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tympanic bone

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
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...
October 12, 2016: Otology & Neurotology
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
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
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
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
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
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
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
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
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
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
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
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
Matthew D Cox, Quinn A Dunlap, Aaron Trinidade, John L Dornhoffer
OBJECTIVES: To assess long-term outcomes after secondary mastoid obliteration. STUDY DESIGN: Case series with chart review. SETTING: Tertiary care center. PATIENTS: Adult patients (20-80 yr of age) undergoing secondary mastoid obliteration. OUTCOME MEASURES: Hearing results (improvement in pure-tone average air-bone gap [PTA-ABG] from baseline) at the time of postoperative audiometry and at least 5 years after surgery, anatomic outcomes (rate of successful tympanic membrane graft healing), and the incidences of observed complications...
October 2016: Otology & Neurotology
Yukitomo Ishi, Hiroyuki Kobayashi, Hiroaki Motegi, Shogo Endo, Shigeru Yamaguchi, Shunsuke Terasaka, Kiyohiro Houkin
BACKGROUND: Compared with surgical resection, endoscopic transsphenoidal surgery (TSS) for cholesterol granuloma (CG) in the petrous apex (PA) is associated with local recurrence due to obstruction of the drainage route. We present a detailed procedure of an endoscopic TSS using pedicle vascularized nasoseptal flap (PVNF). METHODS: A 40-year-old woman with a history of repeated surgery for left tympanitis was referred to our institution. Neurological examination revealed severe hearing loss in the left ear...
August 20, 2016: Neurologia i Neurochirurgia Polska
Eda Simsek, Ozalkan Ozkan, Cüneyt Kucur, Ayşe Carlıoglu
: The purpose of this study was to assess closure rates in tympanic membrane perforations of various dimensions using the tragal cartilage-perichondrium composite graft and its effect on hearing values and also to present our own experiences. MATERIALS AND METHODS: Sixty-one patients presenting to our clinic in 2014-2015 and diagnosed with tympanic membrane perforation were included in the study. Otomicroscopic and otoendoscopic examinations were performed preoperatively and at the 12th month postoperatively...
August 5, 2016: American Journal of Otolaryngology
Pilar Rovira Martí, Rosendo Ullot Font
PURPOSE: Pycnodysostosis is a rare autosomal recessive genetic disorder usually diagnosed at an early age. The few previously published case series have generally focused on maxillofacial manifestations and genetic considerations. The purpose of this study was to evaluate the clinical characteristics and differential diagnosis of pycnodysostosis focusing on its orthopaedic manifestations, which have been poorly described in the literature. METHODS: We evaluated clinical and radiographic characteristics of five patients with pycnodysostosis...
August 25, 2016: International Orthopaedics
Hamid R Djalilian, Hossein Mahboubi, Yarah M Haidar, Peyton Paulick, Mark W Merlo, Mark Bachman
OBJECTIVES/HYPOTHESIS: To develop a novel completely-in-the-canal device capable of directly driving the tympanic membrane (TM) and ossicular chain from the ear canal. STUDY DESIGN: Development and feasibility study. METHODS: A voice coil actuator design was developed to drive the TM. Bench testing of the device using laser Doppler vibrometry (LDV) and sound recording was performed. Temporal bone studies using LDV were performed using different designs of the contact tip-TM interface to find the most efficient method of sound transmission...
August 22, 2016: Laryngoscope
Chih-Chieh Tseng, Ming-Tang Lai, Chia-Che Wu, Sheng-Po Yuan, Yi-Fang Ding
Importance: Repairing anterior perforations of the tympanic membrane has been challenging for otolaryngologists. Therefore, devising a simple and effective technique for performing the repair is crucial. Objective: To assess the results of endoscopic transcanal myringoplasty for repairing anterior perforations of the tympanic membrane. Design, Setting, and Participants: This medical record review included 59 patients who underwent endoscopic transcanal myringoplasty from January 1, 2013, to June 1, 2015, at PoJen General Hospital, Taipei, Taiwan...
August 18, 2016: JAMA Otolaryngology—Head & Neck Surgery
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