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Endoscopic middle ear

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https://www.readbyqxmd.com/read/29728102/stenting-the-eustachian-tube-to-treat-chronic-otitis-media-a-feasibility-study-in-sheep
#1
Friederike Pohl, Robert A Schuon, Felicitas Miller, Andreas Kampmann, Eva Bültmann, Christian Hartmann, Thomas Lenarz, Gerrit Paasche
BACKGROUND: Untreated chronic otitis media severely impairs quality of life in affected individuals. Local destruction of the middle ear and subsequent loss of hearing are common sequelae, and currently available treatments provide limited relief. Therefore, the objectives of this study were to evaluate the feasibility of the insertion of a coronary stent from the nasopharynx into the Eustachian tube in-vivo in sheep and to make an initial assessment of its positional stability, tolerance by the animal, and possible tissue reactions...
May 4, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29714773/endoscopic-optical-coherence-tomography-enables-morphological-and-subnanometer-vibratory-imaging-of-the-porcine-cochlea-through-the-round-window
#2
Wihan Kim, Sangmin Kim, John S Oghalai, Brian E Applegate
A highly phase stable hand-held (HH) endoscopic system has been developed for optical coherence tomography and vibrometry. Designed to transit the ear canal to the middle ear space and peer through the round window (RW), it is capable of imaging the vibratory function of the cochlear soft tissues with subnanometer scale sensitivity. A side-looking, 9 cm long rigid endoscope with a distal diameter of 1.2 mm, was able to fit within the RW niche and provide imaging access. The phase stability was achieved in part by fully integrating a Michelson interferometer into the HH device...
May 1, 2018: Optics Letters
https://www.readbyqxmd.com/read/29602585/trend-in-otolaryngological-surgeries-in-an-era-of-super-aging-descriptive-statistics-using-a-japanese-inpatient-database
#3
Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba
OBJECTIVE: To reveal the age distribution and capture the longitudinal trend in otolaryngological surgeries performed in Japan, where society is rapidly aging. METHODS: Using the Diagnosis Procedure Combination database, we extracted data on patients who were hospitalized and underwent any type of otolaryngological surgery in departments of otolaryngology or head and neck surgery from fiscal year 2007 to fiscal year 2013. Type of surgery, patient's age, and fiscal year were compared...
March 27, 2018: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29516061/endoscopic-excision-of-a-tympanic-paraganglioma-training-the-next-generation-of-ear-surgeons
#4
Natasha Pollak, Resha S Soni
Tympanic paragangliomas are uncommon vascular tumors of neural crest origin. Classically these lesions have been surgically managed via a transcanal or transmastoid approach using binocular microscopy. We describe a case in which a tympanic paraganglioma was removed via a transcanal approach, using the endoscope exclusively. Endoscopic ear surgery enhances visualization, helping to ensure complete tumor removal, while reducing unnecessary dissection and its associated morbidity. For small middle ear neoplasms, a purely endoscopic approach is feasible, with excellent results...
September 2017: World Journal of Otorhinolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29516060/endoscopic-transcanal-modified-canal-wall-down-mastoidectomy-for-cholesteatoma
#5
Hamed Sajjadi
Attic cholesteatoma with antral extension in tight sclerotic mastoid cavities is a common presentation that creates difficult decision-making intraoperatively. Drilling through a sclerotic and small mastoid cavity, keeping the canal wall intactis often difficult and increases the risk of serious injury. Consequently, a canal-wall-down mastoidectomy is often performed. The endoscopic transcanal modified canal-wall-down mastoidectomy approach allows the benefits of an open cavity for cholesteatoma resection and the benefits of a closed cavity for better long-term care and a more normal ear canal and middle ear reconstruction...
September 2017: World journal of otorhinolaryngology—head and neck surgery
https://www.readbyqxmd.com/read/29516056/endoscopic-and-minimally-invasive-ear-surgery-a-path-to-better-outcomes
#6
Natasha Pollak
The development of endoscopic ear surgery techniques promises to change the way we approach ear surgery. In this review paper, we explore the current evidence, seek to determine the advantages of endoscopic ear surgery, and see if these advantages are both measureable and meaningful. The wide field of view of the endoscope allows the surgeon to better visualize the various recesses of the middle ear cleft. Endoscopes make it possible to address the target pathology transcanal, while minimizing dissection or normal tissue done purely for exposure, leading to the evolution of minimally-invasive ear surgery and reducing morbidity...
September 2017: World journal of otorhinolaryngology—head and neck surgery
https://www.readbyqxmd.com/read/29447797/the-anatomic-applicability-of-transcanal-endoscopic-ear-surgery-in-children
#7
Wan-Hsuan Sun, Chin-Lung Kuo, Tzu-Chin Huang
OBJECTIVE: The feasibility of TEES in dealing with pediatric middle ear disease is still under investigation. The goal of this study was to compare anatomical dimensions of the EAC between children and adults, and to analyze the anatomic applicability of TEES in children. METHODS: Forty pediatric (18 years old and younger) and 20 adult patients who received TB-HRCT to evaluate middle ear conditions were enrolled from December 2010 to December 2015. Dimensions including the diameters of the EAC orifice, isthmus and tympanic membrane annulus, the length of EAC, the height of the middle ear, and the angle between tympanic membrane and EAC axis were determined according to the TB-HRCT data...
February 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29429024/middle-ear-microvascularization-an-in-vivo-endoscopic-anatomical-study
#8
Matteo Alicandri-Ciufelli, Pierre Guarino, Filippo Fabbri, Elio Maria Cunsolo, Livio Presutti, Lukas Anschuetz
PURPOSE: To describe the in vivo vascularization of middle ear by an endoscopic point of view, particularly focusing on the medial wall of tympanic cavity and incudostapedial region (ISR). STUDY DESIGN: Case series with surgical videos review and anatomical description. METHODS: 48 videos from exclusive endoscopic middle ear surgery performed at the University Hospital of Modena from November 2015 to July 2017 were reviewed. Data about anatomy of vessels, and blood flow direction (BFD) were collected in an appropriate database for further analyses...
April 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29423745/in-reply-to-commentary-to-endoscopic-and-clinical-benefits-of-hyaluronic-acid-in-children-with-chronic-adenoiditis-and-middle-ear-disease-by-zhengcai-lou
#9
S Torretta, P Marchisio, V Rinaldi, D Carioli, E Nazzari, L Pignataro
Some considerations will be expressed in consideration of the commentary previously published. In particular, we underline that no other medications were administered to the patients during the study period and any clinical evaluation was postponed in case of acute upper respiratory tract infection in the previous 14 days. We strongly advocate antibiotic treatment during any acute otitis media episode, and we agree that topically administered hyaluronic acid should be considered as a supporting treatment, "complementary to traditional therapies" in children with recurrent disease...
March 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29405836/expanded-transcanal-transpromontorial-approach-a-novel-surgical-technique-for-cerebellopontine-angle-vestibular-schwannoma-removal
#10
Daniele Marchioni, Marco Carner, Davide Soloperto, Luca Bianconi, Andrea Sacchetto, Luca Sacchetto, Barbara Masotto, Livio Presutti
Objective Vestibular schwannoma (VS) is a benign tumor of the lateral skull base. Different microscopic surgical techniques are described in literature: the retrosigmoid and translabyrinthine approaches are used to treat big tumors located in the cerebellopontine angle, and the middle cranial fossa approach is utilized for small tumors with good hearing preservation. The expanded transcanal transpromontorial (ExpTT) approach is a combined microscopic-endoscopic technique previously indicated for Koos stage I and II VS and now proposed for larger VS, up to 3 cm in diameter, with linear progression into the cerebellopontine angle and touching the brainstem...
April 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29383310/total-endoscopic-approach-in-glomus-tympanicum-surgery
#11
Ahmad Daneshi, Alimohamad Asghari, Saleh Mohebbi, Mohammad Farhadi, Farhad Farahani, Mohammad Mohseni
Introduction: Glomus tympanicum (GT) is a benign primary tumor of the middle ear. The evolution of endoscopic ear surgery has allowed for an alternative approach to managing this vascular tumor. The purpose of this study was to evaluate an endoscopic approach in GT surgery, and also to investigate its applicability and feasibility. Materials and Methods: Prospectively, 13 class I and II patients, according to the Glasscock-Jackson glomus classification, were candidates for management via a transcanal endoscopic approach...
November 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29364219/discovering-middle-ear-anatomy-by-transcanal-endoscopic-ear-surgery-a-dissection-manual
#12
Lukas Anschuetz, Livio Presutti, Daniele Marchioni, Marco Bonali, Wilhelm Wimmer, Domenico Villari, Marco Caversaccio
The middle ear is located in the center of the temporal bone and bears a highly complex anatomy. The recently introduced exclusively endoscopic transcanal approach to the middle ear is a minimally invasive technique sparing the bone and mucosa of the mastoid bone, since the middle ear is accessed through the external auditory canal. This emerging method has several advantages over the traditional (microscopic) approaches to the middle ear such as the panoramic wide-angle views of the anatomy, the possibility to approach and magnify tiny structures, and the possibility of looking around the corner using angled endoscopes...
January 11, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29342049/the-impact-of-the-transcanal-endoscopic-approach-and-mastoid-preservation-on-recurrence-of-primary-acquired-attic-cholesteatoma
#13
Livio Presutti, Lukas Anschuetz, Alessia Rubini, Marco Ruberto, Matteo Alicandri-Ciufelli, Marco Dematte, Marco Caversaccio, Daniele Marchioni
OBJECTIVE: We aim to investigate the factors associated with recurrent disease following surgery for primary acquired attic cholesteatoma. We hypothesize that minimal invasive, mucosal sparing operation techniques have beneficial effects on the outcome in terms of recurrence. STUDY DESIGN: Retrospective study. SETTING: Tertiary referral center. PARTICIPANTS: A total of 110 patients presenting with primary acquired attic cholesteatoma were enrolled in the study...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29229399/the-malleus-cap-anatomic-description-of-cartilage-of-the-lateral-process-of-the-malleus
#14
Elias Michaelides, Ankit Kansal, Sara Rutter, Christopher A Schutt
PURPOSE: To anatomically describe a cartilaginous cap attached to the lateral process of the malleus. STUDY DESIGN: Histologic and gross anatomic review. METHODS: Twenty temporal bones were histologically reviewed. The anatomical relationship between the tympanic membrane and malleus was then defined at the level of the lateral process of the malleus and the long process of the malleus. Separately, gross evaluation of these levels at the macroscopic level was undertaken through endoscopic imaging in five subjects...
October 25, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29210946/transcanal-endoscopic-ear-surgery-to-treat-middle-ear-cholesteatoma-should-be-performed-cautiously
#15
Zhengcai Lou
No abstract text is available yet for this article.
January 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29209853/3d-endoscopic-ear-surgery-a-clinical-pilot-study
#16
Daniele Bernardeschi, Ghizlene Lahlou, Daniele De Seta, Francesca Yoshie Russo, Isabelle Mosnier, Olivier Sterkers
OBJECTIVE: To evaluate the feasibility and efficacy of a new high-resolution 3D endoscope in endoscopic ear and lateral skull base surgery. METHODS: Eight patients, five women and three men, were included in this clinical pilot prospective study. Their age was 38 ± 17.3 years (mean ± SD, range 17-54 years). The right side was involved in five cases, and the left side in three cases. There were three cases of chronic otitis, one case of cholesteatoma of the external auditory canal, one case of otosclerosis, one case of cochlear implant surgery, and two cases of stage 2 vestibular schwannoma operated on with a retrosigmoid approach to preserve hearing...
February 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29202035/through-the-eustachian-tube-and-beyond-a-new-miniature-robotic-endoscope-to-see-into-the-middle-ear
#17
Loris Fichera, Neal P Dillon, Dongqing Zhang, Isuru S Godage, Michael A Siebold, Bryan I Hartley, Jack H Noble, Paul T Russell, Robert F Labadie, Robert J Webster
This paper presents a novel miniature robotic endoscope that is small enough to pass through the Eustachian tube and provide visualization of the middle ear (ME). The device features a miniature bending tip previously conceived of as a small-scale robotic wrist that has been adapted to carry and aim a small chip-tip camera and fiber optic light sources. The motivation for trans-Eustachian tube ME inspection is to provide a natural-orifice-based route to the ME that does not require cutting or lifting the eardrum, as is currently required...
2017: IEEE Robotics and Automation Letters
https://www.readbyqxmd.com/read/29192624/role-of-trichloroacetic-acid-and-gelfoam-in-closure-of-tympanic-membrane-perforations
#18
M Singh, M Kaur, B Singh, K Singh, A Singh, A Kaur
OBJECTIVE: The aim of the study was to study the closure of dry central type of tympanic membrane perforations by chemical cautery and improvement of hearing, to analyse the effect of Gelfoam on nonhealing small tympanic membrane perforations, and to examine the relevance of conservative means of closure of tympanic membrane perforations as an office procedure. MATERIALS AND METHODS: In this study, 100 patients attending the outpatient department were enrolled. Cautery of perforation margin was carried out with 50% trichloroacetic acid (TCA)...
October 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29186936/endoscope-assisted-cochlear-implantation
#19
Enis Alpin Güneri, Yüksel Olgun
Objectives: Our aim was to present our endoscope-assisted cochlear implantation (CI) technique, in which the middle ear landmarks were identified through the facial recess exposure by using an endoscopic view without elevating the tympanic annulus. The secondary goal was to assess whether the situation of difficult surgical exposure could be predicted by evaluating preoperative axial computed tomography (CT) examinations. Methods: CT examinations and surgical outcomes of endoscope-assisted CI surgeries were analyzed...
December 1, 2017: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/29169954/application-of-endoscopy-in-otology-changes-over-the-last-8years-in-korean-otological-society
#20
Se-Joon Oh, Eui-Kyung Goh, Hyun-Min Lee, Soo-Keun Kong, Il Joon Moon, Jong-Woo Chung, Il-Woo Lee
OBJECTIVES: Despite the worldwide availability of endoscope in otology, it still has not replaced the microscopic surgery as it has for nose surgery. In 2008, we administered a questionnaire on the preference of using otoscopes in Korea. In light of the worldwide availability of endoscopic ear surgery, we have now conducted a more detailed survey to determine if this preference has changed over 8years. SUBJECTS AND METHODS: A questionnaire consisting of 10 questions was used to survey members of the Korean Otological Society who were actively performing middle ear surgery...
September 22, 2017: American Journal of Otolaryngology
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