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https://www.readbyqxmd.com/read/28920722/-comparative-evaluation-of-vertigo-in-patients-after-stapedotomy-and-stapedectomy
#1
Kinga Harmat, Gergely Thurén, László Simon, Nelli Nepp, Adrienn Németh, Imre Gerlinger, Péter Bakó
INTRODUCTION AND AIM: The reason of gradually developing conductive hearing loss in otosclerotic patients is the ossification of the stapes footplate to the surrounding bony structures and the therapy of stapes fixation is mainly surgical. In stapedotomy the footplate of the stapes is fenestrated with laser and microdrill in a diameter of 0.8 mm, whereas in stapedectomy there is complete removal of the footplate followed by the reconstruction of the ossicular chain. In the early postoperative period, temporary vertigo is frequently recorded which significantly influences the recovery...
September 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28895462/is-hospitalization-necessary-after-ear-surgery-a-national-survey-and-retrospective-review-of-postoperative-events
#2
Tanja Jelicic, Julian Richard Savage, Margaret Aron
Objective First, to survey our national otolaryngology colleagues on their postoperative care habits (hospitalization vs day surgery) after elective middle ear surgery. Second, to evaluate the necessity of hospitalization and safety of day surgery after these procedures. Methods A national survey regarding postoperative habits after elective middle ear surgery was launched. Then, the cases of all patients having undergone these surgical procedures at our center between 2010 and 2016 were reviewed. They were divided into 2 groups: hospitalization and day surgery...
September 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28874211/audiological-outcome-of-stapes-surgery-for-far-advanced-cochlear-otosclerosis
#3
C Heining, R Banga, R Irving, C Coulson, P Monksfield
BACKGROUND: Patients with advanced otosclerosis can present with hearing thresholds eligible for cochlear implantation. This study sought to address whether stapes surgery in this patient group provides a clinically significant audiological benefit. OBJECTIVES: To assess pre- and post-operative hearing outcomes of patients with advanced otosclerosis, and to determine what proportion of these patients required further surgery including cochlear implantation. METHODS: Between 2002 and 2015, 252 patients underwent primary stapes surgery at our institution...
September 6, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28872782/erosion-of-the-long-process-of-the-incus-with-incomplete-ossicular-discontinuity-in-simple-chronic-otitis-media-should-we-reconstruct-or-leave-it-be
#4
Krishnamurti Matos Araujo Sarmento Junior, Carlos Augusto Costa Pires de Oliveira, André Luiz Lopes Sampaio, Angelo Ferreira Sales
OBJECTIVE: To determine whether patients with simple chronic otitis media and incomplete ossicular discontinuity should undergo ossicular reconstruction. DESIGN: Prospective, randomized surgical trial comparing no intervention with incus interposition over a 5-year period. SETTING: Tertiary referral hospital. PARTICIPANTS: Seventy-six participants with simple chronic otitis media and erosion of the long process of the incus but apparent good transmission throughout the ossicular chain as tested intraoperatively...
September 5, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28863551/rippling-pattern-of-distortion-product-otoacoustic-emissions-evoked-by-high-frequency-primaries-in-guinea-pigs
#5
George W S Burwood, Ian J Russell, Andrei N Lukashkin
The origin of ripples in distortion product otoacoustic emission (DPOAE) amplitude which appear at specific DPOAE frequencies during f1 tone sweeps using fixed high frequency f2 (>20 kHz) in guinea pigs is investigated. The peaks of the ripples, or local DPOAE amplitude maxima, are separated by approximately half octave intervals and are accompanied by phase oscillations. The local maxima appear at the same frequencies in DPOAEs of different order and velocity responses of the stapes and do not shift with increasing levels of the primaries...
August 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28852952/atlas-based-segmentation-of-temporal-bone-anatomy
#6
Kimerly A Powell, Tong Liang, Brad Hittle, Don Stredney, Thomas Kerwin, Gregory J Wiet
PURPOSE: To develop a time-efficient automated segmentation approach that could identify critical structures in the temporal bone for visual enhancement and use in surgical simulation software. METHODS: An atlas-based segmentation approach was developed to segment the cochlea, ossicles, semicircular canals (SCCs), and facial nerve in normal temporal bone CT images. This approach was tested in images of 26 cadaver bones (13 left, 13 right). The results of the automated segmentation were compared to manual segmentation visually and using DICE metric, average Hausdorff distance, and volume similarity...
August 29, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28846785/cerebrospinal-fluid-leak-during-stapes-surgery-gushing-leaks-and-oozing-leaks-two-different-phenomena
#7
Juan Luis Quesada, Giovanni Cammaroto, Lilla Bonanno, Francesco Galletti, Pedro Quesada
Cerebrospinal fluid (CSF) leak is an uncommon event that can occur during stapes surgery. Such leaks can be classified as gushing leaks (stapes gushers) and oozing leaks. A stapes gusher is a massive flow of CSF through the perforated footplate that fills the middle ear suddenly, while an oozing leak is a slower and less profuse flow. We conducted a retrospective, observational, multicenter study of 38 patients-23 men and 15 women, aged 23 to 71 years (mean: 47)-who had experienced a CSF leak during stapes surgery...
August 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28821945/the-effect-of-thyroid-autoantibody-positivity-on-the-functions-of-internal-ear
#8
Akif Gunes, Mehmet Fatih Karakus, Tugba Akin Telli, Nurcan Akbas Gunes, Murad Mutlu
The objective of the study is to investigate if any significant difference exists in hearing thresholds and tympanometric examination results among patients whose thyroid antibody positivity was detected approximately 1 year or at least 5 years ago. Study population aged less than 40 years consisted of 17 patients who had thyroid antibody positivities for an average of 1 year (first group), 15 patients who were followed up for at least 5 years for thyroid antibody positivity (second group), and 18 volunteers (third group)...
August 18, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28816688/cartilage-ossiculoplasty-from-stapes-to-tympanic-membrane-in-one-stage-intact-canal-wall-tympanoplasty-for-cholesteatoma
#9
Denis Ayache, Florent Manac'h, Christian B Teszler, Mathieu Veyrat, Wissame El Bakkouri, Alain Corré, Mary Daval
OBJECTIVE: To report hearing results of cartilage interposition ossiculoplasty in one-stage intact canal wall (ICW) tympanoplasty for cholesteatoma with intact stapes. MATERIALS AND METHODS: A retrospective study of pre and postoperative hearing status was conducted at a tertiary referral otologic center in a series of 61 patients having undergone one-stage ICW tympanoplasty for cholesteatoma with intact stapes and cartilage ossiculoplasty during the same procedure...
August 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28758555/sequential-motion-of-the-ossicular-chain-measured-by-laser-doppler-vibrometry
#10
Yasuomi Kunimoto, Kensaku Hasegawa, Shiro Arii, Hideyuki Kataoka, Hiroaki Yazama, Junko Kuya, Kazunori Fujiwara, Hiromi Takeuchi
OBJECTIVE: In order to help a surgeon make the best decision, a more objective method of measuring ossicular motion is required. METHODS: A laser Doppler vibrometer was mounted on a surgical microscope. To measure ossicular chain vibrations, eight patients with cochlear implants were investigated. To assess the motions of the ossicular chain, velocities at five points were measured with tonal stimuli of 1 and 3 kHz, which yielded reproducible results. The sequential amplitude change at each point was calculated with phase shifting from the tonal stimulus...
July 31, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28751512/flat-panel-angiography-in-the-cross-sectional-imaging-of-the-temporal-bone-assessment-of-image-quality-and-radiation-dose-compared-with-a-64-section-multisection-ct-scanner
#11
G Conte, E Scola, S Calloni, R Brambilla, M Campoleoni, L Lombardi, F Di Berardino, D Zanetti, L M Gaini, F Triulzi, C Sina
BACKGROUND AND PURPOSE: Cross-sectional imaging of the temporal bone is challenging because of the complexity and small dimensions of the anatomic structures. We evaluated the role of flat panel angiography in the cross-sectional imaging of the temporal bone by comparing its image quality and radiation dose with a 64-section multisection CT scanner. MATERIALS AND METHODS: We retrospectively collected 29 multisection CT and 29 flat panel angiography images of normal whole-head temporal bones...
July 27, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28717959/-development-and-validation-of-the-stapesplasty-outcome-test%C3%A2-25-spot-25
#12
S Lailach, T Schenke, I Baumann, H Walter, M Praetorius, T Beleites, T Zahnert, M Neudert
BACKGROUND: Otosclerosis affects health-related quality of life (HRQOL). Until now, measurements have only been performed using audiometric data or non-validated quality of life questionnaires. OBJECTIVE: The objective of this study was to develop the first validated disease-specific HRQOL measuring instrument to determine HRQOL in otosclerosis. MATERIALS AND METHODS: After sequential analysis and item reduction of the initial Stapesplasty Outcome Test 47 (SPOT-47), the SPOT-25 was validated prospectively on 52 otosclerosis patients undergoing stapes surgery...
July 17, 2017: HNO
https://www.readbyqxmd.com/read/28704897/comparison-of-free-beam-and-fiber-type-co2-laser-delivery-systems-in-stapes-surgery
#13
Mun Young Chang, Hyun Seok Choi, Sang-Youp Lee, Ja-Won Koo
BACKGROUND AND OBJECTIVES: A free-beam-type CO2 laser, which use a micromanipulator mounted on a microscope as the delivery system, has the merit of not being affected by hand tremor at the time of shooting. However, this delivery system has several disadvantages, including a restricted operation range and a risk of incorrect focusing. A fiber-type CO2 laser uses a hand-held delivery system and has the opposite merits and demerits. We compared the results of stapes surgery with free-beam and fiber type delivery systems...
July 2017: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/28684743/inner-ear-ossification-and-mineralization-kinetics-in-human-embryonic-development-microtomographic-and-histomorphological-study
#14
Céline Richard, Guillaume Courbon, Norbert Laroche, Jean Michel Prades, Laurence Vico, Luc Malaval
Little is known about middle and inner ear development during the second and third parts of human fetal life. Using ultra-high resolution Microcomputed Tomography coupled with bone histology, we performed the first quantitative middle and inner ear ossification/mineralization evaluation of fetuses between 17 and 39 weeks of gestational age. We show distinct ossification paces between ossicles, with a belated development of the stapes. A complete cochlear bony covering is observed within the time-frame of the onset of hearing, whereas distinct time courses of ossification for semicircular canal envelopes are observed in relation to the start of vestibular functions...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28680491/relation-between-ossicular-erosion-and-destruction-of-facial-and-lateral-semicircular-canals-in-chronic-otitis-media
#15
Suphi Bulğurcu, İlker Burak Arslan, Bünyamin Dikilitaş, İbrahim Çukurova
Introduction  Chronic otitis media can cause multiple middle ear pathogeneses. The surgeon should be aware of relation between ossicular chain erosion and other destructions because of the possibility of complications. Objective  This study aimed to investigate the rates of ossicular erosion in cases of patients with and without facial nerve canal destruction, who had undergone mastoidectomy due to chronic otitis media with or without cholesteatoma. Methods  We retrospectively analyzed three hundred twenty-seven patients who had undergone tympanomastoidectomy between April 2008 and February 2014...
July 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28666703/a-comparative-study-of-med-el-fmt-attachment-to-the-long-process-of-the-incus-in-intact-middle-ears-and-its-attachment-to-disarticulated-stapes-head
#16
Tao Chen, Liu-Jie Ren, Dong-Ming Yin, Jia Li, Lin Yang, Pei-Dong Dai, Tian-Yu Zhang
The Vibrant Soundbridge(©) (VSB) active middle-ear implant provides an effective treatment for mild-to-severe sensorineural hearing loss in the case of normal middle ear anatomy and mixed hearing loss in middle ear malformation. The VSB floating mass transducer (FMT), with proper couplers, can be installed on various structures of the ossicular chain, e.g., the short and long process of the incus, the stapes head, and the stapes footplate. A long process (LP) coupler is most commonly used for FMT attachment to the long process of the incus with intact ossicular chain, while CliP and Bell couplers are two standardized and reliable methods for FMT attachment to the stapes head with missing incus and malleus...
June 23, 2017: Hearing Research
https://www.readbyqxmd.com/read/28657955/the-hannover-coupler-controlled-static-prestress-in-round-window-stimulation-with-the-floating-mass-transducer
#17
Mathias Müller, Rolf Salcher, Thomas Lenarz, Hannes Maier
INTRODUCTION: Stimulation of the cochlear round window (RW) with the floating mass transducer (FMT) still suffers from large variation in clinical outcomes. Beside the geometric mismatch between RW and FMT diameter that is a known limiting factor in achieving optimal coupling between actuator and RW membrane, the applied static force between FMT and RW is usually undefined. In this study, the feasibility and efficacy of a specially designed FMT coupler permitting application of static preloads to the RW membrane to optimize FMT-RW coupling was investigated...
September 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28646272/rhesus-cochlear-and-vestibular-functions-are-preserved-after-inner-ear-injection-of-saline-volume-sufficient-for-gene-therapy-delivery
#18
Chenkai Dai, Mohamed Lehar, Daniel Q Sun, Lani Swarthout Rvt, John P Carey, Tim MacLachlan, Doug Brough, Hinrich Staecker, Alexandra M Della Santina, Timothy E Hullar, Charles C Della Santina
Sensorineural losses of hearing and vestibular sensation due to hair cell dysfunction are among the most common disabilities. Recent preclinical research demonstrates that treatment of the inner ear with a variety of compounds, including gene therapy agents, may elicit regeneration and/or repair of hair cells in animals exposed to ototoxic medications or other insults to the inner ear. Delivery of gene therapy may also offer a means for treatment of hereditary hearing loss. However, injection of a fluid volume sufficient to deliver an adequate dose of a pharmacologic agent could, in theory, cause inner ear trauma that compromises functional outcome...
August 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28609794/-destruction-of-microsurgical-devices-by-sterilisation
#19
Raphaela Berto, Jürgen Strutz
Hospital facilities issue numerous risk announcements on corrosion, deformation or premature wearout of medical devices every year. As there is yet little data on the impact of reprocessing on the quality and durability of microsurgical instruments, this paper aims at evaluating the effects of the reprocessing on microsurgical instruments. Material and Methods 22 brand new microsurgical instruments for stapes surgery were being reprocessed 30 times without being used for surgery or other purposes in the interim time...
June 13, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28604579/how-to-avoid-a-learning-curve-in-stapedotomy-a-standardized-surgical-technique
#20
Pingling Kwok, Otto Gleich, Katharina Dalles, Elisabeth Mayr, Peter Jacob, Jürgen Strutz
OBJECTIVE: To evaluate, whether a learning curve for beginners in stapedotomy can be avoided by using a prosthesis with thermal memory-shape attachment in combination with a standardized laser-assisted surgical technique. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral center. PATIENTS: Fifty-eight ears were operated by three experienced surgeons and compared with a group of 12 cases operated by a beginner in stapedotomy...
August 2017: Otology & Neurotology
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