: Despite the limited number, the statistically supported results suggest a relation between the efficiency of the routes of pressure transfer and the observed effect of hypobaric exposure. The results also indicate that for the patients tested, the routes of communication are more effective in the diseased ear than in the healthy ear--a condition that may relate to the pathogeneses of Meniere's disease.

Adult↗
PubMed1984

The natural course of Meniere's disease.

A retrospective study of 161 Meniere patients followed up for 9 years or more is presented. The development with respect to hearing, caloric response, vertigo and ability to work was analysed. The main functional loss was found to take place early in the course of the disease. There was an increase in bilaterality with time.

Adolescent↗
PubMed1998

Intratympanic gentamicin treatment for Meniere's disease.

OBJECTIVES: The purpose of this study was to evaluate the safety and efficacy of a modified intratympanic gentamicin technique in patients with intractable unilateral or bilateral Meniere's disease. METHODS: A retrospective review of 25 consecutive patients who underwent gentamicin treatment for Meniere's disease was conducted between 1992 and 1996. Two separate delivery systems were used during this study, with the last 13 subjects undergoing placement of the new system (flanged polyethylene tubing). RESULTS: Follow-up averaged 23 months. Absence of vertigo spells was reported in 88%, and substantial control was achieved in 12%. Four of five patients with bilateral disease achieved complete control. Results for the two delivery systems were not significantly different. Absence of ice-water caloric response was seen in 75% (15 of 20) patients. Clinically significant sensorineural hearing loss occurred in 5 (20%) of 25 ears. Nonserviceable hearing developed in only two (8%) patients. CONCLUSIONS: Our results support the previously reported efficacy and relative safety of gentamicin infusion therapy for intractable Meniere's disease. Polyethylene tubing may be more advantageous than T-tube delivery because of anatomic concerns in certain patients.

Administration, Topical↗
PubMed1997

Medical treatment of Meniere's disease.

The aim of this article is to review the pharmacologic therapy used in the treatment of Meniere's disease. The first portion of the article discusses the treatment of acute labyrinthine crisis, which includes medication for patients that provides relief of the nausea, vomiting, and vertigo that accompanies acute attack. The second half of the article discusses medication used to help prevent attacks of Meniere's disease.

Aminoglycosides↗
PubMedDate not supplied

Meniere's disease: treatment with the endolymphatic subarachnoid shunt, a review of 125 cases.

A critical review of the results of treatment of 125 patients with Meniere's disease by the endolymphatic subarachnoid shunt is presented. Of the patients, 61% experienced improvement in vertigo. Hearing stabilized or improved in the majority of cases. Detailed analysis of preoperative factors did not enable prediction of the likelihood of success in an individual case. The controversy regarding surgical therapy of Meniere's disease is discussed, and the conclusion that there is a role for endolymphatic sac surgery in the treatment of Meniere's disease is presented.

Adult↗
PubMed1999

Prediction of vertigo recurrences in Meniere's disease by the head-shaking test.

Researchers have observed that when head-shaking nystagmus (HSN) is provoked in patients with peripheral vestibular disorders, usually (in more than 75% of cases) it beats toward the normal or unaffected ear. The reverse of this pattern occurs commonly in patients with Meniere's disease. This finding presumably reflects the changeable pathophysiological state of the labyrinth of Meniere's disease. We retrospectively analyzed clinical records of eight patients who had unilateral Meniere's disease and came to Gunma University Hospital for consultation in the period from 1984 through 1989. All patients satisfied the following condition: In the period prior to the attacks of vertigo, for which a 10-day period preceding the attack was arbitrarily considered (the forerunning period), HSN reversed its direction, appeared, or disappeared. When HSN showed a biphasic pattern, only the first phase was considered in this present analysis. In the period before the attack, HSN reversed its direction from the normal to the morbid ear five times in four patients, appeared toward the morbid ear in three patients, and disappeared from one beating toward the normal ear before the forerunning period of vertigo attacks in one patient. These findings suggest that the occurrence of HSN directed to the morbid ear in the recuperation period in Meniere's disease might indicate the impending recurrence of a vertigo attack in a few days. In the present group of patients, vertigo attacks occurred from 6 hours to 8 days (average, 3.2 days) after the observation of HSN beating toward the morbid ear. In three of these patients, the immediate administration of isosorbide (a hyperosmotic diuretic) in this stage successfully suppressed the recurrence of vertigo attacks.

Adult↗
PubMed2000

Temporal bone studies of the human peripheral vestibular system. Meniere's disease.

Quantitative assessments of vestibular hair cells and Scarpa's ganglion cells were performed on temporal bones from 24 patients with well-documented Meniere's disease. Of these, 18 had unilateral disease and 6 had bilateral disease. Vestibular hair cell counts were made in each of the 5 sense organs by Nomarski (differential interference contrast) microscopy. Hair cell counts were expressed as densities: number of cells per 0.01 mm2 surface area of the sensory epithelium. The results were compared with age- and sex-matched normal data. The type I hair cell densities for all vestibular sense organs were within the range for normative data. On the other hand, there was a significant loss (p < .01) of type II hair cells for all 3 cristae and both maculae. There was also a significant loss of Scarpa's ganglion cells (p < .001) when compared with normative data. The findings indicate a selective loss of type II hair cells and Scarpa's ganglion cells in Meniere's disease. These new observations have implications regarding the pathophysiological mechanism and clinical manifestations of Meniere's disease.

Adult↗
PubMed2006

Evolution of audiometric pattern in Meniere's disease: long-term survey of 380 cases evaluated according to the 1995 guidelines of the American Academy of Otolaryngology-Head and Neck Surgery.

OBJECTIVES: Hearing loss in the early stages of Meniere's disease is characterized by a fluctuation in the audiometric pattern limited to the low frequencies, and then, during the disease's evolution, the hearing loss involves the medium and high frequencies. As far as the prevalence of different types of audiometric curves is concerned, there is no agreement among the various studies. The study of audiometric evolution in the course of the disease has been limited owing to the difficulties in following a relevant number of patients for a long period of time. The aim of the present study was to compare the auditory level and audiometric pattern evolution in a significant number of patients suffering from Meniere's disease who had undergone long-term follow-up (at least 10 years). METHODS: The study considered 380 patients with a confirmed diagnosis of Meniere's disease. The audiometric data were collected at the onset of the disease and after 5 and 10 years. Four patterns were considered: peak, rising, falling, and flat. Audiometric evolution analysis in four stages, defined by the guidelines of the American Academy of Otolaryngology-Head and Neck Surgery, was evaluated. RESULTS: At the onset, in 190 cases, the audiometric pattern was a peak curve, with fluctuation of the threshold in 68% of cases. The mean threshold shift for the 500 to 3000 Hz range was between 26 and 40 dB. After 5 years, a peak type (41.9%) or a flat type (42.9%) was observed; the pure-tone average (PTA) ranged between 26 and 40 dB in 47.9% and between 41 and 70 dB in 51.8% of cases. After 10 years, in most cases (57.9%), a flat curve was observed, and the PTA in 100% ranged between 41 and 70 dB. CONCLUSION: The most common audiometric pattern at the onset of the disease is the peak type; long-term transformation of the initial audiometric pattern into a flat curve has been confirmed. High-frequency involvement seemed to be related more to Meniere's disease duration than to the influence of aging on hearing loss.

Adult↗
PubMed2000

Does intratympanic gentamicin treatment for Meniere's disease cause complete vestibular ablation?

OBJECTIVE: To determine changes in vestibular function following intratympanic gentamicin (ITG) treatment for Meniere's disease and to correlate changes with the need for further treatment. STUDY DESIGN: Prospective case series. PATIENTS: One hundred and three patients with disabling unilateral Meniere's disease who had failed a minimum of 6 months medical treatment. MAIN OUTCOME MEASURES: Vestibular function was measured by electronystagmography (ENG) caloric testing before and serially following treatment. Caloric responses were classified as normal (excitability difference [ED] < 25%), bithermal response (ED > or = 25%), positive response to ice water only, and absent ice water response. RESULTS: Twenty-one percent of patients had a bithermal caloric response, 62% had an absent ice water response, and 17% had an ice water response only 1 month following treatment. Mean follow-up was 27.3 months (range = 1-106 months). Eighty-four patients had one treatment course only. Fourteen patients required a further course of treatment due to recurrence of vertigo; 38% of these had recovery of caloric function. Significantly more patients with normal caloric function prior to initial treatment required further treatment compared to those with initial reduced caloric function (p < .05). Patients rendered absent ice water responsive were significantly less likely to require further treatment than those with a persistent caloric response (p < .0001). CONCLUSION: An absent ice water response is highly predictive of adequate vertigo control. Regimens of ITG that aim to completely ablate vestibular function are recommended.

Adult↗