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Auditory head injury

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https://www.readbyqxmd.com/read/29521731/paroxysmal-sympathetic-hyperactivity-and-environmental-factors-a-pilot-study
#1
Lisa Letzkus, Nancy Addison, Lauren Turner, Mark Conaway, Beth Quatrara
PROBLEM: Paroxysmal sympathetic hyperactivity (PSH) is a complicated phenomenon that presents as autonomic instability and muscle overactivity in individuals who experience severe brain injury. Identifying potential modifiable environmental nociceptive stimuli is necessary for developing interventions that impact clinical outcomes. OBJECTIVE: The aim of this study was to identify physical environmental nociceptive stimuli that could hinder recovery for children who experience PSH after severe brain injury...
April 2018: Journal of Neuroscience Nursing: Journal of the American Association of Neuroscience Nurses
https://www.readbyqxmd.com/read/29450484/neurological-manifestations-among-us-government-personnel-reporting-directional-audible-and-sensory-phenomena-in-havana-cuba
#2
Randel L Swanson, Stephen Hampton, Judith Green-McKenzie, Ramon Diaz-Arrastia, M Sean Grady, Ragini Verma, Rosette Biester, Diana Duda, Ronald L Wolf, Douglas H Smith
Importance: From late 2016 through August 2017, US government personnel serving on diplomatic assignment in Havana, Cuba, reported neurological symptoms associated with exposure to auditory and sensory phenomena. Objective: To describe the neurological manifestations that followed exposure to an unknown energy source associated with auditory and sensory phenomena. Design, Setting, and Participants: Preliminary results from a retrospective case series of US government personnel in Havana, Cuba...
March 20, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29287039/effect-of-blast-injury-on-auditory-localization-in-military-service-members
#3
Lina R Kubli, Douglas Brungart, Jerry Northern
OBJECTIVES: Among the many advantages of binaural hearing are the abilities to localize sounds in space and to attend to one sound in the presence of many sounds. Binaural hearing provides benefits for all listeners, but it may be especially critical for military personnel who must maintain situational awareness in complex tactical environments with multiple speech and noise sources. There is concern that Military Service Members who have been exposed to one or more high-intensity blasts during their tour of duty may have difficulty with binaural and spatial ability due to degradation in auditory and cognitive processes...
December 27, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29230542/secondary-intracranial-hypertension-pseudotumor-cerebri-presenting-as-post-traumatic-headache-in-mild-traumatic-brain-injury-a-case-series
#4
Tonia Sabo, Charlene Supnet, Sushmita Purkayastha
BACKGROUND: Cerebral edema peaks 36-72 h after moderate traumatic brain injury but thought to be uncommon after mild traumatic brain injury. Post-traumatic headache can develop 48-72 h post-injury, perhaps reflecting the developing cerebral edema. Pseudotumor cerebri can result from various causes, including cerebral edema, and is characterized by increased intracranial pressure, headache, visual, and other common symptoms. Our objective was to report a phenotypically identifiable post-traumatic headache subtype...
April 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28981349/hearing-complaints-among-veterans-following-traumatic-brain-injury
#5
Frederick J Gallun, Melissa A Papesh, M Samantha Lewis
It has been shown that there is an increased risk for impaired auditory function following traumatic brain injury (TBI) in Veterans. Evidence is strongest in the area of self-report, but behavioural and electrophysiological data have been obtained that are consistent with these complaints. Peripheral and central dysfunction have both been observed. Historically, studies have focused on penetrating head injuries where central injury is more easily documented than in mild closed head injuries, but several recent reports have expanded the literature to include closed head injuries as well...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28818271/the-vestibulocochlear-bases-for-wartime-posttraumatic-stress-disorder-manifestations
#6
T A Tigno, R A Armonda, R S Bell, M A Severson
Preliminary findings based on earlier retrospective studies of 229 wartime head injuries managed by the Walter Reed Army Medical Center (WRAMC)/National Naval Medical Center (NNMC) Neurosurgery Service during the period 2003-08 detected a threefold rise in Posttraumatic Stress Disorder (PTSD) manifestations (10.45%) among Traumatic Brain Injuries (TBI) having concomitant vestibulocochlear injuries compared to 3% for the TBI group without vestibulo-cochlear damage (VCD), prompting the authors to undertake a more focused study of the vestibulo-auditory pathway in explaining the development of posttraumatic stress disorder manifestations among the mostly Blast-exposed head-injured...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28709915/sex-differences-in-somatic-and-sensory-motor-development-after-neonatal-anoxia-in-wistar-rats
#7
Amrita Jha Kumar, Silvia Honda Takada, Lívia Clemente Motta-Teixeira, Vitor Yonamine Lee, Gilberto Fernando Xavier, Maria Inês Nogueira
Currently, one of the important causes of brain injury in new-borns is the neonatal anoxia which impacts the perinatology services worldwide. Animal models of anoxia have been used to assess its effects at cellular and behavioural levels in all ages, but few studies focus on sex differences. This study aimed to investigate some physical parameters of development, sensorimotor alterations, early neurological reflexes as well as the density of cells in motor and sensorimotor cerebral cortex of adolescent rats submitted to neonatal anoxia...
July 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28570420/semicircular-canal-pressure-changes-during-high-intensity-acoustic-stimulation
#8
Anne K Maxwell, Renee M Banakis Hartl, Nathaniel T Greene, Victor Benichoux, Jameson K Mattingly, Stephen P Cass, Daniel J Tollin
HYPOTHESIS: Acoustic stimulation generates measurable sound pressure levels in the semicircular canals. BACKGROUND: High-intensity acoustic stimuli can cause hearing loss and balance disruptions. To examine the propagation of acoustic stimuli to the vestibular end-organs, we simultaneously measured fluid pressure in the cochlea and semicircular canals during both air- and bone-conducted sound presentation. METHODS: Five full-cephalic human cadaveric heads were prepared bilaterally with a mastoidectomy and extended facial recess...
August 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28319479/brainstem-evoked-potential-indices-of-subcortical-auditory-processing-after-mild-traumatic-brain-injury
#9
Kathy R Vander Werff, Brian Rieger
OBJECTIVES: The primary aim of this study was to assess subcortical auditory processing in individuals with chronic symptoms after mild traumatic brain injury (mTBI) by measuring auditory brainstem responses (ABRs) to standard click and complex speech stimuli. Consistent with reports in the literature of auditory problems after mTBI (despite normal-hearing thresholds), it was hypothesized that individuals with mTBI would have evidence of impaired neural encoding in the auditory brainstem compared to noninjured controls, as evidenced by delayed latencies and reduced amplitudes of ABR components...
July 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28077670/the-mammalian-efferent-vestibular-system-plays-a-crucial-role-in-vestibulo-ocular-reflex-compensation-after-unilateral-labyrinthectomy
#10
Patrick P Hübner, Serajul I Khan, Americo A Migliaccio
The α9-nicotinic acetylcholine receptor (α9-nAChR) subunit is expressed in the vestibular and auditory periphery, and its loss of function could compromise peripheral input from the predominantly cholinergic efferent vestibular system (EVS). A recent study has shown that α9-nAChRs play an important role in short-term vestibulo-ocular reflex (VOR) adaptation. We hypothesize that α9-nAChRs could also be important for other forms of vestibular plasticity, such as that needed for VOR recovery after vestibular organ injury...
April 1, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27997448/the-retroauricular-approach-to-the-facial-nerve-trunk
#11
Jordan W Swanson, Jason W Yu, Jesse A Taylor, Stephen Kovach, Suhail Kanchwala, Laurent Lantieri
BACKGROUND: Exposure of the common trunk of the facial nerve has traditionally been approached based on principles of parotidectomy, which is associated with high rates of facial nerve palsy and landmarks that may be unreliable. On the basis of experience gained with vascularized composite allotransplantation of the face, the authors propose a retroauricular approach that may be more time-effective and safe. METHODS: In the proposed retroauricular facial nerve approach, an incision is made posterior to the ear in the retroauricular sulcus, and dissection proceeds anteriorly to the mastoid fascia to the base of the conchal bowl...
March 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27941576/sedation-of-patients-with-disorders-of-consciousness-during-neuroimaging-effects-on-resting-state-functional-brain-connectivity
#12
Muriëlle Kirsch, Pieter Guldenmund, Mohamed Ali Bahri, Athena Demertzi, Katherine Baquero, Lizette Heine, Vanessa Charland-Verville, Audrey Vanhaudenhuyse, Marie-Aurélie Bruno, Olivia Gosseries, Carol Di Perri, Erik Ziegler, Jean-François Brichant, Andrea Soddu, Vincent Bonhomme, Steven Laureys
BACKGROUND: To reduce head movement during resting state functional magnetic resonance imaging, post-coma patients with disorders of consciousness (DOC) are frequently sedated with propofol. However, little is known about the effects of this sedation on the brain connectivity patterns in the damaged brain essential for differential diagnosis. In this study, we aimed to assess these effects. METHODS: Using resting state functional magnetic resonance imaging 3T data obtained over several years of scanning patients for diagnostic and research purposes, we employed a seed-based approach to examine resting state connectivity in higher-order (default mode, bilateral external control, and salience) and lower-order (auditory, sensorimotor, and visual) resting state networks and connectivity with the thalamus, in 20 healthy unsedated controls, 8 unsedated patients with DOC, and 8 patients with DOC sedated with propofol...
February 2017: Anesthesia and Analgesia
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
#13
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/m2 once weekly for 6 weeks...
December 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27662558/external-auditory-canal-stenosis-after-traumatic-auricular-amputation
#14
Justin E R E Wong Chung, Desderius C Chussi, Niels van Heerbeek
BACKGROUND: The auricles are easily injured or amputated in case of head trauma. Inadequate treatment of the external auditory canal (EAC) after auricular injury is often seen and can lead to significant complications of the EAC. CASE REPORT: The authors report 4 cases of auricular injury or amputations. In all patients inadequate first treatment led to stenosis of the EAC. Three patients required recanalization of the EAC because of hearing loss and the risk of further complications...
January 2017: Journal of Craniofacial Surgery
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
#15
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/27586115/neck-forces-and-moments-of-human-volunteers-and-post-mortem-human-surrogates-in-low-speed-frontal-sled-tests
#16
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/27387791/temporal-bone-fracture-evaluation-in-the-era-of-modern-computed-tomography
#17
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/27221725/-benefits-of-otoscopy-in-forensic-autopsy-practice-a%C3%A2-prospective-study
#18
Štěpánka Kučerová, Petr Hejna, Martin Dobiáš
The otoscopy is an examination of the external auditory canal, the eardrum, and the middle ear with an instrument called an otoscope. It is a simple, inexpensive, and time-saving endoscopic method typically used by general practitioners and otorhinolaryngologists. Authors present a prospective study of otoscopic findings investigated consecutively at autopsy. Of the 250 examined persons, 50 positive findings were identified: 38 cases with petechial hemorrhages and 12 cases with tympanic membrane perforation or hemotympanon...
2016: Soudní Lékarství
https://www.readbyqxmd.com/read/27121862/behavioural-improvement-in-a-minimally-conscious-state-after-caloric-vestibular-stimulation-evidence-from-two-single-case-studies
#19
Serena Vanzan, David Wilkinson, Heather Ferguson, Patrick Pullicino, Mohamed Sakel
OBJECTIVE: To investigate whether caloric vestibular stimulation, a non-invasive form of neuro-modulation, alters the level of awareness in people residing in a minimally conscious state. DESIGN: Single-case ( n = 2), prospective, controlled (ABAB) efficacy study. SETTING: Tertiary, neuro-rehabilitation inpatient ward within a university hospital. PARTICIPANTS: Two individuals in a minimally conscious state. INTERVENTION: Left ear caloric vestibular stimulation was performed in two four/five-week blocks interleaved with two four/five-week blocks of sham stimulation...
April 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/26932951/endoscopic-transcanal-retrocochlear-approach-to-the-internal-auditory-canal-with-cochlear-preservation-pilot-cadaveric-study
#20
Judith Kempfle, Elliott D Kozin, Aaron K Remenschneider, Andreas Eckhard, Albert Edge, Daniel J Lee
Contemporary operative approaches to the internal auditory canal (IAC) require the creation of large surgical portals for visualization with associated morbidity, including hearing loss, vestibular dysfunction, facial nerve injury, and skull base defects that increase the risk of cerebrospinal fluid leak. Transcanal approaches to the IAC have been possible only via a transcochlear technique. To preserve cochlear function, we describe a novel endoscopic transcanal infracochlear approach to the IAC in cadaveric temporal bones...
May 2016: Otolaryngology—Head and Neck Surgery
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