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tympanic bone

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https://www.readbyqxmd.com/read/29290312/comparison-of-transcanal-endoscopic-tympanoplasty-with-sterile-acellular-dermal-allograft-to-conventional-endaural-microscopic-tympanoplasty-with-tragal-perichondrium
#1
Jia Min, Se-Hyung Kim
OBJECTIVES: This study aimed to compare the outcome of endoscopic tympanoplasty with sterile acellular dermal allograft (ADA) and conventional endaural microscopic tympanoplasty with tragal perichondrium. METHODS: This was a retrospective comparative study of 53 patients (25 males and 28 females) with tympanic membrane perforation who underwent type I tympanoplasty in the department of otorhinolaryngology at a tertiary medical center from March 2011 to April 2017...
December 7, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29285624/balloon-dilatation-of-the-eustachian-tube-in-adult-patients-with-chronic-dilatory-tube-dysfunction-a-retrospective-cohort-study
#2
M C Satmis, M van der Torn
OBJECTIVES: The aim of this study is to assess the subjective and objective short-term results and safety of transnasal balloon dilatation of the Eustachian tube (BET) in adult patients with chronic dilatory Eustachian tube dysfunction (ETD). DESIGN: Retrospective cohort study. Data collection was performed preoperatively, 1 and 3 months after BET. SETTING: Tertiary referral hospital. PARTICIPANTS: A cohort of 42 consecutive patients (66 ears)...
December 29, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29258690/reliability-of-temporal-bone-high-resolution-ct-in-patients-with-facial-paralysis-in-temporal-bone-fracture
#3
Yuefeng Chen, Kai Zhang, Yanfeng Xu, Yanxu Che, Linna Guan, Yefeng Li
OBJECTIVE: This study aimed to investigate the reliability of temporal bone high-resolution CT (HRCT) in patients with traumatic facial paralysis. METHODS: HRCT with cross-sectional scanning and multi-planar reformation (MPR) was performed on 26 cases with traumatic facial paralysis, and the preoperative imaging manifestations were compared with surgical findings. RESULTS: Preoperative HRCT revealed fallopian canal damage at the posterior genu in 1 case, geniculate ganglion in 22 cases, labyrinthine segment in 4 cases, tympanic segment in 13 cases and mastoid segment in 0 case, while surgical findings confirmed fallopian canal damage at the posterior genu in 7 cases, geniculate ganglion in 23 cases, labyrinthine segment in 4 cases, tympanic segment in 17 cases and mastoid segment in 7 cases...
December 5, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29232394/external-auditory-exostoses-in-the-xuchang-and-xujiayao-human-remains-patterns-and-implications-among-eastern-eurasian-middle-and-late-pleistocene-crania
#4
Erik Trinkaus, Xiu-Jie Wu
In the context of Middle and Late Pleistocene eastern Eurasian human crania, the external auditory exostoses (EAE) of the late archaic Xuchang 1 and 2 and the Xujiayao 15 early Late Pleistocene human temporal bones are described. Xujiayao 15 has small EAE (Grade 1), Xuchang 1 presents bilateral medium EAE (Grade 2), and Xuchang 2 exhibits bilaterally large EAE (Grade 3), especially on the right side. These cranial remains join the other eastern Eurasian later Pleistocene humans in providing frequencies of 61% (N = 18) and 58% (N = 12) respectively for archaic and early modern human samples...
2017: PloS One
https://www.readbyqxmd.com/read/29229399/the-malleus-cap-anatomic-description-of-cartilage-of-the-lateral-process-of-the-malleus
#5
Elias Michaelides, Ankit Kansal, Sara Rutter, Christopher A Schutt
PURPOSE: To anatomically describe a cartilaginous cap attached to the lateral process of the malleus. STUDY DESIGN: Histologic and gross anatomic review. METHODS: Twenty temporal bones were histologically reviewed. The anatomical relationship between the tympanic membrane and malleus was then defined at the level of the lateral process of the malleus and the long process of the malleus. Separately, gross evaluation of these levels at the macroscopic level was undertaken through endoscopic imaging in five subjects...
October 25, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29224762/outcomes-of-tympanoplasty-in-children-with-down-syndrome
#6
Saied Ghadersohi, Jonathan B Ida, Bharat Bhushan, Kathleen R Billings
INTRODUCTION: The prevalence of chronic otitis media with effusion (COME), and Eustachian tube dysfunction (ETD) is high in Down syndrome (DS) patients. This often necessitates multiple tympanostomy tube (TT) placements resulting in a higher rate of persistent tympanic membrane (TM) perforation requiring tympanoplasty for repair. OBJECTIVES: To assess risk factors for persistent perforation and outcomes of tympanoplasty in DS patients. METHODS: Retrospective case series of 91 ears in 69 DS patients with TM perforations, who were either observed or underwent tympanoplasty...
December 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29210944/stapes-release-in-tympanosclerosis
#7
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/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
#8
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/29171341/diagnosis-of-a-tympanic-paraganglioma-with-ct-perfusion-imaging-a-technical-note-and-case-description
#9
Christoph J Maurer, Antje Aschendorff, Horst Urbach
Paragangliomas can be diagnosed accurately using magnetic resonance imaging and dynamic four-dimensional magnetic resonance angiography. Four-dimensional imaging uses the highly vascularised structure of these tumours, which results in a homogenous capillary blush and usually, due to the arteriovenous shunting, in an early draining vein. By these features the tumour can be differentiated from other neoplasms. The authors describe a case of a paraganglioma localised in the middle ear of an elderly patient. Magnetic resonance contraindications led to preoperative diagnostics with high resolution computed tomography of the temporal bone and additionally computed tomography perfusion imaging instead of magnetic resonance imaging with four-dimensional magnetic resonance angiography...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/29142872/isolated-tympanic-plate-fracture-detected-by-cone-beam-computed-tomography-report-of-four-cases-with-review-of-literature
#10
Ashita Ritesh Kalaskar, Ritesh Kalaskar
The tympanic plate is a small part of the temporal bone that separates the mandibular condyle from the external auditory canal. Fracture of this small plate is rare and usually associated with other bony fractures, mainly temporal and mandibular bone. There is a limited amount of literature on this subject, which increases the chance of cases being overlooked by physicians and radiologists. This is further supported by purely isolated cases of tympanic plate fracture without evidence of other bony fractures...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29121374/boomerang-shaped-vs-shield-shaped-chondroperichondrial-cartilage-grafts-for-type-1-tympanoplasty-in-children-a-study-of-121-patients
#11
Can Özbay, Fatih Kemal Soy, Erkan Kulduk, Riza Dundar, Ahmet Yükkaldiran, Osman Kadir Güler, Ertan Koç
Many techniques and graft materials have been used for the reconstruction of the tympanic membrane. We conducted a retrospective study to compare anatomic and functional outcomes of type 1 tympanoplasty that we performed with boomerang-shaped chondroperichondrial cartilage grafts (BSGs) and shield-shaped chondroperichondrial cartilage grafts (SSGs) in pediatric patients. Our study population was made up 121 patients-61 boys and 60 girls, aged 7 to 16 years (mean: 12.4)-who had undergone a type 1 tympanoplasty...
October 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29116047/factors-that-have-an-influence-on-bone-conduction-thresholds-changes-after-otosurgery-in-the-patients-operated-on-due-to-the-perforation-of-the-tympanic-membrane-with-the-preserved-ossicular-chain
#12
Maciej Wiatr, Agnieszka Wiatr, Sebastian Kocoń, Jacek Składzień
INTRODUCTION: The aim of the middle ear surgery is to eliminate abnormalities from the mucous, ensure the due airing of the postoperative cavity and reconstruct the sound-conducting system in the middle ear. Numerous reports can be found in literature on the changes to bone conduction as a consequence of middle ear surgery. STUDY OBJECTIVE: The aim of the work is to define the factors that affect bone conduction in the patients operated on due to the perforation of the tympanic membrane with the preserved and normal mobile ossicular chain...
August 31, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29099232/a-novel-imaging-method-for-the-cartilaginous-eustachian-tube-lumen-computerized-tomography-during-the-forced-response-test
#13
Cuneyt M Alper, Tanya J Rath, Miriam S Teixeira, J Douglas Swarts
OBJECTIVES: In vivo imaging of the open cartilaginous Eustachian tube (ET) lumen by computed tomography (CT) scan during ET function (ETF) testing to establish new methodology. METHODS: Five adults underwent unilateral ETF testing of an ear with a nonintact tympanic membrane using the forced response test (FRT) to measure the opening pressure (PO), steady state pressure (PS), and flow conductance (CS). Then at baseline and during the PS phase of the FRT, a temporal-bone CT scan with continuous 0...
November 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29072656/-the-endoscopic-anatomy-of-the-middle-ear-a-dissection-study
#14
R M Rzaev, R R Rzaev
The objective of the present work was to study the specific endoscopic anatomical features of the middle ear using the dissected temporal bones with the intact tympanic membrane. The 18 cm long endoscopes 4 mm in diameter with a visual angle from 0 to 45 degrees in the combination with some other microinstruments, such as ear pincers, needles, curettes, elevators, and suction tubes, were used during the examination. It was shown that endomeato-transtympanic endosopy provides a panoramic view of almost all structures of the middle ear...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/29068074/the-anterior-process-of-the-malleus-in-extant-lagomorpha-mammalia
#15
Wolfgang Maier, Adrian Tröscher, Irina Ruf
The anterior anchoring of the malleus of 30 extant species of Lagomorpha (rabbits, hares, pikas) has been studied on the basis of histological serial sections and µCT-scans. It is shown that former studies of Oryctolagus, Lepus, and Ochotona are incomplete, because the rostral part of the processus anterior of the malleus is always lacking due to damage of this extremely delicate structure. Our study shows that in perinatal stages of Leporidae the praearticulare develops a prominent processus internus that fits into a groove at the ventral side of the tegmen tympani; this "tongue and groove"-arrangement may act as a hinge...
October 25, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29050095/-revisional-radical-mastoidectomy-surgeries-25-cases-experience
#16
L Li, J Xie, Y Liu, S S Gong
Objective: To analyze the risk factors of failure to dry ear after radical mastoidectomy and discuss key points in revisonal surgery. Methods: Clinical data of 25 patients(32 ears) with revisonal mastoidectomy were analyzed. The preoperative temporal bone CT findings, intra-operative findings, surgical procedures, postoperative operating cavities and aural abilities were recorded and analyzed. Results: All patients received preoperative temporal bone CT followed by revisonal radical mastoidectomy under microscope and general anesthesia...
October 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29043904/effects-of-anesthesia-with-nitrous-oxide-on-tympanoplasty-outcomes-a-randomized-controlled-trial
#17
Ali Kouhi, Fatemeh Hajimohammadi, Sasan Dabiri, Amin Amali, Neda Enayati, Sahar Manavi, Niloufar Saeedi, Ziba Bidar
OBJECTIVES: To investigate effects of nitrous oxide (N2O), as inhalational anesthetic agent, on tympanoplasty outcomes. METHODS: In this randomized controlled trial, patients were randomized into two groups: 39 patients who received N2O as an inhalant anesthesia and 47 patients who did not receive. All were operated on with standard type of ear surgery. The protocol for the two groups was identical. Before surgery baseline audiometry was performed. Postoperative audiological controls were carried out at 3 months...
October 18, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29039235/short-term-subjective-and-objective-outcomes-of-patients-receiving-endoscopic-transcanal-myringoplasty-for-repairing-tympanic-perforations
#18
Chih-Chieh Tseng, Ming-Tang Lai, Chia-Che Wu, Sheng-Po Yuan, Yi-Fang Ding
Objective Endoscopic transcanal myringoplasty (ETM) has been an emerging technique for repairing tympanic perforations since the late 1990s. Objective outcomes (ie, graft success rates and hearing results) of patients who received ETM are well documented; however, subjective outcomes of these patients have rarely been reported. Hence, this study evaluated subjective and objective outcomes of patients who received ETM for repairing tympanic perforations. Study Design Prospective study. Setting Tertiary care university hospital...
October 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29018496/surgical-treatment-of-acquired-atresia-of-the-external-auditory-ear-canal
#19
Valerie Droessaert, Robby Vanspauwen, Erwin Offeciers, Andrzej Zarowski, Joost van Dinther, Thomas Somers
Introduction  Acquired atresia of the external auditory canal is characterized by the formation of fibrous tissue in the medial part. The causes include chronic otitis externa, perforated chronic otitis media, postoperative or idiopathic healing problems. Acquired atresia presents with hearing loss and can be associated with otorrhea. Objective  We analyzed the results of surgery after six months and two years by checking (1) pre- and postoperative hearing thresholds; (2) presence of otorrhea; and (3) whether a dry and patent ear canal is achieved...
October 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/29017231/-long-term-follow-up-and-patient-satisfaction-after-tympanoplasty-with-titanium-clip-prothesis
#20
Guido Wolferts, Daniel Schicke, K-Wolfgang Delank
Aim of the present study is to evaluate the long term results of ossiculoplasty using titanium clip prosthesis. A retrospective analysis with prospective follow-up has been done including for all patients who had a Clip-PORP implanted between the years 2002-2013. Following this, audiometric hearing results were measured with clinical examination including otoscopy and quality of life evaluation using Glasgow benefit inventory. 48 patients (51 ears, 29 men, 19 women, average age 44.1 years) received followed up after an average duration of 6...
October 2017: Laryngo- Rhino- Otologie
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