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https://www.readbyqxmd.com/read/28420248/creating-an-optimal-3d-printed-model-for-temporal-bone-dissection-training
#1
Kuniyuki Takahashi, Yuka Morita, Shinsuke Ohshima, Shuji Izumi, Yamato Kubota, Yutaka Yamamoto, Sugata Takahashi, Arata Horii
OBJECTIVE: Making a 3-dimensional (3D) temporal bone model is simple using a plaster powder bed and an inkjet printer. However, it is difficult to reproduce air-containing spaces and precise middle ear structures. The objective of this study was to overcome these problems and create a temporal bone model that would be useful both as a training tool and for preoperative simulation. METHODS: Drainage holes were made to remove excess materials from air-containing spaces, ossicle ligaments were manually changed to bony structures, and small and/or soft tissue structures were colored differently while designing the 3D models...
April 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28397138/middle-fossa-approach-for-resection-of-vestibular-schwannoma
#2
Gmaan Alzhrani, Clough Shelton, William T Couldwell
BACKGROUND: Surgical approaches for removal of vestibular schwannoma are done through retrosigmoid, translabyrinthine, or middle fossa approaches, depending on the tumor size, preoperative hearing status, surgical team experience, and patient preference. The middle fossa approach (MFA) for the vestibular schwannoma (VS) route preserves hearing and can be done with minimal morbidity and mortality. METHOD: The authors discuss the surgical anatomy of the middle fossa, internal auditory canal localization techniques, MFA indications and the procedure for VS removal, and outcome...
April 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28388970/contemporary-imaging-of-auditory-implants
#3
REVIEW
S E J Connor
There have been significant advances in the diversity and effectiveness of hearing technologies in recent years. Implanted auditory devices may be divided into those that stimulate the cochlear hair cells (bone conduction devices and middle ear implants), and those that stimulate the neural structures (cochlear implants and central auditory implants). Contemporary preoperative and postoperative imaging may be used to help individualise implant selection, optimise surgical technique and predict auditory outcome...
April 4, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28382131/superior-semicircular-canal-dehiscence-syndrome-diagnosis-and-surgical-management
#4
Marite Palma Diaz, Juan Carlos Cisneros Lesser, Alfredo Vega Alarcón
Introduction Superior semicircular canal dehiscence syndrome was described by Minor et al in 1998. It is a troublesome syndrome that results in vertigo and oscillopsia induced by loud sounds or changes in the pressure of the external auditory canal or middle ear. Patients may present with autophony, hyperacusis, pulsatile tinnitus and hearing loss. When symptoms are mild, they are usually managed conservatively, but surgical intervention may be needed for patients with debilitating symptoms. Objective The aim of this manuscript is to review the different surgical techniques used to repair the superior semicircular canal dehiscence...
April 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28372534/panel-7-otitis-media-treatment-and-complications
#5
Anne G M Schilder, Tal Marom, Mahmood F Bhutta, Margaretha L Casselbrant, Harvey Coates, Marie Gisselsson-Solén, Amanda J Hall, Paola Marchisio, Aino Ruohola, Roderick P Venekamp, Ellen M Mandel
Objective We aimed to summarize key articles published between 2011 and 2015 on the treatment of (recurrent) acute otitis media, otitis media with effusion, tympanostomy tube otorrhea, chronic suppurative otitis media and complications of otitis media, and their implications for clinical practice. Data Sources PubMed, Ovid Medline, the Cochrane Library, and Clinical Evidence (BMJ Publishing). Review Methods All types of articles related to otitis media treatment and complications between June 2011 and March 2015 were identified...
April 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28372527/panel-2-anatomy-eustachian-tube-middle-ear-and-mastoid-anatomy-physiology-pathophysiology-and-pathogenesis
#6
Cuneyt M Alper, Michal Luntz, Haruo Takahashi, Samir N Ghadiali, J Douglas Swarts, Miriam S Teixeira, Zsuzsanna Csákányi, Noam Yehudai, Romain Kania, Dennis S Poe
Objective In this report, we review the recent literature (ie, past 4 years) to identify advances in our understanding of the middle ear-mastoid-eustachian tube system. We use this review to determine whether the short-term goals elaborated in the last report were achieved, and we propose updated goals to guide future otitis media research. Data Sources PubMed, Web of Science, Medline. Review Methods The panel topic was subdivided, and each contributor performed a literature search within the given time frame...
April 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28346648/glomus-faciale-tumors-a-report-of-3-cases-and-literature-review
#7
Sahar Nadimi, John P Leonetti, Sam J Marzo, Douglas E Anderson, Gulrez Mahmood, Derek Bumgarner
Our objectives in reporting this case series are to familiarize readers with the rare occurrence of paragangliomas originating along the facial nerve and to provide a literature review. We describe 3 such cases that occurred at our tertiary care academic medical center. Two women and 1 man presented with a tumor adjacent to the vertical segment of the facial nerve. The first patient, a 48-year-old woman, presented with what appeared to be a parotid tumor at the stylomastoid foramen; she underwent a parotidectomy, transmastoid facial nerve decompression, and a shave biopsy of the tumor...
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346291/round-and-oval-window-anatomic-variability-its-implication-for-the-vibroplasty-technique
#8
Marta Mancheño, Miguel Aristegui, Jose Ramon Sañudo
OBJECTIVE: The objective of this study is to evaluate the anatomical variability of round and oval window regions and its relationship with their closest structures, to determine its implication on the fitting and stabilization of the middle ear implant Vibrant Soundbridge. METHODS: Variations of the anatomy of round and oval window regions were assessed in a total of 85 human dissected temporal bones. Afterward, we evaluated the adaptation and subsequent stabilization of the floating mass transducer (FMT) of the Vibrant Soundbridge in 67 cases in round window (RW) and in 22 cases in oval window (OW), and the influence that the variability of the different anatomical features examined had on this stabilization...
March 24, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28333779/impact-of-chronic-suppurative-otitis-media-in-pediatric-cochlear-implant-recipients-insight-into-the-challenges-from-a-tertiary-referral-center-in-uk
#9
Paramita Baruah, Kate Hanvey, Richard Irving, Konstance Tzifa
OBJECTIVE: Analyze the presentation and evolution of chronic suppurative otitis media (CSOM) in children with cochlear implants (CI) and explore the merit of early intervention. STUDY DESIGN: Retrospective patient review. SETTING: Tertiary referral hospital and cochlear implant programme. PATIENTS: Children with a CI who developed CSOM. INTERVENTION: Tympanoplasty. MAIN OUTCOME MEASURES: Disease control, recurrence of cholesteatoma, cochlear implant preservation...
March 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28314662/synovial-chondromatosis-of-the-temporomandibular-joint-with-extension-into-the-middle-cranial-fossa-and-internal-carotid-canal
#10
C McCaffery, M Dodd, F Bekiroglu, E Twohig
This report presents the case of an extensive synovial chondromatosis of the temporomandibular joint (TMJ), with extension into the middle cranial fossa, middle ear, and carotid canal. Synovial chondromatosis of the TMJ is rare, particularly when associated with intracranial involvement. This case is unique owing to its size and the involvement with the internal carotid artery. The importance of a multidisciplinary approach in the surgical management of such a rare and complex form of this condition is highlighted...
March 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28303411/identifying-the-origin-of-effects-of-contralateral-noise-on-transient-evoked-otoacoustic-emissions-in-unanesthetized-mice
#11
Yingyue Xu, Mary Ann Cheatham, Jonathan H Siegel
Descending neural pathways in the mammalian auditory system are known to modulate the function of the peripheral auditory system. These pathways include the medial olivocochlear (MOC) efferent innervation to outer hair cells (OHCs) and the acoustic reflex pathways mediating middle ear muscle (MEM) contractions. Based on measurements in humans (Marks and Siegel, companion paper), we applied a sensitive method to attempt to differentiate MEM and MOC reflexes using contralateral acoustic stimulation in mice under different levels of anesthesia...
March 16, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28290230/cilia-and-ear
#12
Gioia Piatti, Maria Margherita De Santi, Sara Torretta, Lorenzo Pignataro, Daniela Soi, Umberto Ambrosetti
OBJECTIVE: To investigate the prevalence of otological complications derived from primary ciliary dyskinesia (PCD) in adulthood. METHODS: Twenty-three patients with diagnosed PCD underwent medical history aimed at recording the presence of ear, nose, and throat manifestations (ENT) and any surgical treatments. The ENT objectivity was annotated, and then patients were subjected to audiometric test, tympanometry, registration of otoacoustic emission, and vestibular evaluation...
April 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28274504/practicality-analysis-of-the-staging-system-proposed-by-the-japan-otological-society-for-acquired-middle-ear-cholesteatoma-a-multicenter-study-of-446-surgical-cases-in-japan
#13
Keiji Matsuda, Tetsuya Tono, Hiromi Kojima, Yutaka Yamamoto, Masafumi Sakagami, Yasuo Mishiro, Yasuyuki Hinohira, Taeko Okuno
OBJECTIVE: The Objective of this study was to assess the practicality of the cholesteatoma staging system proposed by the Japan Otological Society (JOS) for acquired middle ear cholesteatoma (the 2010 JOS staging system). METHODS: Between 2009 and 2010, 446 ears with retraction pocket cholesteatoma underwent primary surgery at 6 institutions in Japan. The extent of cholesteatoma was surgically confirmed, and classified into three stages. RESULTS: The cholesteatoma affected the pars flaccida in 325 ears (73%), the pars tensa in 100 ears (22%), and both regions combined in 21 ears (5%)...
March 5, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28273957/morphological-variations-of-middle-ear-ossicles-and-its-clinical-implications
#14
Ritaban Saha, Phalguni Srimani, Ardhendu Mazumdar, Sibani Mazumdar
INTRODUCTION: The middle ear ossicles form a semi rigid chain in the middle of the ear for conduction and amplification of sound waves from the tympanic membrane to the inner ear. Although, our knowledge of the ear ossicles dates back to the 15(th) century, and various studies have been carried out on their morphometry, morphology, anomalies, embryology, function and structure throughout the world, information about the morphology of middle ear ossicles is meagre in Indian subjects. AIM: To find out the morphological variations of middle ear ossicles of right and left sides...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28253398/otogenic-temporomandibular-arthritis-in-children
#15
Alice Burgess, Charlotte Celerier, Sylvain Breton, Thierry Van den Abbeele, Natacha Kadlub, Nicolas Leboulanger, Noël Garabedian, Vincent Couloigner
Importance: Septic arthritis of the temporomandibular joint (SATMJ) is a very rare but potentially severe complication of pediatric middle ear infections because it presents risks of TMJ ankylosis. Objective: To describe the clinical, radiological, biological, and microbiological characteristics and evolution of SATMJ complicating middle ear infections (otogenic SATMJ) in children. Design, Setting, and Participants: This multicenter retrospective study included all children younger than 18 years referred between January 1, 2005, and December 31, 2015, for otogenic SATMJ or for TMJ ankylosis that occurred a few months to a few years after an acute mastoiditis...
March 2, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28243781/the-variants-of-the-retro-and-hypotympanum-an-endoscopic-anatomical-study
#16
Marco Bonali, Lukas Anschuetz, Matteo Fermi, Domenico Villari, Giulia Adalgisa Mariani, Lucia Manzoli, Marco Caversaccio, Livio Presutti
The retro- and hypotympanum are hidden areas of the middle ear, only poorly recognized. Nevertheless, this region is of relevant clinical significance, since it is regularly affected by disease such as cholesteatoma. The aim of this study is to explore and describe the anatomical variants of the hypo- and retrotympanum by the means of transcanal endoscopy. We hypothesize a significant variability of this hidden region of the middle ear. Moreover, we believe that the minimal invasive, endoscopic access is suitable since angled scopes may be used to explore the region...
February 27, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28239591/role-of-ct-mastoids-in-the-diagnosis-and-surgical-management-of-chronic-inflammatory-ear-diseases
#17
Juveria Majeed, L Sudarshan Reddy
Chronic Suppurative Otitis Media (CSOM) is a chronic inflammation of middle ear cleft. It presents with discharging ear and decreased hearing. The diagnosis is mostly on clinical examination with otoscope or oto endoscope. Computerised Tomography (CT) of mastoids is done to evaluate the extent of the disease and its complication. High resolution CT is now the investigation of choice for temporal bone disease. This study emphasizes on the importance of CT scan in diagnosis of inflammatory ear diseases and most importantly identifying pitfalls or complications which a surgeon can come across during surgery...
March 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28225318/endoscopic-tympanoplasty-in-the-treatment-of-chronic-otitis-media-our-experience
#18
Giuseppe Panetti, Matteo Cavaliere, Maria Panetti, Anna Marino, Maurizio Iemma
CONCLUSION: The endoscopy ensures good surgical exposure of hidden areas, frequently sites of residual cholesteatoma. Also, the minimally invasive endoscopic approach is more respectful of anatomy and functionality of the middle ear, restoring and preserving mastoid mucosa, with faster healing time. OBJECTIVES: To investigate the benefits that the systematic use of endoscopy in middle ear surgery has made. STUDY DESIGN: Retrospective cohort studies...
March 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28219399/noninvasive-detection-of-alarming-intracranial-pressure-changes-by-auditory-monitoring-in-early-management-of-brain-injury-a-prospective-invasive-versus-noninvasive-study
#19
Fabrice Giraudet, François Longeras, Aurélien Mulliez, Aurélie Thalamy, Bruno Pereira, Paul Avan, Laurent Sakka
BACKGROUND: In brain-injured patients intracranial pressure (ICP) is monitored invasively by a ventricular or intraparenchymal transducer. The procedure requires specific expertise and exposes the patient to complications such as malposition, hemorrhage or infection. As inner-ear fluid compartments are connected to the cerebrospinal fluid space, ICP changes elicit subtle changes in the physiology of the inner ear. Notably, we previously demonstrated that the phase of cochlear microphonic potential (CM) generated by sound stimuli rotates with ICP...
February 21, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28212124/extracranial-meningioma-presenting-as-an-eyebrow-mass
#20
Do Hun Lee, Ho Seup Sim, Jae Ha Hwang, Kwang Seog Kim, Sam Yong Lee
Meningiomas originate in the central nervous system and are the most common intracranial benign tumor. However, although rarely, they can develop extracranially. Primary extracranial meningiomas are frequently misdiagnosed, resulting in inappropriate clinical management. The most common sites of extracranial meningiomas include the skull, scalp, orbit, nose, paranasal sinuses, middle ear, neck, and skin. A 77-year-old woman presented with a mass on her left eyebrow. Computed tomography revealed an enhancing soft tissue mass in the left frontal area...
February 16, 2017: Journal of Craniofacial Surgery
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