keyword
MENU ▼
Read by QxMD icon Read
search

Cranial

keyword
https://www.readbyqxmd.com/read/29140981/wavelet-brain-angiography-suggests-arteriovenous-pulse-wave-phase-locking
#1
William E Butler
When a stroke volume of arterial blood arrives to the brain, the total blood volume in the bony cranium must remain constant as the proportions of arterial and venous blood vary, and by the end of the cardiac cycle an equivalent volume of venous blood must have been ejected. I hypothesize the brain to support this process by an extraluminally mediated exchange of information between its arterial and venous circulations. To test this I introduce wavelet angiography methods to resolve single moving vascular pulse waves (PWs) in the brain while simultaneously measuring brain pulse motion...
2017: PloS One
https://www.readbyqxmd.com/read/29140904/reconstruction-of-microtias-with-constricted-ear-features-a-22-year-experience
#2
Chul Park, Jung Youl Park
BACKGROUND: The surgical correction of 'microtias with constricted ear features' has remained a challenge due to the variable shape and large volume of the remnant cartilage and skin involved. In order to clarify how this remnant cartilage and skin should be treated, we have reviewed and analyzed cases operated at our Center. METHODS: A total of 167 cases of Microtia with Constricted Ear Features, operated from 1992 to 2014, were included in the study. They were reviewed through medical records and photographs, analysis of surgical methods, and postoperative outcomes...
November 11, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29140246/an-eya1-notch-axis-specifies-bipotential-epibranchial-differentiation-in-mammalian-craniofacial-morphogenesis
#3
Haoran Zhang, Li Wang, Elaine Yee Man Wong, Sze Lan Tsang, Pin-Xian Xu, Urban Lendahl, Mai Har Sham
Craniofacial morphogenesis requires proper development of pharyngeal arches and epibranchial placodes. We show that the epibranchial placodes, in addition to giving rise to cranial sensory neurons, generate a novel lineage-related non-neuronal cell population for mouse pharyngeal arch development. Eya1 is essential for the development of epibranchial placodes and proximal pharyngeal arches. We identify an Eya1-Notch regulatory axis that specifies both the neuronal and non-neuronal commitment of the epibranchial placode, where Notch acts downstream of Eya1 and promotes the non-neuronal cell fate...
November 15, 2017: ELife
https://www.readbyqxmd.com/read/29139535/contribution-of-cranial-neural-crest-cells-to-mouse-skull-development
#4
Taofen Wu, Guiqian Chen, Fei Tian, Hong-Xiang Liu
The mammalian skull vault is a highly regulated structure that evolutionally protects brain growth during vertebrate development. It consists of several membrane bones with different tissue origins (e.g. neural crest-derived frontal bone and mesoderm-derived parietal bone). Although membrane bones are formed through intramembranous ossification, the neural crest-derived frontal bone has superior capabilities for osteoblast activities and bone regeneration via TGF, BMP, Wnt, and FGF signaling pathways. Neural crest (NC) cells are multipotent, and once induced, will follow specific paths to migrate to different locations of the body where they give rise to a diverse array of cell types and tissues...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/29139157/seronegative-granulomatosis-with-polyangiitis-presenting-with-multiple-cranial-nerve-palsies
#5
Eunhye Lee, Jynkyun Park, Seung Hong Choi, Sung-Hye Park
Granulomatosis with polyangiitis (GPA), previously known as Wegener's granulomatosis (WG), is a rare systemic disease characterized by necrotizing granulomas and vasculitis that usually presents in the respiratory tract and renal system. Here, we report a case of anti-neutrophil cytoplasmic antibody (ANCA)-negative GPA with diagnostic difficulties. Neurologic involvement in GPA is not uncommon, with up to 50% of patients manifesting with neurologic defects; however, it is usually a late event. This patient was a 50-year-old man whose first manifestation was multiple neurologic defects without respiratory or renal symptoms...
November 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29139152/giant-intracranial-arteriovenous-malformation-as-the-focus-of-epileptic-seizures
#6
Mio Takayama, Kenji Hara, Aya Matsusue, Brian Waters, Natsuki Ikematsu, Masayuki Kashiwagi, Shin-Ichi Kubo
A man in his late thirties was found in a supine position in the hallway of his house. He had been diagnosed with epilepsy at approximately 20 years old. Since stopping treatment, epileptic events occurred more frequently and his condition deteriorated in the past 2 years. Autopsy revealed that head injuries were found on the left side of his head. A fracture from the left parietal bone to the anterior cranial fossa was also detected. A subdural hemorrhage (hematoma) spanned a wide range. A subarachnoid hemorrhage was also identified in the left parietal region...
November 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29139133/cranial-shape-variation-in-jacarean-caimanines-crocodylia-alligatoroidea-and-its-implications-in-the-taxonomic-status-of-extinct-species-the-case-of-melanosuchus-fisheri
#7
Christian Foth, María Victoria Fernandez Blanco, Paula Bona, Torsten M Scheyer
Melanosuchus niger (Crocodylia, Alligatoroidea) is one of the six living caimanine species widely distributed throughout the Amazon River basin today. Although there is only one extant species of Melanosuchus, fossil material assigned to this genus, represented by M. fisheri, has been reported from the late Miocene in South America. However, the validity of this taxon has been questioned and a recent investigation indicates that the referred specimen of M. fisheri (MCZ 4336) actually belongs to Globidentosuchus brachyrostris, while those diagnostic characters present in the holotype (MCNC 243) fall into the spectrum of intraspecific variation of M...
November 15, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29137049/garcin-syndrome-caused-by-parotid-gland-adenoid-cystic-carcinoma-a-case-report
#8
Nian-Ge Xia, Yan-Yan Chen, Xin-Shi Wang, Hui-Qin Xu, Rong-Yuan Zheng
RATIONALE: Garcin syndrome is characterized by the gradual involvement, and ultimately, unilateral paralysis of at least 7 and sometimes all cranial nerves, without intracranial hypertension or any long tract signs. PATIENT CONCERNS: We report the case of a 59-year-old woman who presented with Garcin syndrome, which gradually progressed over a period of 2 years. DIAGNOSIS: A left parotid gland biopsy revealed parotid gland adenoid cystic carcinoma (PGACC) with perineural invasion of a peripheral nerve bundle and lymph node metastasis...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29135869/usefulness-of-high-resolution-3d-multi-sequences-for-peripheral-facial-palsy-differentiation-between-bell-s-palsy-and-ramsay-hunt-syndrome
#9
Junko Kuya, Keita Kuya, Yuki Shinohara, Yasuomi Kunimoto, Hiroaki Yazama, Toshihide Ogawa, Hiromi Takeuchi
OBJECTIVE: To investigate the usefulness of magnetic resonance imaging (MRI) including three-dimensional (3D) sequences in the differentiation between Bell's palsy (BP) and Ramsay Hunt syndrome (RHS). STUDY DESIGN: A prospective study. SETTING: Tertiary care center. PATIENTS: Twenty patients: 15 patients with BP and five patients with RHS. INTERVENTION: Diagnostic. MAIN OUTCOME MEASURE: Clinical diagnosis (BP or RHS)...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29135814/neuro-ophthalmology-at-a-tertiary-eye-care-centre-in-india
#10
Rebika Dhiman, Digvijay Singh, Shiva P Gantayala, Vaitheeswaran L Ganesan, Pradeep Sharma, Rohit Saxena
BACKGROUND: Neuro-ophthalmology as a specialty is underdeveloped in India. The aim of our study was to determine the spectrum and profile of patients presenting to a tertiary eye care center with neuro-ophthalmic disorders. METHODS: A retrospective hospital-based study was conducted, and records of all patients seen at the neuro-ophthalmology clinic of Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India, over a 1-year period were retrieved and evaluated...
November 9, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29135804/surgical-management-of-tumors-involving-meckel-s-cave-and-cavernous-sinus-role-of-an-extended-middle-fossa-and-lateral-sphenoidectomy-approach
#11
Daniel Q Sun, Arnold H Menezes, Matthew A Howard, Bruce J Gantz, David M Hasan, Marlan R Hansen
OBJECTIVE: To study the indications and outcomes of lateral sphenoidectomy as part of a combined skull base approach in the treatment of tumors involving Meckel's cave (MC) and cavernous sinus (CS). STUDY DESIGN: Retrospective patient series. SETTING: Tertiary referral center. PATIENTS: Twenty-two consecutive patients (mean age: 45 yr, range: 16-76) who underwent transzygomatic, extended middle fossa approaches for tumors involving MC and CS...
November 13, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29135727/comparative-cost-analysis-of-single-and-mutli-stage-temporal-deformity-correction-following-neurosurgical-procedures
#12
Anthony Asemota, Gabriel F Santiago, Susan Zhong, Chad R Gordon
PURPOSE: Temporal hollowing deformity (THD) is a visible concavity/convexity in the temporal fossa; a complication often seen following neurosurgical/craniofacial procedures. Although numerous techniques have been described, no study to date has shown the healthcare costs associated with temporal hollowing correction surgery. Thus, the purpose here is to compare and contrast the direct costs related to temporal cranioplasty using various methods including: liquid poly-methyl-methacrylate (PMMA) implants with screw fixation, prebent, modified titanium mesh implants, and customized cranial implants (CCIs) with dual-purpose design...
November 9, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29135700/safety-outcomes-following-spine-and-cranial-neurosurgery-evidence-from-the-national-surgical-quality-improvement-program
#13
Andrew K Rock, Charles F Opalak, Kathryn G Workman, William C Broaddus
BACKGROUND: The American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) was used to establish predictors for 30-day postoperative complications following spine and cranial neurosurgery. MATERIALS AND METHODS: The ACS-NSQIP participant use files were queried for neurosurgical cases between 2005 and 2015. Prevalence of postoperative complications following neurosurgery was determined. Nested multivariable logistic regression analysis was used to identify demographic, comorbidity, and perioperative characteristics associated with any complication and mortality for spine and cranial surgery...
November 10, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/29135313/third-cranial-nerve-palsy-after-a-chikungunya-virus-infection
#14
Ana Luiza Fontes de Azevedo Costa, Thiago Gonçalves Dos Santos Martins, Diogo Gonçalves Dos Santos Martins
Chikungunya fever is a disease caused by a virus from the same family as dengue and Zika. It is endemic in several parts of the world and has recently spread to Latin America. We report the case of a patient, aged 58 years, from Rio de Janeiro, Brazil, who in 2013 developed an acute bilateral third cranial nerve palsy sparing the pupil. After extensive investigation, it was diagnosed as caused by chikungunya infection. The patient was treated with pulse therapy and after 5 months of the onset of the condition, the patient showed improvement...
November 14, 2017: Strabismus
https://www.readbyqxmd.com/read/29135041/risk-factors-for-tibial-damage-associated-with-the-modified-maquet-technique-in-174-stifles
#15
Michael D Lefebvre, Olivier R Broux, Nicolas P Barthélémy, Martin Hamon, Evelyne V Moyse, Bernard M Bouvy, Marc H Balligand
OBJECTIVE: To identify risk factors for tibial damage associated with the modified Maquet technique (MMT) in dogs with cranial cruciate ligament (CCL) disease. STUDY DESIGN: Retrospective study. SAMPLE POPULATION: One hundred and seventy-four stifles from 147 client-owned dogs. METHODS: Medical records of dogs diagnosed with CCL disease and treated with the current version of MMT were reviewed. Dogs were included if immediate postoperative radiographs were available...
November 14, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29134167/postoperative-imaging-findings-associated-with-transpalpebral-craniotomy-approach-to-anterior-cranial-fossa
#16
Dennis Monks, Allison Weyer, Peter Thurlow, Khaled Aziz, Erik Happ, Michael Goldberg
Background and Purpose  The transpalpebral "eyelid" approach is a novel alternative to the traditional ciliary or supraciliary incision for supraorbital frontal craniotomy and access to the anterior cranial fossa. Though a prior publication from our institution has described the surgical approach in detail along with cosmetic and clinical outcomes, postoperative imaging findings have not yet been described. As this surgical technique becomes more widely practiced, it is essential for neuroradiologists, oculoplastic surgeons, and skull base neurosurgeons to be familiar with the expected postoperative imaging findings, especially those that prompt subsequent intervention...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29134162/lesions-mimicking-small-vestibular-schwannomas
#17
Matthias Scheich, Rudolf Hagen, Desiree Ehrmann-Müller, Brigitte Bison, Thomas Günthner-Lengsfeld, Camelia-Maria Monoranu, Hans-Ullrich Völker
Objective  Most tumors of the internal auditory canal and cerebellopontine angle (CPA) are vestibular schwannomas (VSs). Preoperative diagnosis is based on typical clinical symptoms and radiological findings. In rare cases, histopathology can, however, show different results. Design  This is a retrospective chart and database review. Setting  The study was conducted at a tertiary skull base referral center at a university hospital. Participants  A total of 207 consecutive cases of VS surgery via the middle cranial fossa approach performed between December 2005 and January 2015 were reviewed...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29133710/role-of-preoperative-imaging-in-the-diagnosis-of-primary-diffuse-craniospinal-leptomeningeal-gliomatosis
#18
Jayant Vishal, Rana Patir, Sunita Ahlawat, Rakesh K Gupta
We present an unusual case of primary diffuse craniospinal leptomeningeal gliomatosis (PGDL), who was initially diagnosed on the basis of imaging, laboratory findings, and cranial meningeal biopsy as tuberculous meningitis and showed clinical deterioration while on anti-tuberculous treatment for 2 months. The patient was subsequently correctly diagnosed on diffusion weighted and post-contrast T1-weighted imaging of the craniospinal axis along with whole body imaging. The radiological findings were confirmed on histopathology and immunohistochemistry performed from the previous block as well as biopsy from the nodular mass in the lumbosacral meninges...
November 2017: Neurology India
https://www.readbyqxmd.com/read/29133321/can-physical-assessment-techniques-aid-diagnosis-in-people-with-chronic-fatigue-syndrome-myalgic-encephalomyelitis-a-diagnostic-accuracy-study
#19
Lucy Hives, Alice Bradley, Jim Richards, Chris Sutton, James Selfe, Bhaskar Basu, Kerry Maguire, Gail Sumner, Tarek Gaber, Annice Mukherjee, Raymond N Perrin
OBJECTIVE: To assess five physical signs to see whether they can assist in the screening of patients with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) and potentially lead to quicker treatment. METHODS: This was a diagnostic accuracy study with inter-rater agreement assessment. Participants recruited from two National Health Service hospitals, local CFS/ME support groups and the community were examined by three practitioners on the same day in a randomised order...
November 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/29132165/ivh-in-vlbw-preterm-babies-therapy-with-recombinant-activated-f-vii
#20
Matthias Knüpfer, Jenny Ritter, Ferdinand Pulzer, Corinna Gebauer, Nadine Wolf, Anett Bläser, Jens Dreyhaupt, Ulrich Thome
Backround Intraventricular hemorrhage (IVH) remains a dangerous and frequent complication in very low birth weight (VLBW) infants. Activated factor VII (aFVII) activates the coagulation cascade and is a potential tool for stopping active bleeding, including limiting the extent of an IVH. This retrospective treatment observation compared data for infants with IVH progression treated with fresh frozen plasma (FFP) alone or with a combination of FFP and aFVII. Methods/Intervention All infants were subject to cranial ultrasonography at least twice daily...
November 2017: Klinische Pädiatrie
keyword
keyword
71904
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"