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https://www.readbyqxmd.com/read/27921116/-the-pressure-equalizing-function-of-the-eustachian-tube-evaluation-in-a%C3%A2-hypo-hyperbaric-pressure-chamber
#1
S Jansen, M F Meyer, K-B Hüttenbrink, D Beutner
BACKGROUND: The Eustachian tube connects the tympanic cavity (cavum tympani) and the nasopharynx, and enables pressure equalization between the middle ear and ambient pressure. Functional pressure compensation is very important for flying and diving in particular, due to non-physiologically large pressure differences. OBJECTIVE: Evaluation of the pressure-equalizing function of the Eustachian tube is still a clinical challenge. This review article evaluates the existing data...
December 5, 2016: HNO
https://www.readbyqxmd.com/read/27913068/occult-infratemporal-fossa-neurofibroma-presenting-with-persistent-unilateral-tinnitus-and-middle-ear-effusion-more-than-meets-the-eye
#2
Lucas P Carlstrom, Kathryn M Van Abel, Matthew L Carlson, Eric J Moore, Janalee K Stokken
Herein, we present the case of a previously healthy 54year-old female who developed several weeks of unilateral tinnitus and aural fullness. She subsequently underwent unilateral pressure equalization tube placement at an outside institution after exam demonstrated a middle ear effusion, conductive hearing loss and normal nasopharyngoscopy. Ultimately, an MRI revealed an occult mass in the infratemporal fossa (ITF), which was successfully removed via an endoscopic transnasal ITF approach. Following resection of a histopathologically confirmed benign neurofibroma, she reported complete resolution of her symptoms...
November 23, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27901563/medical-devices-ear-nose-and-throat-devices-classification-of-the-eustachian-tube-balloon-dilation-system-final-order
#3
(no author information available yet)
The Food and Drug Administration (FDA) is classifying the Eustachian tube balloon dilation system into class II (special controls). The special controls that will apply to the device are identified in this order and will be part of the codified language for the Eustachian tube balloon dilation system's classification. The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.
October 24, 2016: Federal Register
https://www.readbyqxmd.com/read/27884592/nasopharyngeal-carcinoma-with-mastoid-recurrence-after-concurrent-chemoradiotherapy-masquerading-as-acute-otomastoiditis
#4
Chih-Yu Hu, Shiang-Fu Huang, Wan-Ling Ho, Wen-Yu Chuang, Kai-Chieh Chan
Nasopharyngeal cancer (NPC) with mastoid recurrence is extraordinarily rare, and its development is thought to involve the Eustachian tube. We herein report a case of NPC with mastoid recurrence masquerading as acute otomastoiditis with facial paralysis in a 60-year-old man 44 months after concurrent chemoradiotherapy. The diagnosis was confirmed by exploratory tympanomastoidectomy with biopsy and Epstein-Barr-encoding region (EBER) in situ hybridization. Distant liver metastasis was detected simultaneously, and the patient underwent salvage treatment...
November 21, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27878362/a-3-d-analysis-of-the-protympanum-in-human-temporal-bones-with-chronic-ear-disease
#5
Henrique F Pauna, Rafael C Monsanto, Patricia Schachern, Michael M Paparella, Sebahattin Cureoglu
Eustachian tube dysfunction is believed to be an important factor to cholesteatoma development and recurrence of disease after surgical treatment. Although many studies have described prognostic factors, evaluation methods, or surgical techniques for Eustachian tube dysfunction, they relied on the soft tissues of its structure; little is known about its bony structure-the protympanum-which connects the Eustachian tube to the tympanic cavity, and can also be affected by several inflammatory conditions, both from the middle ear or from the nasopharynx...
November 22, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27863632/soft-wall-reconstruction-of-the-canal-wall-with-retrograde-bone-work-for-pediatric-cholesteatoma-long-term-results
#6
Miyako Hatano, Makoto Ito, Hisashi Sugimoto, Masao Noda, Hiroki Hasegawa, Tomokazu Yoshizaki
OBJECTIVE: To retrospectively evaluate the long-term results of surgery for retrograde bone work, using soft-wall reconstruction of the canal wall, for pediatric cholesteatoma. METHODS: We retrospectively evaluated a series of 25 consecutive ears of 24 patients who were ≤16 years of age. All children underwent cholesteatoma surgery between October 2002 and August 2008. The type of cholesteatoma, the length of follow-up, the incidence of residual and recurrent cholesteatoma, postoperative hearing results, and the form of the reconstructed external canal wall and tympanic membrane were assessed...
December 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27861302/steerable-robot-assisted-micromanipulation-in-the-middle-ear-preliminary-feasibility-evaluation
#7
Rashid Yasin, Brendan P O'Connell, Haoran Yu, Jacob B Hunter, George B Wanna, Alejandro Rivas, Nabil Simaan
HYPOTHESIS: The use of a robotic manipulator with a dexterously orientable gripper will expand the ability of middle ear surgeons to perform precise tasks and access otherwise challenging anatomic regions. BACKGROUND: Middle ear surgery presents unique challenges because of the constrained operative space and limited access to certain anatomic regions. METHODS: A custom-designed robot with a sideways-reaching gripper was used to evaluate feasibility of manipulation tasks in different middle-ear anatomical zones...
November 17, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27844486/measurement-of-middle-ear-pressure-changes-during-balloon-eustachian-tuboplasty-a-pilot-study
#8
Ingo Todt, Tarek Abdel-Aziz, Philipp Mittmann, Martin Lehmann, Jörg Ebmeyer, Lars-Uwe Scholtz, Holger Sudhoff
CONCLUSION: The middle ear pressure changes detected during BET can be directly attributed to the balloon inflation and may represent a second, immediate, mechanism of action of BET. BET seems to be safe with respect to the risk of a barotrauma. Further human studies are now necessary to confirm the results and gain more insight into the mechanism of action of BET. OBJECTIVE: Since the introduction of Balloon Eustachian Tuboplasty (BET) as a treatment of chronic Eustachian tube dysfunction, the precise mechanism of action is unknown...
November 15, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27833872/effects-of-chemoradiation-on-hearing-in-patients-with-head-and-neck-malignancies-experience-at-a-tertiary-referral-care-hospital
#9
Abhineet Jain, Praveer K Banerjee, D Manjunath
Hearing loss as a side effect in patients with head and neck malignancies with chemoradiation is frequently ignored. Its effects on auditory functions are less studied and there are studies done on animals which are less reliable. The present study was undertaken to identify the type of hearing loss and also to quantify the degree of hearing loss in these patients. A prospective, descriptive study was undertaken in histologically proven head and neck cancer patients treated with cobalt 60 teletherapy who received a dose of 60-66 Grays (Gy) over a period of 6-7 weeks with concurrent Cisplatin 30 mg/m(2) once weekly for 6 weeks...
December 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27833863/timing-for-removal-of-asymptomatic-long-term-ventilation-tube-in-children
#10
Osama G Abdel-NabyAwad
Otitis media with effusion (OME) is the most frequent illness in children. Surgical treatment options include ventilation tube insertion, adenoidectomy or both. Opinions regarding the risks, benefits and intubation period of ventilation tube insertion vary greatly. To determine the appropriate time for when to remove asymptomatic longterm ventilation T-tubes in children. In this prospective study, we analyzed the results of 120 pediatric patients (6-12 years) (240 ears) with persistent OME; we employed the Goode T-silicone tubes...
December 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27832008/transmastoid-endoscopic-assisted-eustachian-tube-packing-after-translabyrinthine-tumor-resection-a-cadaveric-feasibility-study
#11
Nicholas L Deep, Peter A Weisskopf
HYPOTHESIS: Endoscopically assisted packing of the Eustachian tube (ET) will improve visualization of the protympanic space compared with standard techniques with the microscope. BACKGROUND: Postoperative cerebrospinal fluid (CSF) leakage after translabyrinthine tumor resection remains a problem. Current techniques of packing the ET are limited by inadequate visualization. The objective of this study is to demonstrate the feasibility and usefulness of transmastoid endoscopic-assisted ET packing during translabyrinthine tumor resection...
November 9, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27831980/does-type-of-cleft-palate-repair-influence-postoperative-eustachian-tube-dysfunction
#12
Alexander T Wilson, Graham M Grabowski, Wendy S L Mackey, Derek M Steinbacher
PURPOSE: Otitis media (OM) is a frequent occurrence in the cleft palate population. Palate repair is thought to positively contribute to Eustachian tube function. The purpose of this study is to determine the proportion of cleft patients in our cohort with OM, and if palatoplasty closure technique influences future OM differently. The authors posited that Z-plasty palate repair would result in improved Eustachian tube function, compared with straight-line repair. METHODS: Patient records were accessed and data was recorded on palatoplasties from 2005 to 2007 as well as from 2012 to 2014...
November 9, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27804890/dynamic-cine-imaging-of-the-eustachian-tube-using-four-dimensional-computed-tomography
#13
N Jufas, N Deveau, M Bance
BACKGROUND: Imaging the Eustachian tube has proven difficult as it has an anatomical orientation that is not aligned with standard planes. In addition, the Eustachian tube is a dynamic structure, opening briefly during a variety of physiological manoeuvres. CASE REPORT: A 54-year-old healthy and asymptomatic man underwent computed tomography utilising an area detector scanner. Multiplanar reconstruction was performed at 1 mm intervals. In addition, dynamic clips were constructed to demonstrate air and its movement in the field...
November 2, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27792100/the-effect-of-the-angle-and-length-of-the-eustachian-tube-on-the-success-rate-of-cartilage-type-1-tympanoplasty
#14
Yakup Yegin, Mustafa Çelik, Baver Maşallah Şimşek, Burak Olgun, Aylin Karahasanoğlu, Fatma Tülin Kayhan
OBJECTIVES: To explore the relationships between the angle and length of the eustachian tube (ET) (the ETa and the ETl) and the success rates of type 1 tympanoplasty. STUDY DESIGN: A retrospective clinical chart review. METHODS: In total, 160 patients (81 females and 79 males; average age, 37.12 ± 12.46 years; age range: 18-65 years) who underwent cartilage type 1 tympanoplasty were included. Demographics and anatomical outcomes were recorded...
October 27, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27790571/assessment-of-function-of-eustachian-tube-in-oral-submucous-fibrosis-a-tympanometric-study
#15
Alagiri Chandran, Nalini Aswath
INTRODUCTION: Oral Submucous fibrosis (OSMF) is a chronic insidious disease of oral mucosa that occurs due to areca-nut chewing, consumption of chillies, autoimmunity and genetic predisposition. The disease starts with burning sensation and inability to tolerate spicy foods with gradual reduction in mouth opening due to fibrosis of the oral mucosa. The extension of fibrosis into the naso pharynx leads to reduction in hearing efficiency. It is a potentially malignant lesion and can transform into oral cancer...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27755368/usefulness-of-the-saccharin-test-for-assessment-of-eustachian-tube-function-in-patients-with-chronic-otitis-media-with-perforation
#16
Miki Ikehata, Shigeto Ohta, Yasuo Mishiro, Hirokazu Katsura, Shinya Miuchi, Kenzo Tsuzuki, Masafumi Sakagami
OBJECTIVE: The eustachian tube (ET) has two important functions, ventilation and clearance of the middle ear. We evaluated the ET ventilator function by the sonotubometry and the inflation-deflation test that are widely used today, and the ET clearance function by the saccharin test. Results of both tests were compared with surgical outcomes, and assessed which test was more closely related to the surgical outcomes. STUDY DESIGN: Prospective case series. SETTING: A single university hospital...
October 12, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27751620/hearing-aid-silicone-impression-material-as-a-foreign-body-in-the-middle-ear
#17
Hyun-Min Lee, Keun-Ik Yi, Jae-Hoon Jung, Il-Woo Lee
We report an extremely rare case of hearing aid silicone impression material as a foreign body in the middle ear. Symptoms of the patient were otorrhea and vertigo after taking of a mold impression on his only hearing ear, and the symptoms mimicked chronic otitis media. A temporal bone CT scan revealed foreign body material in the middle ear and Eustachian tube. An intact canal wall mastoidectomy with a facial recess approach and type IV tympanoplasty was performed to remove the silicone impression material...
September 28, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27729557/middle-ear-pressure-changes-during-balloon-eustachian-tuboplasty
#18
Matthew E Smith, James R Tysome
OBJECTIVE: Balloon eustachian tuboplasty (BET) has entered clinical use as a treatment for eustachian tube dysfunction. Some surgeons perform myringotomy prior to BET due to concerns that the increase in middle ear (ME) pressure caused by BET may cause otic barotrauma. We investigated the ME pressure changes occurring during BET in cadavers. STUDY DESIGN: Human cadaver investigation of a surgical technique SETTING: Laboratory study at a tertiary referral center...
October 11, 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/27728775/parapharyngeal-schwannoma-of-the-mandibular-nerve-associated-with-auditory-changes
#19
Jeffrey Y Tsai, Barry C Boyd, Ted C Ondracek, Etern S Park
We present a case of a parapharyngeal schwannoma of the mandibular nerve with intraosseous extension into the mandible. The initial symptoms included decreased auditory acuity, with subsequent magnetic resonance imaging findings suggestive of Eustachian tube obstruction. This represents a rare symptom of schwannomas of the mandibular nerve. Owing to the degree of bony expansion and cortical thinning of the adjacent mandibular ramus, concern existed for a pathologic fracture. Treatment involved complete excision of the lesion using hemimandibulectomy with second stage reconstruction...
September 15, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27723018/the-effect-of-general-anaesthesia-and-neuromuscular-blockade-on-eustachian-tube-compliance-a-prospective-study
#20
Akeelesh Mungur, Guy Cochard, Yves Ozier, Pierre Lafère
OBJECTIVE: The most common complications of hyperbaric oxygen treatment (HBOT) are related to pressure changes on gas-containing cavities. Therefore, inability to auto-inflate the middle ear may result in transient or permanent hearing loss. However, it seems that middle ear barotrauma (MEBt) does not develop more often in mechanically ventilated patients than in ambulatory patients. This might be explained by deep sedation of these patients. Therefore, the aim of this study was to determine whether anaesthesia and/or neuromuscular blockade can influence Eustachian tube (ET) function...
September 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
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