keyword
MENU ▼
Read by QxMD icon Read
search

temporal bone trauma

keyword
https://www.readbyqxmd.com/read/29608481/bilateral-post-traumatic-facial-paralysis-that-contains-longitudinal-and-transverse-temporal-fracture
#1
Caner Şahin, Özkan Özen
Acute bilateral post-traumatic facial paralysis is rare in the literature. Post-traumatic facial paralysis is frequently accompanied transverse fractures of temporal more. The incidence of acute bilateral post-traumatic facial paralysis has been reported as 1 to 5 per million in the literature. Trauma and concurrent facial paralysis are usually in the same subsite (right temporal bone fracture and right facial paralysis). There is one pathophysiological pattern for a single temporal bone fracture in a subsite...
March 30, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29493720/risk-of-posterior-semicircular-canal-trauma-when-using-a-retrosigmoid-approach-for-acoustic-neuroma-surgery-and-role-of-endoscopy-an-imaging-study
#2
Ali Kouhi, Varasteh Vakili Zarch, Ali Pouyan
The rate of hearing preservation after vestibular schwannoma surgery is variable and is not as high as expected, possibly due to injuries to the posterior semicircular canal while exposing the tumor. The aim of this study was to estimate the risk of posterior semicircular canal injuries using temporal bone computed tomography (CT) scan findings. Temporal bone CT scans of 30 patients selected between 2013 and 2015 were studied. The median age of the patients was 40 years. Two planes were studied: (1) the axial plane that shows the common crus of the posterior semicircular canal and (2) the coronal plane that shows the two crura of the posterior semicircular canal...
January 2018: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29435765/inflammation-mesenchymal-stem-cells-and-bone-regeneration
#3
REVIEW
Hongrui Liu, Dongfang Li, Yi Zhang, Minqi Li
Achieving satisfactory reconstruction of bone remains an important goal in orthopedic and dental conditions such as bone trauma, osteoporosis, arthritis, osteonecrosis, and periodontitis. Appropriate temporal and spatial differentiation of mesenchymal stem cells (MSCs) is essential for postnatal bone regeneration. Additionally, an acute inflammatory response is crucial at the onset of bone repair, while an adaptive immune response has important implications during late bone remodeling. Various reports have indicated bidirectional interactions between MSCs and inflammatory cells or molecules...
February 12, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29433408/blunt-injury-of-the-innominate-artery-what-surprises-to-expect-a-case-report
#4
Marina Dias-Neto, José F Ramos, José F Teixeira
Injuries of the supra-aortic trunk after blunt chest trauma are rare. This is a case report of a blunt traumatic lesion of the innominate artery (IA) origin that exhibited aortic arch involvement with a focus on imaging and treatment. A 41-year-old fisherman presented an IA injury secondary to a high-impact blunt chest trauma. Upon physical examination, vital signs were stable and upper extremity pulses were present. In addition to several bone fractures (costal ribs, clavicle, scapula, temporal, maxillary, and sphenoid), computed tomography angiography revealed dissection/pseudoaneurysm of the IA sparing the bifurcation...
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29382611/novel-variant-in-sp7-osx-associated-with-recessive-osteogenesis-imperfecta-with-bone-fragility-and-hearing-impairment
#5
Melissa Fiscaletti, Andrew Biggin, Bruce Bennetts, Karen Wong, Julie Briody, Verity Pacey, Catherine Birman, Craig F Munns
Osteogenesis imperfecta (OI) is a connective tissue disorder characterized by low bone density and recurrent fractures with a wide genotypic and phenotypic spectrum. Common features include short stature, opalescent teeth, blue sclerae and hearing impairment. The majority (>90%) of patients with OI have autosomal dominant variants in COL1A1/COL1A2, which lead to defects in type 1 collagen. More recently, numerous recessive variants involving other genes have also been identified. Sp7/Osx gene, is a protein coding gene that encodes a zinc finger transcription factor, osterix, which is a member of the Sp subfamily of sequence-specific DNA-binding proteins...
January 27, 2018: Bone
https://www.readbyqxmd.com/read/29342055/benefit-of-preoperative-temporal-bone-ct-for-atraumatic-cochlear-implantation
#6
Alexandre Karkas, Nicolas Menjot de Champfleur, Alain Uziel, Michel Mondain, Jean-Luc Puel, Frédéric Venail
HYPOTHESIS: Evaluate the benefit of preoperative surgical planning using computed tomography (CT) for atraumatic cochlear implantation. BACKGROUND: The surgical technique has a direct impact on hearing and structure preservation. Much interest has been given to depth of electrode insertion. We focused on electrode diameter depending on exposure of round window membrane (RWM) as calculated on preoperative CT. METHODS: Measurements were calculated radiologically and anatomically on 10 temporal bones...
March 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342037/preservation-of-cells-of-the-organ-of-corti-and-innervating-dendritic-processes-following-cochlear-implantation-in-the-human-an-immunohistochemical-study
#7
Takefumi Kamakura, Jennifer T O'Malley, Joseph B Nadol
HYPOTHESIS: This study evaluates the degree of preservation of hair cells, supporting cells, and innervating dendritic processes after cochlear implantation in the human using immunohistochemical methods. BACKGROUND: Surgical insertion of a cochlear implant electrode induces various pathologic changes within the cochlea including insertional trauma, foreign body response, inflammation, fibrosis, and neo-osteogenesis. These changes may result in loss of residual acoustic hearing, adversely affecting the use of hybrid implants, and may result in loss of putative precursor cells, limiting the success of future regenerative protocols...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29316290/a-3d-bioprinted-in-situ-conjugated-co-fabricated-scaffold-for-potential-bone-tissue-engineering-applications
#8
Mduduzi N Sithole, Pradeep Kumar, Lisa C du Toit, Thashree Marimuthu, Yahya E Choonara, Viness Pillay
There is a demand for progressive approaches in bone tissue engineering to repair and regenerate bone defects resulting from trauma or disease. This investigation sought to engineer a single-step in situ conjugated polymeric scaffold employing 3D printing technology as an innovative fabricating tool. A polymeric scaffold was engineered in situ employing sodium alginate as a bio-ink which interacted with a poly(ethyleneimine) solution on bioprinting to form a polyelectrolyte complex through ionic bond formation...
May 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29315178/utilization-of-nerve-integrity-monitor-for-promontory-stimulation-testing-prior-to-cochlear-implant
#9
Elizabeth A Kelly, Samuel Levine, Kristin E Gravel, Dianna L Hart, Tina Huang
OBJECTIVE: To demonstrate the feasibility of a nerve integrity monitor as a tool for promontory stimulation testing in patients with profound sensorineural hearing loss considering cochlear implantation. PATIENTS: Adult patients considered for cochlear implantation with no auditory response on audiometric testing INTERVENTION:: Promontory stimulation testing using the nerve integrity monitor. MAIN OUTCOME MEASURE: By using a facial nerve stimulator and the nerve integrity monitor, transtympanic promontory stimulation testing was performed to assess auditory nerve function and determine candidacy for cochlear implantation...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29291176/otorhinolaryngological-manifestations-in-head-trauma-a-prospective-study-of-the-epidemiology-clinical-presentations-management-and-outcomes
#10
Adeyi A Adoga, Kenneth N Ozoilo, Andrew A Iduh, Joyce G Mugu
Background: Otorhinolaryngological injuries following head trauma may be missed, overlooked, or forgotten in the acute phase resulting in worsened management outcomes. This study aims to report the epidemiology, clinical presentations, management, and outcomes of otorhinolaryngological injuries in head trauma with a view to creating awareness for early recognition and prompt treatment. Patients and Methods: Head injured patients consecutively presenting over a 5-year period were prospectively studied for age, gender, otorhinolaryngological presentations, interventions, and outcome of interventions...
October 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/29283104/repair-of-tegmen-tympani-defect-presenting-with-spontaneous-cerebrospinal-fluid-otorrhea-using-the-middle-cranial-fossa-approach
#11
Said Sönmez, Bayram Şahin, Beldan Polat, Şenol Çomoğlu, Kadir Serkan Orhan
Spontaneous cerebrospinal fluid (CSF) otorrhea frequently occurs without temporal bone trauma, fracture, surgery, or any identifiable causes. It is usually associated with tegmen tympani defects of the temporal bone in adults. The congenital origin theory and the arachnoid granulation theory have been accepted to explain the tegmen tympani defect. Magnetic resonance imaging (MRI) and computed tomography (CT) are used to show the defects, brain tissue, and the meninges. We recently encountered three cases of spontaneous CSF otorrhea with a defect on the tegmental plate of the temporal bone...
December 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29282438/management-of-unruptured-traumatic-middle-meningeal-artery-pseudoaneurysms-through-onyx-embolization
#12
Nicolas K Khattar, Andrew C White, Enzo M Fortuny, Rob T Hruska, Robert F James
Traumatic pseudoaneurysms of the middle meningeal artery (MMA) represent less than 1% of all intracranial aneurysms, and occur mostly in association with temporal bone fractures following head trauma. Given the unknown natural history, it is unclear whether they should be treated. We present two cases of MMA pseudoaneurysms discovered during trauma workups. The first patient is a 44-year-old male with severe traumatic brain injury (TBI) following a motor vehicle accident. The patient was found to have two right-sided middle meningeal artery pseudoaneurysms that were treated successfully with Onyx® (Medtronic, Minneapolis, MN) embolization...
October 23, 2017: Curēus
https://www.readbyqxmd.com/read/29240567/theoretical-evaluation-and-experimental-validation-of-localized-therapeutic-hypothermia-application-to-preserve-residual-hearing-after-cochlear-implantation
#13
Ilmar Tamames, Curtis King, Chin-Yuh Huang, Fred F Telischi, Michael E Hoffer, Suhrud M Rajguru
OBJECTIVES: Cochlear implantation surgery has been shown to result in trauma to inner ear sensory structures, resulting in loss of residual hearing. Localized therapeutic hypothermia has been shown in clinical care to be a neuroprotective intervention. Previously, we have shown in an experimental model that localized hypothermia protects cochlear hair cells and residual hearing function against surgical and cochlear implantation trauma. Using experimental temperature measurements carried out in human cadaver temporal bones and a finite element model of the inner ear, the present study examined the temperature distribution of a custom-designed hypothermia delivery system in the human inner ear organs...
December 13, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29194857/computed-tomographic-characteristics-of-pneumolabyrinth-in-a-french-bulldog-with-otitis-media-and-externa
#14
Audrey Belmudes, Jérôme Couturier, Guillaume Gory, Eddy Cauvin, Guillaume Condamin, Michael Rabillard, Delphine Rault
A four-year-old female French bulldog was presented for evaluation of acute, left-sided peripheral vestibular syndrome. Computed tomographic (CT) examination of the head revealed the presence of air within the left cochlea and vestibule, consistent with pneumolabyrinth. This was concurrent with ipsilateral otitis media and externa. Pneumolabyrinth is an uncommon finding in humans and is most frequently due to head trauma and temporal bone fracture. This is the first report describing pneumolabyrinth in a dog, apparently of nontraumatic origin in this case...
December 1, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29194215/cochlear-implant-insertion-axis-into-the-basal-turn-a-critical-factor-in-electrode-array-translocation
#15
Renato Torres, Mylène Drouillard, Daniele De Seta, Jean-Loup Bensimon, Evelyne Ferrary, Olivier Sterkers, Daniele Bernardeschi, Yann Nguyen
HYPOTHESIS: An inappropriate insertion axis leads to intracochlear trauma during cochlear implantation (CI). BACKGROUND: Few studies assessed the relationship between the insertion axis and the electrode scalar location. METHODS: Preimplantation cone-beam CT (CBCT) was performed on 12 human temporal bones. In five temporal bones, an optimal insertion axis was planned, due to the impossibility to attain the ST centerline from the posterior tympanotomy, because of facial canal position...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29180997/inherent-x-linked-genetic-variability-and-cellular-mosaicism-unique-to-females-contribute-to-sex-related-differences-in-the-innate-immune-response
#16
Zoltan Spolarics, Geber Peña, Yong Qin, Robert J Donnelly, David H Livingston
Females have a longer lifespan and better general health than males. Considerable number of studies also demonstrated that, after trauma and sepsis, females present better outcomes as compared to males indicating sex-related differences in the innate immune response. The current notion is that differences in the immuno-modulatory effects of sex hormones are the underlying causative mechanism. However, the field remains controversial and the exclusive role of sex hormones has been challenged. Here, we propose that polymorphic X-linked immune competent genes, which are abundant in the population are important players in sex-based immuno-modulation and play a key role in causing sex-related outcome differences following trauma or sepsis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29142872/isolated-tympanic-plate-fracture-detected-by-cone-beam-computed-tomography-report-of-four-cases-with-review-of-literature
#17
Ashita Ritesh Kalaskar, Ritesh Kalaskar
The tympanic plate is a small part of the temporal bone that separates the mandibular condyle from the external auditory canal. Fracture of this small plate is rare and usually associated with other bony fractures, mainly temporal and mandibular bone. There is a limited amount of literature on this subject, which increases the chance of cases being overlooked by physicians and radiologists. This is further supported by purely isolated cases of tympanic plate fracture without evidence of other bony fractures...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29134161/pneumatization-patterns-of-the-petrous-apex-and-lateral-sphenoid-recess
#18
Alexander Malone, Margherita Bruni, Robert Wong, Mark Tabor, K Paul Boyev
Introduction  The petrous apex poses a challenge for surgical intervention due to poor access. As intraoperative image guidance and surgical instrumentation improve, newer endoscopic approaches are increasingly favored. This study aims to provide normative data on the anatomy of the lateral sphenoid sinus recess and petrous apex. These normative data could assist in determining the efficacy of a transnasal transsphenoidal approach to lesions of the anteroinferior petrous apex. Methods  This is a retrospective study investigating normative data on all maxillofacial computed tomography (CT) scans performed at a level I trauma center over a 6-month period...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29129760/the-key-role-of-proinflammatory-cytokines-matrix-proteins-rankl-opg-and-wnt-%C3%AE-catenin-in-bone-healing-of-hip-arthroplasty-patients
#19
Jean Cassuto, Agnetha Folestad, Jan Göthlin, Henrik Malchau, Johan Kärrholm
INTRODUCTION: We still lack understanding of why some implants fail while most remain stable after decades of use. Proinflammatory cytokines, matrix proteins and bone regulating cytokines of the RANKL/OPG (receptor activator of nuclear factor kappa B ligand/osteoprotegerin) and Wnt/β-catenin pathways are mandatory for normal bone repair but their spatial and temporal role in the healing of primary total hip arthroplasties (THA) has not been previously shown. MATERIALS AND METHODS: Twenty-four osteoarthritis patients with one-sided well-fixed primary THA were prospectively monitored during 18years (18Y) with repeated blood samples, clinical variables and radiographs...
February 2018: Bone
https://www.readbyqxmd.com/read/29121383/a-novel-etiology-for-pneumolabyrinth-after-temporal-bone-fracture-without-otic-capsule-involvement
#20
Thomas J Muelleman, Vidur Bhalla, Hinrich Staecker
Pneumolabyrinth has been considered an indicator of otic capsule involvement in temporal bone fractures. We present a novel theory for the etiology of pneumolabyrinth in a trauma patient without an otic capsule fracture: passage of intrathecal air into the labyrinth. Our patient experienced transient bilateral pneumolabyrinth after head trauma due to a motor vehicle collision. The patient was noted to have extensive pneumocephalus and a unilateral temporal bone fracture that spared the otic capsule. Initial computed tomography (CT) scans demonstrated air in the cochlea and both internal auditory canals...
October 2017: Ear, Nose, & Throat Journal
keyword
keyword
52896
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"