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https://www.readbyqxmd.com/read/27897128/defining-the-limits-of-endoscopic-access-to-internal-auditory-canal
#1
Adam Master, Mickie Hamiter, Maura Cosetti
OBJECTIVE: To quantify surgical access to the internal auditory canal (IAC) using an exclusively endoscopic transcanal approach (EETA) and investigate surgically relevant relationships with neurovascular and osseous landmarks of the temporal bone. MATERIALS AND METHODS: Anatomical dissection of two paired temporal bones and 15 unpaired temporal bones was performed using an exclusively endoscopic approach to IAC. The dissection proceeded until the cerebellopontine angle (CPA) could be accessed...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27879225/efficacy-of-posterior-canal-wall-reconstruction-using-autologous-auricular-cartilage-and-bone-p%C3%A3-t%C3%A3-in-chronic-otitis-media-with-cholesteatoma
#2
Min Kwan Baek, Sung Ho Choi, Dong Young Kim, Chang Hyun Cho, Yong Woo Kim, Kwang Ha Moon, Ju Hyoung Lee
OBJECTIVE: This study was designed to investigate the long-term results using the technique of canal wall up mastoidectomy and reconstruction of the posterior canal wall using bone pâté and auricular cartilage in the treatment of chronic otitis media with cholesteatoma. MATERIALS AND METHODS: A retrospective review was performed on 42 patients who underwent canal wall up mastoidectomy and posterior canal wall reconstruction at a single institution between November 2005 and November 2012...
November 23, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27878362/a-3-d-analysis-of-the-protympanum-in-human-temporal-bones-with-chronic-ear-disease
#3
Henrique F Pauna, Rafael C Monsanto, Patricia Schachern, Michael M Paparella, Sebahattin Cureoglu
Eustachian tube dysfunction is believed to be an important factor to cholesteatoma development and recurrence of disease after surgical treatment. Although many studies have described prognostic factors, evaluation methods, or surgical techniques for Eustachian tube dysfunction, they relied on the soft tissues of its structure; little is known about its bony structure-the protympanum-which connects the Eustachian tube to the tympanic cavity, and can also be affected by several inflammatory conditions, both from the middle ear or from the nasopharynx...
November 22, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27863632/soft-wall-reconstruction-of-the-canal-wall-with-retrograde-bone-work-for-pediatric-cholesteatoma-long-term-results
#4
Miyako Hatano, Makoto Ito, Hisashi Sugimoto, Masao Noda, Hiroki Hasegawa, Tomokazu Yoshizaki
OBJECTIVE: To retrospectively evaluate the long-term results of surgery for retrograde bone work, using soft-wall reconstruction of the canal wall, for pediatric cholesteatoma. METHODS: We retrospectively evaluated a series of 25 consecutive ears of 24 patients who were ≤16 years of age. All children underwent cholesteatoma surgery between October 2002 and August 2008. The type of cholesteatoma, the length of follow-up, the incidence of residual and recurrent cholesteatoma, postoperative hearing results, and the form of the reconstructed external canal wall and tympanic membrane were assessed...
December 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27861950/comparison-of-the-efficacy-of-endoscopic-tympanoplasty-and-microscopic-tympanoplasty-a-systematic-review-and-meta-analysis
#5
REVIEW
Chih-Chieh Tseng, Ming-Tang Lai, Chia-Che Wu, Sheng-Po Yuan, Yi-Fang Ding
OBJECTIVES: Microscopic tympanoplasty has been the standard surgery for repairing perforated tympanic membranes since the 1950s, but endoscopic tympanoplasty has been increasingly practiced since the late 1990s. In this study, we compared the efficacies of endoscopic and microscopic tympanoplasty. DATA SOURCES: PubMed, Embase, MEDLINE, and the Clinical Trial Register. REVIEW METHODS: We conducted a systematic review and meta-analysis following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement...
November 9, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27833874/effect-of-type-1-tympanoplasty-on-the-quality-of-life-of-csom-patients
#6
Khyati Bhatia, Lakshmi Vaid, H C Taneja
Chronic suppurative otitis media (CSOM) continues to be an important public health problem despite significant advances in medical science. Ear discharge, pain, discomfort, difficulty in hearing, limitation of routine activities and emotional problems due to CSOM cause a significant impact on the health and general well being of the patient. We have done Type 1 tympanoplasty in tubotympanic type of COM to reconstruct the tympanic membrane and alleviate the symptoms of the patients. This study presents an analysis of the impact of the surgery on the patient subjectively and its correlation with objective outcomes...
December 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27761737/middle-ear-adenoma-with-neuroendocrine-differentiation-a%C3%A2-pediatric-case-report
#7
Elisabeth Sterrer, Franz Windisch, Kurt Frey, Klaus Rettensteiner, Benjamin Loader
BACKGROUND: Middle ear adenoma with neuroendocrine differentiation (MEA-ND), also known as carcinoid tumor of the middle ear, is an extremely rare neoplasm, especially when located within the tympanic cavity. To the best of our knowledge, this represents the first pediatric case of a MEA-ND described in Europe. Excluding the present case, only three other pediatric cases of this disease have been published globally. CASE REPORT: We report on a 15-year-old female patient who presented with conductive hearing loss of the right ear...
October 19, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27755370/outcomes-of-drill-canalplasty-in-exostoses-and-osteoma-analysis-of-256-cases-and-literature-review
#8
Golda Grinblat, Sampath Chandra Prasad, Gianluca Piras, Jingchun He, Abdelkader Taibah, Alessandra Russo, Mario Sanna
OBJECTIVE: 1) To describe the surgical technique of drill canaplasty for exostosis and osteoma and to evaluate our results. 2) To propose a new grading system for external auditory canal stenosis (EACS). 3) To review the recent literature. STUDY DESIGN: A retrospective review. SETTING: Quarternary referral center for Otology & Skull Base surgery. SUBJECTS AND METHODS: Two hundred seventeen patients (256 ears) with exostosis or osteoma were included in the study...
December 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27749753/the-first-reported-case-of-recurrent-carcinoid-tumor-in-the-external-auditory-canal
#9
Hilary C McCrary, Erynne A Faucett, Saranya Reghunathan, F Zahra Aly, Rihan Khan, Raymond F Carmody, Abraham Jacob
OBJECTIVE: Cutaneous neuroendocrine lesions of the external auditory canal (EAC) are exceptionally rare, with only five cases reported in the literature. In this case report, we present a patient with a recurrent carcinoid tumor in the EAC, which has yet to be described. PATIENTS: A 38-year-old woman presenting with otalgia, aural fullness, and decreased hearing was found to have a recurrent EAC carcinoid tumor, 8-years after initial resection at an outside facility...
September 30, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27729143/myringoplasty-in-children
#10
Noa Rozendorn, Michael Wolf, Arkadi Yakirevich, Yisgav Shapira, Eldar Carmel
BACKGROUND: Tympanic membrane perforation (TMP) may be caused by acute and chronic otitis media, trauma and iatrogenic reasons. The goal of myringoplasty is to achieve a dry, self-cleansing ear with intact TM while preserving hearing. Literature review of myringoplasty outcome demonstrates results with different success rates and affecting factors. OBJECTIVES: The aim of this study was to evaluate TMP closure (TMPC) rate and hearing improvement and to assess the effect of clinical and surgical parameters on residual and recurrent perforation...
November 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27671643/morphology-and-function-of-neandertal-and-modern-human-ear-ossicles
#11
Alexander Stoessel, Romain David, Philipp Gunz, Tobias Schmidt, Fred Spoor, Jean-Jacques Hublin
The diminutive middle ear ossicles (malleus, incus, stapes) housed in the tympanic cavity of the temporal bone play an important role in audition. The few known ossicles of Neandertals are distinctly different from those of anatomically modern humans (AMHs), despite the close relationship between both human species. Although not mutually exclusive, these differences may affect hearing capacity or could reflect covariation with the surrounding temporal bone. Until now, detailed comparisons were hampered by the small sample of Neandertal ossicles and the unavailability of methods combining analyses of ossicles with surrounding structures...
October 11, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27659376/encountering-a-high-jugular-bulb-during-ear-surgery
#12
R Fox, R Nash, T Tatler
Encounters with jugular bulb abnormalities during ear surgery are a rare but recognised problem. A high riding jugular bulb is present in 10%-15% of patients and its variable position within the temporal bone can lead to problems as brisk venous haemorrhage can result if the bulb is inadvertently opened. The case of a 52-year-old woman with a central tympanic membrane perforation who underwent elective endaural myringoplasty and experienced brisk bleeding on raising the tympanomeatal flap is presented.
September 23, 2016: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/27637761/micro-ct-study-of-the-dehiscences-of-the-tympanic-segment-of-the-facial-canal
#13
Magdalena Kozerska, Janusz Skrzat, Alexandru Spulber, Jerzy Walocha, Sebastian Wroński, Jacek Tarasiuk
PURPOSE: To depict the anatomy of the tympanic segment of the facial canal using a 3D visualization technique, to detect dehiscences, and to evaluate their frequency, location, shape, and size. METHODS: Research included 36 human temporal bones (18 infant and 18 adult samples) which were scanned using a Nanotom 180N device. The final resolution of the reconstructed object was 18 µm. Obtained micro-CT data were subsequently processed by the volume rendering software...
September 16, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27631661/impact-of-prosthesis-length-on-tympanic-membrane-s-and-annular-ligament-s-stiffness-and-the-resulting-middle-ear-sound-transmission
#14
Marcus Neudert, Matthias Bornitz, Nikoloz Lasurashvili, Uwe Schmidt, Thomas Beleites, Thomas Zahnert
HYPOTHESIS: Prosthesis' length creates tension in ossicular reconstructions, which directly effects the middle ear sound transmission. BACKGROUND: Relatively long prostheses are often used to stabilize the middle ear reconstruction to prevent dislocation. Thereby, tension on the flexible components such as the tympanic membrane (TM) and the annular ligament (AL) is increased. Only little is known on the amount of displacement-related stiffening of the TM and AL, as well as the consecutive reduction in middle ear transfer function (METF)...
October 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27627972/revision-myringoplasty-using-thin-sliced-cartilage-for-postoperative-reperforation-in-patients-with-chronic-otitis-media
#15
Hideaki Suzuki, Hiroki Koizumi, Takuro Kitamura, Takahisa Tabata, Yasuhiro Kise, Koichi Hashida
Myringoplasty is one of the basic procedures in otologic surgery, and is important to achieve good hearing outcome. The temporal fascia is most widely used and considered to be a stable graft in this procedure, although 10-20% of patients develop reperforation after surgery, which is often hard to repair, even by revision surgery. We herein conducted revision myringoplasty using a cartilage graft to repair postoperative reperforation in 7 patients (8 ears) with chronic otitis media. The patients were 3 males and 4 females, aged 13-80 years with an average of 53...
September 2016: Journal of UOEH
https://www.readbyqxmd.com/read/27608143/anatomical-functional-and-quality-of-life-results-for-mastoid-and-epitympanic-obliteration-with-bioactive-glass-s53p4-a-prospective-clinical-study
#16
D Bernardeschi, N Pyatigorskaya, F Y Russo, D De Seta, G Corallo, E Ferrary, Y Nguyen, O Sterkers
OBJECTIVE: To analyse the anatomical, functional and quality-of-life results when using bioactive glass in mastoid and epitympanic obliteration. DESIGN: Prospective clinical study. SETTING: Tertiary referral centre. PARTICIPANTS: Forty-one cases (39 patients) operated between May 2013 and January 2015. MAIN OUTCOME MEASURES: Anatomical results were evaluated by otomicroscopy 1 year after surgery and using imaging to detect residual disease...
September 8, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27594410/pulsatile-tinnitus-associated-with-dehiscent-internal-carotid-artery-an-irremediable-condition
#17
Jean-Philippe Van Damme, Géraldine Heylen, Chantal Gilain, Pierre Garin
Dehiscent internal carotid artery (ICA) in the middle ear is a rare condition, with conservative treatment primarily recommended. We report the case of a 63-year-old patient referred to the Ear, Nose, and Throat (ENT) ward for unbearable pulsatile tinnitus. Otoscopy revealed a normal right tympanic membrane, with pulsatile tinnitus but without hearing impairment. Based on imaging studies, including computed tomography (CT) and magnetic resonance imaging (MRI) of the temporal bone, as well as Doppler ultrasound of the internal carotid artery and sigmoid sinus, the diagnosis of ICA canal dehiscence into the tympanic cavity was established, thus excluding the diagnosis of aberrant ICA...
September 1, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27591576/finite-element-modelling-of-sound-transmission-from-outer-to-inner-ear
#18
Bruno Areias, Carla Santos, Renato M Natal Jorge, Fernanda Gentil, Marco Pl Parente
The ear is one of the most complex organs in the human body. Sound is a sequence of pressure waves, which propagates through a compressible media such as air. The pinna concentrates the sound waves into the external auditory meatus. In this canal, the sound is conducted to the tympanic membrane. The tympanic membrane transforms the pressure variations into mechanical displacements, which are then transmitted to the ossicles. The vibration of the stapes footplate creates pressure waves in the fluid inside the cochlea; these pressure waves stimulate the hair cells, generating electrical signals which are sent to the brain through the cochlear nerve, where they are decoded...
September 2, 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/27584905/safety-and-efficacy-of-chitosan-dextran-hydrogel-in-the-middle-ear-in-an-animal-model
#19
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/27577755/surgical-treatment-of-lateral-skull-base-lesions-and-reconstruction-of-the-skull-base-a-report-of-20-cases
#20
Jia Xu, Haijin Yi, Xin Li, Wenjing Chen, Jinkun Xu
OBJECTIVE: To investigate the surgical treatment and related experience of lateral skull base lesions. METHODS: In a retrospective, clinical data analysis of 20 patients with lateral skull base diseases, 11 cases with temporal bone space-occupying lesions and intracranial invasion were treated by translabyrinthine surgery, mastoid cavity drainage, or transmastoid surgery to remove the lesion; two cases of cholesteatoma with destruction of tympanic cavity and tympanic sinus canopy with intracranial invasion were treated by extended radical mastoidectomy; seven cases with lateral skull base bone destruction with cerebrospinal fluid otorrhea caused by trauma and deformity were treated by translabyrinth and transmastoid repair...
August 31, 2016: Acta Oto-laryngologica
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