keyword
MENU ▼
Read by QxMD icon Read
search

Endolymphatic hydrops

keyword
https://www.readbyqxmd.com/read/27910089/bilateral-endolymphatic-hydrops-in-a-patient-with-migraine-variant-without-vertigo-a-case-report
#1
Isabelle Y Liu, Akira Ishiyama, Ali R Sepahdari, Kevin Johnson, Gail Ishiyama
OBJECTIVE: To use modern high-resolution inner ear imaging modalities to evaluate for endolymphatic hydrops (EH) in a patient with migraine-associated fluctuating hearing loss without vertigo spells or dizziness. BACKGROUND: EH has been well described in patients with Meniere's disease on both human temporal bone studies and modern high-resolution imaging; however, there is no study to date, to our knowledge, that examines the presence of EH in a patient with migraine and bilateral hearing loss...
December 2, 2016: Headache
https://www.readbyqxmd.com/read/27851656/does-otosclerosis-affect-dark-and-transitional-cells-in-the-human-vestibular-labyrinth
#2
Serdar Kaya, Michael M Paparella, Sebahattin Cureoglu
HYPOTHESIS: The density of vestibular dark cells (DCs) and vestibular transitional cells (TCs) can be quantitatively decreased in human temporal bones with otosclerosis. BACKGROUND: Previous reports have shown that otosclerosis can lead to vestibular symptoms. METHODS: We examined 61 human temporal bone specimens from 52 deceased donors with otosclerosis group-with and without endosteal involvement (EI), and with and without endolymphatic hydrops (EH)-versus 25 specimens from 18 age-matched controls...
November 15, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27837211/-modern-imaging-of-the-temporal-bone
#3
S Kösling
This article describes the current significance of computed tomography (CT), magnetic resonance imaging (MRI), cone beam CT, digital subtraction angiography (DSA), and special X‑rays in the diagnostics of temporal bone diseases. The latter is obsolete for diagnostic intentions. Possibilities and limitations in terms of detection and/or depiction of the extent of inflammatory, traumatic, tumorous, and postoperative pathologies are discussed. A concrete question and conveyance of clinical findings influence the choice of the method to be applied in the individual case...
November 11, 2016: HNO
https://www.readbyqxmd.com/read/27783138/cochlear-implantation-in-patients-with-definite-meniere-s-disease
#4
Nils Kristian Prenzler, Eva Bültmann, Alexandros Giourgas, Melanie Steffens, Rolf Benedikt Salcher, Stefan Stolle, Anke Lesinski-Schiedat, Thomas Lenarz, Martin Durisin
The exact pathomechanism of deafening in Meniere's disease (MD) is still unknown; intoxication of hair cells and neural damage from endolymphatic hydrops is discussed. In the literature, there are only a few reports on hearing outcome of MD patients after treatment with cochlear implantation (CI) whereby especially the comparison of MD vs. non-MD patients with CI differs. In this retrospective study, results in speech understanding [Freiburger Einsilber (FES65) and Hochmair-Schulz-Moser test in quiet (HSM) and in noise (HSM + 10 dB)] of 27 implanted MD patients were collected and compared to a matched standard CI cohort...
October 25, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27752909/changes-in-endolymphatic-hydrops-visualized-by-magnetic-resonance-imaging-after-sac-surgery
#5
Yuan Zhang, Yong-Hua Cui, Ying Hu, Zhong-Yao Mao, Qiu-Xia Wang, Chu Pan, Ai-Guo Liu
The purpose of the study was to observe changes in endolymphatic hydrops by using intratympanic injection of gadolinium and magnetic resonance imaging (MRI) before and after endolymphatic sac surgery in patients with unilateral Meniere's disease. Thirteen patients with unilateral Meniere's disease undergoing endolymphatic sac surgery were retrospectively and prospectively analyzed. Three-dimensional fluid-attenuated inversion recovery or three-dimensional real inversion recovery MRI was performed 24 h after an intratympanic injection of gadolinium to grade the presence of endolymphatic hydrops...
October 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27747231/audiovestibular-function-deficits-in-vestibular-schwannoma
#6
Constantin von Kirschbaum, Robert Gürkov
Introduction. Vestibular schwannomas (VS) are benign tumours of the vestibular nerve and can lead to hearing loss, tinnitus, vertigo, facial palsy, and brainstem compression. Audiovestibular diagnostic tests are essential for detection and treatment planning. Methods. Medline was used to perform a systematic literature review with regard to how audiovestibular test parameters correlate with symptoms, tumour size, and tumour location. Results. The auditory brainstem response can be used to diagnose retrocochlear lesions caused by VS...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27739351/computing-simulated-endolymphatic-flow-thermodynamics-during-the-caloric-test-using-normal-and-hydropic-duct-models
#7
Jorge Rey-Martinez, Leigh McGarvie, Nicolás Pérez-Fernández
CONCLUSION: The obtained simulations support the underlying hypothesis that the hydrostatic caloric drive is dissipated by local convective flow in a hydropic duct. OBJECTIVE: To develop a computerized model to simulate and predict the internal fluid thermodynamic behavior within both normal and hydropic horizontal ducts. METHODS: This study used a computational fluid dynamics software to simulate the effects of cooling and warming of two geometrical models representing normal and hydropic ducts of one semicircular horizontal canal during 120 s...
October 14, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27733274/treatment-of-ear-and-bone-disease-in-the-phex-mouse-mutant-with-dietary-supplementation
#8
Cameron C Wick, Sharon J Lin, Heping Yu, Cliff A Megerian, Qing Yin Zheng
HYPOTHESIS: Phosphorus and vitamin D (calcitriol) supplementation in the Phex mouse, a murine model for endolymphatic hydrops (ELH), will improve otic capsule mineralization and secondarily ameliorate the postnatal development of ELH and sensorineural hearing loss (SNHL). BACKGROUND: Male Phex mice have X-linked hypophosphatemic rickets (XLH), which includes osteomalacia of the otic capsule. The treatment for XLH is supplementation with phosphorus and calcitriol...
September 28, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27685753/inhibition-of-phosphodiesterase-3-4-and-5-induces-endolymphatic-hydrops-in-mouse-inner-ear-as-evaluated-with-repeated-9-4t-mri
#9
Eva Degerman, Rene In 't Zandt, Annki Pålbrink, Lena Eliasson, Per Cayé-Thomasen, Måns Magnusson
CONCLUSION: The data indicate important roles for phosphodiesterase (PDE) 3, 4, 5, and related cAMP and cGMP pools in the regulation of inner ear fluid homeostasis. Thus, dysfunction of these enzymes might contribute to pathologies of the inner ear. OBJECTIVE: The mechanisms underlying endolymphatic hydrops, a hallmark of inner ear dysfunction, are not known in detail; however, altered balance in cAMP and cGMP signaling systems appears to be involved. Key components of these systems are PDEs, enzymes that modulate the amplitude, duration, termination, and specificity of cAMP and cGMP signaling...
August 15, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27676652/magnetic-resonance-imaging-evaluation-of-endolymphatic-hydrops-andpost-operative-findings-in-cases-with-otosclerosis
#10
Michihiko Sone, Tadao Yoshida, Satofumi Sugimoto, Kyoko Morimoto, Yuriko Okazaki, Masaaki Teranishi, Shinji Naganawa, Tsutomu Nakashima
CONCLUSIONS: The presence of endolymphatic hydrops (EH) in the vestibule on magnetic resonance imaging (MRI) might be a high-risk factor for complications in cases that are candidates for stapes surgery. OBJECTIVE: Pre-operative detection of EH could be valuable in cases that are candidates for stapes surgery to prevent unpredictable complications following surgery. Pre-operative MRI findings and post-operative findings following stapes surgery were compared to evaluate the efficacy of such MRI evaluation for the management of cases with otosclerosis...
September 27, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27608418/post-hybrid-cochlear-implant-hearing-loss-and-endolymphatic-hydrops
#11
Akira Ishiyama, Joni Doherty, Gail Ishiyama, Alicia M Quesnel, Ivan Lopez, Fred H Linthicum
OBJECTIVE: To evaluate for potential causes of delayed loss of residual hearing that variably occurs with hybrid cochlear implants. STUDY DESIGN: Histopathological evaluation of 29 human temporal bone (HTB) with cochlear implant (CI). SETTING: The Neurotology and House HTB Laboratory of UCLA (House-UCLA). SUBJECTS AND METHODS: HTB from CI patients from the House-UCLA HTB Laboratory (n = 28) and one courtesy of Massachusetts Eye and Ear Infirmary (MEEI)...
December 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27564645/endolymphatic-hydrops-in-patients-with-unilateral-and-bilateral-meniere-s-disease
#12
Kyoko Morimoto, Tadao Yoshida, Saiko Sugiura, Masahiro Kato, Ken Kato, Masaaki Teranishi, Shinji Naganawa, Tsutomu Nakashima, Michihiko Sone
CONCLUSION: All definite Meniere's disease (MD) had endolymphatic hydrops (EH) at least in the cochlea or the vestibule. Symptoms of MD may appear after formation of EH. It is assumed that the probability of immediate progression to bilateral MD from unilateral MD is very low in patients without EH on the non-affected side. OBJECTIVE: To evaluate the EH on both sides in patients with unilateral and bilateral MD, and to investigate factors with progression to bilateral MD including the degree of EH, hearing level, and the duration of MD...
August 26, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27531138/-rediscovery-of-an-old-diagnosis-delayed-endolymphatic-hydrops
#13
B Schwab
No abstract text is available yet for this article.
December 2016: HNO
https://www.readbyqxmd.com/read/27525625/detection-of-saccular-endolymphatic-hydrops-in-m%C3%A3-ni%C3%A3-re-s-disease-using-a-modified-glycerol-cvemp-test-in-combination-with-the-tuning-property-test
#14
Toshihisa Murofushi, Sakurako Komiyama, Ryota Suizu
OBJECTIVE: To determine the optimal method for detecting saccular endolymphatic hydrops (EH) in patients with Ménière's disease (MD) using a glycerol cervical vestibular evoked myogenic potential (cVEMP) test in combination with a tuning property test. STUDY DESIGN: Prospective patients series. SETTING: Tertiary referral center. PATIENTS: Twenty-three subjects (age: 36-77 years) were enrolled in this study. Seventeen subjects were diagnosed with definite MD...
September 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27525624/high-resolution-mri-shows-presence-of-endolymphatic-hydrops-in-patients-still-symptomatic-after-endolymphatic-shunt-surgery
#15
Isabelle Y Liu, Ali R Sepahdari, Gail Ishiyama, Akira Ishiyama
OBJECTIVE: Endolymphatic hydrops has been well described in patients with Ménière's syndrome; however, causation has not been established. Decompression of the endolymphatic sac has been proposed as a means to relieve hydrops and improve vertigo symptoms, but the efficacy of the surgery is debated. Until recently, there have been few objective measures of efficacy other than patients' subjective symptoms. Recent archival human temporal bone studies have shown that patients continue to have hydrops after shunt surgery...
September 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27492473/clinical-features-of-delayed-endolymphatic-hydrops-and-intralabyrinthine-schwannoma-an-imaging-confirmed-comparative-case-series-english-version
#16
C Jerin, E Krause, B Ertl-Wagner, R Gürkov
BACKGROUND: The aim of this study was to compare the clinical history and audiovestibular function test results of patients suffering from intralabyrinthine schwannoma or delayed endolymphatic hydrops (DEH). PATIENTS AND METHODS: Five patients diagnosed with intralabyrinthine schwannoma by magnetic resonance imaging (MRI) and five patients diagnosed with DEH by locally enhanced inner ear MRI (LEIM) were retrospectively studied. RESULTS: All patients with intralabyrinthine schwannoma or DEH initially presented with hearing loss...
August 4, 2016: HNO
https://www.readbyqxmd.com/read/27492472/-clinical-features-of-delayed-endolymphatic-hydrops-and-intralabyrinthine-schwannoma-an-imaging-confirmed-comparative-case-series-german-version
#17
C Jerin, E Krause, B Ertl-Wagner, R Gürkov
BACKGROUND: The aim of this study was to compare the clinical history and the findings in audiovestibular function tests in patients suffering from intralabyrinthine schwannoma or delayed endolymphatic hydrops (DEH). PATIENTS AND METHODS: Five patients diagnosed with intralabyrinthine schwannoma by magnetic resonance imaging (MRI) and five patients diagnosed with DEH by locally enhanced inner ear MRI (LEIM) were retrospectively studied. RESULTS: All patients with intralabyrinthine schwannoma or DEH initially presented with hearing loss...
December 2016: HNO
https://www.readbyqxmd.com/read/27440440/a-three-dimensional-analysis-of-the-endolymph-drainage-system-in-m%C3%A3-ni%C3%A3-re-disease
#18
Rafael da Costa Monsanto, Henrique F Pauna, Geeyoun Kwon, Patricia A Schachern, Vladimir Tsuprun, Michael M Paparella, Sebahattin Cureoglu
OBJECTIVES/HYPOTHESIS: To measure the volume of the endolymph drainage system in temporal bone specimens with Ménière disease, as compared with specimens with endolymphatic hydrops without vestibular symptoms and with nondiseased specimens STUDY DESIGN: Comparative human temporal bone analysis. METHODS: We generated three-dimensional models of the vestibular aqueduct, endolymphatic sinus and duct, and intratemporal portion of the endolymphatic sac and calculated the volume of those structures...
July 21, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27437251/incidence-of-hypothyroidism-in-meniere-s-disease
#19
U P Santosh, M S Sudhakar Rao
INTRODUCTION: Meniere's disease is a disorder of the membranous labyrinth of the inner ear manifesting as vertigo, tinnitus, sensory neural hearing loss and aural fullness of known or unknown origin. Some patients may present after years into typical forms. The endocrine disorders, especially hypothyroidism and the factors like inflammation, trauma, otosclerosis, autoimmunity explains the multifactorial causation for the basis of Meniere's disease. Endolymphatic hydrops is the pathologic term named for the defective regulation of endolymph volume with respect to production and absorption...
May 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27430361/gd-based-contrast-enhancement-of-the-perivascular-spaces-in-the-basal-ganglia
#20
Shinji Naganawa, Toshiki Nakane, Hisashi Kawai, Toshiaki Taoka
PURPOSE: In textbooks, the perivascular space (PVS) is described as non-enhancing after the intravenous administration of gadolinium-based contrast agent (IV-GBCA). We noticed that the PVS sometimes has high signal intensity (SI) on heavily T2-weighted 3D-FLAIR (hT2-FL) images obtained 4 h after IV-GBCA. The purpose of this study was to retrospectively evaluate the contrast enhancement of the PVS. MATERIALS AND METHODS: In 8 healthy subjects and 19 patients with suspected endolymphatic hydrops, magnetic resonance cisternography (MRC) and hT2-FL images were obtained before and 4 h after a single dose of IV-GBCA...
July 12, 2016: Magnetic Resonance in Medical Sciences: MRMS
keyword
keyword
88957
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"