keyword
MENU ▼
Read by QxMD icon Read
search

Intratympanic

keyword
https://www.readbyqxmd.com/read/27898607/effects-of-intratympanic-dexamethasone-on-high-dose-radiation-ototoxicity-in-vivo
#1
Christine T Dinh, Si Chen, John Dinh, Stefania Goncalves, Esperanza Bas, Kyle Padgett, Perry Johnson, Nagy Elsayyad, Fred Telischi, Thomas Van De Water
BACKGROUND: Stereotactic radiosurgery for lateral skull base tumors can cause hearing loss when the cochleae are exposed to high doses of single-fraction radiation. Currently, there are no known nondosimetric preventative treatments for radiation-induced ototoxicity. HYPOTHESIS: Intratympanic (IT) dexamethasone (DXM), a synthetic steroid, protects against radiation-induced auditory hair cell (HC) and hearing losses in rats in vivo. METHODS: Seven rats received radiation (12 Gy) to both cochleae...
November 24, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27897129/a-pilot-study-using-intratympanic-methylprednisolone-for-treatment-of-persistent-posterior-canal-benign-paroxysmal-positional-vertigo
#2
Paz Pérez, Virginia Franco, Manuel Oliva, José A López Escámez
OBJECTIVE: To assess the effect of intratympanic methylprednisolone (ITMP) in posterior canal benign paroxysmal positional vertigo (BPPV) that fails treatment involving repositioning maneuver in a case series. MATERIALS AND METHODS: Nine patients with persistent posterior canal BPPV after 6 or more repositioning maneuvers were treated by ITMP (two weekly doses of 0.3-0.4 mL at 40 mg/mL) before repeating the repositioning procedures. RESULTS: Following ITMP treatment, 7 out of 9 patients were relieved of their symptoms and did not exhibit positional nystagmus after 1 or 2 repositioning maneuvers...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27894374/autologous-intratympanic-blood-patch-for-presumed-perilymphatic-fistulas
#3
P K Foster
OBJECTIVE: To assess an alternative to bed rest and surgery for suspected perilymphatic fistulas using intratympanic blood injections. METHOD: A review was conducted of patients' history, physical and audiometric data, before and after treatment by intratympanic blood injections performed from 2009 to 2015. RESULTS: Twelve ears were identified, with trauma associated with air travel, water sports or nose blowing. Ten of these cases had hearing loss, six had vestibular symptoms...
November 29, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27865535/intratympanic-methylprednisolone-versus-gentamicin-in-patients-with-unilateral-m%C3%A3-ni%C3%A3-re-s-disease-a-randomised-double-blind-comparative-effectiveness-trial
#4
Mitesh Patel, Kiran Agarwal, Qadeer Arshad, Mohamed Hariri, Peter Rea, Barry M Seemungal, John F Golding, Jonny P Harcourt, Adolfo M Bronstein
BACKGROUND: Ménière's disease is characterised by severe vertigo attacks and hearing loss. Intratympanic gentamicin, the standard treatment for refractory Ménière's disease, reduces vertigo, but damages vestibular function and can worsen hearing. We aimed to assess whether intratympanic administration of the corticosteroid methylprednisolone reduces vertigo compared with gentamicin. METHODS: In this double-blind comparative effectiveness trial, patients aged 18-70 years with refractory unilateral Ménière's disease were enrolled at Charing Cross Hospital (London, UK) and Leicester Royal Infirmary (Leicester, UK)...
November 16, 2016: Lancet
https://www.readbyqxmd.com/read/27861924/intratympanic-dexamethasone-in-sudden-sensorineural-hearing-loss-a-systematic-review-and-meta-analysis
#5
REVIEW
Nagi G El Sabbagh, Maida J Sewitch, Aren Bezdjian, Sam J Daniel
OBJECTIVE: Systemic dexamethasone has demonstrated conclusive benefits in reversing sudden sensorineural hearing loss (SSNHL) despite considerable number of potential side effects. In contrast, the intratympanic route of steroid administration averts several possible complications. This study aims to examine the literature to delineate the efficacy and side effect of intratympanic dexamethasone (ITD) injection for the treatment of SSNHL. DATA SOURCE: Cochrane, Embase, and MEDLINE electronic databases from January 1950 to August 2014, with an update performed on November 10, 2014...
November 15, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27821219/effects-of-two-different-local-anaesthetic-methods-vs-no-anaesthesia-on-pain-scores-for-intratympanic-injections
#6
N Ata, O Erdur, M H Görgülü, E Yilmaz
OBJECTIVE: This study compared the pain associated with the intratympanic injection combined with various local anaesthetics vs without anaesthesia. METHODS: The study included 40 patients (aged 18-78 years) who received intratympanic steroid injections for sudden idiopathic hearing loss or tinnitus. Each patient underwent all three injection methods at one-week intervals. Patients received one of two local anaesthetics (lidocaine injection or lidocaine spray) or no anaesthesia before intratympanic injection, and used a visual analogue scale to indicate the pain level after 5 and 45 minutes...
November 8, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27812817/translabyrinthine-vestibular-neurectomy-and-simultaneous-cochlear-implant-for-m%C3%A3-ni%C3%A3-re-s-disease
#7
Pietro Canzi, Marco Manfrin, Marco Perotti, Federico Aprile, Silvia Quaglieri, Elisabetta Rebecchi, Giulia Locatelli, Marco Benazzo
BACKGROUND: Surgical management of Ménière's disease (MD) is recommended in case of medical and intratympanic treatment failures. Translabyrinthine vestibular nerve section has been considered the gold standard for denervation procedures in order to control vertigo attacks, although at the cost of sacrificing residual hearing. To the best of our knowledge, no work has been published with regard to a group of patients submitted to translabyrinthine vestibular neurectomy and simultaneous cochlear implant for MD...
November 4, 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27779563/hearing-changes-after-intratympanically-applied-steroids-for-primary-therapy-of-sudden-hearing-loss-a-meta-analysis-using-mathematical-simulations-of-drug-delivery-protocols
#8
Arne Liebau, Olivia Pogorzelski, Alec N Salt, Stefan K Plontke
OBJECTIVE: Controlled and uncontrolled studies with primary intratympanic or combined intratympanic and systemic application of glucocorticosteroids for idiopathic sudden hearing loss were analyzed by means of a meta-analysis in an attempt to establish optimal local drug delivery protocols. STUDY DESIGN: A total of 25 studies with 28 treatment groups between January 2000 and June 2014 were selected that adequately described drug delivery protocols. Cochlear drug levels were calculated by a validated computer model of drug dispersion in the inner ear fluids based on the concentration and volume of glucocorticoids applied, the time the drug remained in the middle ear, and the specific timing of injections...
October 21, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27757480/-intracochlear-drug-delivery-in-combination-with-cochlear-implants-current-aspects
#9
S K Plontke, G Götze, T Rahne, A Liebau
Local drug application to the inner ear offers a number of advantages over systemic delivery. Local drug therapy currently encompasses extracochlear administration (intratympanic injection); intracochlear administration, particularly for gene and stem cell therapy; as well as various combinations with auditory neurosensory prostheses, either evaluated in preclinical or clinical studies, or off-label. To improve rehabilitation with cochlear implants (CI), one focus is the development of drug-releasing electrode carriers, e...
October 18, 2016: HNO
https://www.readbyqxmd.com/read/27752909/changes-in-endolymphatic-hydrops-visualized-by-magnetic-resonance-imaging-after-sac-surgery
#10
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/27751619/rate-of-tympanic-membrane-perforation-after-intratympanic-steroid-injection
#11
Michael C Topf, David W Hsu, Douglas R Adams, Tingting Zhan, Stanley Pelosi, Thomas O Willcox, Brian McGettigan, Kyle W Fisher
PURPOSE: To determine the rate of persistent tympanic membrane perforation after intratympanic steroid injection. To determine which comorbid conditions and risk factors are associated with prolonged time to perforation closure following intratympanic steroid injection. MATERIALS AND METHODS: Clinical data were gathered for patients who had undergone intratympanic steroid injection to treat sudden sensorineural hearing loss or Ménière's disease. Primary outcomes analysis included rate of persistent tympanic membrane perforation, defined as perforation at least 90days following last injection, and time to perforation healing...
September 28, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27749754/intratympanic-sustained-exposure-dexamethasone-thermosensitive-gel-for-symptoms-of-m%C3%A3-ni%C3%A3-re-s-disease-randomized-phase-2b-safety-and-efficacy-trial
#12
Paul R Lambert, John Carey, Anthony A Mikulec, Carl LeBel
OBJECTIVE: To evaluate safety and efficacy of a single intratympanic injection of OTO-104, sustained-exposure dexamethasone, in patients with unilateral Ménière's disease. STUDY DESIGN: Randomized, double-blind, placebo-controlled, Phase 2b study over 5 months. SETTING: Fifty-two academic and community otolaryngology centers. PATIENTS: One hundred fifty four patients (77 per group) aged 18 to 85 years inclusive. INTERVENTION: Single intratympanic injection of OTO-104 (12 mg dexamethasone) or placebo...
September 30, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27725177/perilymph-pharmacokinetics-of-locally-applied-gentamicin-in-the-guinea-pig
#13
A N Salt, J J Hartsock, R M Gill, E King, F B Kraus, S K Plontke
Intratympanic gentamicin therapy is widely used clinically to suppress the vestibular symptoms of Meniere's disease. Dosing in humans was empirically established and we still know remarkably little about where gentamicin enters the inner ear, where it reaches in the inner ear and what time course it follows after local applications. In this study, gentamicin was applied to the round window niche as a 20 μL bolus of 40 mg/ml solution. Ten 2 μL samples of perilymph were collected sequentially from the lateral semi-circular canal (LSCC) at times from 1 to 4 h after application...
October 8, 2016: Hearing Research
https://www.readbyqxmd.com/read/27650470/repeated-courses-of-intratympanic-dexamethasone-injection-are-effective-for-intractable-meniere-s-disease
#14
Yangming Leng, Bo Liu, Renhong Zhou, Jingjing Liu, Dongdong Liu, Su-Lin Zhang, Wei-Jia Kong
CONCLUSION: Intra-tympanic dexamethasone injection (ITD) could serve as a first-line intra-tympanic (IT) treatment for Meniere's disease (MD), regardless of hearing level. Even if the response to initial ITD course was unsatisfactory, a repeated course may be beneficial with some patients. OBJECTIVES: This study examined the effect of repeated courses of ITD administered on demand and investigated the possibility of ITD as an initial IT treatment for medically intractable MD patients...
September 21, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27642664/response-to-letter-to-the-editor-electrocochleography-versus-mri-with-intratympanic-contrast-in-m%C3%A3-ni%C3%A3-re-s-disease
#15
Fuat Ziylan, Diederik P J Smeeing, Inge Stegeman, Hans G X M Thomeer
No abstract text is available yet for this article.
September 16, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27638077/meni%C3%A3-re-s-disease
#16
J M Espinosa-Sanchez, J A Lopez-Escamez
Menière's disease (MD) is a chronic multifactorial disorder of the inner ear characterized by episodic vestibular symptoms associated with sensorineural hearing loss, tinnitus, and aural pressure. Epidemiologic and genomic evidence supports a genetic susceptibility with multiple biochemical pathways involved, including the endocrine system, innate immune response, and autonomic nervous system. Allergens, infectious agents, vascular events, or genetic factors could modify inner-ear homeostasis and trigger MD...
2016: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27623821/is-gentamycin-delivery-via-sustained-release-vehicles-a-safe-and-effective-treatment-for-refractory-meniere-s-disease-a-critical-analysis-of-published-interventional-studies
#17
Petros V Vlastarakos, Emily Iacovou, Thomas P Nikolopoulos
The aim of this study is to review the literature on sustained-release vehicles delivering gentamycin in the inner ear of patients suffering from Meniere's disease (MD), and critically assess their respective clinical effectiveness and safety. A systematic literature review was conducted in Medline and other database sources until January 2016, along with critical analysis of pooled data. Overall, six prospective and four retrospective studies were systematically analyzed. The total number of treated patients was 320...
September 13, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27584905/safety-and-efficacy-of-chitosan-dextran-hydrogel-in-the-middle-ear-in-an-animal-model
#18
Selin Ünsaler, Bora Başaran, Şule Öztürk Sarı, Eyüp Kara, Kemal Değer, Peter John Wormald
OBJECTIVES: To investigate the efficacy of chitosan-dextran hydrogel (CDH) in preventing postoperative adhesions between the tympanic membrane (TM) and intratympanic structures, and to evaluate its ototoxicity in an animal study. METHODS: In the first step, ototoxicity was evaluated with 7 male albino guinea pigs (GPs) via auditory brainstem responses (ABR) before and 4 weeks after unilateral intratympanic injection of CDH and saline solution contralaterally. In the second step, 12 GPs underwent bilateral ear surgery...
September 2, 2016: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/27569857/hippocampal-and-striatal-m1-muscarinic-acetylcholine-receptors-are-down-regulated-following-bilateral-vestibular-loss-in-rats
#19
Phillip Aitken, Alice Benoit, Yiwen Zheng, Bruno Philoxene, Anne Le Gall, Pierre Denise, Stephane Besnard, Paul F Smith
Permanent vestibular loss has detrimental effects on the hippocampus, resulting in a disruption to spatial learning and memory, hippocampal theta rhythm and place cell field spatial coherence. Little is known about the vestibular system-related hippocampal cholinergic transmission. Since the pharmacological blockade of muscarinic acetylcholine (ACh) receptors within the hippocampus produces deficits in learning and memory, we hypothesized that ACh receptors may at least partly support the integration of vestibular input...
December 2016: Hippocampus
https://www.readbyqxmd.com/read/27552828/successful-continual-intratympanic-steroid-injection-therapy-in-a-patient-with-refractory-sensorineural-hearing-loss-accompanied-by-relapsing-polychondritis
#20
Koichiro Wasano, Shuta Tomisato, Sayuri Yamamoto, Noriomi Suzuki, Taiji Kawasaki, Kaoru Ogawa
OBJECTIVE: To report the treatment efficacy of continual intratympanic steroid injection (ITSI) therapy in a patient with refractory sensorineural hearing loss accompanied by relapsing polychondritis. PATIENT: A 49-year-old female diagnosed with relapsing polychondritis at the age of 45 years and who had been treated with corticosteroids and immunosuppressants developed sensorineural hearing loss in the left ear. INTERVENTION: Her unilateral hearing loss did not recover despite receiving one cyclophosphamide pulse treatment, one methylprednisolone pulse treatment, and weekly leukapheresis...
August 20, 2016: Auris, Nasus, Larynx
keyword
keyword
31706
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"