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https://www.readbyqxmd.com/read/28219364/the-relationship-between-changes-of-cervical-sagittal-alignment-after-anterior-cervical-discectomy-and-fusion-and-spino-pelvic-sagittal-alignment-under-roussouly-classification-a-four-year-follow-up-study
#1
Dong-Ning Huang, Miao Yu, Nan-Fang Xu, Mai Li, Shao-Bo Wang, Yu Sun, Liang Jiang, Feng Wei, Xiao-Guang Liu, Zhong-Jun Liu
BACKGROUND: Anterior cervical discectomy and fusion (ACDF) is widely used in the treatment of cervical degenerative disease; however, the variation of cervical sagittal alignment changes after ACDF has been rarely explored. The purpose of this study is to determine the relationship between changes of cervical sagittal alignment after ACDF and spino-pelvic sagittal alignment under Roussouly classification. METHODS: A cohort of 133 Chinese cervical spondylotic patients who received ACDF from 2011 to 2012 was recruited...
February 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28181304/treatment-of-cutaneous-and-or-soft-tissue-manifestations-of-corticosteroids-refractory-chronic-graft-versus-host-disease-cgvhd-by-a-total-nodal-irradiation-tni
#2
G Peyraga, T Lizee, P Gustin, K Clement-Colmou, C Di Bartolo, S Supiot, M A Mahe, S François, M Mege
The management of corticosteroids refractory chronic graft versus host disease (cGVHD) remains controversial. Retrospective analysis of patients treated at the Integrated Center of Oncology by total nodal irradiation (TNI) was performed to evaluate its therapy potency. TNI delivers a dose of 1 Gy in a single session. The delimitation of the fields is clinical (upper-limit : external auditory meatus; lower-limit : mid-femur). No pre-therapeutic dosimetry scanner was necessary. Evaluation of the efficacy was by clinical measures at 6 months after the treatment...
February 9, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28178096/relative-location-of-fundus-meatus-acustici-interni-via-porus-acusticus-internus-in-facial-nerve-decompression
#3
Xu Liu, Haodong Wang, Kailiang Cheng, Youqiong Li
Facial neural edema is the pathophysiological base of Bell's palsy. The middle cranial fossa approach is used to relieve the oppression of facial nerve at its most narrow course in the facial canal. In this research, the authors mainly discussed the internal auditory canal segment of facial nerve, completely in the shadow of the bony structure, which is inconvenient for transmastoid decompression. Therefore, the objective was to explore the definite position of the fundus meatus acustici interni from internal acoustic pore...
February 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28139308/simple-method-for-obtaining-the-optimal-laryngoscopic-view-in-children-a-prospective-observational-study
#4
Eun-Hee Kim, Sang-Hwan Ji, In-Kyung Song, Ji-Hyun Lee, Jin-Tae Kim, Hee-Soo Kim
BACKGROUND: Head and neck positioning has an important effect on laryngeal visualization during laryngoscopy. For small children and infants, a head-flat position is traditionally assumed; however, during laryngoscopy, the optimal head position may result in a superior laryngeal view in certain patients. METHODS: We investigated whether the alignment of the external auditory meatus and the sternal notch with a pillow with an individualized height is associated with improved laryngeal visualization during direct laryngoscopy in pediatric patients...
January 24, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27942547/evaluation-of-condylar-position-after-orthognathic-surgery-for-treatment-of-class-ii-vertical-maxillary-excess-and-mandibular-deficiency-by-using-cone-beam-computed-tomography
#5
Reza Tabrizi, Shoaleh Shahidi, Emad Bahramnejad, Hamidreza Arabion
STATEMENT OF THE PROBLEM: In orthognathic surgeries, proper condylar position is one of the most important factors in postoperative stability. Knowing the condylar movement after orthognathic surgery can help preventing postoperative instabilities. PURPOSE: The aim of this study was to evaluate the condylar positional changes after Le Fort I maxillary superior repositioning along with mandibular advancement by using cone beam computed tomography (CBCT). MATERIALS AND METHOD: This cross-sectional study was conducted on 22 subjects who had class II skeletal malocclusion along with vertical maxillary excess...
December 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27916018/incidental-findings-on-magnetic-resonance-imaging-of-the-internal-auditory-meatus-performed-to-investigate-audiovestibular-symptoms
#6
H M Htun, S L Mui, C Williams, P S Hans
OBJECTIVE: To determine the frequency of incidental findings found on magnetic resonance imaging scans of the internal auditory meatus performed to investigate audiovestibular symptoms, and to determine how to best manage these when found. METHOD: A retrospective review was conducted of internal auditory meatus magnetic resonance imaging scans during a three-month period in the radiology department at a UK district general hospital. RESULTS: A total of 109 scans were reviewed...
January 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27884347/fabrication-of-three-dimensional-scan-to-print-ear-model-for-microtia-reconstruction
#7
Byoungjun Jeon, Chiwon Lee, Myungjoon Kim, Tae Hyun Choi, Sungwan Kim, Sukwha Kim
BACKGROUND: Microtia is a congenital deformity of the external ear that occurs in 1 of every 5000 births. Microtia reconstruction using traditional two-dimensional templates does not provide highly detailed ear shapes. Here, we describe the feasibility of using a three-dimensional (3D) ear model as a reference. MATERIALS AND METHODS: Seven children aged from 11 to 16 (6 grade III and 1 grade II microtia) were recruited from Seoul National University Children's Hospital, Korea...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27863625/facial-nerve-stimulation-following-cochlear-implantation-for-x-linked-stapes-gusher-syndrome-leading-to-identification-of-a-novel-pou3f4-mutation
#8
Jacob L Wester, Catherine Merna, Kevin A Peng, Rebecca Lewis, Ali R Sepahdari, Gail Ishiyama, Kumiko Hosokawa, Kozo Kumakawa, Akira Ishiyama
We report a case of a nine-year-old male who presented with facial nerve stimulation four years after cochlear implantation. Computed tomography was performed revealing a dilated internal auditory meatus and the cochlear implant electrode was found to be protruding into the fallopian canal at the level of the geniculate ganglion. Subsequent genetic analysis demonstrated X-linked deafness type 2 (DFNX2) caused by a novel c.769C > T nucleotide change in the POU domain, class 3, transcription factor 4 gene (POU3F4)...
December 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27818543/vascular-loops-in-the-anterior-inferior-cerebellar-artery-as-identified-by-magnetic-resonance-imaging-and-their-relationship-with-otologic-symptoms
#9
Luiz de Abreu Junior, Cristina Hiromi Kuniyoshi, Angela Borri Wolosker, Maria Lúcia Borri, Augusto Antunes, Vanessa Kiyomi Arashiro Ota, Daniela Uchida
OBJECTIVE: To use magnetic resonance imaging to identify vascular loops in the anterior inferior cerebellar artery and to evaluate their relationship with otologic symptoms. MATERIALS AND METHODS: We selected 33 adults with otologic complaints who underwent magnetic resonance imaging at our institution between June and November 2013. Three experienced independent observers evaluated the trajectory of the anterior inferior cerebellar artery in relation to the internal auditory meatus and graded the anterior inferior cerebellar artery vascular loops according to the Chavda classification...
September 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/27762257/soft-tissue-conduction-as-a-possible-contributor-to-the-limited-attenuation-provided-by-hearing-protection-devices
#10
Shai Chordekar, Cahtia Adelman, Haim Sohmer, Liat Kishon-Rabin
CONTEXT: Damage to the auditory system by loud sounds can be avoided by hearing protection devices (HPDs) such as earmuffs, earplugs, or both for maximum attenuation. However, the attenuation can be limited by air conduction (AC) leakage around the earplugs and earmuffs by the occlusion effect (OE) and by skull vibrations initiating bone conduction (BC). AIMS: To assess maximum attenuation by HPDs and possible flanking pathways to the inner ear. SUBJECTS AND METHODS: AC attenuation and resulting thresholds were assessed using the real ear attenuation at threshold (REAT) procedure on 15 normal-hearing participants in four free-field conditions: (a) unprotected ears, (b) ears covered with earmuffs, (c) ears blocked with deeply inserted customized earplugs, and (d) ears blocked with both earplugs and earmuffs...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27736232/bilateral-aural-adenocarcinoma-in-a-congo-african-grey-parrot-psittacus-erithacus-erithacus
#11
Emma L Houck, Krista A Keller, Michelle G Hawkins, Andrew G Burton, Keriann M Casey, Kevin Keel, Nathan Tong, David Sanchez-Migallon Guzman
A 28-year-old female Congo African grey parrot ( Psittacus erithacus erithacus) was evaluated because of a mass in the left external auditory meatus. Results of a computed tomography scan revealed an osteolytic left hemimandibular mass with irregular bone production and a soft tissue mass in the left external auditory meatus. Results of cytologic examination of fine needle aspirates of the hemimandible were interpreted as adenocarcinoma with reactive osteoblasts. The owner chose palliative treatment, and a debulking procedure was performed on the left external auditory meatus mass 52 days after initial presentation to control self-trauma...
September 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/27727083/problems-and-pitfalls-of-qualification-for-extracorporeal-rewarming-in-severe-accidental-hypothermia
#12
REVIEW
Anna Jarosz, Sylweriusz Kosiński, Tomasz Darocha, Peter Paal, Robert Gałązkowski, Hubert Hymczak, Rafał Drwiła
OBJECTIVES: When establishing the Severe Hypothermia Treatment Centre, certain problems and pitfalls regarding the qualification for extracorporeal rewarming were encountered. The authors shared their experience and opened a discussion with other centers that deal with severe, accidental hypothermia. DESIGN: Retrospective analysis of medical records of all patients examined by the hypothermia coordinator. SETTING: Patients consulted and treated by the Severe Hypothermia Treatment Centre...
December 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27626087/is-a-solitary-fibrous-tumor-in-the-external-auditory-canal-benign
#13
Chi-Kyou Lee, Hyun Ju Lee
A solitary fibrous tumor (SFT) is an extremely rare, distinct otological soft-tissue tumor. Only two such tumors in the external auditory canal have been reported. A SFT related to hemangiopericytomas (HPC), which commonly arise in the central nervous system. HPCs act malignant in many cases, while SFTs at other sites are mainly benign. A 25-year-old female presented with highly vascular tumor at the right external auditory meatus and bleeding from the mass when a crust was removed from its surface. After excisional biopsy followed by pre-operative embolization, this tumor confirmed with SFT...
September 2016: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/27606016/computed-tomography-morphometric-analysis-of-the-central-clival-depression-and-petroclival-angle-for-application-of-the-presigmoid-approach-in-the-pediatric-population
#14
Sohum K Desai, Da'Marcus Baymon, Eric Sieloff, Kenneth Maynard, Marc Moisi, Achal P Patel, Joel T Patterson
AIMS: Lateral transtemporal approaches are useful for addressing lesions located ventral to the brainstem, especially when the pathologic diagnosis of the tumor dictates that a gross or near total resection improves outcomes. One approach, the presigmoid approach receives little attention in the pediatric population thus far. We sought to characterize morphometric changes, particularly the clival depth and the petroclival Cobb angle, that occur in the temporal bones of children and draw implications about doing a presigmoid approach in children...
April 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27591576/finite-element-modelling-of-sound-transmission-from-outer-to-inner-ear
#15
Bruno Areias, Carla Santos, Renato M Natal Jorge, Fernanda Gentil, Marco Pl Parente
The ear is one of the most complex organs in the human body. Sound is a sequence of pressure waves, which propagates through a compressible media such as air. The pinna concentrates the sound waves into the external auditory meatus. In this canal, the sound is conducted to the tympanic membrane. The tympanic membrane transforms the pressure variations into mechanical displacements, which are then transmitted to the ossicles. The vibration of the stapes footplate creates pressure waves in the fluid inside the cochlea; these pressure waves stimulate the hair cells, generating electrical signals which are sent to the brain through the cochlear nerve, where they are decoded...
November 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/27586750/auditory-sensitivity-to-local-stimulation-of-the-head-surface-in-a-beluga-whale-delphinapterus-leucas
#16
Vladimir V Popov, Evgeniya V Sysueva, Dmitry I Nechaev, Alena A Lemazina, Alexander Ya Supin
Using the auditory evoked response technique, sensitivity to local acoustic stimulation of the ventro-lateral head surface was investigated in a beluga whale (Delphinapterus leucas). The stimuli were tone pip trains of carrier frequencies ranging from 16 to 128 kHz with a pip rate of 1 kHz. For higher frequencies (90-128 kHz), the low-threshold point was located next to the medial side of the middle portion of the lower jaw. For middle (32-64 kHz) and lower (16-22.5 kHz) frequencies, the low-threshold point was located at the lateral side of the middle portion of the lower jaw...
August 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27586115/neck-forces-and-moments-of-human-volunteers-and-post-mortem-human-surrogates-in-low-speed-frontal-sled-tests
#17
Stephanie M Beeman, Andrew R Kemper, Stefan M Duma
OBJECTIVE: The objective of this study was to quantify the effects of active muscles (e.g. conscious bracing, resting tone, and reflex response) and acceleration severity on the neck forces and moments generated during low-speed frontal sled tests with adult male human volunteers and post mortem human surrogates (PMHSs). METHODS: A total of 24 frontal sled tests were analyzed including male volunteers of approximately 50th percentile height and weight (n = 5) and PMHSs (n = 2)...
September 2016: Traffic Injury Prevention
https://www.readbyqxmd.com/read/27513703/surgical-management-of-petrous-apex-cholesterol-granulomas-by-an-infralabyrinthine-approach-our-experience-with-fourteen-cases
#18
F Y Russo, D De Seta, I Mosnier, O Sterkers, D Bernardeschi
No abstract text is available yet for this article.
August 11, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27500982/morphogenesis-of-the-middle-ear-ossicles-and-spatial-relationships-with-the-external-and-inner-ears-during-the-embryonic-period
#19
Maimi Ozeki-Satoh, Aoi Ishikawa, Shigehito Yamada, Chigako Uwabe, Tetsuya Takakuwa
We describe the three-dimensional morphogenesis of the middle ear ossicles (MEOs) according to Carnegie stage (CS) in human embryos. Seventeen samples including 33 MEOs from CS18 to 23 were selected from the Kyoto Collection. The primordia of the MEOs and related structures were histologically observed and three-dimensionally reconstructed from digital images. The timing of chondrogenesis was variable among structures. The stapes was recognizable as a vague condensation of the mesenchymal cells in all samples from CS18, whereas the malleus and incus were recognizable at CS19...
October 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27488335/the-role-of-subtotal-petrosectomy-in-cochlear-implantation
#20
P Casserly, P L Friedland, M D Atlas
BACKGROUND: Subtotal petrosectomy combined with cochlear implantation is a procedure required in specific situations. METHODS: A retrospective review of all cases of subtotal petrosectomy in cochlear implant surgery over a five-year period was performed. The indications, complications and outcomes for this procedure are outlined. RESULTS: Sixteen patients underwent cochlear implantation in combination with subtotal petrosectomy and blind sac closure of the external auditory meatus from 2008 to 2013...
July 2016: Journal of Laryngology and Otology
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