keyword
MENU ▼
Read by QxMD icon Read
search

Lateral skull base

keyword
https://www.readbyqxmd.com/read/28418817/virtual-mapping-of-the-frontal-recess-guiding-safe-and-efficient-frontal-sinus-surgery
#1
Neil S Patel, Amy C Dearking, Erin K O'Brien, John F Pallanch
Objective To define relationships between the frontal sinus opening, ostia of other frontal recess cells, and endoscopic landmarks and to develop a clinically useful framework to guide frontal sinus surgery. Study Design Retrospective review. Setting Tertiary care academic referral center. Methods Adult patients with computed tomography (CT) without sinonasal pathology were included. Virtual endoscopy (using OsiriX) and corresponding CT reconstructions were used to identify all visible ostia in the frontal recess and characterize their positions in spaces between the uncinate/agger nasi (U), bulla ethmoidalis (EB), and middle turbinate (MT)...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28413719/intra-specific-variation-and-allometry-of-the-skull-of-late-cretaceous-side-necked-turtle-bauruemys-elegans-pleurodira-podocnemididae-and-how-to-deal-with-morphometric-data-in-fossil-vertebrates
#2
Thiago F Mariani, Pedro S R Romano
BACKGROUND: Previous quantitative studies on Bauruemys elegans (Suárez, 1969) shell variation, as well as the taphonomic interpretation of its type locality, have suggested that all specimens collected in this locality may have belonged to the same population. We rely on this hypothesis in a morphometric study of the skull. Also, we tentatively assessed the eating preference habits differentiation that might be explained as due to ontogenetic changes. METHODS: We carried out an ANOVA testing 29 linear measurements from 21 skulls of B...
2017: PeerJ
https://www.readbyqxmd.com/read/28401031/sella-turcica-measurements-on-lateral-cephalograms-of-patients-with-neurofibromatosis-type-1
#3
Reinhard E Friedrich, Johanna Baumann, Anna Suling, Hannah T Scheuer, Hanna A Scheuer
The aim of this study was to measure line segments and areas of sella turcica on lateral cephalograms with respect to the clinical diagnosis of facial phenotype of patients with neurofibromatosis type 1 (NF1). Special attention was given to correlate the measured values with certain tumour types that are typical for this disease. Material and methods: Lateral cephalograms of 194 individuals were investigated. Patients with NF1 were further divided according to the detection and topography of facial plexiform neurofibromas (PNF) taking into account the distribution pattern of the trigeminal nerve...
2017: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/28387625/surgical-technique-and-results-of-cable-graft-interpositioning-of-the-facial-nerve-in-lateral-skull-base-surgeries-experience-with-213-consecutive-cases
#4
Sampath Chandra Prasad, Karthikeyan Balasubramanian, Enrico Piccirillo, Abdelkader Taibah, Alessandra Russo, Jingchun He, Mario Sanna
OBJECTIVE The aim in this study was to review the technique and outcomes of cable graft interpositioning of the facial nerve (FN) in lateral skull base surgeries. METHODS The authors retrospectively evaluated data from patients who had undergone cable graft interpositioning after nerve sacrifice during skull base tumor removal between June 1987 and May 2015. All patients had undergone lateral skull base approaches to remove tumors at a quaternary referral center in Italy. Facial nerve function was evaluated before and after surgery using the House-Brackmann (HB) grading system...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28365066/transcanal-endoscopic-approach-to-lesions-of-the-suprageniculate-ganglion-fossa
#5
Daniele Marchioni, Alessia Rubini, João Flávio Nogueira, Brandon Isaacson, Livio Presutti
OBJECTIVE: The aim of this paper would be to describe the first case series of exclusive transcanal endoscopic approach to treat lesions with limited extension at the suprageniculate fossa. This endoscopic approach allowed a complete removal of suprageniculate disesases with low complication rates using a minimally invasive surgical route. METHODS: This is a retrospective chart analysis and a surgery video recording review of these patients were performed in August 2015...
March 29, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28362929/metastatic-liposarcoma-of-the-skull-base-a-case-report-and-review-of-literature
#6
Nirmeen Zagzoog, Greta Ra, Alex Koziarz, John Provias, Doron Sommer, Saleh A Almenawer, Kesava Reddy
BACKGROUND AND IMPORTANCE: Myxoid liposarcoma is not an uncommon form of sarcoma. However, it usually affects the lower extremity long bones. Scapular involvement is extremely rare, as is a metastasis to the parasellar region. We present a case of liposarcoma of the skull base originating in the scapular region and metastasizing to the sellar and parasellar regions and provide a review of the pertinent literature. CLINICAL PRESENTATION: A 43-year-old female patient diagnosed with left scapular myxoid liposarcoma was treated with surgical resection...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28362632/estimation-of-arterial-input-by-a-noninvasive-image-derived-method-in-brain-h-sub-2-sub-sup-15-sup-o-pet-study-confirmation-of-arterial-location-using-mr-angiography
#7
Muhammad Muinul Islam, Tetsuya Tsujikawa, Tetsuya Mori, Yasushi Kiyono, Hidehiko Okazawa
A noninvasive method to estimate input function directly from H<sub>2</sub><sup>15</sup>O brain PET data for measurement of cerebral blood flow (CBF) was proposed in this study. The image derived input function (IDIF) method extracted the time-activity curves (TAC) of the major cerebral arteries at the skull base from the dynamic PET data. The extracted primordial IDIF showed almost the same radioactivity as the arterial input function (AIF) from sampled blood at the plateau part in the later phase, but significantly lower radioactivity in the initial arterial phase compared with that of AIF-TAC...
March 31, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28357097/surgical-management-and-follow-up-of-lateral-skull-base-tumors-an-8-year-review
#8
Jie Kong, Hong-Yu Yang, Yu-Fan Wang, Hui-Jun Yang, Shi-Yue Shen, Feng Wang
The purpose of the present article was to describe the diagnostic evaluation of, and surgical approaches to, lateral skull base tumors (LSBTs). The study is a retrospective review of 21 patients diagnosed with tumors that involve lateral skull base (8 with malignant diseases and 13 with benign lesions) who were surgically treated during a 8-year period. The transparotid-transmandibular (38%) was the most commonly performed surgical procedure, followed by the transmandibular (24%), the transmaxillary (24%), the transcervical approach (10%) and the combined approach (4%)...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28350677/insight-into-the-pathophysiologic-mechanisms-behind-cognitive-dysfunction-in-trigonocephaly
#9
Joris J B van der Vlugt, Jacques J M N van der Meulen, Robert R J Coebergh van den Braak, Christl Vermeij-Keers, Edwin G C Horstman, Steven E R Hovius, Frank C Verhulst, André I Wierdsma, Maarten H Lequin, Jolanda M E Okkerse
BACKGROUND: The relationship between trigonocephaly and cognitive problems might be explained by: secondary mechanical factors related to growth restriction of the skull, and primary structural defects caused by a shared mechanism related to brain developmental disorder(s) and skull malformation. However, because the exact pathophysiology remains unknown, we examined the pathophysiologic mechanisms behind cognitive dysfunction in patients with trigonocephaly, with an aim of providing a model for cognitive dysfunction based on routinely available variables...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28338593/clinical-correlates-to-assist-with-cte-diagnosis-insights-from-a-novel-rodent-repeat-concussion-model
#10
Gretchen M Thomsen, Ara Ko, Megan Y Harada, Annie Ma, Livia Wyss, Patricia Haro, Jean-Philippe Vit, Pablo Avalos, Navpreet Dhillon, Noell Cho, Oksana Shelest, Eric J Ley
INTRODUCTION: Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease linked to repetitive head injuries. CTE symptoms include changes in mood, behavior, cognition and motor function, however CTE is only currently diagnosed post-mortem. Using a rat model of recurrent traumatic brain injury (TBI) we demonstrate rodent deficits that predict the severity of CTE-like brain pathology. METHODS: Bilateral, closed skull, mild TBI was administered once per week to 35 WT rats, 8 rats received 2 injuries ('2xTBI'), 27 rats received 5 injuries ('5xTBI') and 13 rats were sham controls...
March 23, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28330628/analysis-of-the-dura-involvement-in-cholesteatoma-surgery
#11
David Schwarz, Antoniu-Oreste Gostian, Sami Shabli, Philipp Wolber, Karl Bernd Hüttenbrink, Andreas Anagiotos
OBJECTIVE: The involvement of the dura is a rare yet potentially life-threatening complication during cholesteatoma surgery. Thus, the knowledge about treatment and consequences of this issue is of great importance to every ear surgeon. METHODS: This retrospective study analyzed the dura involvement with regard to the type of defect, reconstruction method used, and the post-operative complications of 1291 pediatric and adult cholesteatoma surgeries performed at an academic tertiary care center over a twelve-year period...
March 19, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28321373/a-review-of-skull-base-tumor-clinical-trials-past-trends-and-future-opportunities
#12
Anand Devaiah, Charles Murchison
Objective Tumors of the anterior and lateral skull base (TALSB) are relatively rare but can be devastating to patients. By examining trials focused on TALSB, we can characterize the studies that predominate and better understand current directions of study. This gives us a better understanding of future studies to pursue. Study Design This is a retrospective analysis. Settings We set skull base tumor clinical trials in the United States which are listed in ClinicalTrials.gov. Subjects and Methods We used the information available on ClinicalTrials...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28317322/cerebrospinal-fluid-leaks-during-endoscopic-sinus-surgery-in-thirty-two-patients
#13
Georg J Ledderose, Klaus Stelter, Christian S Betz, Anna S Englhard, Carola Ledderose, Andreas Leunig
The inadvertent cerebrospinal fluid (CSF) leak is a very rare but potentially hazardous complication in endoscopic sinus surgery. We performed a systematic review of a series of 32 cases of CSF leaks occurring during sinus surgery. We identified surgical inexperience and impaired orientation in the surgical field as the main risk factors for iatrogenic CSF leaks. The lateral lamella of the cribriform plate and the anterior ethmoid roof are predilection sites for CSF leaks in the anterior skull base. We determined suitable methods of repair based on the location of the leak and found high success rates after endoscopic leak closure...
March 20, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28314400/endoscopic-resection-of-clival-malignancies
#14
REVIEW
Adam J Folbe, Peter F Svider, James K Liu, Jean Anderson Eloy
Surgical management of clival lesions presents numerous therapeutic challenges because of the close proximity of surrounding critical structures. With a detailed understanding of the endoscopic endonasal approach and relevant considerations, appropriate lesions can be removed in a safe and minimally invasive manner. Use of this technique as a primary approach represents the standard of care for many lesions at leading skull base centers, although adjunct techniques may be necessary in extensive lesions and those with significant lateral extension...
April 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28297453/spot-scanning-proton-therapy-minimizes-neutron-dose-in-the-setting-of-radiation-therapy-administered-during-pregnancy
#15
Xin Wang, Falk Poenisch, Narayan Sahoo, Ronald X Zhu, MingFwu Lii, Michael T Gillin, Jing Li, David Grosshans
This is a real case study to minimize the neutron dose equivalent (H) to a fetus using spot scanning proton beams with favorable beam energies and angles. Minimum neutron dose exposure to the fetus was achieved with iterative planning under the guidance of neutron H measurement. Two highly conformal treatment plans, each with three spot scanning beams, were planned to treat a 25-year-old pregnant female with aggressive recurrent chordoma of the base of skull who elected not to proceed with termination. Each plan was scheduled for delivery every other day for robust target coverage...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28293965/endoscopic-approach-for-a-delayed-post-traumatic-ethmoidal-mucocele-a-technical-note
#16
Mahmoud Messerer, Giulia Cossu, Roy Thomas Daniel
OBJECTIVE: Delayed post-traumatic mucoceles are rare. We describe the surgical treatment of a post-traumatic ethmoidal mucocele with intra-orbital extension. METHOD: A uninostril endoscopic endonasal approach (EEA) was performed. The access was contralateral to the lesion to provide a wider lateral view. After a large sphenoid and ethmoid sinuses opening, the collection was drained and the optic nerve precociously identified. The orbital roof was eroded and the frontal dura mater directly visible...
March 15, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28261802/ancestral-variation-in-orbital-rim-shape-a-three-dimensional-pilot-study
#17
Katie M Rubin, Valerie B DeLeon
Traditional nonmetric methods of ancestry assessment posit orbital rim shape varies among ancestral groups. This pilot study uses morphometric analysis of 3D orbital variation to test discrimination among individuals of primarily European, African, and Asian ancestry. Although the size and nature of the sample analyzed limit inferences for other samples, principal components analysis suggests ancestry has a significant effect on rim shape (p = 2.93e-04). European orbits display more marked folding of the orbit in the sagittal plane than either African or Asian orbits, while the lateral margin of African orbits lies further posterior relative to the medial margin when compared to Asian orbits...
March 6, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28254539/video-is-part-of-the-ms-three-layer-reconstruction-with-iliotibial-tract-after-endoscopic-resection-of-sinonasal-tumors-technical-note
#18
Davide Mattavelli, Alberto Schreiber, Marco Ferrari, Remo Accorona, Andrea Bolzoni Villaret, Paolo Battaglia, Paolo Castelnuovo, Piero Nicolai
INTRODUCTION: Watertight reconstruction to separate the intradural compartment from the sinonasal cavities is crucial after endoscopic resection with transnasal craniectomy (ERTC) for naso-ethmoidal tumors. Three-layer reconstruction with the iliotibial tract (TRITT) is a safe and reliable alternative when vascularized flaps are not available. SURGICAL TECHNIQUE: The iliotibial tract graft is harvested on the lateral aspect of the thigh and divided in three portions, which are positioned in a multi-layered fashion to close the skull base defect...
February 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28252583/-the-experience-with-the-surgical-treatment-of-glomus-tumours
#19
V M Svistushkin, E A Shevchik, I T Muhamedov, D M Pshonkina
INTRODUCTION: glomus tumours of the temporal bones rank second after neurinomas of the VII-th pair of cranial nerves among the pathological conditions that are likely to cause hearing mpairment. Being extensively vascularized locally invasive neoplasms, glomus tumours constitute a serious challenge for the surgeon because of their localization in the vicinity of the vitally important vascular and neural structures of the lateral skull base. AIM: To characterize some peculiar features of the surgical interventions and postoperative management of the patients presenting with different types of glomus tumours...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28248639/prediction-and-near-field-observation-of-skull-guided-acoustic-waves
#20
Hector Estrada, Johannes Rebling, Daniel Razansky
Ultrasound waves propagating in water or soft biological tissue are strongly reflected when encountering the skull, which limits the use of ultrasound-based techniques in transcranial imaging and therapeutic applications. Current knowledge on the acoustic properties of the cranial bone is restricted to far-field observations, leaving its near-field unexplored. We report on the existence of skull-guided acoustic waves, which was herein confirmed by near-field measurements of optoacoustically-induced responses in ex-vivo murine skulls immersed in water...
March 1, 2017: Physics in Medicine and Biology
keyword
keyword
36562
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"