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Endoscopic skull base surgery

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https://www.readbyqxmd.com/read/29897665/endocannabinoid-receptor-cb2r-is-significantly-expressed-in-aspirin-exacerbated-respiratory-disease-a-pilot-study
#1
Alessia Corrado, Monica Battle, Sarah K Wise, F Eun-Hyung Lee, David M Guidot, John M DelGaudio, Samuel A Molina, Joshua M Levy
BACKGROUND: The endocannabinoid system represents a highly conserved, innate signaling network with direct and indirect control of eicosanoid-mediated inflammation. Activation of the type 2 cannabinoid receptor (CB2R) leads to decreased type 2 inflammation and reduced production of arachidonic acid (AA). Given that altered AA metabolism is associated with aspirin-exacerbated respiratory disease (AERD), we hypothesized that expression of the CB2R gene CNR2 is increased in AERD. METHODS: Nasal polyps from consecutive patients undergoing endoscopic sinus surgery for AERD or allergic fungal rhinosinusitis (AFRS) were prospectively evaluated...
June 13, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29894455/investigation-of-distances-between-the-anterior-nasal-spine-and-nasofrontal-beak-basal-lamella-skull-base-and-sphenoid-sinus-on-paranasal-sinus-computed-tomography
#2
Yalcin Alimoglu, Adem Topcu
OBJECTIVE: The aim of this study was to investigate the distances between the anterior nasal spine and basal lamella (BL), skull base, nasofrontal beak (NfB), and the anterior wall of sphenoid sinus on computed tomography (CT) images. METHODS: A total of 160 patients who were seen at the otolaryngology clinic of our institution were evaluated with the help of the image processing software of the radiology department. Cases in which bony structures could not be seen clearly because of previous surgery or trauma were excluded...
June 11, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29886295/the-chopsticks-technique-for-endoscopic-endonasal-surgery-improving-surgical-efficiency-while-reducing-the-surgical-footprint
#3
Moujahed Labidi, Kentaro Watanabe, Shunya Hanakita, Hun Ho Park, Schahrazed Bouazza, Anne-Laure Bernat, Sébastien Froelich
INTRODUCTION: Variations and additions to the endoscopic endonasal exposure have been proposed around a "modular" strategy. These extensions are often necessary to provide additional working space and reduce conflict between the instruments and the endoscope. Resection of endonasal structures, which affects negatively the sinonasal quality of life (QOL), is thus undertaken not only to obtain tumor exposure but also to improve the maneuverability of the instruments. METHODS: Our objective was to achieve the same skull base exposures and tumor resections while limiting the surgical footprint on sinonasal structures and patients' QOL...
June 7, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29875594/navigation-assisted-endoscopic-endonasal-surgery-of-a-glomangiopericytoma-with-intraorbital-extension-a-case-report-and-literature-review
#4
Chan-Jung Chang, Chuan-Hung Sun, Tzu-Sheng Chen, Hung-Pin Wu
A glomangiopericytoma, or sinonasal type hemangiopericytoma, is a rare lesion which accounts for <0.5% of all sinonasal tumors. The mainstay treatment is wide excision. Instead of traditional open surgical approaches, such as midfacial degloving or lateral rhinotomy, we offer a case of 21-year-old male with diagnosis of glomangiopericytoma with skull base and intraorbital invasion and received navigation-assisted endoscopic excision of a glomangiopericytoma.
April 2018: Ci Ji Yi Xue za Zhi, Tzu-chi Medical Journal
https://www.readbyqxmd.com/read/29873260/from-above-or-from-below-that-is-the-question-comparison-of-the-supraorbital-approach-with-the-endonasal-approach-a-cadaveric-study
#5
Simone Peraio, Paul Chumas, Paul Nix, Nick Phillips, Atul Tyagi
BACKGROUND: Nowadays the endoscopic endonasal approach is increasingly being used to remove craniopharyngiomas, tuberculum sellae meningiomas and other presellar and parasellar lesions and its value in anterior skull base surgery is undisputed. Herein, we assess the relative advantages, disadvantages and feasibility of the keyhole eyebrow approach and the endonasal endoscopic approach in four cadaveric heads for the removal of presellar and parasellar lesions. METHODS: We used four cadaveric heads for 12 surgical dissections...
June 6, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29872915/plasma-rich-fibrin-in-neurosurgery-a-feasibility-study
#6
Tom Theys, Anais Van Hoylandt, Charlotte-Elise Broeckx, Laura Van Gerven, Joyce Jonkergouw, Marc Quirynen, Johannes van Loon
BACKGROUND: Cerebrospinal fluid (CSF) leakage represents an important and sometimes challenging complication in both cranial and spinal surgery. Current available options for dural closure pose inherent problems regarding safety, efficacy, immunogenicity, cost, and invasiveness. In this article, the use of leukocyte- and platelet-rich fibrin (L-PRF) derived from the patient's own blood is proposed to facilitate dural closure. We aim to describe the safety, feasibility, and applicability of L-PRF membranes and plugs in cranial and spinal neurosurgery...
June 6, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29858924/a-low-cost-and-stepwise-training-model-for-skull-base-repair-using-a-suturing-and-knotting-technique-during-endoscopic-endonasal-surgery
#7
Tao Xie, Xiaobiao Zhang, Ye Gu, Chongjing Sun, Tengfei Liu
PURPOSE: Cerebrospinal fluid leakage is always the primary complication during the endoscopic endonasal skull base surgery. Dural suturing technique may supply a rescue method. However, suturing and knotting in such a deep and narrow space are difficult. Training in the model can improve skills and setting a stepwise curriculum can increase trainers' interest and confidence. METHODS: We constructed an easy model using silicone and acrylic as sphenoid sinus and using the egg-shell membrane as skull base dura...
June 1, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29850916/endonasal-suturing-of-nasoseptal-flap-to-nasopharyngeal-fascia-using-the-v-loc%C3%A2-wound-closure-device-2-dimensional-operative-video
#8
Nathan T Zwagerman, Mathew N Geltzeiler, Eric W Wang, Juan C Fernandez-Miranda, Carl H Snyderman, Paul A Gardner
We present a case of cerebrospinal fluid (CSF) leak after endoscopic endonasal resection of a large clival chordoma in an obese patient. The leak was at the lower reconstruction at the craniocervical junction and had failed repositioning. Using the V-Loc™ wound closure device (Covidien, New Haven, Connecticut) to suture the nasoseptal flap to the nasopharyngeal fascia, a water-tight seal was created and, along with a lumbar drain, the patient healed successfully.CSF leak after an endoscopic endonasal approach (EEA) to intradural pathologies remains one of the more common complications...
May 30, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29799965/assessment-of-a-patient-specific-3-dimensionally-printed-endoscopic-sinus-and-skull-base-surgical-model
#9
Tsung-Yen Hsieh, Brian Cervenka, Raj Dedhia, Edward Bradley Strong, Toby Steele
Importance: Three-dimensional (3D) printing is an emerging tool in the creation of anatomical models for simulation and preoperative planning. Its use in sinus and skull base surgery has been limited because of difficulty in replicating the details of sinus anatomy. Objective: To describe the development of 3D-printed sinus and skull base models for use in endoscopic skull base surgery. Design, Setting, and Participants: In this single-center study performed from April 1, 2017, through June 1, 2017, a total of 7 otolaryngology residents and 2 attending physicians at a tertiary academic center were recruited to evaluate the procedural anatomical accuracy and haptic feedback of the printed model...
May 17, 2018: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29799278/endoscopic-repair-of-the-anterior-skull-base-is-there-a-learning-curve
#10
Paul Nix, Seyed A Alavi, Atul Tyagi, Nick Phillips
INTRODUCTION: Endoscopic anterior skull base surgery is now established practice. For skull base teams to manage complex pathology a variety of good dural repair techniques are required. However repairing certain skull base defects can be challenging. We look to see if a learning curve is associated with different types of CSF leaks in the anterior skull base Methods: Analysis of a prospectively collected database, contain 383 cases, on all endoscopic anterior skull base operations at one UK institution looking at CSF repair...
May 25, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29798378/-transnasal-endoscopic-surgery-of-communicating-neoplasm-outside-cerebral-dura-mater-and-orbital-fasciae
#11
C L Xu, J P Liang, Q T Lu, S J Zhang
Objective: This paper is intend to observe the feasibility of surgical approach with which communicating neoplasm outside cerebral dura mater and orbital fasciae was removed by transnasal endoscopic surgery. Method: Nine patients suffered from communicating neoplasm in the area of naso-orbital-cranio complex were treated with transnasal endoscopic surgery. The size of skull base bone defect was from 1.25 cm×1.13 cm to 3.25 cm×2.69 cm. No eye enucleation was done. No reconstructions of skull base and medial wall of orbital cavity were done...
August 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29798320/-removal-of-a-giant-ethmoidal-sinus-osteoma-with-orbital-extension
#12
W L Bai, G R Chai, Q Zhou, J X Li, Q H Xiang, T Li, T C Liu
Osteomas are slow growing bony tumors of the nasal sinuses. Ethmoid osteomas with orbital extension are unusual. Any surgical approach has to take into account protection of the vital structures, particularly the optic nerve and internal rectus muscle, skull base. A 65-year-old man, without past medical history, was referred to our hospital with a 1-month history of double vision and persisting pain around the left eye. Three-dimensional computed tomography (CT) revealed a large calcified dense mass measuring 32 mm × 25 mm × 25 mm in the left ethmoidal sinus with orbital extension...
December 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29790723/training-the-skull-base-surgeon-of-the-future-a-comprehensive-approach
#13
Mohammed Aref, A Samy Youssef
The tremendous advances in endoscopic skull base surgery added new a set of intricate less invasive approaches to the neurosurgical armamentarium. The new generations of neurosurgeons face the challenge of adopting the ever-changing technology and quickly learning modern surgical techniques beyond the traditional neurosurgery comfort zone. The future skull base surgeon must be well trained and knowledgeable in all surgical portals to the skull base in order to select the safest least invasive, most direct approach that offers the optimum exposure to handle a complex skull base pathology...
May 22, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29785412/horizontal-lateral-lamella-as-a-risk-factor-for-iatrogenic-cerebrospinal-fluid-leak-clinical-retrospective-evaluation-of-24-cases
#14
A Preti, F Mozzanica, R Gera, S Gallo, J Zocchi, F Bandi, G Guidugli, F Ambrogi, A Yakirevitch, A Schindler, A Dragonetti, P Castelnuovo, F Ottaviani
BACKGROUND: Several authors highlighted the limitations of the Keros classification system in predicting intracranial entry risk. Recently, our group proposed a new classification system based on the angle formed between the lateral lamella of the cribriform plate (LLCP) and the continuation of an horizontal plane passing through the cribriform plate (Gera classification). The aim of this study was to analyze whether the risk of iatrogenic cerebrospinal fluid leak (CSF-L) was better predicted by Keros or Gera classification...
May 22, 2018: Rhinology
https://www.readbyqxmd.com/read/29775030/-endoscopic-transnasal-approach-for-surgical-treatment-of-skull-base-clival-area-chordomas-report-of-2-cases
#15
J Ma, P Fang, D Wang, Y J Liu
The case 1 performanced submandibular trauma because of the faint Suddenly. There were no obvious abnormality in physical examination. CT result showed that the tumour located in the lower clivus, and the atlas was infringed. MRI imaging showed the tumour located in the both sides of the internal carotid artery, infringed clivus and atlas front, forwarded into the nasal cavity and oral cavity. The case 2 performanced the left nose stuffy and increased gradually, nasopharyngeal mirror showed the left nasal cavity filled with new life...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29772400/neuro-endoscope-for-skull-base-tumors
#16
REVIEW
Hua Gao, Chunhui Liu, Yazhuo Zhang
The endoscope has traditionally been used in neurosurgery to access a lesion within a natural body cavity. The challenge has been to access and resect deep-seated intraparenchymal lesions using a minimally invasive endoscopic technique. Endoscopic endonasal trans-sphenoidal surgery has gained increasing acceptance by otolaryngologists and neurosurgeons. Surgical procedures of the skull base include exposure, resection, and base reconstruction. These approaches start at the sphenoid sinus, which provides a reference point to important vascular and neural structures...
May 14, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29770288/infrasellar-endoscopic-endonasal-approach-for-a-pituitary-adenoma-extending-into-the-third-ventricle-with-anterior-displacement-of-the-pituitary-gland
#17
Georgios A Zenonos, Eric W Wang, Juan Carlos Fernandez-Miranda
Objectives  The current video presents the nuances of the infrasellar endoscopic endonasal approach for a pituitary adenoma extending into the third ventricle, with anterior displacement of the pituitary gland. Design  The video analyzes the presentation, preoperative workup and imaging, surgical steps and technical nuances of the surgery, the clinical outcome, and follow-up imaging. Setting  The patient was treated by a skull base team consisting of a neurosurgeon and an ENT surgeon at a teaching academic institution...
February 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765829/injury-of-the-carotid-artery-during-endoscopic-endonasal-surgery-surveys-of-skull-base-surgeons
#18
Nicholas R Rowan, Meghan T Turner, Benita Valappil, Juan C Fernandez-Miranda, Eric W Wang, Paul A Gardner, Carl H Snyderman
Objectives  This study aimed to review endoscopic skull base surgeon experience with internal carotid artery (ICA) injuries during endoscopic endonasal surgery (EES) to provide an estimate of the incidence of ICA injury, the associated factors and identify the best training modalities for the management of this complication. Design  Anonymous electronic survey of past participants at a well-established endoscopic skull base surgery course and a global online community of skull base surgeons. Main Outcome Measures  Relative incidence of ICA injuries during EES, associated anatomic and intraoperative factors, and surgeon experience...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765822/minimally-invasive-surgery-for-resection-of-parapharyngeal-space-tumors
#19
Irit Duek, Gill E Sviri, Salem Billan, Ziv Gil
Background  Surgical removal of parapharyngeal space tumors (PPST) poses challenges due to the complex anatomy of the region. PPSTs are routinely resected by a transcervical approach using blind finger dissection. Large PPSTs or those located high at the skull base, often require transmandibular or infratemporal fossa approaches, associated with considerable morbidity. Objective  Here, we describe an approach for PPST removal that comprises transcervical endoscopic, with or without transoral robotic technique...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29757560/-application-of-image-guided-technique-in-rhino-orbital-related-endoscopic-surgery
#20
Jin Mei Xue, Yuan Hui Li, Yan Ting Zhang, Fang Ling Guan, Li He Duan, Chang Qing Zhao
Objective: To review retrospectively six cases of rhino-orbital related endoscopic surgeries aided by Fusion electromagnetic system,to explore the indications and clinical value of image guided technique in endonasal endoscopic surgery. Method: Retrospective research methods were used.In this study,six cases of nasal endoscopic sinus surgery using Fusion electromagnetic system were analyzed,including 1 nasal penetrating foreign body,2 optic nerve decompressions,1 orbital apex hemangioma,1 sieve frontal sinus cyst,1 intraorbital mass biopsy...
January 20, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
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