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https://www.readbyqxmd.com/read/28813751/superior-ophthalmic-vein-thrombosis-the-role-of-anticoagulation
#1
Samuel Thomsen, Eric Larson, Michael Greenwood
PURPOSE: To report a case of superior ophthalmic vein thrombosis (SOVT) and review the available literature to assess if anticoagulation is warranted in all cases of SOVT. OBSERVATIONS: The patient presented to an outside hospital facility with a severe headache involving the left frontal temporal area. This progressed to left-sided ptosis and facial droop. Magnetic resonance imaging revealed a left SOVT secondary to sphenoid sinusitis. Treatment was initiated with vancomycin and cefepime, and the patient was transferred to our tertiary care center for further management...
May 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28808799/transorbital-endoscopic-approach-for-exposure-of-the-sylvian-fissure-middle-cerebral-artery-and-crural-cistern-an-anatomical-study
#2
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
#3
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
https://www.readbyqxmd.com/read/28798249/sight-preserving-orbital-decompression-a-novel-multidisciplinary-approach-to-managing-severe-proptosis-in-neurofibromatosis-type-2
#4
George Henry Lafford, Simon James Eccles, Jahrad Haq, Nara Orban
We describe the importance of collaboration between multiple surgical specialties in managing a complex case of sight-threatening severe proptosis in a young woman with type 2 neurofibromatosis (NF2) complicated by pre-existing contralateral blindness. Trans-nasal and lateral orbital surgical approaches were aided by stereotactic navigation to debulk a large frontal/sphenoid wing meningioma, which had been exerting pressure onto the right globe and optic nerve. The patient made an excellent postoperative recovery along with preserved residual visual acuity, normal neurology and a good aesthetic outcome...
August 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28797173/sphenoid-sinus-barotrauma-in-diving-case-series-and-review-of-the-literature
#5
Jochen D Schipke, Sinclair Cleveland, Markus Drees
About 50% of scuba divers have suffered from barotrauma of the ears and about one-third from barotrauma of paranasal sinuses. The sphenoid sinuses are rarely involved. Vital structures, as internal carotid artery and optic nerve, adjoin the sphenoid sinus. Thus, barotrauma could lead to serious neurologic disorders, including blindness. After searching the literature (Medline) and other sources (Internet), we present some cases of sphenoid sinus barotrauma, because these injuries may be underreported and misdiagnosed due to the lack of awareness and knowledge...
August 10, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28790098/orbital-multiple-myeloma-a-diagnostic-challenge
#6
Evelyn Tai, See Khim Sim, Juhara Haron, Wan-Hazabbah Wan Hitam
Orbital involvement in multiple myeloma is unusual. We describe the case of an 85-year-old woman who presented with right eye proptosis, reduced visual acuity and diplopia. Computed tomography showed a lobulated, enhancing soft tissue mass arising from the right greater wing of the sphenoid with intraconal, lacrimal gland and ocular muscle involvement. Histopathology revealed predominantly atypical plasma cells in a background of reactive lymphocytes, with monoclonality towards kappa light chain protein, suggestive of multiple myeloma...
August 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28770205/fatal-mycotic-aneurysm-of-the-basilar-artery-caused-by-aspergillus-fumigatus-in-a-patient-with-pituitary-adenoma-and-meningitis
#7
Martin Winterholler, Roland Coras, Walter Geißdörfer, Rudolf Rammensee, Philipp Gölitz, Christian Bogdan, Roland Lang
Fungal infections of the central nervous system (CNS) frequently occur in immunosuppressed patients. Here, we describe the case of an immunocompetent 64-year-old man who presented with diplopia, right-sided hemiparesis, and a mild headache after cleaning and replacing nesting boxes of wild birds during the preceding months. Lumbar puncture revealed pleocytosis, elevated protein, and lactate levels in the cerebrospinal fluid (CSF). Initial imaging showed ischemia in the left thalamus and an enlargement of the sellar region...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28766959/pediatric-chronic-rhinosinusitis-management-in-rhinologists-and-pediatric-otolaryngologists
#8
Daniel M Beswick, Anna H Messner, Peter H Hwang
OBJECTIVE: To compare the management of pediatric chronic rhinosinusitis (PCRS) between members of the American Rhinologic Society (ARS) and the American Society of Pediatric Otolaryngology (ASPO). STUDY DESIGN: Comparison of surveys. METHODS: A web-based survey was distributed to ASPO membership twice in September-October 2016. Data were compared to previously published data from ARS membership in March-April 2016. RESULTS: ASPO survey completion rate was 22%...
September 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28765065/reconstructive-outcome-of-intraoperative-cerebrospinal-fluid-leak-after-endoscopic-endonasal-surgery-for-tumors-involving-skull-base
#9
Chi-Man Jeon, Sang Duk Hong, Ho Jun Seol, Jung-Il Lee, Do-Hyun Nam, Yoon Jung Hwang, Doo-Sik Kong
Endoscopic transnasal surgery for tumors located at the base of the skull has a high incidence of postoperative cerebrospinal fluid (CSF) leaks. Here, we assessed the repair outcomes for high-flow CSF leaks based upon the tumor location, and analyzed the reasons for repair failure after transnasal endoscopic surgery solely for tumors involving the base of the skull. From Feb. 2009 to Dec. 2014 we performed endoscopic endonasal surgery for a variety of skull base lesions in 788 patients at our institution. Among them, 95 patients with intradural skull base tumors underwent endoscopic transnasal surgery...
July 29, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28761508/sphenoid-wing-en-plaque-meningioma-development-following-craniopharyngioma-surgery-and-radiotherapy-radiation-induced-after-three-decades
#10
REVIEW
Amol Raheja, Guru Dutta Satyarthee
Radiation therapy is widely used as adjuvant or primary treatment modality of neoplastic lesions. Radiation therapy may cause an acute adverse effect such as brain edema, radiation necrosis, or delayed, for example, panhypopituitarism, vasculitis, and rare de-novo neoplasm development. However, radiation-induced meningioma (RIM) occurrence is extremely rare. A detailed PubMed and Medline search yielded only three isolated Case-reports of RIM development in craniopharyngioma cases receiving radiotherapy after surgery...
July 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28758185/cystic-chordoma-of-cavernous-sinus
#11
Prashant Sathe, Amit Mahore, Aadil Chagla
Chordomas are the tumors commonly involving base of skull which are predominantly solid in consistency. A cystic chordoma of cavernous sinus is an extremely rare entity and has never been reported. We report a 26- year-old male presenting with gradually progressive right sided sixth nerve palsy and headache. Computerized tomography (CT) scan and Magnetic resonant imaging (MRI ) scan of brain showed a cystic lesion in right cavernous sinus.Patient was successfully treated using transnasal endoscopic trans-sphenoidal approach ...
June 14, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28756096/endoscopic-contralateral-transmaxillary-approach-for-pterygoid-process-osteotomy-in-total-maxillectomy-a-technical-case-report
#12
Toyoyuki Hanazawa, Kazuki Yamasaki, Hideaki Chazono, Yoshitaka Okamoto
An approach for total maxillectomy with endoscopic transection of the pterygoid process via the contralateral maxillary sinus is described. In total maxillectomy, the resection of the pterygoid process of the sphenoid is a key step for successful resection. However, a conventional craniofacial approach requires extensive incision in the face, elevation of the lateral cheek flap. Even after elevation of the lateral cheek flap, visualization of this region is not good. An endoscopic approach through the contralateral maxillary sinus improved visualization of the pterygoid process, and osteotomy using a diamond-drilling bar was successfully performed...
July 26, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28755036/a-pilot-study-for-segmentation-of-pharyngeal-and-sino-nasal-airway-subregions-by-automatic-contour-initialization
#13
Bala Chakravarthy Neelapu, Om Prakash Kharbanda, Viren Sardana, Abhishek Gupta, Srikanth Vasamsetti, Rajiv Balachandran, Shailendra Singh Rana, Harish Kumar Sardana
PURPOSE: The objective of the present study is to put forward a novel automatic segmentation algorithm to segment pharyngeal and sino-nasal airway subregions on 3D CBCT imaging datasets. METHODS: A fully automatic segmentation of sino-nasal and pharyngeal airway subregions was implemented in MATLAB programing environment. The novelty of the algorithm is automatic initialization of contours in upper airway subregions. The algorithm is based on boundary definitions of the human anatomy along with shape constraints with an automatic initialization of contours to develop a complete algorithm which has a potential to enhance utility at clinical level...
July 28, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28751182/unilateral-blindness-after-orthognathic-surgery-hypotensive-anaesthesia-is-not-the-primary-cause
#14
Á Rodríguez-Navarro, F M Gonzalez-Valverde
Perioperative vision loss in non-ocular surgery represents a rare but devastating complication and multiple causes have been proposed. Any portion of the visual system may be involved and several authors have tried to relate that complication with deliberate hypotension anaesthetic technique, used to control intraoperative bleeding. We report a patient operated for orthognathism who suffered unilateral blindness. After review of similar cases, we can state that the transmission of forces generated during Le fort I osteotomy is related to the complication...
July 24, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28749846/three-dimensional-radiologic-study-on-index-measurement-of-endonasal-endoscopic-optic-nerve-decompression
#15
Yao Zhao, Haobo Duan, Jianming Liu, Kailiang Cheng, Yingying Han, Youqiong Li
OBJECTIVE: To provide the radiologic basis for the clinical application of endonasal endoscopic optic nerve decompression (EEOND). METHODS: CTA images were used to observe the optic canal (OC) and related structures of 60 patients (120 sides) with normal nasal, paranasal sinuses, OC, and other related structures. RESULTS: Optic canal could be classified as: the canal (10 sides, 8.33%), the semicanal (25 sides, 20.83%), the impression (49 sides, 40...
July 26, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28739401/a-review-of-nasal-paranasal-and-skull-base-tumors-invading-the-orbit
#16
REVIEW
Morten Jørgensen, Steffen Heegaard
Tumors that invade the orbit are uncommon. The majority are meningiomas arising from the sphenoid ridge (66 %). Others are bone and cartilage tumors arising from the surrounding bones surrounding the orbit, pituitary adenomas, and epithelial tumors arising from the paranasal sinuses and nasal cavity. Meningiomas occur more often in females, whereas epithelial tumors have a predilection for males. Meningiomas and epithelial tumors typically present in the sixth decade of life, whereas bone tumors tend to affect individuals in their third decade of life...
July 21, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28736351/intraoperative-ultrasound-in-patients-undergoing-transsphoidal-surgery-for-pituitary-adenoma-a-systematic-review
#17
REVIEW
Hani J Marcus, Tom Vercauteren, Sebastien Ourselin, Neil L Dorward
BACKGROUND: Transsphenoidal surgery is the gold standard for pituitary adenoma resection. However, despite advances in microsurgical and endoscopic techniques, some pituitary adenomas can be challenging to cure. OBJECTIVE: To determine whether, in patients undergoing transsphenoidal surgery for pituitary adenoma, intraoperative ultrasound is a safe and effective technological adjunct. METHODS: The PubMed database was searched between January 1996 and January 2016 to identify relevant publications that (1) featured patients undergoing transsphenoidal surgery for pituitary adenoma, (2) used intraoperative ultrasound, and (3) reported on safety or effectiveness...
July 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28735137/endonasal-operative-corridor-expansion-by-sphenoidal-pneumosinus-dilatans-in-tuberculum-sellae-meningiomas
#18
Amol Raheja, Michael Karsy, Ilyas Eli, Jian Guan, William T Couldwell
A retrospective cohort study of patients with tuberculum sellae meningioma (TSM)-associated sphenoidal pneumosinus dilatans (PSD) over a recent epoch was evaluated using a propensity-matched morphometric analysis. A total of 38 patients with TSM and sphenoidal PSD were identified and matched by age and sex to 32 patients without tumors (controls). Overall, no significant difference between test and control groups was noted in sphenoid sinus size or other parameters; however, significantly greater mean distance from the posterior margin of the planum sphenoidale to the diaphragma sella (0...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28729182/correlation-of-quantitative-mr-imaging-findings-with-symptoms-in-patients-with-incidentally-detected-inflammatory-sinonasal-disease
#19
O Kilickesmez, O Onerci Celebi, M Yalcinkaya, A R Gokduman, Y Karagoz, O Yigit
PURPOSE: To assess the relationships between mucosal thickness, T1-weighted, T2-weighted signals and restricted diffusion on magnetic resonance imaging (MRI) with the degree of symptoms in patients with incidentally detected inflammatory sinonasal disease. MATERIALS AND METHODS: Conventional and diffusion-weighted MRI of 100 patients with incidental sinonasal mucosal thickening were prospectively evaluated. There were 53 men and 47 women, with a mean age of 44.6 years±15...
July 17, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28728241/-petrous-bone-cholesteatoma-surgery-approach-and-outcomes
#20
R Y Wang, W J Han, T Zhang, W D Shen, J Liu, P Dai, S M Yang, D Y Han
Objective: To investigate the choice of surgical approach of petrous bone cholesteatoma (PBC)and surgical outcomes. Methods: A retrospective study was performed on 90 patients diagnosed and treated for PBC from January 2000 to December 2014 by the Chinese People's Liberation Army General Hospital otolaryngologists. According to Sanna's classification, 40 out of the 90 cases were supralabyrinthine, five infralabyrinthine, four infralabyrinthine-apical, 25 massive and 16 apical. Five cases underwent transmastoid and retrolabyrinthine approach, translabyrinthine approach was performed on six patients, 19 cases underwent subtotal petrosectomy, seven cases underwent transotic approach, 41 cases underwent middle fossa approach, combined transmastoid/middle fossa approach was performed on 11 cases, translabyrinthine and sphenoid sinus approach were performed on one case...
July 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
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