keyword
MENU ▼
Read by QxMD icon Read
search

Base of skull

keyword
https://www.readbyqxmd.com/read/28231373/auricular-complications-in-parotid-temporal-bone-infratemporal-fossa-and-lateral-skull-base-surgery
#1
Patrick S Carpenter, Ryan C Burgette, John P Leonetti, Sam J Marzo
Neoplasms located in the parotid region, temporal bone, infratemporal fossa, and lateral skull base represent a challenge due to their difficult anatomic location and surrounding neurovascular structures. A variety of surgical approaches are appropriate to access this area, although several of them can place the auricular blood supply in danger. If the auricular blood supply is compromised, ischemia and, eventually, avascular necrosis of the auricle can occur. Auricular necrosis often can cause patients a delay in adjuvant radiation therapy and result in the need for additional reconstructive procedures...
February 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28230588/how-to-expose-the-entire-sella-floor-with-minimal-manipulation-during-an-endoscopic-endonasal-transsphenoidal-approach
#2
Do Hyun Kim, Yong-Kil Hong, Sin-Soo Jeun, Yong Jin Park, Soo Whan Kim, Jin Hee Cho, Boo-Young Kim, Sung Won Kim
OBJECTIVE: A method of opening the posterior ethmoid air cells with minimal manipulation is important for adequate exposure of the sella floor and minimal nasal morbidity. METHODS: Between February 2009 and August 2016, 373 patients with skull-base tumors underwent surgery via endoscopic endonasal transsphenoidal approach with the 2-nostrils/4-hands technique using this technique. RESULTS: A linear incision was made laterally toward one-third of the superior turbinate along the superior border of the sphenoid sinus ostium...
February 22, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28230246/functional-and-evolutionary-consequences-of-cranial-fenestration-in-birds
#3
Sander W S Gussekloo, Michael A Berthaume, Daniel R Pulaski, Irene Westbroek, Jan H Waarsing, Robin Heinen, Ian R Grosse, Elizabeth R Dumont
Ostrich-like birds (Palaeognathae) show very little taxonomic diversity while their sister taxon (Neognathae) contains roughly 10000 species. The main anatomical differences between the two taxa are in the crania. Palaeognaths lack an element in the bill called the lateral bar that is present in both ancestral theropods and modern neognaths, have thin zones in the bones of the bill, and robust bony elements on the ventral surface of their crania. Here we use a combination of modelling and developmental experiments to investigate the processes that might have led to these differences...
February 23, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28229440/-asymptomatic-skull-base-metastases-clinical-course-and-therapeutic-alternatives
#4
A Vargas, C Paulazo, L Oleaga, E Verger
INTRODUCTION: Skull base metastases (SBM) are an infrequent and late type of cancer progression that are associated to poor prognosis. Its clinical manifestations may be grouped in five clinical syndromes and radiotherapy is its more frequent treatment. Because of the improvement in imaging tests and the close follow up of cancer patients, SBM can be diagnosed incidentally. In this group the best option of treatment has not been established. AIM: To analyze the clinical features and outcomes of patients with SBM diagnosed incidentally...
March 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28229035/imaging-and-outcomes-for-a-new-entity-low-grade-sinonasal-sarcoma-with-neural-and-myogenic-features
#5
Richard B Cannon, Richard H Wiggins, Benjamin L Witt, Yusuf Dundar, Tawni M Johnston, Jason P Hunt
Objectives Low-grade sinonasal sarcoma with neural and myogenic features (LGSSNMF) is a new, rare tumor. Our goal is to describe the imaging characteristics and surgical outcomes of this unique skull base malignancy. Design Retrospective case series. Setting Academic medical center. Participants There were three patients who met inclusion criteria with a confirmed LGSSNMF. Main Outcome Measures Imaging and histopathological characteristics, treatments, survival and recurrence outcomes, complications, morbidity, and mortality...
January 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28228793/craniofacial-fibrous-dysplasia-report-of-a-case-with-diverse-radiological-spectrum
#6
Silky Rajesh Punyani, Saurabh Srivastava, Vishal Ramesh Jasuja
A young male of Asian-Indian ethnicity reported with a complaint of a painless, slow growing swelling over the left side of lower jaw. A thorough clinical history was taken and detailed radiological exam performed. The conventional radiographic examination revealed a mixed radiolucent-radiopaque lesion with unique appearances on different radiographs. Additional computed tomographic examination discovered the involvement of several bones in the skull base. Subsequent to histopathological confirmation a final diagnosis of craniofacial fibrous dysplasia was made...
September 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28228324/extended-maxillotomy-for-skull-base-access-in-contemporary-management-of-chordomas-rationale-and-technical-aspect
#7
Muhammad Fahmi Abdul Jalil, Rowan D Story, Myron Rogers
Minimally invasive approaches to the central skull base have been popularized over the last decade and have to a large extent displaced 'open' procedures. However, traditional skull base surgery still has its role especially when dealing with a large clival chordoma where maximal surgical resection is the principal goal to maximize patient survival. In this paper, we present a case of a 25year-old male patient with chordoma in the inferior clivus which was initially debulked via a transnasal endoscopic approach...
February 19, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28227658/evaluating-the-deflection-of-dexterous-continuum-manipulators-with-unevenly-distributed-compliant-joints
#8
Anzhu Gao, Ryan J Murphy, Hao Liu, Iulian Iordachita, Mehran Armand, Anzhu Gao, Ryan J Murphy, Hao Liu, Iulian Iordachita, Mehran Armand, Hao Liu, Anzhu Gao, Iulian Iordachita, Mehran Armand, Ryan J Murphy
Dexterous continuum manipulators (DCMs) offer great potential for increasing instrument reach in minimally-invasive surgical procedures. We previously designed and fabricated a tendon driven DCM with a large instrument channel and evenly distributed compliant joints for minimally-invasive skull base surgery and the treatment of osteolysis during hip revision surgery. The evenly distributed compliant joints, in some cases, may limit the reach of the DCM during lesion removal. In this paper, we propose a finite element analysis (FEA) method for optimizing the distribution of the compliant joints based on treatment space requirements determined preoperatively...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227655/development-of-a-snake-like-dexterous-manipulator-for-skull-base-surgery
#9
Suat Coemert, Anzhu Gao, John P Carey, Mattias F Traeger, Russell H Taylor, Tim C Lueth, Mehran Armand, Suat Coemert, Anzhu Gao, John P Carey, Mattias F Traeger, Russell H Taylor, Tim C Lueth, Mehran Armand, Anzhu Gao, Russell H Taylor, Mattias F Traeger, Mehran Armand, Suat Coemert, Tim C Lueth, John P Carey
Petrous apex lesions constitute considerable surgical challenges due to their location in the skull base and close relationship with critical structures such as inner ear, carotid arteries, facial nerves and jugular bulb. These lesions often cannot be treated completely with rigid tools due to the limited accessibility. We are aiming to develop a snake-like manipulator to assist surgeons with the infralabyrinthine treatment of petrous apex lesions with increased dexterity. This snake-like dexterous manipulator (SDM) with 3...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224607/a-giant-among-dwarfs-a-new-species-of-galago-primates-galagidae-from-angola
#10
Magdalena S Svensson, Elena Bersacola, Michael S L Mills, Rachel A Munds, Vincent Nijman, Andrew Perkin, Judith C Masters, Sébastien Couette, K Anne-Isola Nekaris, Simon K Bearder
OBJECTIVES: Based on vocalization recordings of an unknown galago species, our main objectives were to compare morphology and call structure with known closely-related taxa and describe a new species of galago. MATERIALS AND METHODS: We conducted field surveys in three forest habitats along the escarpment region in western Angola (Kumbira Forest, Bimbe Area, and Northern Scarp Forest), and examined galago specimens from museums worldwide. We digitized and analyzed calls using Avisoft SASLab Pro software...
February 22, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28224379/nerves-of-steel-a-low-cost-method-for-3d-printing-the-cranial-nerves
#11
Ramin Javan, Duncan Davidson, Afshin Javan
Steady-state free precession (SSFP) magnetic resonance imaging (MRI) can demonstrate details down to the cranial nerve (CN) level. High-resolution three-dimensional (3D) visualization can now quickly be performed at the workstation. However, we are still limited by visualization on flat screens. The emerging technologies in rapid prototyping or 3D printing overcome this limitation. It comprises a variety of automated manufacturing techniques, which use virtual 3D data sets to fabricate solid forms in a layer-by-layer technique...
February 21, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28219414/severe-skull-base-osteomyelitis-caused-by-pseudomonas-aeruginosa-with-successful-outcome-after-prolonged-outpatient-therapy-with-continuous-infusion-of-ceftazidime-and-oral-ciprofloxacin-a-case-report
#12
Cristina Conde-Díaz, Jara Llenas-García, Mónica Parra Grande, Gertrudis Terol Esclapez, Mar Masiá, Félix Gutiérrez
BACKGROUND: Skull base osteomyelitis is an uncommon disease that usually complicates a malignant external otitis with temporal bone involvement. It affects predominantly diabetic and immunocompromised males and has a high mortality rate. Pseudomonas aeruginosa is the most common causative organism. Currently, there is no consensus about the best therapeutic option. Here we describe a case of severe skull base osteomyelitis caused by Pseudomonas aeruginosa with progressive palsy of cranial nerves that was successfully managed with prolonged outpatient continuous infusion of ceftazidime plus oral ciprofloxacin...
February 21, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28219209/-value-of-99-tc-m-mdp-spect-ct-in-clinical-decision-making-for-nasopharyngeal-carcinoma-and-a-comparison-of-the-values-of-different-imaging-techniques-for-diagnosing-skull-base-bone-invasion
#13
W Li, R S Zhang, L Q Zhang, B G Lu, W H Fu
Objective: To analyze the clinical value of SPECT/CT in diagnosis of skull base bone invasion and clinical decision-making for nasopharyngeal carcinoma (NPC), and to compare their diagnostic value with SPECT/CT, CT, MRI, and MRI combined with SPECT (MRI-SPECT) for skull base bone invasion. Methods: Before treatment, among 348 newly diagnosed NPC patients, CT scan was performed in 186 patients (group A) and the remaining 162 patients received MRI scan (group B). Clinical doctors then made clinical management decisions according to the CT or MRI results...
February 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28219164/-a-combination-use-of-endoscope-and-microscope-in-cerebral-pontine-angle-surgery
#14
Z Y Wang, H Jia, J Yang, H Y Tan, H Wu
Objective: To evaluate the application of combination use of microscope and endoscope in cerebral pontine angle (CPA) surgery. Methods: A total of 72 patients undergone lateral skull base surgeries via endoscope under microscopic control from January 2006 to January 2015 was reviewed respectively. The patients including 35 males and 37 females were composed of 22 cases of vestibular swannnomas, 45 cases of cranial neuropathy and 5 cases of CPA chelesteatoma. Twenty cases of vestibular swannnomas, 15 cases of cranial neuropathy and 2 cases of CPA chelesteatoma undergone the surgery via retrosigmoid approach, while other cases undergone the surgery via retrolabyrinthine approach...
February 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28218563/-pediatric-hearing-rehabilitation-with-the-baha%C3%A2-attract-implant-system
#15
Bálint Posta, János András Jarabin, Ádám Perényi, Zsófia Bere, Adriana Neagos, Ferenc Tóth, József Géza Kiss, László Rovó
INTRODUCTION: Baha(®) Attract is a new transcutaneous bone-conduction hearing aid, which is more preferable in childhood than the conventional percutaneous systems. AIM: Our aim was to demonstrate the possibilities of application in childhood. METHOD: Eight children have undergone surgeries (mean age of 13.2 ± 3.2 years; "posterosuperior" incision technique, 5 mm implants). The thickness of the skull bone was determined in 72 children (1-8 years old) at the recommended implant site, based on CT scans...
February 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28218014/bilateral-otoneurological-pathology-to-operate-or-not
#16
Shivun Khosla, Matthew Elliot, Neil Donnelly
OBJECTIVE: To illustrate our experience when managing a complex patient with potentially life-threatening bilateral otological disease facing multisensory compromise including complete loss of audiovestibular function and visual disturbance Clinical presentation: A 67 year old lady, presented with a large left vestibular schwannoma and extensive right cholesteatoma encircling the otic capsule. She underwent translabyrinthine resection of the vestibular schwannoma, resulting in profound sensorineural hearing loss, vestibular hypofunction and corneal scarring following an initial temporary facial palsy...
February 20, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28217161/posttraumatic-giant-fronto-orbito-encephalocele-causing-cosmetic-disfiguring-forehead-swelling-with-proptosis-management
#17
Guru Dutta Satyarthee, Amandeep Kumar
Fracture of the anterior skull base can occur following head injury. Growing skull fracture is usually observed in children under age of 3-years. It commonly involves frontal and parietal regions. However, orbit involvement is extremely uncommon. Authors report a case of giant orbital encephalocele with a forehead disfiguring swelling in a 4-years boy, who sustained head injury about 3½ years back. However, such delayed presentation of traumatic encephalocele is extremely uncommon and represents the first case in the Western literature, who had a successful postoperative outcome...
October 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28216213/expression-of-cathepsin-k-in-skull-base-chordoma
#18
Kaibing Tian, Junpeng Ma, Liang Wang, Ke Wang, Da Li, Shuyu Hao, Yang Yang, Jiang Du, Guijun Jia, Liwei Zhang, Zhen Wu, Junting Zhang
OBJECTIVE: The objective of this study is to explore the association between cathepsin K and the clinical characteristics of skull base chordoma (SBC). METHODS: In this study, 58 paraffin-embedded samples and 85 frozen samples of 94 patients were included. All clinical data corresponding to these patients were available. Immunohistochemical staining and Quantitative Real-time polymerase chain reaction were performed. Positive rate of Immunohistochemical staining slices and delta CT value of Quantitative Real-time polymerase chain reaction represent the cathepsin K expression level in protein and gene level separately...
February 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28215852/lingual-nerve-measurements-in-cadaveric-dissections-clinical-applications
#19
Somsak Sittitavornwong, Michael Babston, Douglas Denson, Steven Zehren, Jonathan Friend
PURPOSE: Lingual nerve (LN) injury is quite prevalent despite its long-known anatomic course. The purpose of this study was to accurately predict the LN pathway by identifying and measuring close anatomic landmarks; these measurements should help lessen the incidence of LN injury. MATERIALS AND METHODS: LN dissection was carried out on 15 halved cadaver skulls (total, 28 specimens). RESULTS: On average, the LN position was approximately 7 mm below the alveolar crest at the distal end of the mandibular second molar, 5...
January 26, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28213192/trans-frontal-sinus-subcranial-approach-to-olfactory-groove-meningiomas-surgical-results-clinical-and-functional-outcome-in-a-consecutive-series-of-21-patients
#20
Lina Raffaella Barzaghi, Alfio Spina, Filippo Gagliardi, Nicola Boari, Pietro Mortini
BACKGROUND: The trans-frontal-sinus-subcranial approach (TFSSA) allows for direct exposure and removal of olfactory groove meningiomas (OGMs), without any brain retraction. Compared to other skull base approaches (like fronto-orbito-basal, transbasal, subcranial, fronto-orbito-zygomatic and one-and-half approach), it could offer the same advantages but it is less invasive. OBJECT: We report the results in a series of 21 consecutive patients harboring OGMs and operated through TFSSA, in order to propose a viable alternative approach...
February 14, 2017: World Neurosurgery
keyword
keyword
50601
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"