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Ear, otology

Christian Güldner, Isabell Diogo, Eva Bernd, Stephanie Dräger, Magis Mandapathil, Afshin Teymoortash, Hesham Negm, Thomas Wilhelm
Cone beam computed tomography (CBCT, syn. digital volume tomography = DVT) was introduced into ENT imaging more than 10 years ago. The main focus was on imaging of the paranasal sinuses and traumatology of the mid face. In recent years, it has also been used in imaging of chronic ear diseases (especially in visualizing middle and inner ear implants), but an exact description of the advantages and limitations of visualizing precise anatomy in a relevant number of patients is still missing. The data sets of CBCT imaging of the middle and inner ear of 204 patients were analyzed regarding the visualization of 18 different anatomic structures...
October 17, 2016: European Archives of Oto-rhino-laryngology
Onyinye Ukaegbe, Basil Ezeanolue, Foster Orji
Introduction Tinnitus is a worldwide problem. Objective The objective of this study is to evaluate the audiometric hearing thresholds of adult patients with ongoing tinnitus as their only otological symptom. Methods We evaluated the hearing thresholds of 43 adult patients with ongoing tinnitus and no history of hearing loss from the otolaryngology department of a tertiary health institution at speech and high frequencies. A total of 56 tinnitus ears were compared against 30 contralateral normal ears as well as with the 100 ears of 50 healthy volunteers...
October 2016: International Archives of Otorhinolaryngology
Randall A Bly, Amit D Bhrany, Craig S Murakami, Kathleen C Y Sie
Microtia reconstruction is a challenging endeavor that has seen significant technique evolution. It is important to educate patients and their families to determine the best hearing rehabilitation and ear reconstructive options. Microtia is often associated with aural atresia, hearing loss, and craniofacial syndromes. Optimal care is provided by multiple disciplines, including a reconstructive surgeon, an otologic surgeon, an audiologist, and a craniofacial pediatrician. Microtia management includes observation, prosthetic ear, autologous cartilage reconstruction, or alloplastic implant placement...
November 2016: Facial Plastic Surgery Clinics of North America
Peymaneh Alizadeh Taheri, Shima Rostami, Manelie Sadeghi
Acute otitis externa (AOE) is an infection of the external auditory canal, the auricle, and the outer surface of the tympanic membrane. Although AOE is one of the most common otologic conditions encountered in pediatric population, it is known to primarily affect children older than 2 years. We report a case of AOE caused by Staphylococcus aureus in a 23-day-old neonate. A 23-day-old female infant presented to our neonatology clinic with irritability and discharge from the right ear. There were yellow otorrhea, mild erythema, and edema of right external ear canal...
2016: Case Reports in Infectious Diseases
Sheena Samra, Andrew Wu, Miriam Redleaf
INTRODUCTION: Otology relies on clinical examination to teach anatomy of the ear. The purpose of this report is to introduce the Buckingham Virtual Tympanum iPhone app as an adjuvant educational tool to teach the anatomical details of the tympanic membrane (TM). MATERIALS AND METHODS: This app, available free at the Apple Store, was constructed using archival photographs of normal and abnormal TMs, stratified by difficulty. Each image has 4 labeled structures, linked to questions to encourage active learning...
September 26, 2016: Annals of Otology, Rhinology, and Laryngology
P Bertholon, A Karkas
This chapter will focus on vertigo/dizziness due to inner-ear malformations, labyrinthine fistula, otosclerosis, infectious processes, and autoimmune inner-ear disorders. Inner-ear malformation due to dehiscence of the superior semicircular canal is the most recently described inner-ear malformation. Vertigo/dizziness is typically induced by sound and pressure stimuli and can be associated with auditory symptoms (conductive or mixed hearing loss). Labyrinthine fistula, except after surgery for otosclerosis, in the context of trauma or chronic otitis media with cholesteatoma, still remains a challenging disorder due to multiple uncertainties regarding diagnostic and management strategies...
2016: Handbook of Clinical Neurology
Kourosh Parham, Jonas Dyhrfjeld-Johnsen
HYPOTHESIS: At present there are no serum biomarkers available to monitor cochlear health in those at risk of hearing loss. Outer hair cells (OHCs) play an important role in cochlear function and are one of the cellular elements most vulnerable to damage, such as acoustic trauma. We hypothesized that an OHC-specific protein can serve as a biomarker for OHC damage in circulation. METHODS: After assessing auditory function, rats were exposed to intense octave band noise for 2 to 3 hours...
October 2016: Otology & Neurotology
Janani S Iyer, Shelley A Batts, Kengyeh K Chu, Mehmet I Sahin, Hui Min Leung, Guillermo J Tearney, Konstantina M Stankovic
The mammalian cochlea has historically resisted attempts at high-resolution, non-invasive imaging due to its small size, complex three-dimensional structure, and embedded location within the temporal bone. As a result, little is known about the relationship between an individual's cochlear pathology and hearing function, and otologists must rely on physiological testing and imaging methods that offer limited resolution to obtain information about the inner ear prior to performing surgery. Micro-optical coherence tomography (μOCT) is a non-invasive, low-coherence interferometric imaging technique capable of resolving cellular-level anatomic structures...
2016: Scientific Reports
Francis Pete X Creighton, Xiying Guan, Steve Park, Ioannis John Kymissis, Hideko Heidi Nakajima, Elizabeth S Olson
OBJECTIVE: To validate an intracochlear piezoelectric sensor for its ability to detect intracochlear pressure and function as a microphone for a fully implantable cochlear implant. METHODS: A polyvinylidene fluoride (PVDF) piezoelectric pressure sensor was inserted into a human fresh cadaveric round window at varying depths. An external sound pressure stimulus was applied to the external auditory canal (EAC). EAC pressure, stapes velocity, and piezoelectric sensor voltage output were recorded...
September 14, 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
Friederike Pohl, Gerrit Paasche, Thomas Lenarz, Robert Schuon
OBJECTIVE: To investigate and establish the use of tympanometry in conscious sheep to provide a means of objective assessment of tympanic membrane integrity, middle ear ventilation and functioning of the Eustachian tube (ET). DESIGN: After conditioning the sheep for four weeks, tympanometric measurements at 226 Hz were carried out weekly for 13 weeks. Before measurements, the external ear canal had been cleaned. Resultant curves were classified according to human reference values...
September 14, 2016: International Journal of Audiology
Forest W Weir, Kathryn L Kreicher, Jonathan L Hatch, Shaun A Nguyen, Ted A Meyer
OBJECTIVE: The focus of this study was to evaluate the prevalence, type, and severity of hearing impairment in patients with Duane's Retraction Syndrome and to relate these measures to patient demographics and other otologic and audiologic factors. STUDY DESIGN: Retrospective AudGen Database analysis SETTING: Tertiary academic referral center PATIENTS: Pediatric patients in AudGenDB with a diagnosis of Duane's Retraction Syndrome (DRS)...
October 2016: International Journal of Pediatric Otorhinolaryngology
Tetsuya Tono, Masafumi Sakagami, Hiromi Kojima, Yutaka Yamamoto, Keiji Matsuda, Manabu Komori, Naohito Hato, Yuka Morita, Sho Hashimoto
In order to provide a basis for meaningful exchange of information among those treating cholesteatoma, the Committee on Nomenclature of the Japan Otological Society (JOS) was appointed in 2004 to create a cholesteatoma staging system as simple as possible to use in clinical practice in Japan. Following the announcement of preliminary criteria for the staging of pars flaccida (attic) cholesteatoma in 2008, we proposed the 2010 JOS staging system for two major types of retraction pocket cholesteatoma, pars flaccida and pars tensa cholesteatoma...
September 8, 2016: Auris, Nasus, Larynx
Haytham Kubba, Arlene Smyth, Sze Choong Wong, Avril Mason
BACKGROUND: Turner's syndrome (TS) is a common chromosomal disorder, affecting 1 in 2000 newborn girls, in which part or all of one X chromosome is missing. Ear and hearing problems are very common in girls and women with TS. The aim of this review was to review the published literature in order to suggest recommendations for otological health surveillance. METHOD: A keyword search of Ovid Medline was performed for published literature on the subject and evidence rated according to the GRADE criteria...
September 10, 2016: Clinical Otolaryngology
Elizabeth Harrison, Matthew Cronin
BACKGROUND: Otalgia is frequently seen in general practice. It can be broadly divided into primary otalgia, which includes the diseases occurring largely within the ear, or secondary otalgia, which is pain referred to the ear by travelling along cranial nerves that supply both the ear and referred region. The causes of secondary otalgia may require more extensive examination and investigation to define the aetiology. OBJECTIVE: The aims of this article are to outline the most common causes of otalgia seen in general practice, and provide a pragmatic approach to initial assessment and deciding when to refer for specialist review...
July 2016: Australian Family Physician
Belmiro Cavalcanti do Egito Vasconcelos, Lívia Mirelle Barbosa, Jimmy Charles Melo Barbalho, Gabriela Madeira Araújo, Auremir Rocha Melo, Lucas Alexandre de Morais Santos
This prospective clinical study evaluated the correlation among temporomandibular disorder (TMD), otologic manifestations, and parafunctional habits in a sample of 100 patients with TMD. The subjects were evaluated by clinical examination, use of a simplified anamnestic questionnaire for TMD diagnosis, and the investigation of otologic manifestations and parafunctional habits of the stomatognathic system. The prevalence of TMD and correlations with otologic manifestations and parafunctional habits were calculated...
September 2016: General Dentistry
Noritaka Komune, Satoshi Matsuo, Koichi Miki, Albert L Rhoton
OBJECTIVE The application of the endoscope in the lateral skull base increases the importance of the middle ear cavity as the corridor to the skull base. The aim of this study was to define the middle ear as a route to the fundus (lateral end) of the internal acoustic canal and to propose feasible landmarks to the fundus. METHODS This was a cadaveric study; 34 adult cadaveric temporal bones and 2 dry bones were dissected with the aid of the endoscope and microscope to show the anatomy of the transcanal approach to the middle ear and fundus of the internal acoustic canal...
September 2, 2016: Journal of Neurosurgery
Hiroki Koizumi, Hideaki Suzuki, Rintaro Kawaguchi, Koichi Hashida, Nobusuke Hohchi, Jun-Ichi Ohkubo, Takahisa Tabata, Takuro Kitamura
CONCLUSIONS: Osteoclasts are unlikely to be involved in bone resorption in middle ear cholesteatoma. OBJECTIVE: The authors searched for osteoclasts in undecalcified bone sections in patients with middle ear cholesteatoma to determine whether and to what extent these cells are involved in this disease. METHODS: Twelve patients, eight men and four women, aged 30-87 years, who underwent tympanomastoidectomy were enrolled. Six patients had primary acquired middle ear cholesteatoma (cholesteatoma group) and the other six patients had other otologic diseases including otosclerosis, non-cholesteatomatous chronic otitis media, adhesive otitis media, perilymphatic fistula and ossicular malformation (control group)...
August 30, 2016: Acta Oto-laryngologica
Ruwan Kiringoda, Elliott D Kozin, Daniel J Lee
Endoscopic ear surgery (EES) provides several advantages compared with traditional binocular microscopy, including a wide-field view, improved resolution with high magnification, and visual access to hidden corridors of the middle ear. Although binocular microscopic-assisted surgical techniques remain the gold standard for most otologists, EES is slowly emerging as a viable alternative for performing otologic surgery at several centers in the United States and abroad. In this review, we evaluate the current body of literature regarding EES outcomes, summarize our EES outcomes at the Massachusetts Eye and Ear Infirmary, and compare these results with data for microscopic-assisted otologic surgery...
October 2016: Otolaryngologic Clinics of North America
Jesus Franco Anzola, João Flávio Nogueira
The endoscope has transformed the way we observe, understand, and treat chronic ear disease. Improved view, exclusive transcanal techniques, assessment of ventilation routes and mastoid tissue preservation have led to decreased morbidity and functional enhancement of minimally invasive reconstruction of the middle ear. The philosophical identity of endoscopic ear surgery is evolving; new research, long-term results, and widespread acknowledgement of its postulates will undoubtedly define its role in otology...
October 2016: Otolaryngologic Clinics of North America
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