keyword
MENU ▼
Read by QxMD icon Read
search

Endolymphatic hydrops

keyword
https://www.readbyqxmd.com/read/29343658/differences-in-signal-intensity-and-enhancement-on-mr-images-of-the-perivascular-spaces-in-the-basal-ganglia-versus-those-in-white-matter
#1
Shinji Naganawa, Toshiki Nakane, Hisashi Kawai, Toshiaki Taoka
PURPOSE: To elucidate differences between the perivascular space (PVS) in the basal ganglia (BG) versus that found in white matter (WM) using heavily T2-weighted FLAIR (hT2-FL) in terms of 1) signal intensity on non-contrast enhanced images, and 2) the degree of contrast enhancement by intravenous single dose administration of gadolinium based contrast agent (IV-SD-GBCA). MATERIALS AND METHODS: Eight healthy men and 13 patients with suspected endolymphatic hydrops were included...
January 18, 2018: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29336131/vestibular-schwannoma-and-ipsilateral-endolymphatic-hydrops-an-unusual-association
#2
Massimo Ralli, Antonio Greco, Giancarlo Altissimi, Rosaria Turchetta, Lucia Longo, Vittorio D'Aguanno, Mario Tombolini, Giancarlo Cianfrone, Marco de Vincentiis
Vestibular schwannoma and endolymphatic hydrops are two conditions that may present with similar audio-vestibular symptoms. The association of the two in the same patient represents an unusual finding that may lead clinicians to errors and delays in diagnosis and clinical management of affected subjects. We discuss the case of a patient with an intrameatal vestibular schwannoma reporting symptoms suggestive for ipsilateral endolymphatic hydrops. The patient presented with fluctuating hearing loss, tinnitus, and acute rotatory vertigo episodes, and underwent a full audiological evaluation and imaging of the brain with contrast-enhanced Magnetic Resonance Imaging...
December 1, 2017: International Tinnitus Journal
https://www.readbyqxmd.com/read/29335859/arginine-vasopressin-aquaporin-2-pathway-mediated-dehydration-effects-of-electroacupuncture-in-guinea-pig-model-of-avp-induced-endolymphatic-hydrops
#3
Li-Yuan Jiang, Jiao-Jun He, Xi-Xi Chen, Xue-Jiao Sun, Xue-Zhong Wang, Shan Zhong, Hua-de Chen
OBJECTIVE: To investigate the effects of electroacupuncture (EA) on endolymphatic hydrops (EH) and the regulation of arginine vasopressin (AVP)-aquaporin-2 (AQP2) pathway in guinea pigs. METHODS: EH was induced in male guinea pigs by an intraperitoneal injection of AVP. For the treatment, EA was delivered to Baihui (GV 20) and Tinggong (SI 19) acupoints, once per day for 10 consecutive days. In histomorphological studies, cochlear hydrops degree was evaluated by hematoxylin-eosin (HE) staining, and then the ratio of scala media (SM) area to SM + scala vestibuli (SV) area (R value) was calculated...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29315188/relationship-between-the-extent-of-endolymphatic-hydrops-and-the-severity-and-fluctuation-of-audiovestibular-symptoms-in-patients-with-meni%C3%A3-re-s-disease-and-mri-evidence-of-hydrops
#4
Claudia Jerin, Sonja Floerke, Rebecca Maxwell, Robert Gürkov
OBJECTIVE: To characterize the short-, middle-, and long-term occurrence of vertigo attacks in a large population of Menière's disease (MD) and to investigate the relationship between the extent of endolymphatic hydrops (ELH) and the severity of audiovestibular symptoms. STUDY DESIGN: Prospective observational study. METHODS: One hundred ninety-two patients with clinically definite MD participated in this study. The degree of ELH was visualized by locally enhanced inner ear magnetic resonance imaging...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29299506/longitudinal-up-regulation-of-endolymphatic-hydrops-in-patients-with-meniere-s-disease-during-medical-treatment
#5
Munehisa Fukushima, Tadashi Kitahara, Ryohei Oya, Shiro Akahani, Hidenori Inohara, Shinji Naganawa, Noriaki Takeda
Objective/Hypothesis: Meniere's disease (MD) is a common inner ear disease characterized by repeated episodic vertigo, fluctuating sensorineural hearing loss, and tinnitus. Its pathology is defined as endolymphatic hydrops (EH) in the inner ear and EH has been hypothesized to correlate with the clinical symptoms of MD. We presented the dynamics of in vivo EH in MD patients during medical treatments. Study Design: Prospective, single-arm repeated measures. Methods: Eleven MD patients were enrolled...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29287037/correlations-between-the-degree-of-endolymphatic-hydrops-and-symptoms-and-audiological-test-results-in-patients-with-meni%C3%A3-re-s-disease-a-reevaluation
#6
Shiyin Yang, Huaming Zhu, Bijun Zhu, Hui Wang, Zhengnong Chen, Yaqin Wu, Bin Chen, Haibo Shi, Yuehua Li, Jing Zou, Shankai Yin
OBJECTIVE: This study was performed to reevaluate the diagnostic significance of clinically well-accepted audiological tests in indicating endolymphatic hydrops (EH) in Menière's disease (MD). STUDY DESIGN: Retrospective case review. SETTINGS: Hospital. PATIENTS: Fifty patients (52 affected ears) diagnosed with MD were enrolled. INTERVENTION: Diagnostic. MAIN OUTCOME MEASURE: To analyze the correlations between endolymphatic hydrops and results of audiological test including the pure-tone audiometry threshold, suprathreshold function tests, electrocochleogram, and glycerol test...
December 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29282702/treatment-of-dizziness-an-interdisciplinary-update
#7
Rainer Spiegel, Heiko Rust, Thomas Baumann, Hergen Friedrich, Raoul Sutter, Martina Göldlin, Christiane Rosin, René Müri, Georgios Mantokoudis, Roland Bingisser, Michael Strupp, Roger Kalla
This review provides an update on interdisciplinary treatment for dizziness. Dizziness can have various causes and the treatment offered should depend on the cause. After reading this article, the clinician will have an overview of current treatment recommendations. Recommendations are made for the most prevalent causes of dizziness including acute and chronic vestibular syndromes, vestibular neuritis, benign paroxysmal positional vertigo, endolymphatic hydrops and Menière's disease, vestibular paroxysmia and vestibular migraine, cardiac causes, transient ischaemic attacks and strokes, episodic ataxia type 2, persistent postural-perceptual dizziness, bilateral vestibulopathy, degenerative, autoimmune and neoplastic diseases, upbeat- and downbeat nystagmus...
December 28, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29279722/current-diagnostic-procedures-for-diagnosing-vertigo-and-dizziness
#8
REVIEW
Leif Erik Walther
Vertigo is a multisensory syndrome that otolaryngologists are confronted with every day. With regard to the complex functions of the sense of orientation, vertigo is considered today as a disorder of the sense of direction, a disturbed spatial perception of the body. Beside the frequent classical syndromes for which vertigo is the leading symptom (e.g. positional vertigo, vestibular neuritis, Menière's disease), vertigo may occur as main or accompanying symptom of a multitude of ENT-related diseases involving the inner ear...
2017: GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery
https://www.readbyqxmd.com/read/29235232/signs-of-electrocochleography-on-endolymphatic-sac-decompression-for-patients-with-m%C3%A3-ni%C3%A3-re-s-disease-our-experience-in-12-patients
#9
Wei Li, Yan Lei, Jiang Zhu, Yi Qian, Guo-Ting Ma, Tao Lu, Guo-Hua Hu, Hou-Yong Kang
Endolymphatic hydrops (ELH) is a well-established histological marker of Ménière's Disease (MD). The diagnosis of MD still depends on clinical symptoms complemented with inner ear function tests. Thus far, definitive diagnosis remains difficult. It is necessary for clinicians to explore an objective examination to diagnose MD and to monitor patients' ELH. This article is protected by copyright. All rights reserved.
December 13, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29227452/high-resolution-three-dimensional-delayed-contrast-mri-detects-endolymphatic-hydrops-in-patients-with-vertigo-and-vestibular-schwannoma
#10
Roxana Moayer, Gail P Ishiyama, Stellios Karnezis, Ali R Sepahdari, Akira Ishiyama
OBJECTIVE: Advances in high resolution magnetic resonance imaging (MRI) have enabled the detection of endolymphatic hydrops (EH), a pathological ballooning of the endolymphatic fluid system, known to be associated with Menière's disease. When a patient has a known diagnosis of vestibular schwannoma and develops recurrent episodic vertigo spells, many surgeons recommend surgical intervention, attributing the vestibular symptoms to the vestibular schwannoma. The aim of this study is to evaluate the clinical outcome in patients with vestibular schwannoma and EH, treated medically, for recurrent spells of vertigo...
January 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29190293/morphological-correlation-between-caloric-tests-and-vestibular-hydrops-in-m%C3%A3-ni%C3%A3-re-s-disease-using-intravenous-gd-enhanced-inner-ear-mri
#11
Ji Eun Choi, Yi-Kyung Kim, Young Sang Cho, Kieun Lee, Hyun Woo Park, Sung Hoon Yoon, Hyung-Jin Kim, Won-Ho Chung
The purpose of this study was to prove the hypothesis that caloric response in Ménière's disease (MD) is reduced by hydropic expansion of the vestibular labyrinth, not by vestibular hypofunction, by evaluating the correlation morphologically using an intravenous Gadolinium (IV-Gd) inner ear MRI. In study I, the prevalence of abnormal video Head Impulse Test (vHIT) results among the patients with definite unilateral MD (n = 24) and vestibular neuritis (VN) (n = 22) were investigated. All patients showed abnormal canal paresis (CP) (> 26%) on caloric tests...
2017: PloS One
https://www.readbyqxmd.com/read/29135874/meni%C3%A3-re-and-friends-imaging-and-classification-of-hydropic-ear-disease
#12
Robert Gürkov
BACKGROUND: Over 75 years ago, endolymphatic hydrops was discovered as the pathologic correlate of Menière's disease. However, this pathologic finding could be ascertained only in postmortem histologic studies. Due to this diagnostic dilemma and the variable manifestation of the various audiovestibular symptoms, diagnostic classification systems based on clinical findings have been used hitherto. METHODS: A review of the literature of magnetic resonance (MR) imaging of hydropic ear disease...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29105767/the-relationship-between-endolymphatic-hydrops-in-the-vestibule-and-low-frequency-air-bone-gaps
#13
Satofumi Sugimoto, Tadao Yoshida, Masaaki Teranishi, Yuriko Okazaki, Shinji Naganawa, Michihiko Sone
OBJECTIVES/HYPOTHESIS: To investigate the relationship between endolymphatic hydrops and hearing level, focusing on significant vestibular endolymphatic hydrops adjacent to the stapes footplate and low-frequency air-bone gaps. STUDY DESIGN: Retrospective study. METHODS: The study included 1,548 ears from 775 patients who underwent magnetic resonance imaging examination in our university hospital to investigate possible endolymphatic hydrops between January 2012 and December 2015...
November 6, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29099441/mastoid-and-inner-ear-measurements-in-patients-with-meni%C3%A3-re-s-disease
#14
Eric M Sugihara, Alexander L Marinica, Nathan D Vandjelovic, Benjamin M Kelley, Said S Sana, Nicholas E Starkey, Seilesh C Babu
OBJECTIVE: To determine the relationship between radiographic temporal bone anatomy of patients with Menière's disease in medically and surgically managed populations versus controls. STUDY DESIGN: Retrospective chart review. SETTING: Two tertiary referral centers. PATIENTS: Adults older than 18 years with Menière's disease treated with endolymphatic sac decompression (ESD) or medical management (non-ESD) versus controls...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29082086/elhnet-a-convolutional-neural-network-for-classifying-cochlear-endolymphatic-hydrops-imaged-with-optical-coherence-tomography
#15
George S Liu, Michael H Zhu, Jinkyung Kim, Patrick Raphael, Brian E Applegate, John S Oghalai
Detection of endolymphatic hydrops is important for diagnosing Meniere's disease, and can be performed non-invasively using optical coherence tomography (OCT) in animal models as well as potentially in the clinic. Here, we developed ELHnet, a convolutional neural network to classify endolymphatic hydrops in a mouse model using learned features from OCT images of mice cochleae. We trained ELHnet on 2159 training and validation images from 17 mice, using only the image pixels and observer-determined labels of endolymphatic hydrops as the inputs...
October 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/29080146/use-of-narrow-band-imaging-and-4k-technology-in-otology-and-neuro-otology-preliminary-experience-and-feasibility-study
#16
Henry Zhang, Phui Yee Wong, Tiarnan Magos, Jabin Thaj, Gaurav Kumar
The advent of the endoscope has facilitated otological surgery in recent years. Advances in optical technology have led to the development of high definition visualisation, such as 4K magnification. Narrow band imaging (NBI) has been shown to improve visualisation of tissue based on varying degrees of vascularity. This is a feasibility study, the first of its kind, aiming to investigate the appearances of middle ear anatomy and pathology (tympanic membrane, tympanosclerosis, cholesteatoma, granulation, endolymphatic sac hydrops, otosclerosis) under the NBI filter, using a high definition 4K endoscope...
January 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29056463/a-high-jugular-bulb-and-poor-development-of-perivestibular-aqueductal-air-cells-are-not-the-cause-of-endolymphatic-hydrops-in-patients-with-m%C3%A3-ni%C3%A3-re-s-disease
#17
Ryohei Oya, Takao Imai, Takashi Sato, Atsuhiko Uno, Yoshiyuki Watanabe, Suzuyo Okazaki, Yumi Ohta, Tadashi Kitahara, Arata Horii, Hidenori Inohara
OBJECTIVE: The presence of endolymphatic hydrops in the inner ear, which can be detected with gadolinium-enhanced magnetic resonance imaging (Gd-MRI), is widely recognized as the main pathological cause of Ménière's disease (MD). However, the precise mechanisms underlying the development of endolymphatic hydrops remains unclear. One hypothesis proposes a relationship between the presence of a high jugular bulb (HJB) and MD, which disrupts the vestibular aqueduct leading to the development of endolymphatic hydrops...
October 19, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28984808/cochlear-dysfunction-is-not-common-in-human-meningioma-of-the-internal-auditory-canal
#18
Lukas D Landegger, Jong D Lee, Fred H Linthicum, Konstantina M Stankovic
HYPOTHESIS: Cochlear dysfunction is not common in human meningioma of the internal auditory canal. BACKGROUND: Meningiomas arising from the cerebellopontine angle and internal auditory canal typically cause hearing loss. Cochlear dysfunction is known to contribute to sensorineural hearing loss induced by vestibular schwannoma, the most common tumor of the internal auditory canal. Detailed cochlear histopathology in meningioma has not been reported. METHODS: Retrospective analysis of cochlear histopathology in five unoperated and five operated meningiomas of the internal auditory canal identified after screening human temporal bone collections from three academic medical centers...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28984802/vestibular-function-change-in-a-vasopressin-induced-hydrops-model
#19
Minbum Kim, Kyu-Sung Kim
HYPOTHESIS: A vasopressin-induced endoymphatic hydrops model can represent an acute vertiginous attack in Menière's disease (MD). BACKGROUND: Previous animal models are not appropriate to evaluate the efficacy of new treatments for hydrops because they cannot represent an acute attack of MD. Recently, a new dynamic model was introduced for acute hydrops exacerbation using the vasopressin type 2 receptor agonist, desmopressin (1-deamino-8-D-Arginine vasopressin, VP); however, resulting changes in vestibular function have not been investigated...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28969854/mri-in-otology-applications-in-cholesteatoma-and-m%C3%A3-ni%C3%A3-re-s-disease
#20
REVIEW
R K Lingam, S E J Connor, J W Casselman, T Beale
Imaging of middle-ear cholesteatoma with diffusion-weighted imaging (DWI) magnetic resonance imaging (MRI), and inner-ear endolymphatic hydrops (in Ménière's disease) with post-gadolinium high-resolution MRI, are reviewed. DWI MRI provides for a more specific diagnosis of tympano-mastoid cholesteatoma. There is an established and increasing role of DWI MRI in detecting both primary and postoperative cholesteatoma, localising disease, and planning surgery. The contemporary diagnostic accuracy of DWI is reviewed, pitfalls in interpretation are described, and potential future developments are highlighted...
January 2018: Clinical Radiology
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"