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temporal bone trauma

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https://www.readbyqxmd.com/read/27906849/carotid-artery-aneurysm-a-rare-cause-of-hemotympanum
#1
Selçuk Güneş, Zahide Mine Yazici, Hakan Selçuk, Baver Masallah Şimşek, Mustafa Çelik, Fatma Tülin Kayhan
Temporal bone fractures can occur as a result of various head trauma. The most common cause of the hemotympanum is traumatic temporal bone fracture. Facial paralysis and hearing loss can be seen associated with temporal bone fracture. The development of the internal carotid artery aneurysm after temporal bone fracture is extremely rare. In this article, the authors evaluated carotid artery aneurysm that developed after temporal fracture and aneurism compressed by coagulated blood mass which showed itself as a hemotympanum...
November 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27860211/ultrasound-guided-peristyloid-steroid-injection-for-eagle-syndrome
#2
Timothy Maher, Hariharan Shankar
The styloid process arising from the temporal bone is normally about 2.5 cm in length. For various reasons, including trauma and inflammation, it may become elongated. This elongated styloid process, when symptomatic with clinical signs and symptoms suggestive of local compression or neuropathic pain, is termed Eagle syndrome. Glossopharyngeal neuralgia is characterized by intermittent shooting sharp pain in the jaw, throat, tongue, and ear. Conservative management includes anticonvulsants, tricyclic antidepressants, and anti-inflammatory agents...
November 11, 2016: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/27825860/damage-to-inner-ear-structure-during-cochlear-implantation-correlation-between-insertion-force-and-radio-histological-findings-in-temporal-bone-specimens
#3
Daniele De Seta, Renato Torres, Francesca Yoshie Russo, Evelyne Ferrary, Guillaume Kazmitcheff, Dominique Heymann, Jerome Amiaud, Olivier Sterkers, Daniele Bernardeschi, Yann Nguyen
Cochlear implant insertion should be as least traumatic as possible in order to reduce trauma to the cochlear sensory structures. The force applied to the cochlea during array insertion should be controlled to limit insertion-related damage. The relationship between insertion force and histological traumatism remains to be demonstrated. Twelve freshly frozen cadaveric temporal bones were implanted with a long straight electrodes array through an anterior extended round window insertion using a motorized insertion tool with real-time measurement of the insertion force...
November 4, 2016: Hearing Research
https://www.readbyqxmd.com/read/27765115/-pathological-changes-of-temporal-bone-after-cochlear-implantation-and-the-countermeasures
#4
P Han, X R Niu, X Y Du, Z C Chen, Y Xu, Y Cheng, Y Gao, Q Zhang, M Xu
Cochlear implant (CI) is an artificial electronic device which can provide a sense of sound to a patient with severe or profound hearing loss. Pathological changes have been observed after CI surgery, which might influence the effectiveness of the CI procedure. In this review, we divided the postoperative pathological changes of the temporal bone into two categories according to different stages: immediate trauma and delayed side effects. Immediate trauma might arise from traumatic insertion of the electrode during CI surgery, which included trauma at cochleostomy site, lateral wall trauma, basilar membrane injury, osseous lamina fracture and modiolar injury...
October 7, 2016: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/27755369/the-effect-of-scala-tympani-morphology-on-basilar-membrane-contact-with-a-straight-electrode-array-a-human-temporal-bone-study
#5
Juul Verberne, Frank Risi, Luke Campbell, Scott Chambers, Stephen O'Leary
HYPOTHESIS: Scala tympani morphology influences the insertion dynamics and intra-scalar position of straight electrode arrays. BACKGROUND: Hearing preservation is the goal of cochlear implantation with current thin straight electrode arrays. These hug the lateral wall, facilitating full, atraumatic insertions. However, most studies still report some postoperative hearing loss. This study explores the influence of scala tympani morphology on array position relative to the basilar membrane and its possible contribution to postoperative hearing loss...
November 10, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27738540/contralateral-cochlear-labyrinthine-concussion-without-temporal-bone-fracture-unusual-posttraumatic-consequence
#6
I M Villarreal, D Méndez, J M Duque Silva, P Ortega Del Álamo
Introduction. Labyrinthine concussion is a term used to describe a rare cause of sensorineural hearing loss with or without vestibular symptoms occurring after head trauma. Isolated damage to the inner ear without involving the vestibular organ would be designated as a cochlear labyrinthine concussion. Hearing loss is not a rare finding in head trauma that involves petrous bone fractures. Nevertheless it generally occurs ipsilateral to the side of the head injury and extraordinarily in the contralateral side and moreover without the presence of a fracture...
2016: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/27736232/bilateral-aural-adenocarcinoma-in-a-congo-african-grey-parrot-psittacus-erithacus-erithacus
#7
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/27642666/the-effect-of-piston-diameter-in-stapedotomy-for-otosclerosis-a-temporal-bone-model
#8
Inge Wegner, Mostafa M A S Eldaebes, Thomas G Landry, Wilko Grolman, Manohar L Bance
HYPOTHESIS: The use of larger-diameter pistons in stapedotomy leads to better hearing outcomes compared with the use of smaller-diameter pistons. There is an interaction between stapes piston diameter and fenestration diameter. BACKGROUND: Otosclerosis can be treated surgically by removing part of the stapes and bypassing the stapes footplate with a prosthesis. Available piston shaft diameters range between 0.3 and 0.8 mm. There has been a tendency toward the use of smaller-diameter pistons, because of a suspected decreased risk of cochlear trauma and subsequent sensorineural hearing loss (SNHL) with smaller pistons...
December 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27636391/incidence-of-pediatric-superior-semicircular-canal-dehiscence-and-inner-ear-anomalies-a-large-multicenter-review
#9
Eric M Sugihara, Seilesh C Babu, Dennis J Kitsko, Michael S Haupert, Prasad J Thottam
OBJECTIVE: To determine the pediatric incidence and association of superior semicircular canal dehiscence (SSCD) with inner ear (IE) anomalies. STUDY DESIGN: Retrospective chart review. SETTING: Two tertiary referral centers. PATIENTS: Children less than 18 years who received a 0.5 mm or less collimated computed tomography study including the temporal bones between 2010 and 2013 for reasons including, but not limited to, hearing loss, trauma, and infection...
October 2016: Otology & Neurotology
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
#10
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/27577755/surgical-treatment-of-lateral-skull-base-lesions-and-reconstruction-of-the-skull-base-a-report-of-20-cases
#11
Jia Xu, Haijin Yi, Xin Li, Wenjing Chen, Jinkun Xu
OBJECTIVE: To investigate the surgical treatment and related experience of lateral skull base lesions. METHODS: In a retrospective, clinical data analysis of 20 patients with lateral skull base diseases, 11 cases with temporal bone space-occupying lesions and intracranial invasion were treated by translabyrinthine surgery, mastoid cavity drainage, or transmastoid surgery to remove the lesion; two cases of cholesteatoma with destruction of tympanic cavity and tympanic sinus canopy with intracranial invasion were treated by extended radical mastoidectomy; seven cases with lateral skull base bone destruction with cerebrospinal fluid otorrhea caused by trauma and deformity were treated by translabyrinth and transmastoid repair...
August 31, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27413578/superficial-temporal-artery-pseudoaneurysm-presenting-as-a-growing-pulsatile-and-tender-mass
#12
Arsen Seferi, Ridvan Alimehmeti, Ermira Pajaj, Gentian Vyshka
BACKGROUND: Superficial temporal artery (STA) pseudoaneurysms have been reported in the literature since the mid of seventeenth century from Bartholin, however, there is an increasing number of cases, suggesting a diversity of etiological factors. Among these, traumatic events, even of an iatrogenic nature, have been identified as causative factors for nonspontaneous STA pseudoaneurysms. Regional pain and tenderness, troublesome pulsations of the mass, cosmetic concerns as well as the risk of bleeding warrant a thorough evaluation and a definite interventional approach to the condition...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27389328/posttraumatic-temporal-bone-meningocele-presenting-as-a-cystic-mass-in-the-external-auditory-canal
#13
Babak Alijani, Hamid Reza Bagheri, Shahrokh Yousefzadeh Chabok, Hamid Behzadnia, Siavash Dehghani
INTRODUCTION: Temporal bone meningoencephalic herniation may occur in head trauma. It is a rare condition with potentially dangerous complications. Several different routes for temporal bone meningoencephalocele have been proposed. CLINICAL REPORT: An11-year-old boy with history of head trauma initially presented with a 9-months history of progressive right-sided hearing loss and facial weakness. The other complaint was formation of a cystic mass in the right external auditory canal...
July 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27387791/temporal-bone-fracture-evaluation-in-the-era-of-modern-computed-tomography
#14
S D Schubl, T R Klein, R J Robitsek, S Trepeta, K Fretwell, D Seidman, M Gottlieb
BACKGROUND: Temporal bone fractures (TBFs) are harbingers of high energy head trauma that can result in a variety of significant complications of the auditory, vestibular, nervous, and vascular systems. Multiple cohort studies have identified the incidence and proper evaluation of these fractures. We hypothesize that these have changed with the advent of modern high resolution computer tomography (CT) imaging. METHODS: We performed a retrospective review of all TBFs admitted to an urban level one trauma center between June 1, 2011 and May 31, 2015...
September 2016: Injury
https://www.readbyqxmd.com/read/27371868/correlation-between-word-recognition-score-and-intracochlear-new-bone-and-fibrous-tissue-after-cochlear-implantation-in-the-human
#15
Takefumi Kamakura, Joseph B Nadol
Cochlear implantation is an effective, established procedure for patients with profound deafness. Although implant electrodes have been considered as biocompatible prostheses, surgical insertion of the electrode induces various changes within the cochlea. Immediate changes include insertional trauma to the cochlea. Delayed changes include a tissue response consisting of inflammation, fibrosis and neo-osteogenesis induced by trauma and an immunologic reaction to a foreign body. The goal of this study was to evaluate the effect of these delayed changes on the word recognition scores achieved post-operatively...
September 2016: Hearing Research
https://www.readbyqxmd.com/read/27313403/effects-of-acl-reconstructive-surgery-on-temporal-variations-of-cytokine-levels-in-synovial-fluid
#16
Marco Bigoni, Marco Turati, Marta Gandolla, Paola Sacerdote, Massimiliano Piatti, Alberto Castelnuovo, Silvia Franchi, Massimo Gorla, Daniele Munegato, Diego Gaddi, Alessandra Pedrocchi, Robert J Omeljaniuk, Vittorio Locatelli, Antonio Torsello
Anterior cruciate ligament (ACL) reconstruction restores knee stability but does not reduce the incidence of posttraumatic osteoarthritis induced by inflammatory cytokines. The aim of this research was to longitudinally measure IL-1β, IL-6, IL-8, IL-10, and TNF-α levels in patients subjected to ACL reconstruction using bone-patellar tendon-bone graft. Synovial fluid was collected within 24-72 hours of ACL rupture (acute), 1 month after injury immediately prior to surgery (presurgery), and 1 month thereafter (postsurgery)...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27273406/cochlear-histopathology-as-observed-in-two-patients-with-a-cochlear-implant-electrode-with-positioner
#17
Takefumi Kamakura, Joseph B Nadol
HYPOTHESIS: This study reports the cochlear histopathology of two patients who during life underwent cochlear implantation with a positioner. BACKGROUND: A silastic positioner introduced by the Advanced Bionics Corporation in 1999 was designed to position the electrode of the cochlear implant close to the modiolus. The positioner was recalled in the United States in July 2002 because of an apparent higher incidence of bacterial meningitis in patients in whom the positioner had been placed...
July 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27260269/a-cool-approach-to-reducing-electrode-induced-trauma-localized-therapeutic-hypothermia-conserves-residual-hearing-in-cochlear-implantation
#18
Ilmar Tamames, Curtis King, Esperanza Bas, W Dalton Dietrich, Fred Telischi, Suhrud M Rajguru
OBJECTIVE: The trauma caused during cochlear implant insertion can lead to cell death and a loss of residual hair cells in the cochlea. Various therapeutic approaches have been studied to prevent cochlear implant-induced residual hearing loss with limited success. In the present study, we show the efficacy of mild to moderate therapeutic hypothermia of 4 to 6 °C applied to the cochlea in reducing residual hearing loss associated with the electrode insertion trauma. APPROACH: Rats were randomly distributed in three groups: control contralateral cochleae, normothermic implanted cochleae and hypothermic implanted cochleae...
September 2016: Hearing Research
https://www.readbyqxmd.com/read/27246747/the-rational-for-a-mid-scala-electrode-array
#19
P J Boyle
Today increasing numbers of cochlear implant candidates have residual hearing that can be aided and hence is worth trying to preserve. This means that surgical technique and electrode array design must be adapted to minimize trauma. Wide opening of the round window is often preferred to reduce drill related trauma and to avoid pressure spikes during electrode array insertion. A recent meta-analysis suggested that there is no significant correlation between hearing preservation and either insertion depth or scala position...
June 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/27242365/middle-cranial-fossa-dehiscence-as-an-incidental-finding-on-ct
#20
Taher Valika, Miriam Redleaf
OBJECTIVES: This retrospective chart review demonstrates that the prevalence of middle cranial fossa (MCF) dehiscence on computed tomography (CT) scans increases with age. METHODS: High-resolution temporal bone CT scans, which had been obtained for any otologic complaint, were reviewed independent of all clinical history. Scans showing soft tissue, fluid, trauma, or previous operations were excluded. The CTs from 183 patients (296 ears) were reviewed, blinded for age and body mass index (BMI)...
September 2016: Annals of Otology, Rhinology, and Laryngology
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