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Base of skull surgery

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https://www.readbyqxmd.com/read/28735379/multidisciplinary-management-of-clival-chordomas-long-term-clinical-outcome-in-a-single-institution-consecutive-series
#1
Petter Förander, Jiri Bartek, Michael Fagerlund, Hamza Benmaklouf, Ernest Dodoo, Alia Shamikh, Pär Stjärne, Tiit Mathiesen
OBJECTIVE: Chordomas of the skull base have high recurrence rates even after radical resection and adjuvant radiotherapy. We evaluate the long-term clinical outcome using multidisciplinary management in the treatment of clival chordomas. METHODS: Between 1984 and 2015, 22 patients diagnosed with an intracranial chordoma were treated at the Karolinska University Hospital, Stockholm, Sweden. Sixteen of 22 were treated with Gamma Knife radiosurgery (GKRS) for tumour residual or progression during the disease course...
July 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28731395/nasoseptal-flap-necrosis-a-rare-complication-of-endoscopic-endonasal-surgery
#2
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/28731197/metastatic-gallbladder-carcinoma-in-meningioma-a-case-report
#3
Burak Eren, Feyza Karagoz Guzey, Ilker Gulec, Azmi Tufan
Metastases from tumors to systemic cancers are rare. The most common intracranial recipient tumor is meningioma. Metastasis from gallbladder cancer has been previously reported from only one patient during autopsy. We present the case of a 72-year-old woman who underwent surgery for right frontal skull base meningioma.The tumor was completely removed. Histological specimens showed gallbladder carcinomatous metastasis with diffuse neuroendocrine differentiation in meningothelial meningioma. The Ki-67 proliferation index of the meningioma was 3%...
June 2, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28729769/recurrence-and-cancerization-of-ameloblastoma-multivariate-analysis-of-87-recurrent-craniofacial-ameloblastoma-to-assess-risk-factors-associated-with-early-recurrence-and-secondary-ameloblastic-carcinoma
#4
Rong Yang, Zheqi Liu, Sandhya Gokavarapu, Canbang Peng, Tong Ji, Wei Cao
OBJECTIVE: The recurrence and progression of ameloblastoma are unpredictable. Therefore, we examined the influence of clinical factors on recurrence time and analyzed the clinical factors associated with early recurrence and cancerization. We then developed a staging system to predict early recurrence and cancerization. METHODS: All of the primary craniofacial ameloblastoma patients treated in Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine were recorded...
June 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28725517/preoperative-embolization-for-skull-base-meningiomas
#5
Kensuke Suzuki, Masaya Nagaishi, Yoshiyuki Matsumoto, Yoshiko Fujii, Yuki Inoue, Yoshiki Sugiura, Koji Hirata, Ryotaro Suzuki, Yosuke Kawamura, Ryuta Nakae, Yoshihiro Tanaka, Akio Hyodo
The results of preoperative embolization for skull base meningiomas were retrospectively evaluated to confirm the efficacy of this procedure. Skull base meningiomas that were treated with preoperative embolization were evaluated in 20 patients. The occluded arteries, embolic materials, treatment time, excision rate, neurologic manifestations, and complications were analyzed. The embolic material was 80% liquid, 30% coils, and 15% particles. The surgery was normally completed within 3 to 5 hours. Blood loss was normally approximately 250 mL, excluding four patients having the following conditions: malignant meningioma, a large tumor located on the medial side of the sphenoidal ridge, the petroclival tumor, and infiltrated tumor into the sigmoid sinus...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28716213/imaging-of-endoscopic-approaches-to-the-anterior-and-central-skull-base
#6
REVIEW
I M Schmalfuss
Sinonasal endoscopy for treatment of benign sinonasal diseases is a well-established procedure. Recent advances in endoscope technology have substantially expanded its application with many institutions now offering resection of skull base lesions and sinonasal malignancies via the endoscopic approach. Its minimally invasive nature leads to faster recovery time, better cosmetic results, and fewer complications. Unfortunately, not all lesions involving the sinonasal region and skull base are accessible to sinonasal endoscopy...
July 14, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28716164/collagen-matrix-as-an-inlay-in-endoscopic-skull-base-reconstruction
#7
G M Oakley, J M Christensen, M Winder, B P Jonker, A Davidson, T Steel, C Teo, R J Harvey
BACKGROUND: Multi-layer reconstruction has become standard in endoscopic skull base surgery. The inlay component used can vary among autografts, allografts, xenografts and synthetics, primarily based on surgeon preference. The short- and long-term outcomes of collagen matrix in skull base reconstruction are described. METHODS: A case series of patients who underwent endoscopic skull base reconstruction with collagen matrix inlay were assessed. Immediate peri-operative outcomes (cerebrospinal fluid leak, meningitis, ventriculitis, intracranial bleeding, epistaxis, seizures) and delayed complications (delayed healing, meningoencephalocele, prolapse of reconstruction, delayed cerebrospinal fluid leak, ascending meningitis) were examined...
July 18, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28713744/access-osteotomy-in-the-maxillofacial-skeleton
#8
REVIEW
K Kamalpathey, Maj Gen N K Sahoo, Col P K Chattopadhyay, Maj Yuvraj Issar
Surgical accesses for the facial skeleton are based on the concept of modular osteotomies. Various techniques and combination of osteotomies facilitate access to the most inaccessible tumors of craniomaxillofacial region. Most appropriate surgical access is determined by considering size, location, extension of the tumor, and experience of the surgical team. These are primarily used for tumors in the nasopharynx or the skull base. The aim of this paper is to review surgical accesses that aid in removal of inaccessible tumors of craniomaxillofacial region with series of cases operated in the Department of Oral and Maxillofacial Surgery, Armed Forces Medical College, Pune, India, between July 2008 and June 2010...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28707807/accuracy-of-computer-assisted-navigation-significant-augmentation-by-facial-recognition-software
#9
Jordan T Glicksman, Christine Reger, Arjun K Parasher, David W Kennedy
BACKGROUND: Over the past 20 years, image guidance navigation has been used with increasing frequency as an adjunct during sinus and skull base surgery. These devices commonly utilize surface registration, where varying pressure of the registration probe and loss of contact with the face during the skin tracing process can lead to registration inaccuracies, and the number of registration points incorporated is necessarily limited. The aim of this study was to evaluate the use of novel facial recognition software for image guidance registration...
July 14, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28700740/navigation-accuracy-after-automatic-and-hybrid-surface-registration-in-sinus-and-skull-base-surgery
#10
Tanja Daniela Grauvogel, Paul Engelskirchen, Wiebke Semper-Hogg, Juergen Grauvogel, Roland Laszig
OBJECTIVE: Computer-aided-surgery in ENT surgery is mainly used for sinus surgery but navigation accuracy still reaches its limits for skull base procedures. Knowledge of navigation accuracy in distinct anatomical regions is therefore mandatory. This study examined whether navigation accuracy can be improved in specific anatomical localizations by using hybrid registration technique. STUDY DESIGN: Experimental phantom study. SETTING: Operating room...
2017: PloS One
https://www.readbyqxmd.com/read/28692497/the-safety-and-accuracy-of-surgical-navigation-technology-in-the-treatment-of-lesions-involving-the-skull-base
#11
Bin Wei, Guowen Sun, Qingang Hu, Enyi Tang
OBJECTIVE: As compared with the normal anatomy, structures of the skull base and its surroundings have been dramatically altered of the lesion near the skull base. How to remove the lesion at the skull base was mainly depending on surgeon's personal experience during past years. In this study, the authors explored the safety and accuracy of the surgical navigation system in resecting lesions near the skull base. METHODS: The surgical cases consisted of 15 patients who underwent surgery involving the skull base with the using of surgical navigation technology...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28689974/endoscopic-surgery-for-sinonasal-tumors-the-transcribriform-approach
#12
R Thomas, P Martin, D Patrick, M Justin
Over the past 10 to 20 years, endoscopic endonasal surgery has become for many teams the preferred treatment for sinonasal tumors. Technical advances in the field of surgical instrumentation (good visualization, hemostasis…) and the progress of imaging guidance (to avoid neurovascular complication) has made those procedures simpler and safer. Nevertheless, endonasal endoscopic procedures require a trained surgical team of ENT specialist and neurosurgeon. Endoscopic endonasal surgery has been reported to be feasible for all types of sinonasal tumors whether benign tumors such as inverted papillomas, or malignant tumors...
July 8, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28689230/the-extended-transnasal-transsphenoidal-approach-for-anterior-skull-base-meningioma-considerations-in-patient-selection
#13
Joseph P Castlen, David J Cote, Hasan A Zaidi, Edward R Laws
PURPOSE: In this study, we set out to define our institutional criteria for patient eligibility for transsphenoidal resection of parasellar meningiomas, and to report our experience with extended transnasal approaches for these lesions. We aimed to discuss the important considerations of patient selection and risk stratification to optimize outcomes for patients with these difficult lesions, and also include considerations that should be reviewed during surgical approach selection. METHODS: Medical records from Brigham and Women's Hospital were retrospectively reviewed for all patients who underwent transsphenoidal surgery for pituitary disease with the senior author from April 2008 to March 2017 (938 procedures)...
July 8, 2017: Pituitary
https://www.readbyqxmd.com/read/28688556/pediatric-langerhans-cell-histiocytosis-of-the-lateral-skull-base
#14
Ananya Majumder, Cameron C Wick, Rebecca Collins, Timothy N Booth, Brandon Isaacson, J Walter Kutz
OBJECTIVE: Describe the presentation, imaging characteristics, management, and outcomes of pediatric patients with Langerhans cell histiocytosis (LCH) of the temporal bone. METHODS: A retrospective chart review was performed between 2000 and 2014 at a single tertiary care children's hospital. Fourteen patients were identified with a diagnosis of LCH and involvement of the temporal bone. RESULTS: Ten patients were female and ten were Caucasian...
August 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28686110/role-of-endoscopic-transnasal-surgery-for-skull-base-chondrosarcoma-a-retrospective-analysis-of-19-cases-at-a-single-institution
#15
Hirotaka Hasegawa, Masahiro Shin, Kenji Kondo, Shunya Hanakita, Akitake Mukasa, Taichi Kin, Nobuhito Saito
OBJECTIVE Skull base chondrosarcoma is one of the most intractable tumors because of its aggressive biological behavior and involvement of the internal carotid artery and cranial nerves (CNs). One of the most accepted treatment strategies for skull base chondrosarcoma has been surgical removal of the tumor in conjunction with proactive extensive radiation therapy (RT) to the original tumor bed. However, the optimal strategy has not been determined. The goal of this study was to evaluate the early results of endoscopic transnasal surgery (ETS)...
July 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28680389/post-mortem-validation-of-mri-identified-veins-on-the-surface-of-the-cerebral-cortex-as-potential-landmarks-for-neurosurgery
#16
Günther Grabner, Thomas Haider, Mark Glassner, Alexander Rauscher, Hannes Traxler, Siegfried Trattnig, Simon D Robinson
Background and Objective: Image-guided neurosurgery uses information from a wide spectrum of methods to inform the neurosurgeon's judgement about which tissue to resect and which to spare. Imaging data are registered to the patient's skull so that they correspond to the intraoperative macro- and microscopic view. The correspondence between imaging and optical systems breaks down during surgery, however, as a result of cerebro-spinal fluid drain age, tissue resection, and gravity-based brain shift. In this work we investigate whether a map of surface veins, automatically segmented from MRI, could serve as additional reference system...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28677936/impact-of-optic-canal-decompression-on-visual-outcome-in-subtotal-resected-skull-base-meningiomas
#17
Meike Unteroberdörster, Oliver Müller, Neriman Özkan, Daniela Pierscianek, Martin Hadamitzky, Bernadette Kleist, Ulrich Sure, Nicolai El Hindy
BACKGROUND: Visual impairment (VI) due to neoplastic infiltration of the optic canal (OC) is frequently seen in skull base meningiomas representing a significant restriction in patients` quality of life. However, the delicate anatomy of this region often prevents gross total tumor resection. The aim of the present study was to evaluate the impact of intradural OC decompression and postoperative oncological procedure on preservation of visual acuity in subtotal resected skull base meningiomas...
July 4, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28673886/newly-diagnosed-sellar-tumors-in-cancer-patients-a-diagnostic-challenge-and-management-dilemma
#18
Carlos R Goulart, Smita Upadhyay, Leo F S Ditzel Filho, Andre Beer-Furlan, Ricardo L Carrau, Luciano M Prevedello, Daniel M Prevedello
OBJECTIVE: The use of PET CT for staging in cancer patients and the widespread use of MRI led to an increased incidence of incidental sellar mass detection. The imaging findings can be suggestive of a benign pituitary tumor but metastasis can never be completely ruled out with non-invasive work-up. Appropriate diagnosis of these sellar masses is critical as the treatment paradigm might change in the presence of a pituitary metastasis. Moreover, definitive tissue diagnosis might prevent unnecessary radiotherapy to the skull base or even the need for systemic treatment when benign pituitary disease is confirmed...
June 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28667597/stereotactic-radiotherapy-as-primary-definitive-or-postoperative-treatment-of-intracranial-meningioma-of-who-grade-ii-and-iii-leads-to-better-disease-control-than-stereotactic-radiotherapy-of-recurrent-meningioma
#19
Dorota Lubgan, Sandra Rutzner, Ulrike Lambrecht, Karl Rössler, Michael Buchfelder, Ilker Eyüpoglu, Rainer Fietkau, Sabine Semrau
The aim of this study was to evaluate long-term clinical outcome, prognostic factors and quality of life after adjuvant or definitive fractionated stereotactic radiotherapy (SRT) of meningioma WHO grade II and III or at recurrence. 131 patients with 138 meningioma (64 WHO grade II, 16 WHO grade III, 58 without histology) of the skull base, falx and convexity were treated between 01/2002 and 01/2015 at the Erlangen University Hospital by fractionated stereotactic radiotherapy (SRT) as primary treatment (adjuvant or definitive) and at recurrence...
June 30, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28666652/osteosarcoma-of-the-skull-base-an-analysis-of-19-cases-and-literature-review
#20
Zhifei Guo, Ke Hu, Bing Zhao, Erbao Bian, Song Ni, Jinghai Wan
BACKGROUND: Osteosarcoma of the skull base is rarely observed; most published studies comprise case reports. The clinical features and optimal treatments have not been clearly established. The purpose of this article is to present 19 cases of skull base osteosarcoma and review the literature to analyse the clinical features and treatment of skull base osteosarcoma. METHODS: The clinical data of 19 patients with skull base osteosarcoma from January 2005 to December 2016 were retrospectively analysed; pertinent English literature from 1976 to 2016 was reviewed...
June 27, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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