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https://www.readbyqxmd.com/read/28219477/autologous-incus-versus-titanium-partial-ossicular-replacement-prosthesis-in-reconstruction-of-austin-type-a-ossicular-defects-a-prospective-randomised-clinical-trial
#1
Amith Naragund, R S Mudhol
OBJECTIVE: This study aimed to compare the functional and anatomical outcomes of ossiculoplasty using an autograft incus or a titanium partial ossicular replacement prosthesis for reconstructing Austin type A ossicular defects. METHODS: Patients with Austin A ossicular defects were randomly divided into two groups: one group underwent ossiculoplasty with an autologous incus (the autologous incus group) and the other underwent ossiculoplasty with a titanium partial ossicular replacement prosthesis (the titanium prosthesis group)...
February 21, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28192384/lucae-s-springy-pressure-probe-to-mobilize-the-ossicular-chain-rise-and-fall-of-an-ingenious-instrument
#2
Rinze Anthony Tange, Albert Mudry
OBJECTIVES/HYPOTHESES: In 1884, Johann Constantin August Lucae (1835-1911), a German otologist from Berlin, introduced a new "method to mechanically treat chronic troubles of the mobility of the hearing organ transmission apparatus." It consisted in the use of a springy pressure probe to directly mobilize the handle of the malleus. The aim of this study is to trace the invention, clinical use, technological modifications, and ultimate extinction of this instrument. METHOD: Review of Lucae's publications, comments by his colleagues, and trade catalogues published between 1880 and 1940...
March 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28171738/analysis-of-audiometric-outcomes-following-combined-middle-cranial-fossa-transmastoid-approaches-for-spontaneous-cerebrospinal-fluid-otorrhea
#3
Shawn M Stevens, Ryan Crane, Myles L Pensak, Ravi N Samy
Outcome Objectives To (1) explore audiometric outcomes following use of a combined transmastoid/middle cranial fossa (TM-MCF) approach in the treatment of spontaneous cerebrospinal fluid (CSF) otorrhea and (2) determine the influence of dehiscence location and reconstructive methodology on audiometric outcomes. Study Design Case series with chart review. Setting Tertiary care center. Subjects and Methods Adults with spontaneous CSF otorrhea were reviewed from 2007 to 2016 if they underwent combined TM-MCF. Definitive audiometric evaluations were performed at least 3 months postoperatively...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28125327/mastoid-obliteration-with-s53p4-bioactive-glass-in-cholesteatoma-surgery
#4
Pieter D de Veij Mestdagh, David R Colnot, Pepijn A Borggreven, Claudia C Orelio, Jasper J Quak
CONCLUSION: Evaluation of the follow-up of 67 patients shows that S53P4 bioactive glass (BAG) granules are safe and effective as obliteration material in cholesteatoma surgery. OBJECTIVES: To investigate the safety and efficacy of mastoid obliteration using S53P4 BAG in cholesteatoma surgery. Clinical outcomes were infection control (Merchant's grading), cholesteatoma recidivism, and audiometric performance. METHODS: Retrospective follow-up study at the Diakonessenhuis, Utrecht, the Netherlands...
January 26, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28079680/middle-ear-sound-transmission-under-normal-damaged-repaired-and-reconstructed-conditions
#5
Wei Dong, Ying Tian, Xin Gao, Timothy T K Jung
HYPOTHESIS: We hypothesize that current clinical treatment strategies for the disarticulated or eroded incus have the effect of combining the incus and stapes of the human middle ear (ME) into one rigid structure, which, while capable of adequately transmitting lower-frequency sounds, fails for higher frequencies. BACKGROUND: ME damage causes conductive hearing loss (CHL) and while great progress has been made in repairing or reconstructing damaged MEs, the outcomes are often far from ideal...
January 10, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28068651/comparison-of-alternative-coupling-methods-of-the-vibrant-soundbridge-floating-mass-transducer
#6
Susan Busch, Thomas Lenarz, Hannes Maier
The active middle ear implant Vibrant Soundbridge© provides a variety of coupling modalities of the floating mass transducer (FMT) to various structures of the ossicular chain and the round window. A retrospective analysis was performed on 125 subjects (n = 137 ears) (1) to compare the efficacy of the different FMT coupling modalities with increasing degree of hearing loss, (2) to compare the performance in speech outcome and the effective gain between the coupling types, and (3) to evaluate the risk of additional hearing loss of each coupling procedure...
January 10, 2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/28031153/surgical-management-and-hearing-outcome-of-traumatic-ossicular-injuries
#7
Stefan Delrue, Nicolas Verhaert, Joost van Dinther, Andrzej Zarowski, Thomas Somers, Christian Desloovere, Erwin Offeciers
OBJECTIVE: The purpose of this study was to investigate etiological, clinical, and pathological characteristics of traumatic injuries of the middle ear ossicular chain and to evaluate hearing outcome after surgery. MATERIAL AND METHODS: Thirty consecutive patients (31 ears) with traumatic ossicular injuries operated on between 2004 and 2015 in two tertiary referral otologic centers were retrospectively analyzed. Traumatic events, clinical features, ossicular lesions, treatment procedures, and audiometric results were evaluated...
December 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28012524/a-pearl-in-the-ear-intracranial-complications-of-pediatric-cholesteatomas
#8
Krystyne Basa, Jessica R Levi, Erin Field, Robert C O'Reilly
A nine-year-old male had a cholesteatoma of the mastoid and middle ear found incidentally after myringotomy tube placement. Associated asymptomatic sigmoid plate dehiscence with sinus invasion or thrombosis and ossicular chain destruction complicated his case. He had canal wall down tympanomastoidectomy and was followed for 4.5 years. Disease recurrence necessitated revision. Our case highlights an unusual clinical presentation, possible complications, and the aggressive quality of a benign lesion common in the pediatric population...
January 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27989383/dynamic-property-changes-in-stapedial-annular-ligament-associated-with-acute-otitis-media-in-the-chinchilla
#9
Brooke M Hitt, Xuelin Wang, Rong Z Gan
Located at the end of the ossicular chain, the stapedial annular ligament (SAL) serves as a closed yet mobile boundary between the cochlear fluid and stapes footplate. It is unclear how SAL properties change with acute otitis media (AOM). This paper reports the measurements of SAL dynamic properties in chinchilla AOM model using dynamic mechanical analyzer (DMA) and frequency-temperature superposition (FTS) principle. AOM was analyzed in two infection groups: 4 days (4D) and 8 days (8D) post induction. SAL specimens were measured using DMA at three temperatures: 5, 25, and 37°C...
February 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27981350/the-role-of-bone-resorption-in-the-etiopathogenesis-of-acquired-middle-ear-cholesteatoma
#10
REVIEW
Shumin Xie, Xiaoli Wang, Jihao Ren, Wei Liu
Cholesteatoma is a destructive squamous epithelial lesion of the temporal bone which gradually expands and leads to serious complications by destruction of nearby bony structures. Erosion caused by bone resorption of the ossicular chain and bony labyrinth may result in hearing loss, vestibular dysfunction, facial paralysis, labyrinthine fistulae and intracranial complications. The exact underlying cellular and molecular mechanism of bone resorption in acquired cholesteatoma still remains unexplained. Pubmed database and China National Knowledge Infrastructure were screened for articles focusing on bone resorption in acquired cholesteatoma...
December 16, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27926945/ear-structures-of-the-naked-mole-rat-heterocephalus-glaber-and-its-relatives-rodentia-bathyergidae
#11
Matthew J Mason, Hannah L Cornwall, Ewan St J Smith
Although increasingly popular as a laboratory species, very little is known about the peripheral auditory system of the naked mole-rat, Heterocephalus glaber. In this study, middle and inner ears of naked mole-rats of a range of ages were examined using micro-computed tomography and dissection. The ears of five other bathyergid species (Bathyergus suillus, Cryptomys hottentotus, Fukomys micklemi, Georychus capensis and Heliophobius argenteocinereus) were examined for comparative purposes. The middle ears of bathyergids show features commonly found in other members of the Ctenohystrica rodent clade, including a fused malleus and incus, a synovial stapedio-vestibular articulation and the loss of the stapedius muscle...
2016: PloS One
https://www.readbyqxmd.com/read/27897130/recommendations-for-potassium-titanyl-phosphate-laser-in-the-treatment-of-cholesteatoma
#12
REVIEW
Gavin John le Nobel, Adrian Lewis James
Potassium-titanyl-phosphage (KTP) lasers possess many characteristics suitable for otologic surgery. The objective of this report is to provide recommendations on the use of KTP laser for cholesteatoma surgery based on a narrative review of currently available evidence. PubMed and the Cochrane Review of randomized control trials were searched for relevant publications on efficacy and adverse effects and relevant articles appraised by the authors using Oxford Centre for Evidence-based Medicine criteria for recommendations...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27895001/surgical-management-and-hearing-outcome-of-traumatic-ossicular-injuries
#13
Stefan Delrue, Nicolas Verhaert, Joost van Dinther, Andrzej Zarowski, Thomas Somers, Christian Desloovere, Erwin Offeciers
OBJECTIVE: The purpose of this study was to investigate etiological, clinical, and pathological characteristics of traumatic injuries of the middle ear ossicular chain and to evaluate hearing outcome after surgery. MATERIAL AND METHODS: Thirty consecutive patients (31 ears) with traumatic ossicular injuries operated on between 2004 and 2015 in two tertiary referral otologic centers were retrospectively analyzed. Traumatic events, clinical features, ossicular lesions, treatment procedures, and audiometric results were evaluated...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27879419/tympanoplasty-outcomes-for-blast-induced-perforations-from-iraq-and-afghanistan
#14
Sungjin A Song, Shankar K Sridhara, Philip D Littlefield
Objective To describe characteristics of blast-induced tympanic membrane perforations that do not spontaneously heal, evaluate the outcomes of tympanoplasty techniques, and understand the factors associated with surgical success. Setting Two tertiary military health care institutions. Study Design Case series with chart review. Subjects and Methods This study reviewed the practice of 1 military neurotologist and included all tympanoplasties for combat blast-induced perforations from 2007 to 2012, which comprised a total of 55 patients...
February 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/27876740/-the-application-of-the-biologically-compatible-cyanacrylate-based-glue-for-ossiculoplasty-in-the-patients-presenting-with-chronic-otitis-media
#15
F V Semenov, N F Skibitskaya
The objective of the study was to improve the functional outcomes of the treatment in the patients presenting with chronic otitis media by means of the combined application of platelet-enriched plasma and the biologically compatible cyanacrylate-based glue for the fixation of the reconstructed auditory ossicular chain. The functional results of the surgery were evaluated within 1, 3, and12 months after the intervention making use of tonal threshold audiometry. It was shown that the use of the platelet-enriched plasma with its subsequent fixation by the biologically compatible cyanacrylate-based glue enhances stability of the implanted prosthetic elements, reduces the risk of their displacement during the postoperative period due to the formation of the cicatrical tissue between the structural components of the middle ear...
2016: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/27837423/the-effects-of-surgery-type-and-different-ossiculoplasty-materials-on-the-hearing-results-in-cholesteatoma-surgery
#16
Sultan Şevik Eliçora, Duygu Erdem, Aykut Erdem Dinç, Murat Damar, Sultan Bişkin
To investigate the effects of surgery type [intact canal wall (ICW) or canal wall down (CWD) mastoidectomy] and different ossiculoplasty materials on hearing outcome in single-staged cholesteatoma surgery. A retrospective case-control study. A total of 116 cases (97 adults, 29 children) underwent surgery, including ossiculoplasty, between 2012 and 2015 for cholesteatoma. Patients who had undergone surgery for the first time, and whose grafts were successful, were included in the study. Patients with adhesive otitis media, unsuccessful grafts, revision and recurrent cases, radical mastoidectomy, and craniofacial anomalies were excluded...
February 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27833874/effect-of-type-1-tympanoplasty-on-the-quality-of-life-of-csom-patients
#17
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/27833873/pre-operative-indicators-of-ossicular-necrosis-in-tubotympanic-csom
#18
Celina Lovely Jayakumar, Leeberk R Inbaraj, George J O Pinto
Ossicular necrosis and erosion is commonly seen in CSOM with cholesteatoma but can also occur in tubotympanic CSOM. This usually comes as a surprise during surgery. Preoperative knowledge of ossicular necrosis helps the surgeon to be better prepared for the surgery and ossicular construction if required. Hence, this study is intended to identify the pre-operative indicators of ossicular necrosis. This cross sectional study was conducted in Father Muller Medical College in Mangalore. Sixty nine consecutive patients with tubotympanic CSOM underwent a detailed clinical examination with pure tone audiometry and subsequently tympanoplasty with or without cortical mastoidectomy...
December 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27809939/electrocoagulation-improving-bone-cement-use-in-middle-ear-surgery-short-term-and-middle-term-results
#19
C Galy-Bernadoy, M Akkari, M Mondain, A Uziel, F Venail
BACKGROUND: Bone cement is used for ossicular chain repair and revision stapes surgery. Its efficient use requires cautious removal of mucosa from the ossicles. This paper reports a technique for easy, fast and safe removal of this mucosa prior to cement application. It consists of the application of monopolar electrocoagulation on the ossicles prior to bone cement application. METHODS: The outcomes of six cases of revision stapes surgery and seven cases of partial ossiculoplasty, conducted between 2007 and 2012 using this new technique, were evaluated...
December 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27794345/middle-ear-function-in-the-chinchilla-circuit-models-and-comparison-with-other-mammalian-species
#20
Charlsie Lemons, Julien Meaud
The middle ear efficiently transmits sound from the ear canal into the inner ear through a broad range of frequencies. Thus, understanding middle-ear transmission characteristics is essential in the study of hearing mechanics. Two models of the chinchilla middle ear are presented. In the first model, the middle ear is modeled as a lumped parameter system with elements that represent the ossicular chain and the middle-ear cavity. Parameters of this model are fit using available experimental data of two-port transmission matrix parameters...
October 2016: Journal of the Acoustical Society of America
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