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https://www.readbyqxmd.com/read/28814902/orbital-apex-cyst-a-rare-cause-of-compressive-optic-neuropathy-post-functional-endoscopic-sinus-surgery
#1
Yi Ni Koh, Shu Fen Ho, Letchumanan Pathma, Harvinder Singh, Embong Zunaina
There are various causes that can lead to compressive optic neuropathy. We present here orbital apex cyst as an unusual cause of compressive optic neuropathy in a 49-year-old male. He presented with 2 weeks painless loss of vision in the left eye with left-sided headache. He had had left functional endoscopic sinus surgery for left nasal polyps 4 years earlier. Magnetic resonance imaging of brain and orbit revealed a left discrete orbital nodule, possibly orbital cyst or mucocele, which was compressing on the left optic nerve...
2017: International Medical Case Reports Journal
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/28798294/comparative-study-of-recessive-spherical-headed-silicone-intubation-and-endonasal-dacryocystorhinostomy-under-nasal-endoscopy-for-nasolacrimal-duct-obstruction
#4
Hui-Yi Deng, Tao Wang, Xue-Kun Huang, Qin-Tai Yang, Shi-Qi Ling, Wei-Hao Wang, Mei-Jiao Li, Fang-Qin Ning, Ge-Hua Zhang
Between July 2014 and November 2015, we compared the curative effects and cost-effectiveness of two kinds of nasal endoscopic surgery for nasolacrimal duct obstruction (NLDO) in a single-centre, two-armed clinical trial with a 1-year follow-up. We included two groups: a recessive spherical headed silicone intubation (RSHSI) group and an endonasal dacryocystorhinostomy (En-DCR) group; both received nasal endoscopy. Patients were recruited from the Otorhinolaryngology and Ophthalmology departments. The main outcome measures were epiphora improvement (classified as cure, effective, or invalid), cost-effectiveness, visual analogue scale (VAS) intraoperative pain score, bleeding volume, operating time, hospitalisation time, total cost, and VAS postoperative epiphora score...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28791062/success-rate-of-conventional-dacryocystorhinostomy-in-post-acute-dacryocystitis-compared-to-endonasal-dacryocystorhinostomy-in-acute-dacryocystitis
#5
Rajesh Subhash Joshi, Ajay Sharad Deshpande
PURPOSE: To determine the success rate of conventional dacryocystorhinostomy (DCR) and endoscopic DCR performed in patients with acute dacryocystitis. METHODS: Records of patients with acute dacryocystitis and operated during 2007-2008 were reviewed. Patients who completed a follow-up of 60 months were included in our study. Demographic characteristics, surgery types, success rate, and follow-up periods were recorded. Success was defined as the elimination of epiphora, absence of dacryocystitis, and negative syringing test result (i...
July 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28780715/innovation-in-neurosurgery-less-than-ideal-a-systematic-review
#6
REVIEW
I S Muskens, S J H Diederen, J T Senders, A H Zamanipoor Najafabadi, W R van Furth, A M May, T R Smith, A L Bredenoord, M L D Broekman
BACKGROUND: Surgical innovation is different from the introduction of novel pharmaceuticals. To help address this, in 2009 the IDEAL Collaboration (Idea, Development, Exploration, Assessment, Long-term follow-up) introduced the five-stage framework for surgical innovation. To evaluate the framework feasibility for novel neurosurgical procedure introduction, two innovative surgical procedures were examined: the endoscopic endonasal approach for skull base meningiomas (EEMS) and the WovenEndobridge (WEB device) for endovascular treatment of intracranial aneurysms...
August 6, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28776163/characteristics-of-meningitis-following-transsphenoidal-endoscopic-surgery-a-case-series-and-a-systematic-literature-review
#7
Pasquale Pagliano, Chiara Caggiano, Tiziana Ascione, Domenico Solari, Giusy Di Flumeri, Luigi Maria Cavallo, Fabio Tortora, Paolo Cappabianca
BACKGROUND: Meningitis occurs in 0.8-1.5% of patients undergoing neurosurgery. The aim of the study was to evaluate the characteristics of meningitis after endoscopic endonasal transsphenoidal surgery (EETS) comparing the findings retrieved to those highlighted by literature search. MATERIALS AND METHODS: Patients treated by EETS during an 18-year period in the Department of Neurosurgery of 'Federico II' University of Naples were evaluated and included in the study if they fulfilled criteria for meningitis...
August 3, 2017: Infection
https://www.readbyqxmd.com/read/28767609/sinonasal-renal-cell-like-adenocarcinoma-a-unique-variant-of-primary-clear-cell-carcinoma-of-the-head-and-neck-the-first-reported-case-in-korea
#8
Nah-Ihm Kim, Jung-In Yang, Sung-Sun Kim, Ji-Shin Lee, Sang-Chul Lim, Shin Jung, Jae-Hyuk Lee, Kyung-Sub Moon, Kyung-Hwa Lee
RATIONALE: Primary sinonasal renal cell-like adenocarcinoma (SNRCLA) is a rare and unique neoplasm. PATIENT CONCERNS: A 63-year-old man presented with repeated epistaxis, nasal obstruction and hyposmia of 2-month duration. Radiological studies revealed a mass of the left ethmoid sinus involving anterior skull base. DIAGNOSIS: The patient was treated with craniofacial resection, bifrontal craniotomy combined with an endonasal endoscopic approach...
August 2017: Medicine (Baltimore)
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/28764208/assessing-the-viability-of-hadad-flap-by-postoperative-contrast-enhanced-magnetic-resonance-imaging
#10
Hegde Jyotirmay, Sunil Kumar Saxena, A S Ramesh, K Nagarajan, Shreshta Bhat
INTRODUCTION: The Expanded Endonasal Approaches (EEAs) have been widely used for various skull base lesions. The reconstruction of the skull base defects is of vital importance to prevent postoperative complications. The vascular pedicled-nasoseptal flap (Hadad-Bassagasteguy flap) is used as a workhorse in reconstruction of majority of the defects. AIM: The purpose of this study was: (a) To assess the postoperative MRI appearance of vascularised pedicled nasoseptal flap for its viability; (b) To determine the variations in MRI that may suggest potential flap failure...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28758183/neuronavigation-guided-endoscopic-endonasal-excision-of-schwannoma-like-chordoma-of-the-meckel-s-cave-a-case-report
#11
Ali Akay, Sercan Göde, M Sedat Çağli
Chordomas are locally aggressive malignant tumors due to their recurrence potential, originating from the embryonic notochord remnants. Chordomas can originate anywhere on the axial skeleton. They are extradural and are spread by bone destruction. Chordomas are locally aggressive tumors which invade the dura mater, and may also present with secondary intradural growth. The Meckel's cave location of chordomas has been very rarely reported in the literature. Chordomas located in the Meckel's cave can be radiologically confused with trigeminal schwannomas...
June 14, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28754905/a-modified-preserved-nasal-and-lacrimal-flap-technique-in-endoscopic-dacryocystorhinostomy
#12
Wenyan Peng, Bowei Tan, Yandong Wang, Haiying Wang, Zhonghao Wang, Xuanwei Liang
Here we describe a modified preserved nasal and lacrimal mucosal flap technique in endonasal endoscopic dacryocystorhinostomy (EES-DCR) for patients with epiphora secondary to primary acquired nasolacrimal duct obstruction (PANDO) and evaluate its outcomes. Twenty-five patients with PANDO were retrospectively reviewed. Modified preserved nasal and lacrimal mucosal flap technique in EES-DCR was applied in all 27 eyes of 25 patients. The patients were evaluated with objective (anatomical patency) and subjective (symptomatic cure) success rates within the duration of follow-up...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28752696/learning-curve-for-endoscopic-endonasal-dacryocystorhinostomy
#13
Jong Joo Lee, Han Min Lee, Hyung Bin Lim, Seong Wook Seo, Hee Bae Ahn, Sung Bok Lee
PURPOSE: To elucidate the learning curve for endoscopic endonasal dacryocystorhinostomy (EE-DCR) based on the results of EE-DCR performed by three surgeons at three different tertiary hospitals. METHODS: A retrospective review of the medical records of 386 eyes of 337 patients who had undergone EE-DCR by three surgeons at three tertiary hospitals and who were available for a >6-month postoperative observation period was conducted. The success of a given surgery was determined based on the results of a test performed during the patient's last outpatient visit to the hospital...
August 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28749846/three-dimensional-radiologic-study-on-index-measurement-of-endonasal-endoscopic-optic-nerve-decompression
#14
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/28748855/clinical-characteristics-and-endoscopic-endonasal-removal-of-foreign-bodies-within-sinuses-orbit-and-skull-base
#15
Yi-Hui Wen, Wei-Jian Hou, Wen-Bin Lei, Feng-Hong Chen, Xiao-Lin Zhu, Zhang-Feng Wang, Ren-Qiang Ma, Wei-Ping Wen
BACKGROUND: Foreign bodies within the sinuses, orbit, and skull base (FBSOS) are rare; hence, diagnosis and management guidelines are lacking. Endoscopic sinus surgery (ESS) removal is preferred because of the less invasiveness and minimal morbidity. This study was designed to summarize clinical experience with ESS management of FBSOS. METHODS: We retrospectively reviewed clinical manifestations, imaging findings, treatment, and outcomes in consecutive patients with ESS removal of FBSOS between 2004 and 2015 at a tertiary academic medical center...
August 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28743389/cerebrospinal-fluid-leakage-and-chiari-i-malformation-with-gorham-s-disease-of-the-skull-base-a-case-report
#16
Hiroaki Nagashima, Katsu Mizukawa, Masaaki Taniguchi, Yusuke Yamamoto, Eiji Kohmura
BACKGROUND: Gorham's syndrome is a rare bone disorder characterized by massive osteolysis of unknown etiology. There are no reports of comorbidity involving cerebrospinal fluid (CSF) leakage and Chiari I malformation with Gorham's syndrome. Here, we report an unusual case of an acute presyrinx state complicated by bacterial meningitis due to CSF leakage and Chiari I malformation associated with Gorham's disease of the skull base. CASE PRESENTATION: A 25-year-old woman with Chiari I malformation associated with Gorham's syndrome presented with aggressive paresthesia following bacterial meningitis...
July 13, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28736350/antibiotic-prophylaxis-in-endoscopic-endonasal-pituitary-and-skull-base-surgery
#17
Laura Milanese, Matteo Zoli, Giacomo Sollini, Chiara Martone, Corrado Zenesini, Carmelo Sturiale, Paolo Farneti, Giorgio Frank, Ernesto Pasquini, Diego Mazzatenta
OBJECTIVE: Postoperative infection is a potentially dramatic consequence in endoscopic endonasal surgery. The aim of this study was to assess the efficacy of our intraoperative antibiotic prophylaxis by analyzing the risk factors of postoperative meningitis in our series. METHODS: Each endoscopic endonasal procedure performed since 1998 in patients with no preoperative infections and a follow-up longer than 30 days were included and retrospectively reviewed. Antibiotic protocol consisted in single antibiotic administration of ampicillin/sulbactam 3 g or cefazolin 2 g on induction; no postoperative administrations were performed after 2005...
July 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28731399/expanding-the-endoscopic-transpterygoid-corridor-to-the-petroclival-region-anatomical-study-and-volumetric-comparative-analysis
#18
Jacob L Freeman, Raghuram Sampath, Steven Craig Quattlebaum, Michael A Casey, Zach A Folzenlogen, Vijay R Ramakrishnan, A Samy Youssef
OBJECTIVE The endoscopic endonasal transmaxillary transpterygoid (TMTP) approach has been the gateway for lateral skull base exposure. Removal of the cartilaginous eustachian tube (ET) and lateral mobilization of the internal carotid artery (ICA) are technically demanding adjunctive steps that are used to access the petroclival region. The gained expansion of the deep working corridor provided by these maneuvers has yet to be quantified. METHODS The TMTP approach with cartilaginous ET removal and ICA mobilization was performed in 5 adult cadaveric heads (10 sides)...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28731395/nasoseptal-flap-necrosis-a-rare-complication-of-endoscopic-endonasal-surgery
#19
Joseph D Chabot, Chirag R Patel, Marion A Hughes, Eric W Wang, Carl H Snyderman, Paul A Gardner, Juan C Fernandez-Miranda
OBJECTIVE The vascularized nasoseptal flap (NSF) has become the workhorse for skull base reconstruction during endoscopic endonasal surgery (EES) of the ventral skull base. Although infrequently reported, as with any vascularized flap the NSF may undergo ischemic necrosis and become a nidus for infection. The University of Pittsburgh Medical Center's experience with NSF was reviewed to determine the incidence of necrotic NSF in patients following EES and describe the clinical presentation, imaging characteristics, and risk factors associated with this complication...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28725518/preferences-and-utilities-for-health-states-after-treatment-of-olfactory-groove-meningioma-endoscopic-versus-open
#20
Christopher M Yao, Alyssa Kahane, Eric Monteiro, Fred Gentili, Gelareh Zadeh, John R de Almeida
Objectives  The purpose of this study is to report health utility scores for patients with olfactory groove meningiomas (OGM) treated with either the standard transcranial approach, or the expanded endonasal endoscopic approach. Design  The time trade-off technique was used to derive health utility scores. Setting  Healthy individuals without skull base tumors were surveyed. Main Outcome Measures  Participants reviewed and rated scenarios describing treatment (endoscopic, open, stereotactic radiation, watchful waiting), remission, recurrence, and complications associated with the management of OGMs...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
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