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https://www.readbyqxmd.com/read/28940480/thirty-day-morbidity-and-mortality-following-otologic-neurotologic-surgery-analysis-of-the-national-surgical-quality-improvement-program
#1
Zachary G Schwam, Elias Michaelides, Phoebe Kuo, Michael A Hajek, Benjamin L Judson, Christopher Schutt
OBJECTIVES/HYPOTHESIS: To determine the rate and timing of, as well as risk factors for, postoperative morbidity and mortality following otologic and neurotologic surgery. STUDY DESIGN: Retrospective cohort study. METHODS: A total of 1,381 patients were identified in the American College of Surgeons National Surgical Quality Improvement Program for the years 2005 to 2010. Simple summary statistics, χ(2) , and multivariable logistic regression were performed...
September 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28938328/bulla-down-endoscopic-sphenoidotomy
#2
Mohannad Al-Qudah
Surgical approach to the sphenoid sinus is still one of the most challenging steps in sinus surgery. The author describes a novel, simple, and safe technique to access sphenoid sinus to manage isolated sphenoid pathologies or approach skull base by removing the bulla ethmoidalis and temporarily lateralizing the middle turbinate during endoscopic sinus surgery. The current approach provides an effective method to access the sphenoid sinus without increasing morbidity and avoids unnecessary possible complications associated with turbinates' resection...
September 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28935488/utility-of-tc-99m-mdp-bone-spect-in-evaluation-of-osseous-involvement-in-craniofacial-malignancies
#3
Shabana Saeed, Saif Ul Haq, Muhammad Sohaib, Ali Nawaz Khan
PURPOSE: To assess the role of technetium-99m methoxy diphosphonate (Tc-99m MDP) single photon emission tomography (SPECT) imaging for the detection of osseous invasion in craniofacial malignancies. MATERIAL AND METHODS: The study was performed in 45 subjects using Tc-99m MDP (740 MBq). Out of 45 subjects, 30 were patients had different craniofacial malignancies, and 15 subjects who did not have any malignancy served as controls. Planar imaging was performed. Anterior, lateral and oblique lateral views of the skull were obtained...
August 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28922880/a-side-door-to-meckel-s-cave-anatomic-feasibility-study-for-the-lateral-transorbital-approach
#4
Blake Harrison Priddy, Cristian Ferrareze Nunes, Andre Beer-Furlan, Ricardo Carrau, Iacopo Dallan, Daniel Monte-Serrat Prevedello
BACKGROUND: In the last decade, endoscopic skull base surgery has significantly developed and generated a plethora of techniques and approaches for access to the cranial ventral floor. However, the exploration for the least-aggressive, maximally efficient approach continues. OBJECTIVE: To describe in detail an anatomical study, along with the technical nuances of a novel endoscopic approach to Meckel's Cave (MC) using a lateral transorbital (LTO) route. METHODS: Eighteen orbits of injected cadaveric specimens were operated on, using an endoscopic LTO approach to MC, middle cranial fossa, and paramedian skull base preserving the orbital rim...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922245/a-craniometric-analysis-of-cranial-base-and-cranial-vault-differences-in-patients-with-metopic-craniosynostosis
#5
Sanjay Naran, Daniel Mazzaferro, Ari Wes, Arastoo Vossough, Scott P Bartlett, Jesse A Taylor
PURPOSE: The effect of synostosis is not confined to the immediate vicinity of the suture. The authors hypothesized metopic craniosynostosis results in migration of lateral structures from midline, and differences in segmental volume of the cranial fossa. METHODS: A retrospective case-controlled cohort analysis of patients with nonsyndromic metopic craniosynostosis was performed. Craniometric angles, distances to landmarks from midline, cephalic index, and segmented volume ratios were calculated...
September 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28899830/simple-lateral-suboccipital-approach-and-modification-for-vertebral-artery-aneurysms-a-study-of-52-cases-over-10-years
#6
Mardjono Tjahjadi, Behnam Rezai-Jahromi, Joseph Serrone, Ville Nurminen, Joham Choque-Velasquez, Riku Kivisaari, Hanna Lehto, Mika Niemelä, Juha Hernesniemi
INTRODUCTION: Complex skull base approaches are frequently used to treat intracranial vertebral artery (VA) and proximal posterior inferior cerebellar artery (PICA) aneurysms. These complex procedures are associated with higher risk of neurovascular injury. Hence, a less invasive surgical approach is needed to improve treatment's efficacy and safety. MATERIAL AND METHODS: A retrospective analysis was conducted on clinical and radiological data from surgeries where simple lateral suboccipital and "lateral enough" approaches were used to clip VA aneurysms in the Department of Neurosurgery at Helsinki University Central Hospital from 2000 - 2009...
September 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28882600/lesson-to-be-remembered-from-a-skull-base-tumor
#7
C Briet, F Bernard, P Rodien
The natural history of giant prolactinomas is not known. While it is commonly accepted that the enlargement of microadenoma is rare and more limited than macroadenoma, it is so far uncommon that macroadenoma progress to giant adenoma. Thus, spontaneous enlargement of adenomas is poorly documented. We report the unusual history of undiagnosed microprolactinoma, revealed 12years later at the stage of a giant adenoma presenting as a skull base tumor. This unique observation provides information on the natural history of giant adenomas and arguments for particular attention to microadenomas with signs of invasion...
September 4, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28875046/ganglioneuroma-of-the-external-auditory-canal-and-middle-ear
#8
Hesham Saleh Almofada, Michael Steven Timms, M Anas Dababo
OBJECTIVE: We report an extremely rare case of ganglioneuroma involving the external auditory canal and middle ear. CASE REPORT: Ganglioneuromas are rare benign mature tumors thought to originate from sympathetic ganglions, with the highest incidence in the retroperitoneum, adrenal medulla, and posterior mediastinum. We present a case of ganglioneuroma of the external auditory canal and middle ear. At the age of 12 months, the patient was diagnosed with neuroblastoma stage IV with metastasis to the squamous temporal bone, bone marrow, and skull base...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28872156/indications-of-cone-beam-ct-in-head-and-neck-imaging-in-children
#9
U Walliczek-Dworschak, I Diogo, L Strack, M Mandapathil, A Teymoortash, J A Werner, C Güldner
For imaging of bony structures, especially for the anterior and lateral skull base in ORL medicine, cone beam computed tomography (CBCT) is an increasingly used alternative to CT, with a lower exposition to plain radiography that makes its use for imaging, particularly in children, very interesting. The aim of this study was to analyse possible indications and settings for CBCT in children and compare them to those of adults. A total of 554 patients (age range 0-18 years, mean age 10.36 years), who underwent CBCT between 01/2004-06/2013 in the ENT department at the university clinic of Marburg were enrolled in this retrospective analysis to evaluate technical parameters and indications...
August 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28869195/-proton-therapy-for-head-and-neck-cancers
#10
P Blanchard, S J Frank
The absence of exit dose and the sharp lateral penumbra are key assets for proton therapy, which are responsible for its dosimetric superiority over advanced photon radiotherapy. Dosimetric comparisons have consistently shown a reduction of the integral dose and the dose to organs at risk favouring intensity-modulated proton therapy (IMPT) over intensity-modulated radiotherapy (IMRT). The structures that benefit the most of these dosimetric improvements in head and neck cancers are the anterior oral cavity, the posterior fossa, the visual apparatus and swallowing structures...
August 28, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28868197/combined-simultaneous-transcranial-and-endoscopic-endonasal-resection-of-sphenoorbital-meningioma-extending-into-the-sphenoid-sinus-pterygopalatine-fossa-and-infratemporal-fossa
#11
Masahide Matsuda, Hiroyoshi Akutsu, Shuho Tanaka, Akira Matsumura
BACKGROUND: Sphenoorbital meningiomas are surgically challenging because of their nature to extend to adjacent structures. Here, we describe a case of recurrent sphenoorbital meningioma extending into the sphenoid sinus, pterygopalatine fossa, and infratemporal fossa, which was resected using combined simultaneous transcranial and endoscopic endonasal approaches. CASE DESCRIPTION: A 62-year-old man who had 15 years earlier undergone partial resection of a left sphenoorbital meningioma presented with a 1-year history of progressive proptosis of the left eye...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28846790/can-lateral-nasopharyngeal-radiographs-be-used-to-predict-eustachian-tube-dysfunction
#12
Karen Hawley, Neil Vachhani, Samantha Anne
The objective of our case-control study was to determine whether craniofacial features on lateral nasopharyngeal radiographs (LNPRs) can predict eustachian tube dysfunction (ETD). The study included patients seen in the otolaryngology clinic from 2005 to 2011. Patients 0 to 10 years old with pressure equalization tube (PET) placement and LNPR within 6 months were included. Measurements were compared with age-matched controls selected at random to identify craniofacial features associated with ETD. Using receiver operating curve methodology, selected measurements were used to correlate age, craniofacial features, and ETD...
August 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28845040/surgical-anatomy-for-the-endoscopic-endonasal-approach-to-the-ventrolateral-skull-base
#13
Kenichi Oyama, Shigeyuki Tahara, Toshio Hirohata, Yudo Ishii, Daniel M Prevedello, Ricardo L Carrau, Sebastien Froelich, Akira Teramoto, Akio Morita, Akira Matsuno
The authors describe the surgical anatomy for the endoscopic endonasal approach (EEA) to the ventrolateral skull base. The ventrolateral skull base can be divided into two segments: the upper lateral and lower lateral skull base. The upper lateral skull base includes the cavernous sinus and the orbit, while the lower lateral skull base includes the petrous apex, Meckel's cave, parapharyngeal space, infratemporal fossa, etc. To gain access to the upper lateral skull base, a simple opening of the ethmoid sinus provides sufficient exposure of this area...
August 25, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28838109/endoscopic-endonasal-interdural-middle-fossa-approach-to-the-maxillary-nerve-anatomic-considerations-and-surgical-relevance
#14
Kumar Abhinav, David Panczykowski, Wei-Hsin Wang, Carl H Synderman, Paul A Gardner, Eric W Wang, Juan C Fernandez-Miranda
BACKGROUND: The maxillary nerve (V2) can be approached via the open middle fossa approach. OBJECTIVE: To delineate the anatomy of V2 and its specific segments with respect to the endonasal landmarks. We present the endoscopic endonasal interdural middle fossa approach to V2 and its potential application for the treatment of perineural spread in sinonasal/skull base tumors. METHODS: Five human head silicon-injected specimens underwent bilateral endoscopic endonasal transpterygoid approaches...
August 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28838106/subgaleal-retention-sutures-internal-pressure-dressing-technique-for-dolenc-approach
#15
Anthony M Burrows, Tarek Rayan, Jamie J Van Gompel
BACKGROUND: Extradural approach to the cavernous sinus, the "Dolenc" approach recognizing its developing Dr. Vinko Dolenc, is a critically important skull base approach. However, resection of the lateral wall of the cavernous sinus, most commonly for cavernous sinus meningiomas, results commonly in a defect that often cannot be reconstructed in a water-tight fashion. This may result in troublesome pseudomeningocele postoperatively. OBJECTIVE: To describe a technique designed to mitigate the development of pseudomeningocele...
August 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28833165/volumetric-analysis-of-olfactory-neuroblastoma-skull-base-laterality-and-implications-on-neck-disease
#16
John P Marinelli, Jamie J Van Gompel, Michael J Link, Eric J Moore, Daniel L Price, Katherine A Lees, Mark W Kaczor, Jeffrey R Janus
OBJECTIVE: To determine if the laterality of primary tumors in patients with olfactory neuroblastoma (ONB) influenced the pattern and development of neck disease. METHODS: Using a retrospective cohort study design from 1994 to 2015, the primary tumors of patients who either presented with or developed neck disease were volumetrically analyzed using iPlan software (version 3.0.0, BrainLAB, Feldkirchen, Germany) by two independent observers. Agreement of volume-derived sidedness was assessed with a kappa statistic, whereas agreement in volume-derived degree of tumor laterality was evaluated with an intraclass correlation coefficient...
August 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28832086/assesment-of-the-orb%C3%A4-t-morphometry-on-west-anatol%C3%A4-an-dry-skulls
#17
Nilufer Goksin Yonguc, Nuket Gocmen-Mas, Funda Aksu, Mete Edizer, Sahika Pinar Akyer, Selim Hamit Karabekir
The orbit is very frequently damaged by traumas which results in not only with bone deficits, but also with functional deformities if reconstruction is not appropriate. Anatomical exposure of the bony orbit is of importance for both anatomists and surgeons who perform operation on this area. The current study evaluated the group of morphometrical parameters on 74 adult West Anatolian dry skulls and stereological surface area on the dry skull orbits while describing the clinical importance. Surface area on the orbital base of the skulls were also evaluated using stereological method, bilaterally...
August 23, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28828558/anatomical-study-of-occipital-triangles-the-inferior-suboccipital-triangle-a-useful-vertebral-artery-landmark-for-safe-postero-lateral-skull-base-surgery
#18
Giuseppe La Rocca, Roberto Altieri, Luca Ricciardi, Alessandro Olivi, Giuseppe Maria Della Pepa
BACKGROUND: Vertebral artery (VA) identification within the suboccipital triangle is a key step in craniocervical junction surgery. Often VA exposition at this level is arduous (space-occupying lesions, previous surgery); to identify VA more proximally may prove useful in complex cases. An alternative triangle is present just below the suboccipital one, where VA can be easily controlled; we named it the inferior suboccipital triangle (IST). The aim of the study is to identify IST anatomical relations and VA space orientation and evaluate its practical utility in surgery...
August 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28808799/transorbital-endoscopic-approach-for-exposure-of-the-sylvian-fissure-middle-cerebral-artery-and-crural-cistern-an-anatomical-study
#19
João Paulo Almeida, Armando S Ruiz-Treviño, Sathwik R Shetty, Sacit B Omay, Vijay K Anand, Theodore H Schwartz
BACKGROUND: The availability of minimal access instrumentation and endoscopic visualization has revolutionized the field of minimally invasive skull base surgery. The transorbital endoscopic approach using an eyelid incision has been proposed as a new minimally invasive technique for the treatment of skull base pathology, mostly extradural tumors. Our study aims to evaluate the anatomical aspects and potential role of the transorbital endoscopic approach for exposure of the sylvian fissure, middle cerebral artery and crural cistern...
August 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28799880/a-morphometric-survey-of-the-parasellar-region-in-more-than-2700-skulls-emphasis-on-the-middle-clinoid-process-variants-and-implications-in-endoscopic-and-microsurgical-approaches
#20
Akshay Sharma, Gabrielle E Rieth, Joseph E Tanenbaum, James S Williams, Nakao Ota, Srikant Chakravarthi, Sunil Manjila, Amin Kassam, Bulent Yapicilar
OBJECTIVE The middle clinoid process (MCP) is a bony projection that extends from the sphenoid bone near the lateral margin of the sella turcica. The varied prevalence and morphological features of the MCP in populations stratified by age, race, and sex are unknown; however, the knowledge of its anatomy and preoperative recognition on CT scans can aid greatly in complication avoidance and management. The aim of this study was to further illustrate the surgical anatomy of the parasellar region and to quantify the incidence of MCP and caroticoclinoid rings (CCRs) in dried preserved human anatomical specimens...
August 11, 2017: Journal of Neurosurgery
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