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https://www.readbyqxmd.com/read/29456940/mrmc-neo-surgical-ventilating-port-and-neo-attic-malleo-incudal-complex-in-endoscopic-management-of-limited-attico-antral-cholesteatoma
#1
C B Nandyal, Mithun Sutrave, Vinayak Kurle, Pallavi A Harsoor
To study functional outcome of the endoscopic management of limited attico-antral cholesteatoma in terms of visualization of sac, cholesteatoma disease clearance, ABG closure improvement, preservation of residual anatomy and recurrence of disease. It is a prospective study done during Feb 2016 to March 2017 done on 20 pts with limited attico-antral cholesteatoma with CT confirmation. Endoscopic management of limited attico-antral cholesteatoma with complete removal of sac, infected discharge and granulations along with creation of MRMC Neo surgical ventilating port (joining Anterior & posterior isthmuses) done in cases where residual attic anatomy was present to establish physiological attic ventilation and drainage...
March 2018: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29456937/to-evaluate-and-compare-the-result-of-ossiculoplasty-using-different-types-of-graft-materials-and-prosthesis-in-cases-of-ossicular-discontinuity-in-chronic-suppurative-otitis-media-cases
#2
Suresh Kumar, Kanak Yadav, Tarun Ojha, Abhishek Sharma, Amit Singhal, Saurabh Gakhar
Chronic suppurative otitis media, with and without cholesteatoma, frequently results in disruption of the ossicular chain. The present study was designed to compare the outcome using autologous ossicle and titanium prosthesis in two groups of suitable patients presenting with chronic suppurative otitis media for middle ear reconstructive surgeries. A prospective study done from July 2012 to December 2013, at Mahatma Gandhi Medical College and Hospital, Sitapura, Jaipur (Rajasthan). The target group included patients with chronic suppurative otitis media admitted and planned for reconstructive middle ear surgery...
March 2018: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29454371/auditory-effects-of-autologous-fat-graft-for-torp-stabilization-in-the-middle-ear-a-cadaveric-study
#3
Margaret Aron, Thomas G Landry, Manohar Bance
BACKGROUND: Total ossicular replacement prostheses (TORP) are often used to re-establish ossicular coupling of sound in an ear lacking a stapes supra-structure. The use of TORPs, however, is associated with a 2/3 five year failure rate due to their anatomic instability over time in the middle ear. The use of autologous fat to try and stabilize TORPs may improve long-term results with this challenging ossicular reconstruction technique. METHODS: A cadaveric temporal bone model was developed and laser Doppler vibrometry was used to measure and record round window membrane vibration in response to sound stimulation under the following conditions: normal middle ear, middle ear filled with fat, normal middle ear with TORP prosthesis, TORP prosthesis with fat around its distal end and TORP prosthesis with fat filling the middle ear...
February 17, 2018: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29447898/challenges-and-outcomes-of-cholesteatoma-management-in-children-with-down-syndrome
#4
Saied Ghadersohi, Bharat Bhushan, Kathleen R Billings
INTRODUCTION: The high incidence of chronic otitis media with effusion and Eustachian tube dysfunction in children with Down syndrome (DS) may predispose them to cholesteatoma formation. Establishing the diagnosis, choosing the appropriate operative intervention, and post-operative care can be challenging. OBJECTIVE: To describe management strategies for cholesteatoma diagnosis, surgical treatment, and post-operative management in children with Down syndrome. METHODS: Retrospective case series of 14 patients (17 total ears) with Down syndrome diagnosed with cholesteatoma over a 9-year period...
March 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29428492/the-gray-scale-value-of-ear-tissues-undergoing-volume-rendering-high-resolution-cone-beam-computed-tomography
#5
Masahiro Komori, Shinya Miuchi, Jun Hyodo, Taisuke Kobayashi, Masamitsu Hyodo
OBJECTIVE: When the thresholds for VR reconstruction from multi-slice CT images are changed, problems develop when assessing pathologies in the absence of standardized thresholds. The advantages of CBCT include lower radiation exposure compared with other techniques and better visualization of small ear structures. However, a disadvantage is that the scanner provides unstandardized gray scale values, thus not CT numbers (Hounsfield units, HU). METHODS: We analyzed 88 sets of volume data obtained from temporal bones...
February 7, 2018: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29392058/comparison-of-hydroxyapatite-prosthesis-and-incus-interposition-in-incus-defects
#6
Suphi Bulğurcu, Bünyamin Dikilitaş, İbrahim Çukurova
Objective: Chronic otitis media most commonly causes an ossicular chain defect in incus. Different materials can be used for repair of this defect. In this study, the hydroxyapatite prosthesis, used for repair of the incus defect, was compared with the incus interposition. Methods: Between 2010 and 2016, 27 female and 16 male patients who underwent ossiculoplasty due to an incus defect were studied retrospectively. Patients' hearing results at the sixth month were compared...
June 2017: Turkish Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/29390789/pressurized-transient-otoacoustic-emissions-measured-using-click-and-chirp-stimuli
#7
Douglas H Keefe, M Patrick Feeney, Lisa L Hunter, Denis F Fitzpatrick, Chris A Sanford
Transient-evoked otoacoustic emission (TEOAE) responses were measured in normal-hearing adult ears over frequencies from 0.7 to 8 kHz, and analyzed with reflectance/admittance data to measure absorbed sound power and the tympanometric peak pressure (TPP). The mean TPP was close to ambient. TEOAEs were measured in the ear canal at ambient pressure, TPP, and fixed air pressures from 150 to -200 daPa. Both click and chirp stimuli were used to elicit TEOAEs, in which the incident sound pressure level was constant across frequency...
January 2018: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29355069/hearing-results-after-type-iii-tympanoplasty-incus-transpositionversus-porp-a-systematic-review
#8
Ricardo Bartel, Francesc Cruellas, Miriam Hamdan, Xavier Gonzalez-Compta, Enric Cisa, Ivan Domenech, Manel Manos
OBJECTIVE: The objective of this study is to compare hearing improvements in the air-bone gap (ABG) after type III tympanoplasties, comparing between incus transposition (IT) and partial ossicular replacement prosthesis (PORP). MATERIALS AND METHODS: Publications in English were searched in PUBMED database and were systematically reviewed. A total of 14 articles were included, obtaining 1055 patients, 614 for the IT group and 441 for the PORP group. Preoperative ABG, postoperative ABG, dB gain and ABG closure rate were compared...
January 21, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29342049/the-impact-of-the-transcanal-endoscopic-approach-and-mastoid-preservation-on-recurrence-of-primary-acquired-attic-cholesteatoma
#9
Livio Presutti, Lukas Anschuetz, Alessia Rubini, Marco Ruberto, Matteo Alicandri-Ciufelli, Marco Dematte, Marco Caversaccio, Daniele Marchioni
OBJECTIVE: We aim to investigate the factors associated with recurrent disease following surgery for primary acquired attic cholesteatoma. We hypothesize that minimal invasive, mucosal sparing operation techniques have beneficial effects on the outcome in terms of recurrence. STUDY DESIGN: Retrospective study. SETTING: Tertiary referral center. PARTICIPANTS: A total of 110 patients presenting with primary acquired attic cholesteatoma were enrolled in the study...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342039/an-optimal-partial-ossicular-prosthesis-should-connect-both-to-the-tympanic-membrane-and-malleus-a-temporal-bone-study-using-laser-doppler-vibrometry
#10
Anders Niklasson, Kilian Gladiné, Anton Rönnblom, Magnus von Unge, Joris Dirckx, Krister Tano
OBJECTIVE: To compare stapes vibrations in different partial ossicular replacement prosthesis (PORP) applications. METHODS: Stapedial vibrations were measured on fresh frozen human temporal bones with laser Doppler vibrometry. Eight different types of common ossiculoplasty methods were compared regarding recovery of stapes vibrations in relation with the normal ossicular chain. The PORPs were divided into three groups: 1) PORPs with the lateral contact only with the tympanic membrane, 2) PORPs with lateral contact only to the malleus handle, and 3) PORPs with lateral contact with both the malleus handle and the tympanic membrane...
March 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29326537/total-ossicular-replacement-prosthesis-a-new-fat-interposition-technique
#11
Issam Saliba, Valérie Sabbah, Jackie Bibeau Poirier
Objective: To compare audiometric results between the standard total ossicular replacement prosthesis (TORP-S) and a new fat interposition total ossicular replacement prosthesis (TORP-F) in pediatric and adult patients and to assess the complication and the undesirable outcome. Study design: This is a retrospective study. Methods: This study included 104 patients who had undergone titanium implants with TORP-F and 54 patients who had undergone the procedure with TORP-S between 2008 and 2013 in our tertiary care centers...
2018: Clinical Medicine Insights. Ear, Nose and Throat
https://www.readbyqxmd.com/read/29313370/bilateral-ossicular-head-dehiscence-into-the-middle-cranial-fossa
#12
Sameer A Alvi, Joel W Jones, Jim Lin
OBJECTIVES: To describe a unique case of bilateral dehiscence of the malleus and incus heads into the middle fossa making contact with the temporal lobes, along with its clinical implications. METHODS: An analysis of a patient case and review of pertinent literature were performed. RESULTS: A patient with a history of right-sided mastoidectomy for cholesteatoma was evaluated for persistent conductive hearing loss. On computed tomography (CT) and magnetic resonance imaging (MRI), the patient had a complete dehiscence of the tegmen tympani on the right, with ossicular heads being located above the floor of the middle cranial fossa...
March 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29279725/tympanoplasty-news-and-new-perspectives
#13
REVIEW
Marcus Neudert, Thomas Zahnert
Techniques and biomaterials for reconstructive middle ear surgery are continuously and steadily developing. At the same time, clinical post-surgery results are evaluated to determine success or failure of the therapy. Routine quality assessment and assurance is of growing importance in the medical field, and therefore also in middle ear surgery. The exact definition and acquisition of outcome parameters is essential for both a comprehensive and detailed quality assurance. These parameters are not the audiological results alone, but also additional individual parameters, which influence the postoperative outcome after tympanoplasty...
2017: GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery
https://www.readbyqxmd.com/read/29238674/incidence-and-preoperative-predictive-indicators-of-incudal-necrosis-in-csom-a-prospective-study-in-a-tertiary-care-centre
#14
Piyush Tripathi, Shivani Nautiyal
Both type of CSOM, tubotympanic which is considered safe as well as atticoantral which is considered unsafe may lead to erosion of the ossicular chain. Discontinuity of the ossicular chain is typically confirmed only during an operation. Knowing before surgery whether the patient has an ossicular discontinuity is important because it allows the surgeon to know the possibility of performing an ossiculoplasty and obtaining patient consent. The aims is to (1) study the incidence of incus necrosis in safe and unsafe CSOM...
December 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29210944/stapes-release-in-tympanosclerosis
#15
Es-Hak Bedri, Nebiat Teferi, Miriam Redleaf
: Tympanosclerosis in the middle ear space is common in Ethiopia and often involves the ossicles and particularly the stapes. Ear operations in Ethiopia are relatively expensive in this country of limited medical resources and a low average living wage. In this setting, 2-stage operations using prostheses become prohibitively expensive. Therefore, the recommended 2-stage approach for tympanic membrane perforation with tympanosclerosis and stapes fixation is impractical for Ethiopia.We present a series of 67 patients who had a single stage tympanoplasty, removal of tympanosclerosis from the stapes suprastructure, and ossicular chain reconstruction using ossicular interposition...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29209853/3d-endoscopic-ear-surgery-a-clinical-pilot-study
#16
Daniele Bernardeschi, Ghizlene Lahlou, Daniele De Seta, Francesca Yoshie Russo, Isabelle Mosnier, Olivier Sterkers
OBJECTIVE: To evaluate the feasibility and efficacy of a new high-resolution 3D endoscope in endoscopic ear and lateral skull base surgery. METHODS: Eight patients, five women and three men, were included in this clinical pilot prospective study. Their age was 38 ± 17.3 years (mean ± SD, range 17-54 years). The right side was involved in five cases, and the left side in three cases. There were three cases of chronic otitis, one case of cholesteatoma of the external auditory canal, one case of otosclerosis, one case of cochlear implant surgery, and two cases of stage 2 vestibular schwannoma operated on with a retrosigmoid approach to preserve hearing...
February 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29205455/the-middle-and-inner-ears-of-the-palaeogene-golden-mole-namachloris-a-comparison-with-extant-species
#17
Matthew J Mason, Nigel C Bennett, Martin Pickford
Many living species of golden moles (Chrysochloridae) have greatly enlarged middle ear ossicles, believed to be used in the detection of ground vibrations through inertial bone conduction. Other unusual features of chrysochlorids include internally coupled middle ear cavities and the loss of the tensor tympani muscle. Our understanding of the evolutionary history of these characteristics has been limited by the paucity of fossil evidence. In this article, we describe for the first time the exquisitely preserved middle and inner ears of Namachloris arenatans from the Palaeogene of Namibia, visualised using computed tomography, as well as ossicles attributed to this species...
December 4, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29192304/association-of-hearing-loss-and-otologic-outcomes-with-fibrous-dysplasia
#18
Alison M Boyce, Carmen Brewer, Timothy R DeKlotz, Christopher K Zalewski, Kelly A King, Michael T Collins, H Jeffrey Kim
Importance: Fibrous dysplasia (FD) and McCune-Albright syndrome (MAS) are rare bone and endocrine disorders in which expansile fibro-osseous lesions result in deformity, pain, and functional impairment. The effect of FD on hearing and otologic function has not been established. Objectives: To characterize audiologic and otologic manifestations in a large cohort of individuals with FD/MAS and to investigate potential mechanisms of hearing loss. Design, Setting, and Participants: In this natural history study, individuals with craniofacial FD seen at a clinical research center underwent clinical, biochemical, computed tomographic, audiologic, and otolaryngologic evaluations...
November 30, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29190487/minimally-invasive-laser-vibrometry-mivib-with-a-floating-mass-transducer-a-new-method-for-objective-evaluation-of-the-middle-ear-demonstrated-on-stapes-fixation
#19
Jeremy Wales, Kilian Gladiné, Paul Van de Heyning, Vedat Topsakal, Magnus von Unge, Joris Dirckx
Ossicular fixation through otosclerosis, chronic otitis media and other pathologies, especially tympanosclerosis, are treated by surgery if hearing aids fail as an alternative. However, the best hearing outcome is often based on knowledge of the degree and location of the fixation. Objective methods to quantify the degree and position of the fixation are largely lacking. Laser vibrometry is a known method to detect ossicular fixation but clinical applicability remains limited. A new method, minimally invasive laser vibrometry (MIVIB), is presented to quantify ossicle mobility using laser vibrometry measurement through the ear canal after elevating the tympanic membrane, thus making the method feasible in minimally invasive explorative surgery...
November 20, 2017: Hearing Research
https://www.readbyqxmd.com/read/29169906/limits-on-normal-cochlear-third-windows-provided-by-previous-investigations-of-additional-sound-paths-into-and-out-of-the-cat-inner-ear
#20
John J Rosowski, Peter Bowers, Hideko H Nakajima
While most models of cochlear function assume the presence of only two windows into the mammalian cochlea (the oval and round windows), a position that is generally supported by several lines of data, there is evidence for additional sound paths into and out of the inner ear in normal mammals. In this report we review the existing evidence for and against the 'two-window' hypothesis. We then determine how existing data and inner-ear anatomy restrict transmission of sound through these additional sound pathways in cat by utilizing a well-tested model of the cat inner ear, together with anatomical descriptions of the cat cochlear and vestibular aqueducts (potential additional windows to the cochlea)...
November 10, 2017: Hearing Research
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