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https://www.readbyqxmd.com/read/28636731/correlation-among-external-auditory-canal-anomaly-temporal-bone-malformation-and-hearing-levels-in-patients-with-microtia
#1
Kun Chen, Liu Liu, Runjie Shi, Peihua Wang, Dong Chen, Hua Xiao
We conducted a retrospective study to evaluate the relationship between external auditory canal (EAC) anomaly, temporal bone abnormality, and hearing levels using objective scoring systems in Chinese patients with microtia. The study population consisted of 106 ears of 94 Chinese patients (67 male and 27 female) aged 5 to 45 years (mean: 12.6) with microtia. The EAC abnormalities were classified into 4 types according to Schuknecht's criteria: type A, type B, type C, and type D. Developmental anomalies of the temporal bone were evaluated by Jahrsdoerfer computed tomography (CT) scoring system using high-resolution CT scans of the temporal bone...
June 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28623942/the-palisade-cartilage-tympanoplasty-technique-a-systematic-review-and-meta-analysis
#2
REVIEW
Caroline C Jeffery, Cameron Shillington, Colin Andrews, Allan Ho
BACKGROUND: Tympanoplasty is a common procedure performed by Otolaryngologists. Many types of autologous grafts have been used with variations of techniques with varying results. This is the first systematic review of the literature and meta-analysis with the aim to evaluate the effectiveness of one of the techniques which is gaining popularity, the palisade cartilage tympanoplasty. PubMed, EMBASE, and Cochrane databases were searched for "palisade", "cartilage", "tympanoplasty", "perforation" and their synonyms...
June 17, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28608748/tympanic-membrane-and-ossicular-sparing-modified-lateral-temporal-bone-resection
#3
Yaser Ghavami, Yarah M Haidar, Marlon Maducdoc, Tjoson Tjoa, Omid Moshtaghi, Harrison W Lin, Hamid R Djalilian
A modified lateral temporal bone resection (mLTBR) is a unique technique that spares the tympanic membrane (TM) and ossicles in select patients with squamous cell carcinoma (SCCa). The records of 5 patients with SCCa of the temporal bone with negative frozen-section biopsy at the tympanic annulus were reviewed. The mean follow-up time for the patients was 29.2 months. One patient received postoperative radiation due to cervical nodal extracapsular spread. All patients were recurrence free as of the most recent follow-up (range, 8-50 months)...
June 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28607880/role-of-autologous-versus-homologous-cartilage-in-ossicular-reconstruction-a-comparative-study
#4
Karan Sharma, Pratibha Gururani, Archana Arora, Gagandeep Singh
Ossicular discontinuity is the most common cause of conductive hearing loss. The use of ossicular graft material in ossicular chain reconstruction significantly improves the result in hearing. This study was conducted to compare and analyze the outcome of ossicular reconstruction using autologous conchal cartilage and homologous septal cartilage in terms of hearing results and graft uptake rates. Study design Randomized clinical trial. Study included 100 patients visiting the ENT department of government medical college...
June 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28601531/sheep-as-a-large-animal-ear-model-middle-ear-ossicular-velocities-and-intracochlear-sound-pressure
#5
Dominik Péus, Ivo Dobrev, Lukas Prochazka, Konrad Thoele, Adrian Dalbert, Andreas Boss, Nicolas Newcomb, Rudolf Probst, Christof Röösli, Jae Hoon Sim, Alexander Huber, Flurin Pfiffner
Animals are frequently used for the development and testing of new hearing devices. Dimensions of the middle ear and cochlea differ significantly between humans and commonly used animals, such as rodents or cats. The sheep cochlea is anatomically more like the human cochlea in size and number of turns. This study investigated the middle-ear ossicular velocities and intracochlear sound pressure (ICSP) in sheep temporal bones, with the aim of characterizing the sheep as an experimental model for implantable hearing devices...
June 7, 2017: Hearing Research
https://www.readbyqxmd.com/read/28598950/drill-induced-cochlear-injury-during-otologic-surgery-intracochlear-pressure-evidence-of-acoustic-trauma
#6
Renee M Banakis Hartl, Jameson K Mattingly, Nathaniel T Greene, Nyssa F Farrell, Samuel P Gubbels, Daniel J Tollin
HYPOTHESIS: Drilling on the incus produces intracochlear pressure changes comparable to pressures created by high-intensity acoustic stimuli. BACKGROUND: New-onset sensorineural hearing loss (SNHL) following mastoid surgery can occur secondary to inadvertent drilling on the ossicular chain. To investigate this, we test the hypothesis that high sound pressure levels are generated when a high-speed drill contacts the incus. METHODS: Human cadaveric heads underwent mastoidectomy, and fiber-optic sensors were placed in scala tympani and vestibuli to measure intracochlear pressures (PIC)...
June 8, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28551022/the-relationship-between-post-traumatic-ossicular-injuries-and-conductive-hearing-loss-a-3d-ct-study
#7
Olivier Maillot, Arnaud Attyé, Claire Boutet, Kamel Boubagra, Romain Perolat, Marion Zanolla, Sylvie Grand, Sébastien Schmerber, Alexandre Krainik
PURPOSE: After a trauma, the conductive ossicular chain may be disrupted by ossicular luxation or fracture. Recent developments in 3D-CT allow a better understanding of ossicular injuries. In this retrospective study, we compared patients with post-traumatic conductive hearing loss (CHL) with those referred without CHL to evaluate the relationship between ossicular injuries and CHL. We also assessed the added value of 3D reconstructions on 2D-CT scan to detect ossicular lesions in patients surgically managed...
May 24, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28514355/-the-prevalence-of-tympanosclerosis-and-the-effectiveness-of-its-surgical-treatment
#8
E V Garov, N G Sidorina, E E Zagorskaya, P A Sudarev, A S Meparishvili
The objective of the present study was to characterize the epidemiological variants of tympanosclerosis and the effectiveness of the surgical treatment of the patients presenting with this condition. We have undertaken the analysis of the results of 1965 surgical interventions on the patients suffering from different forms of chronic otitis media (COM) performed during the period from 2009 till 2014 with a view to determining the frequency of tympanosclerosis (TSC). In 542 cases, it proved possible to evaluate the intraoperative findings, stages and methods of reconstructive surgery, the anatomical and functional outcomes and effectiveness of the intervention...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28499303/-long-term-follow-up-and-patient-satisfaction-after-tympanoplasty-with-titanium-clip-prothesis
#9
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...
May 12, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28499295/-tympanoplasty-news-and-new-perspectives
#10
Marcus Neudert, Thomas Zahnert
Techniques and biomaterials for reconstructive middle ear surgery are under steady, ongoing development. At the same time, clinical post-surgery results are evaluated to determine success or failure of the therapy. Routine quality assessment and assurance is of growing importance in the medical field, and therefore also in middle ear surgery. The exact definition and acquisition of outcome parameters is essential for both a comprehensive and detailed quality assurance. These parameters are not the audiological results alone, but also additional individual parameters which influence the postoperative outcome after tympanoplasty...
April 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28498268/transcanal-endoscopic-ear-surgery-for-excision-of-a-facial-nerve-venous-malformation-with-interposition-nerve-grafting-a-case-report
#11
Cameron C Wick, Mark Sakai, Timothy E Richardson, Brandon Isaacson
OBJECTIVE: To illustrate a novel approach for the surgical management of a venous malformation of the facial nerve, including interposition nerve grafting, via an exclusively transcanal endoscopic ear surgery (TEES) approach. PATIENT: Thirty nine-year-old woman with a preoperative House-Brackmann (HB) grade IV facial paresis secondary to a facial nerve tumor. INTERVENTION(S): Surgical excision and interposition nerve graft via a transcanal endoscopic approach...
July 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28498081/finite-element-analysis-of-auditory-characteristics-in-patients-with-middle-ear-diseases
#12
Bo Tu, Xiaoping Li, Zhenhua Nie, Changzheng Shi, Hengguo Li
CONCLUSION: This study validates that a finite element model of the human ossicular chain and tympanic membrane can be used as an effective surgical assessment tool in clinics. OBJECTIVE: The present study was performed to investigate the application of a finite element model of ossicular chain and tympanic membrane for fabrication of individualized artificial ossicles. METHODS: Twenty patients (20 ears) who underwent surgery for middle ear disease (n = 20) and 10 healthy controls (10 ears) were enrolled in the hospital...
July 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28485292/assessment-and-management-of-retraction-pockets
#13
Cuneyt Alper, Ewa Olszewska
This manuscript intends to review types, pathogenesis, associated risk factors, and potential methods of prevention and treatment of the retraction pockets in adults and children. The importance of retraction pockets (RP) lies in loss of original histological and anatomical structure which is associated with development of ossicular chain erosion, cho¬lesteatoma formation and potentially life threatening complications of cholesteatoma. The trans-mucosal exchange each gas in the middle ear (ME) is towards equalizing its partial pressures with the partial pressure in the environ¬ment...
February 28, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28485284/functional-outcomes-of-tympanoplasty-surgery
#14
Izabela Matuszewska, Paweł Burduk, Wojciech Kaźmierczak, Joanna Janiak-Kiszka
OBJECTIVE: We reviewed functional outcomes of tympanoplasty. STUDY DESIGN: The results of tympanoplastic surgery are changing in time. We present late treatment outcomes among different types of tympanoplasty. METHODS: Eighty-six patients who underwent tympanoplasty were enrolled in the study. The results of pure tone audiometry performed 7 days before, then at 3 months, 1 year, and 3 years after the surgery were assessed. Type II tympanoplasty involved implantation of a partial ossicular replacement prosthesis and type III tympanoplasty involved reconstruction with a total ossicular replacement prosthesis and the use of autogenous homogenous material...
November 20, 2016: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28483223/temporal-bone-extramedullary-hematopoiesis-as-a-causeof-pediatric-bilateral-conductive-hearing-loss-case-report-and-review-of-the-literature
#15
Alexander Lanigan, M Taylor Fordham
Extramedullary hematopoiesis occurs in children with hemoglobinopathy and chronic anemia. The liver and spleen are often affected first, but other foci can develop to support erythrocyte demand. We report a case of a nine-year-old with beta thalassemia and temporal bone extramedullary hematopoiesis causing ossicular fixation and bilateral conductive hearing loss. There is only one case in the literature describing this phenomenon in pediatric patients, and this is the first case report of bilateral hearing loss from this physiologic phenomenon...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28465813/sensorineural-hearing-loss-in-patients-with-chronic-suppurative-otitis-media-is-there-a-significant-correlation
#16
Amin Amali, Nima Hosseinzadeh, Shahram Samadi, Shirin Nasiri, Jayran Zebardast
INTRODUCTION: Hearing loss as a sequel of chronic suppurative otitis media (CSOM) is often conductive, but recent studies have found an additional sensorineural component in these patients, thus demonstrating inner ear damage. The aim of the study was to determine the association between CSOM and sensorineural hearing loss (SNHL) and to assess the influence of patient's age, duration of disease, and presence of cholesteatoma and ossicular erosion on the degree of SNHL. METHODS: In a retrospective study, the medical records of 119 patients who underwent surgery was reviewed...
February 2017: Electronic Physician
https://www.readbyqxmd.com/read/28465109/learning-curve-for-endoscopic-tympanoplasty-initial-experience-of-221-procedures
#17
Chih-Chieh Tseng, Ming-Tang Lai, Chia-Che Wu, Sheng-Po Yuan, Yi-Fang Ding
BACKGROUND: The learning curve for endoscopic tympanoplasty has never been quantitatively reported. The present study depicted the learning curve for endoscopic tympanoplasty and evaluated how many procedures an otologist requires to attain proficiency in this technique. METHODS: We reviewed the medical charts of consecutive patients who underwent endoscopic tympanoplasty between January 1, 2013 and June 1, 2015. We enrolled patients with simple perforations of the tympanic membrane and excluded those with ossicular chain disease...
April 29, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28463590/systematic-review-of-ossicular-chain-anatomy-strategic-planning-for-development-of-novel-middle-ear-prostheses
#18
Brandon Kamrava, Pamela C Roehm
Objective To systematically review the anatomy of the ossicular chain. Data Sources Google Scholar, PubMed, and otologic textbooks. Review Methods A systematic literature search was performed on January 26, 2015. Search terms used to discover articles consisted of combinations of 2 keywords. One keyword from both groups was used: [ ossicular, ossicle, malleus, incus, stapes] and [ morphology, morphometric, anatomy, variation, physiology], yielding more than 50,000 hits. Articles were then screened by title and abstract if they did not contain information relevant to human ossicular chain anatomy...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28462609/the-effects-of-double-gloving-on-microsurgical-skills
#19
Scott A Hardison, Grace Pyon, Audrey Le, Wen Wan, Daniel H Coelho
Objective To determine whether double gloving would negatively affect participants' ability to perform a simulated microsurgical task. Study Design Randomized single-blinded controlled crossover trial. Setting Temporal bone laboratory of an academic otolaryngology department. Subjects and Methods This study involved the simulated insertion of a stapes prosthesis into a model of the ossicular chain under microscopy. Forty-one participants were recruited from our medical and dental school and randomized into 2 groups...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28441229/preliminary-model-for-the-design-of-a-custom-middle-ear-prosthesis
#20
Brandon Kamrava, Jonathan A Gerstenhaber, Mamta Amin, Yah-El Har-El, Pamela C Roehm
HYPOTHESIS: Custom prostheses could be used to recreate the ossicular chain and improve hearing. BACKGROUND: Ossicular discontinuity or fixation occurs in 55% of cases of conductive hearing loss, with most cases involving the incus. Reconstruction has been achieved by a variety of methods; however, there has been little improvement in hearing outcomes in decades. METHODS: Precise measurements of anatomic dimensions, weight, and center of gravity were taken from 19 cadaveric incudes...
July 2017: Otology & Neurotology
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