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https://www.readbyqxmd.com/read/29166425/anatomy-of-the-sphenopalatine-artery-and-its-implications-for-transnasal-neurosurgery
#1
M Eordogh, A Grimm, I Gawish, L Patonay, R Reisch, H R Briner, G Baksa
BACKGROUND: The knowledge of sinonasal vasculature is inevitable in transnasal neurosurgery. We performed an anatomical study on the sphenopalatine artery from the perspective of skull base procedures. METHODOLOGY: To analyse the anatomical landmarks of the sphenopalatine artery, arterial skull corrosion casts (26 head halves) underwent endoscopic transnasal phantom surgery. Furthermore, we performed microsurgical dissection on formaldehyde-fixated cadavers with arterial perfusion (14 head halves) as well as studied Cone Beam CT-scans of anonymised patients and cadavers (115 head sides)...
November 22, 2017: Rhinology
https://www.readbyqxmd.com/read/29151333/isolated-sphenoid-sinus-pathologies-a-series-of-40-cases
#2
Fakih Cihat Eravcı, Alper Ceylan, Mehmet Göcek, Fikret İlerı, Süleyman Sabri Uslu, Metin Yılmaz, Yusuf Kızıl
Background/aim: Isolated sphenoid sinus-derived lesions are rare and generally present with unclear symptoms. We are sharing our experience to be mindful of such lesions in differential diagnosis and to help accomplish successful treatment while avoiding revisions and complications.Materials and methods: Data from patients who underwent isolated sphenoid sinus surgeries (ISSs) were retrospectively extracted from the period of January 2005 to August 2015. Demographic data, chief complaints and presenting symptoms, imaging findings, surgical management, and results were evaluated...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29145656/refining-operative-strategies-for-optic-nerve-decompression-a-morphometric-analysis-of-transcranial-and-endoscopic-endonasal-techniques-using-clinical-parameters
#3
Steven L Gogela, Lee A Zimmer, Jeffrey T Keller, Norberto Andaluz
BACKGROUND: Various approaches can be considered for decompression of the intracanalicular optic nerve. Although clinical experience has been reported, no quantitative study has yet compared the extent of decompression achieved by an endoscopic endonasal versus transcranial approach. OBJECTIVE: Toward this aim, our morphometric analysis compared both approaches by quantifying the circumferential degree of optic canal decompression that is possible before any meningeal violation, which would result in cerebrospinal fluid (CSF) leak...
May 3, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29138975/distal-transsylvian-keyhole-approach-for-unruptured-anterior-circulation-small-aneurysms
#4
Ririko Takeda, Hiroki Kurita
BACKGROUND: To reduce complications associated with conventional pterional craniotomy, a transsylvian keyhole approach for unruptured small anterior circulation aneurysms is proposed. METHODS: A 7-cm linear scalp incision is made along the hairline, beginning at the zygoma, followed by minimal temporal muscle dissection. Two burr holes are drilled out at McCarty's point and the temporal bone, and a 3-cm equilateral triangle bone flap is made, whose apex is located above the sylvian point...
November 14, 2017: Acta Neurochirurgica
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
#5
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/29134168/anatomical-region-segmentation-for-objective-surgical-skill-assessment-with-operating-room-motion-data
#6
Yangming Li, Randall A Bly, R Alex Harbison, Ian M Humphreys, Mark E Whipple, Blake Hannaford, Kris S Moe
Background  Most existing objective surgical motion analysis schemes are limited to structured surgical tasks or recognition of motion patterns for certain categories of surgeries. Analyzing instrument motion data with respect to anatomical structures can break the limit, and an anatomical region segmentation algorithm is required for the analysis. Methods  An atlas was generated by manually segmenting the skull base into nine regions, including left/right anterior/posterior ethmoid sinuses, frontal sinus, left and right maxillary sinuses, nasal airway, and sphenoid sinus...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29134161/pneumatization-patterns-of-the-petrous-apex-and-lateral-sphenoid-recess
#7
Alexander Malone, Margherita Bruni, Robert Wong, Mark Tabor, K Paul Boyev
Introduction  The petrous apex poses a challenge for surgical intervention due to poor access. As intraoperative image guidance and surgical instrumentation improve, newer endoscopic approaches are increasingly favored. This study aims to provide normative data on the anatomy of the lateral sphenoid sinus recess and petrous apex. These normative data could assist in determining the efficacy of a transnasal transsphenoidal approach to lesions of the anteroinferior petrous apex. Methods  This is a retrospective study investigating normative data on all maxillofacial computed tomography (CT) scans performed at a level I trauma center over a 6-month period...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29133685/cardiomyopathy-in-acromegaly-and-the-effect-of-trans-sphenoidal-surgery
#8
Subhash Yadav, Eesh Bhatia
No abstract text is available yet for this article.
November 2017: Neurology India
https://www.readbyqxmd.com/read/29125646/epidural-abscess-caused-by-schizophyllum-commune-a-rare-case-of-rhinogenic-cranial-complication-by-a-filamentous-basidiomycete
#9
Kazuya Tone, Ryuichi Fujisaki, Shigehiro Hagiwara, Takashi Tamura, Shinobu Ishigaki, Mohamed Mahdi Alshahni, Makoto Takehisa, Takehiro Watanabe, Takuya Yasui, Takuo Tokairin, Toshiyo Sagawa, Tetsuya Sakamoto, Ken Ito, Kazuyoshi Kuwano, Koichi Makimura
Central nervous system (CNS) infections due to filamentous basidiomycetes are extremely rare. We encountered a case of epidural abscess due to Schizophyllum commune that extended from sinusitis. A 53-year-old Japanese man presented at our hospital with a headache. Computed tomography (CT) of the cranium and sinuses showed ethmoid and sphenoid sinusitis with no intracranial abnormalities. The patient was diagnosed with acute sinusitis and underwent antibiotic treatment. However, the symptoms deteriorated, and the patient came to our hospital again with consciousness disturbance...
November 10, 2017: Mycoses
https://www.readbyqxmd.com/read/29125446/suprasellar-and-recurrent-pediatric-craniopharyngiomas-expanding-indications-for-the-extended-endoscopic-transsphenoidal-approach
#10
Andrew F Alalade, Elizabeth Ogando-Rivas, Jerome Boatey, Mark M Souweidane, Vijay K Anand, Jeffrey P Greenfield, Theodore H Schwartz
OBJECTIVE The expanded endonasal endoscopic transsphenoidal approach has become increasingly used for craniopharyngioma surgery in the pediatric population, but questions still persist regarding its utility in younger children, in recurrent and irradiated tumors, and in masses primarily located in the suprasellar region. The narrow corridor, incomplete pneumatization, and fear of hypothalamic injury have traditionally relegated this approach to application in older children with mostly cystic craniopharyngiomas centered in the sella...
November 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29122076/a-systematic-review-of-secondary-cerebrospinal-fluid-leaks
#11
Neeraja Konuthula, Mohemmed N Khan, Anthony Del Signore, Satish Govindaraj, Raj Shrivastava, Alfred M Iloreta
BACKGROUND: Secondary cerebrospinal leaks (CSF) are leaks that recur after an initial endoscopic repair of CSF leaks. Identification of characteristics that could predict secondary leaks may allow surgeons to plan repairs with the knowledge that these defects are more likely to fail. OBJECTIVE: To identify characteristics that could predict secondary CSF leaks. METHODS: A search of all studies that reported outcomes after endoscopic repair of CSF leaks was conducted by using medical literature data bases...
November 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29114287/unruptured-internal-carotid-artery-aneurysm-associated-with-functional-pituitary-adenoma-a-true-association
#12
Guru Dutta Satyarthee, Amol Raheja
Detection of incidental intracranial aneurysm on neuroimaging can be associated with pituitary adenoma; however, such association is extremely rare. However, aneurysm with extension into the sella is extremely rare, and increases the risk of inadvertent intraoperative rupture, if trans-sphenoidal decompression is attempted either using endoscopic or microscopic surgical approach. Hanak et al. in a literature review of intrasellar noniatrogenic aneurysms over PubMed search in 2012 could only collect 31 studies, of which only eight cases had pituitary adenoma associated with aneurysm extending into sella...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29090009/sphenoid-sinus-diseases-a-review-of-1-442-patients
#13
REVIEW
Supranee Fooanant, Salita Angkurawaranon, Chaisiri Angkurawaranon, Kannika Roongrotwattanasiri, Saisawat Chaiyasate
OBJECTIVE: To review and report diseases of the sphenoid sinus from the literature and from a university hospital. METHODS: Inpatients' data were retrospectively gathered and reviewed from January 2006 to June 2016. Clinical data, imaging, organisms, and pathological reports were collected. Pathology was divided into infection/inflammation, tumor, and miscellaneous. A literature review was performed with the search term "isolated sphenoid disease" in PubMed. Original primary studies with 20 patients or more were reviewed...
2017: International Journal of Otolaryngology
https://www.readbyqxmd.com/read/29076466/-a-supraorbital-trans-eyebrow-approach-in-surgery-of-chiasmatic-sellar-and-anterior-cranial-fossa-tumors
#14
A G Alekseev, A A Pichugin, V I Danilov
OBJECTIVE: to analyze 31 resections of chiasmatic-sellar region (CSR) and anterior cranial fossa (ACF) tumors using the supraorbital trans-eyebrow approach (STA). MATERIAL AND METHODS: We analyzed medical histories of 31 patients who underwent tumor resection using STA in the period between October 2013 and April 2017. We analyzed the age and gender of patients, size and location of the tumor, presence of a neurological deficit, vision and olfactory functions before and after surgery, surgery duration, amount of intraoperative blood loss, rate of frontal sinus trephination and nasal liquorrhea, hemorrhagic and ischemic complications after surgery, Simpson grade of tumor resection, patient's condition before and after surgery (Glasgow Outcome Scale and Karnofsky Scale), and degree of patient satisfaction with the cosmetic result of surgery...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29068968/isolated-intraorbital-frontosphenoidal-synostosis
#15
Paul A Mittermiller, Kristen W Yeom, Robert M Menard
Unilateral anterior plagiocephaly is most commonly the result of deformational plagiocephaly or unilateral coronal synostosis, a premature fusion of the frontoparietal suture. However, other sutures within the coronal ring have been implicated in producing anterior cranial asymmetries. These fusions can occur in isolation or in concert with adjacent sutures. The frontosphenoidal suture is one such suture within the coronal ring that has been involved both concomitantly with and independently of frontoparietal suture fusion...
October 24, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29063272/the-learning-curve-for-endoscopic-trans-sphenoidal-resection-of-pituitary-macroadenomas-a-single-institution-experience-leeds-uk
#16
James M W Robins, Seyed A Alavi, Atul K Tyagi, Paul A Nix, Tom M Wilson, Nick I Phillips
BACKGROUND: The object of this study was to assess whether increasing operative experience results in greater endoscopic trans-sphenoidal resection of pituitary macroadenomas and lower complications. METHODS: A retrospective single institution cohort study was performed. Subjects underwent endoscopic trans-sphenoidal resection of pituitary macroadenoma between July 2009 and July 2016 by three neurosurgeons. Following data collection, statistical analysis compared percentage of tumor resection and length of hospital stay (LOS) with experience...
October 23, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29061457/3d-printed-craniosynostosis-model-a-new-simulation-surgical-tool
#17
Enrico Ghizoni, João Paulo Sant Ana Santos de Souza, Cassio Eduardo Raposo-Amaral, Rafael Denadai, Humberto Belém de Aquino, Cesar Augusto Raposo-Amaral, Andrei Fernandes Joaquim, Helder Tedeschi, Luís Fernando Bernardes, André L Jardini
BACKGROUND: Craniosynostosis is a complex disease once it involves deep anatomical perception, and a minor mistake during surgery can be fatal. The objective of this report is to present novel three-dimensional (3D)-printed polyamide craniosynostosis models that can improve the understanding and treatment complex pathologies. METHODS: The software InVesalius was used for segmentation of the anatomy image (from three patients between 6 and 9 months old). Afterward, the file was transferred to a Three-Dimensional Printing (3DP) system and, with the use of an infrared laser, slices of powder PA 2200 were consecutively added to build a polyamide model of cranial bone...
October 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29059790/meningocele-and-meningoencephalocele-of-the-lateral-wall-of-sphenoidal-sinus
#18
Matteo Zoli, Paolo Farneti, Michael Ghirelli, Marco Giulioni, Giorgio Frank, Diego Mazzatenta, Ernesto Pasquini
No abstract text is available yet for this article.
November 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29058485/accuracy-analysis-of-line-based-registration-for-image-guided-neurosurgery-at-different-operating-areas-a-phantom-study
#19
Dafeng Ji, Yuan Dong, Manning Wang, Zhijian Song
Space registration is the primary function of neuronavigation systems. According to the stage of the operation, the registration could be classified as rigid and non-rigid methods. Scientists have proposed three types of rigid registration methods: point-based registration (PBR), line-based registration (LBR), and surface-based registration (SBR). PBR has been widely used in clinical applications. Recently, LBR was proposed as a new spacing registration method. However, the range and accuracy of LBR are still not defined for clinical applications...
October 23, 2017: Computer Assisted Surgery (Abingdon, England)
https://www.readbyqxmd.com/read/29053078/contralateral-transmaxillary-corridor-an-augmented-endoscopic-approach-to-the-petrous-apex
#20
Chirag R Patel, Eric W Wang, Juan C Fernandez-Miranda, Paul A Gardner, Carl H Snyderman
OBJECTIVE The endoscopic endonasal approach (EEA) has been shown to be an effective means of accessing lesions of the petrous apex. Lesions that are lateral to the paraclival segment of the internal carotid artery (ICA) require lateralization of the paraclival segment of the ICA or a transpterygoid infrapetrous approach. In this study the authors studied the feasibility of adding a contralateral transmaxillary (CTM) corridor to provide greater access to the petrous apex with decreased need for manipulation of the ICA...
October 20, 2017: Journal of Neurosurgery
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