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Base of skull surgery

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https://www.readbyqxmd.com/read/28418817/virtual-mapping-of-the-frontal-recess-guiding-safe-and-efficient-frontal-sinus-surgery
#1
Neil S Patel, Amy C Dearking, Erin K O'Brien, John F Pallanch
Objective To define relationships between the frontal sinus opening, ostia of other frontal recess cells, and endoscopic landmarks and to develop a clinically useful framework to guide frontal sinus surgery. Study Design Retrospective review. Setting Tertiary care academic referral center. Methods Adult patients with computed tomography (CT) without sinonasal pathology were included. Virtual endoscopy (using OsiriX) and corresponding CT reconstructions were used to identify all visible ostia in the frontal recess and characterize their positions in spaces between the uncinate/agger nasi (U), bulla ethmoidalis (EB), and middle turbinate (MT)...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28413552/trigeminocardiac-reflex-preceding-development-of-postoperative-superior-orbital-fissure-syndrome
#2
Rudrashish Haldar, Prakhar Gyanesh, Arun Srivastava, Guru Prasad Bettaswamy
The superior orbital fissure syndrome (SOFS) is a rare condition presenting as painful unilateral opthalmoplegia, ptosis, pupillary dilatation and anesthesia of the upper eyelid and forehead. It has been described after facial trauma. Other etiologies include infections, tumors or spontaneous hemorrhages in the retro-orbital space. Occurrence of SOFS after surgery in the skull base has not been described before. We recently encountered a case where a young female developed SOFS following surgery for cerebrospinal fluid (CSF) rhinorrhea...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413546/solitary-plasmacytoma-of-temporal-bone-a-rare-case-report
#3
Ritesh Kumar, Narendra Kumar, Sandeep Mohindro, B D Radotra
Solitary plasmacytoma of base of skull is a rare disease. It presents with headache, swelling, and other vague symptoms. Systemic work-up to rule out multiple myeloma is necessary. Radiotherapy is the treatment of choice. We, here, present a case of solitary plasmacytoma of base of skull in right temporal bone in a 50-year-old female treated with surgery and radiotherapy.
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413541/clival-giant-cell-tumor-a-rare-case-report-and-review-of-literature-with-respect-to-current-line-of-management
#4
Mohana Rao Patibandla, Amit Kumar Thotakura, Marabathina Nageswara Rao, Gokul Chowdary Addagada, Manisha Chowdary Nukavarapu, Manas Kumar Panigrahi, Shantiveer Uppin, Sundaram Challa, Srinivas Dandamudi
Giant-cell tumor (GCT) involving the skull base is rare. Sphenoid bone is the most commonly involved bone followed by petrous temporal bone. Histopathology and radiological features of these lesions are similar to GCT involving bone elsewhere. Unlike other sites, skull base is not an ideal site for the radical surgery. Hence adjuvant treatment has pivotal role. Radiation therapy with intensity-modulated radiation therapy, stereotactic radiosurgery or chemotherapy with adriamycin are promising as described in some case reports...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28412983/piezoelectric-technology-in-otolaryngology-and-head-and-neck-surgery-a-review
#5
C Meller, T E Havas
BACKGROUND: Piezoelectric technology has existed for many years as a surgical tool for precise removal of soft tissue and bone. The existing literature regarding its use specifically for otolaryngology, and head and neck surgery was reviewed. METHODS: The databases Medline, the Cochrane Central Register of Controlled Trials, PubMed, Embase and Cambridge Scientific Abstracts were searched. Studies were selected and reviewed based on relevance. RESULTS: Sixty studies were identified and examined for evidence of benefits and disadvantages of piezoelectric surgery and its application in otolaryngology...
April 17, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28412879/quantitative-analysis-of-transnasal-anterior-skull-base-approach-report-of-technology-for-intraoperative-assessment-of-instrument-motion
#6
Angelique M Berens, Richard Alex Harbison, Yangming Li, Randall A Bly, Nava Aghdasi, Manuel Ferreira, Blake Hannaford, Kris S Moe
OBJECTIVE: To develop a method to measure intraoperative surgical instrument motion. This model will be applicable to the study of surgical instrument kinematics including surgical training, skill verification, and the development of surgical warning systems that detect aberrant instrument motion that may result in patient injury. DESIGN: We developed an algorithm to automate derivation of surgical instrument kinematics in an endoscopic endonasal skull base surgery model...
April 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28409727/clival-chordomas-considerations-after-16-years-of-endoscopic-endonasal-surgery
#7
Matteo Zoli, Laura Milanese, Rocco Bonfatti, Marco Faustini-Fustini, Gianluca Marucci, Giovanni Tallini, Corrado Zenesini, Carmelo Sturiale, Giorgio Frank, Ernesto Pasquini, Diego Mazzatenta
OBJECTIVE In the past decade, the role of the endoscopic endonasal approach (EEA) has relevantly evolved for skull base tumors. In this study, the authors review their surgical experience with using an EEA in the treatment of clival chordomas, which are deep and infiltrative skull base lesions, and they highlight the advantages and limitations of this ventral approach. METHODS All consecutive cases of chordoma treated with an EEA between 1998 and 2015 at a single institution are included in this study. Preoperative assessment consisted of neuroimaging (MRI and CT with angiography sequences) and endocrinological, neurological, and ophthalmological evaluations, which were repeated 3 months after surgery and annually thereafter...
April 14, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28392037/next-generation-surgical-navigation-systems-in-sinus-and-skull-base-surgery
#8
REVIEW
Martin J Citardi, William Yao, Amber Luong
Over the past 25 years, rhinologists have adopted surgical navigation technology for endoscopic sinus and skull base procedures. Navigation systems often produce a wide target registration error (TRE). Ideally, next-generation systems will include a leap in target registration error reduce TRE through innovative hardware and software. Incorporation of microsensors will be another important innovation. Future systems are likely to include augmented reality, which can project overlays of critical anatomy on real-world endoscopic images...
April 6, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28389019/evolution-in-visualization-for-sinus-and-skull-base-surgery-from-headlight-to-endoscope
#9
REVIEW
Omar H Ahmed, Sonya Marcus, Richard A Lebowitz, Joseph B Jacobs
Rhinoscopy became a formal field of study in the mid-nineteenth century as improvements in nasal specula were made and the potent vasoconstrictive effects of cocaine on the intranasal tissues were discovered. Since then, a multitude of advances in visualization and illumination have been made. The advent of the Storz-Hopkins endoscope in the mid-twentieth century represents a culmination of efforts spanning nearly 2 centuries, and illumination has evolved concomitantly. The future of endoscopic sinus surgery may integrate developing technologies, such as 3-dimensional endoscopy, augmented reality navigation systems, and robotic endoscope holders...
April 4, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28387625/surgical-technique-and-results-of-cable-graft-interpositioning-of-the-facial-nerve-in-lateral-skull-base-surgeries-experience-with-213-consecutive-cases
#10
Sampath Chandra Prasad, Karthikeyan Balasubramanian, Enrico Piccirillo, Abdelkader Taibah, Alessandra Russo, Jingchun He, Mario Sanna
OBJECTIVE The aim in this study was to review the technique and outcomes of cable graft interpositioning of the facial nerve (FN) in lateral skull base surgeries. METHODS The authors retrospectively evaluated data from patients who had undergone cable graft interpositioning after nerve sacrifice during skull base tumor removal between June 1987 and May 2015. All patients had undergone lateral skull base approaches to remove tumors at a quaternary referral center in Italy. Facial nerve function was evaluated before and after surgery using the House-Brackmann (HB) grading system...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28387622/editorial-outcomes-of-facial-nerve-repair-using-nerve-grafts-applied-immediately-following-nerve-discontinuity-in-skull-base-surgery
#11
Sudheesh Ramachandran, Rajiv Midha
No abstract text is available yet for this article.
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28381325/ossifying-fibroma-of-the-maxilla-and-sinonasal-tract-case-series
#12
Jack J Liu, Lester D R Thompson, Agnieszka M Janisiewicz, Terry Y Shibuya, David B Keschner, Rohit Garg, Jivianne T Lee
BACKGROUND: Head and neck ossifying fibroma (OF) is a rare, benign, locally aggressive, fibro-osseous tumor. The mandible is the most common site of involvement, followed by the maxilla, and, less frequently, the sinonasal cavities, orbit, skull base, and calvarium. In this study, we aimed to expand our understanding of this entity by presenting a case series of OF that involved the maxilla and sinonasal tract. METHODS: A multicenter retrospective review was performed on all the patients with a diagnosis of OF from 2004 to 2013...
March 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28377255/safety-of-superior-petrosal-vein-sacrifice-during-microvascular-decompression-of-the-trigeminal-nerve
#13
Omar N Pathmanaban, Frazer O'Brien, Yahia Z Al-Tamimi, Charlotte L Hamerbeck-Ward, Scott A Rutherford, Andrew T King
BACKGROUND: Microvascular decompression (MVD) is a safe and effective treatment for trigeminal neuralgia (TGN). Cerebellar venous infarction is a complication associated with surgical sacrifice of the superior petrosal vein (SPV). The SPV intervenes between the trigeminal nerve and the surgeon. Optimal exposure of the cisternal trigeminal nerve, particularly at the brain stem, can be achieved by sacrificing the SPV. We analysed a cohort of 224 patients to determine the frequency of cerebellar venous infarction...
April 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28372815/application-of-ultrasonic-aspirators-in-rhinology-and-skull-base-surgery
#14
REVIEW
Dominic Vernon, Brian C Lobo, Jonathan Y Ting
Ultrasonic aspirators (UAs) are increasingly being used in rhinology and skull base surgery. The use of ultrasonic vibration for the removal of bony tissue transfers minimal heat to surrounding tissues and is relatively atraumatic to nearby soft tissue structures. This article details the development and application of this technology in septoturbinoplasty, endoscopic dacryocystorhinostomy (DCR), and skull base surgery. The benefits and limitations of UAs compared with conventionally powered instruments are discussed...
March 31, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28372814/endoscopic-skull-base-reconstruction-an-evolution-of-materials-and-methods
#15
REVIEW
Aaron C Sigler, Brian D'Anza, Brian C Lobo, Troy Woodard, Pablo F Recinos, Raj Sindwani
Endoscopic skull base surgery has developed rapidly over the last decade, in large part because of the expanding armamentarium of endoscopic repair techniques. This article reviews the available technologies and techniques, including vascularized and nonvascularized flaps, synthetic grafts, sealants and glues, and multilayer reconstruction. Understanding which of these repair methods is appropriate and under what circumstances is paramount to achieving success in this challenging but rewarding field. A graduated approach to skull base reconstruction is presented to provide a systematic framework to guide selection of repair technique to ensure a successful outcome while minimizing morbidity for the patient...
March 31, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28368506/multimodality-treatment-of-skull-base-chondrosarcomas-the-role-of-histology-specific-treatment-protocols
#16
Shaan M Raza, Paul W Gidley, Jeanne M Meis, David R Grosshans, Diana Bell, Franco DeMonte
BACKGROUND: Limited data exist to guide the multimodality management of chondrosarcomas (CSAs) arising in the skull base. OBJECTIVE: To determine the impact of histological subtype/grade on progression-free survival (PFS) and the indications for surgery, radiation, and chemotherapy based on histology. METHODS: A retrospective review was performed of 37 patients (conventional type: 81%, mesenchymal: 16.2%, dedifferentiated: 2.7%) treated at The University of Texas M...
March 29, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28365066/transcanal-endoscopic-approach-to-lesions-of-the-suprageniculate-ganglion-fossa
#17
Daniele Marchioni, Alessia Rubini, João Flávio Nogueira, Brandon Isaacson, Livio Presutti
OBJECTIVE: The aim of this paper would be to describe the first case series of exclusive transcanal endoscopic approach to treat lesions with limited extension at the suprageniculate fossa. This endoscopic approach allowed a complete removal of suprageniculate disesases with low complication rates using a minimally invasive surgical route. METHODS: This is a retrospective chart analysis and a surgery video recording review of these patients were performed in August 2015...
March 29, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28363833/postoperative-neurosurgical-infection-rates-after-shared-resource-intraoperative-magnetic-resonance-imaging-a-single-center-experience-with-195-cases
#18
Nikolaj Dinevski, Johannes Sarnthein, Flavio Vasella, Jorn Fierstra, Athina Pangalu, David Holzmann, Luca Regli, Oliver Bozinov
OBJECTIVE: To determine the rate of surgical site infections (SSI) in neurosurgical procedures involving a shared-resource intraoperative magnetic resonance imaging (ioMRI) scanner at a single institution derived from a prospective clinical quality management database METHODS: All consecutive neurosurgical procedures that were performed with a high-field, two-room ioMRI between April 2013 and June 2016 were included (N=195; 109 craniotomies and 86 endoscopic transsphenoidal procedures)...
March 28, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28362929/metastatic-liposarcoma-of-the-skull-base-a-case-report-and-review-of-literature
#19
Nirmeen Zagzoog, Greta Ra, Alex Koziarz, John Provias, Doron Sommer, Saleh A Almenawer, Kesava Reddy
BACKGROUND AND IMPORTANCE: Myxoid liposarcoma is not an uncommon form of sarcoma. However, it usually affects the lower extremity long bones. Scapular involvement is extremely rare, as is a metastasis to the parasellar region. We present a case of liposarcoma of the skull base originating in the scapular region and metastasizing to the sellar and parasellar regions and provide a review of the pertinent literature. CLINICAL PRESENTATION: A 43-year-old female patient diagnosed with left scapular myxoid liposarcoma was treated with surgical resection...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28361324/coffee-the-key-to-safer-image-guided-surgery-a-granular-jamming-cap-for-non-invasive-rigid-fixation-of-fiducial-markers-to-the-patient
#20
Patrick S Wellborn, Neal P Dillon, Paul T Russell, Robert J Webster
PURPOSE: Accurate image guidance requires a rigid connection between tracked fiducial markers and the patient, which cannot be guaranteed by current non-invasive attachment techniques. We propose a new granular jamming approach to firmly, yet non-invasively, connect fiducials to the patient. METHODS: Our granular jamming cap surrounds the head and conforms to the contours of the patient's skull. When a vacuum is drawn, the device solidifies in a manner conceptually like a vacuum-packed bag of ground coffee, providing a rigid structure that can firmly hold fiducial markers to the patient's skull...
March 30, 2017: International Journal of Computer Assisted Radiology and Surgery
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