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Journals Skull Base : Official Journal ...

Skull Base : Official Journal of North American Skull Base Society ... [et Al.]

https://read.qxmd.com/read/22547966/outcomes-of-temporal-bone-resection-for-locally-advanced-parotid-cancer
#1
JOURNAL ARTICLE
Saral Mehra, Luc G Morris, Jatin Shah, Mark Bilsky, Samuel Selesnick, Dennis H Kraus
This study was conducted to report outcomes and identify factors predictive of survival and recurrence in patients undergoing lateral temporal bone resection (LTBR) as part of an extended radical parotidectomy for parotid cancer. This is a retrospective cohort study which includes all patients undergoing LTBR for parotid cancer between 1994 and 2010 at two affiliated academic centers. Survival and recurrence rates were analyzed using the Kaplan-Meier method and Cox multivariate regression. A total of 12 patients with median follow-up duration of 30...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22547965/normal-life-expectancy-for-paraganglioma-patients-a-50-year-old-cohort-revisited
#2
JOURNAL ARTICLE
Jeanette de Flines, Jeroen Jansen, Reinier Elders, Maaike Siemers, Annette Vriends, Frederik Hes, Jean-Pierre Bayley, Andel van der Mey, Eleonora Corssmit
The objective of this study was to assess the long-term survival of patients with a paraganglioma of the head and neck compared with the survival of the general Dutch population. This historic cohort study was conducted using nationwide historical data of paraganglioma patients. We retrieved a cohort of 86 patients diagnosed with a paraganglioma of the head and neck between 1945 and 1960 in the Netherlands. Dates of death were retrieved from the national bureau of genealogy. Survival after diagnosis was compared with age and sex adjusted survival in the general population, by means of Wilcoxon signed rank test and Kaplan-Meier actuarial survival curves...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22547964/management-of-large-and-giant-vestibular-schwannomas
#3
JOURNAL ARTICLE
Irumee Pai, James Bowman, Nick Thomas, Neil Kitchen, Anthony Strong, Rupert Obholzer, Michael Gleeson
The study was conducted to analyze outcomes following surgical management of large and giant vestibular schwannomas and management options for residual disease. This retrospective case note study includes patients who had undergone microsurgical resection of sporadic, large, or giant vestibular schwannomas from 1986 to 2008. Tumors are classified as large if the largest extracanalicular diameter was 3.5 cm or greater and giant if 4.5 cm or greater. The study included 45 patients (33 large, 12 giant tumors), mean tumor size 4...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22547963/qualitative-and-quantitative-radio-anatomical-variation-of-the-posterior-clinoid-process
#4
JOURNAL ARTICLE
Asem Salma, Nishanta B Baidya, Benjamin Wendt, Francisco Aguila, Steffen Sammet, Mario Ammirati
This study was conducted to investigate the radiological anatomy of the posterior clinoid process (PCP) to highlight preoperative awareness of its variations and its relationships to other skull base landmarks. The PCPs of 36, three-dimensional computed tomographic cadaveric heads were evaluated by studying the gross anatomy of the PCP and by measuring the distances between the PCP and other skull base anatomical landmarks relevant to transnasal or transcranial skull base approaches. PCP variations were found in five specimens (14%): in two the dorsum sellae was absent, in one the PCP and the anterior clinoid process (ACP) were connected unilaterally and in two bilaterally...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22547962/comparison-between-manual-and-semiautomated-volumetric-measurements-of-pituitary-adenomas
#5
JOURNAL ARTICLE
Qasim Al Hinai, Kelvin Mok, Anthony Zeitouni, Bruno Gagnon, Abdul Razag Ajlan, Juan Rivera, Marc Tewfik, Denis Sirhan
Linear measurements have many limitations. The aim of this study is to compare manual and semiautomated volumetric measurements of pituitary adenomas. Magnetic resonance imaging (MRI) scans of 38 patients with pituitary adenomas were analyzed. Preoperative MRI was acquired on a 1.5 T. MRI volumes of the pituitary adenomas were obtained by two methods: manual (MA) and semiautomated (SA). The concurrent validity for SA and MA methods on 38 patients in the form of correlation coefficient was 0.97 (p < 0...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22547961/review-of-skull-base-reconstruction-using-locoregional-flaps-and-free-flaps-in-children-and-adolescents
#6
JOURNAL ARTICLE
Tomoyuki Yano, Kentarou Tanaka, Seiji Kishimoto, Hideo Iida, Mutsumi Okazaki
Tumors of the skull base are rare in children, and reconstruction in such patients has rarely been reported. We reviewed 16 cases of skull base reconstruction in patients under 18 years. The study group consisted of 10 boys and 6 girls, whose ages ranged from 2 to 17 years. Of the 16 cases, eight tumors were benign and eight were malignant. Defects were anterior in six cases, lateral in eight cases, and anterolateral in two cases. Reconstruction was performed with locoregional flaps in 11 cases and with free flaps in 5 cases...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22547960/multicompartmental-trigeminal-schwannomas-management-strategies-and-outcome
#7
JOURNAL ARTICLE
Dwarakanath Srinivas, Sampath Somanna, Chandramouli Bangalore Ashwathnarayana, Indira Devi Bhagavatula
Trigeminal schwannomas (TS), though the second most common intracranial schwannomas, represent only 0.8 to 8% of all Schwannomas. Advancement in imaging and microsurgical techniques has led to a remarkable improvement in the outcome of these benign tumors. Multicompartmental TS, though extensive, have an excellent outcome after surgery. In this article, we present our experience in the management of multicompartmental TS (types middle/posterior [MP], middle/extracranial [ME], and middle/posterior and extracranial [MPE]) and outcome in this rather uncommon group of tumors...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22547959/skull-base-surgery-for-the-management-of-deeply-invasive-scalp-cancer
#8
JOURNAL ARTICLE
Paul James Donald, James Boggan, D Gregory Farwell, Danny J Enepekides
Skin cancer involving the scalp is a common malignancy in the "sun belt areas of the United States." Most early lesions are well managed by primary care physicians and dermatologists. Occasionally we encounter basal cell, squamous cell, and rarely Merkel cell carcinomas that have failed local therapy and present with large tumors invading full thickness scalp, calvarium, and even underlying dura. We describe our experience with 52 such tumors and illustrate their resections and reconstruction. For full thickness lesions we generally do a wide field resection of skin and underlying calvarium followed by dural resection...
November 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451835/endoscopic-endonasal-infrasellar-approach-to-the-sellar-and-suprasellar-regions-technical-note
#9
JOURNAL ARTICLE
Alessandro Paluzzi, Juan C Fernandez-Miranda, Carlos Pinheiro-Neto, Victor Alcocer-Barradas, Beatriz Lopez-Alvarez, Paul Gardner, Carl Snyderman
We report a technical variation of the endoscopic endonasal approach to the sellar and suprasellar regions which relies on the use of a 45-degree angled endoscope. The so-called "infrasellar approach" aims at excising lesions situated within the intermediate and posterior lobes of the pituitary gland without damaging the anterior lobe, thus potentially minimizing endocrinological morbidity. In this regard the endoscopic infrasellar approach might be advantageous in selected cases when compared with the traditional transsphenoidal approach with the microscope...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451834/petrous-carotid-exposure-with-eustachian-tube-preservation-a-morphometric-elucidation
#10
JOURNAL ARTICLE
Anirban Deep Banerjee, Jai Deep Thakur, Haim Ezer, Prashant Chittiboina, Bharat Guthikonda, Anil Nanda
Inadvertent injury to eustachian tube leading to cerebrospinal fluid rhinorrhea is a known complication associated with drilling of Glasscock's triangle to expose the horizontal petrous internal carotid artery (ICA) for management of difficult tumors (especially malignant) or aneurysms at the cranial base. Contrary to the usual approach, we hypothesize that a "medial-to-lateral" approach to Glasscock's triangle drilling will minimize eustachian tube injury. Four formalin-fixed human cadaveric heads were dissected, and underwent appropriate morphometric analysis; yielding a total of eight datasets...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451833/repositioning-of-cranial-bone-flaps-cut-with-a-diamond-coated-threadwire-saw-5-year-experience-with-cosmetic-cranioplasty-without-fixation-devices
#11
JOURNAL ARTICLE
Satoru Shimizu, Koji Kondo, Tomoya Yamazaki, Kenji Nakayama, Isao Yamamoto, Kiyotaka Fujii
Artificial fixation systems for cranial bone flaps have problems related to their materials and designs. We developed an alternative technique for supratentorial craniotomy that employs a diamond-coated threadwire saw (diamond T-saw), originally developed for spinal surgery, and reduces the bone gap for fitted bone flap fixation. The study subjects were 77 adults undergoing elective supratentorial craniotomy. After placing a burr hole at each corner of the craniotomy, we performed osteotomy between adjacent burr holes to approximately one-third of the length of the osteotomy with a craniotome; this leaves a bony bridge at each corner...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451832/long-term-follow-up-of-microvascular-decompression-for-trigeminal-neuralgia
#12
JOURNAL ARTICLE
Chenur Oesman, Jan Jakob A Mooij
We conducted a study to evaluate the follow-up characteristics of patients with trigeminal neuralgia (TN) and to evaluate the factors affecting long-term outcome of microvascular decompression (MVD) in TN. Between 1983 and 2003, 156 patients with TN treated with MVD by 4 neurosurgeons at University Medical Centre Groningen/the Netherlands were evaluated. Baseline data from operative outcome were evaluated using univariate and multivariate analysis. The group consisted of 156 patients with TN: 90 females and 66 males with a median follow-up period of 9...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451831/fibrin-sealant-injection-an-aid-to-reduce-venous-bleeding-during-jugular-bulb-and-sigmoid-sinus-dissection-in-glomus-jugulare-jugulotympanic-paraganglioma-surgery
#13
JOURNAL ARTICLE
Richard James List, Sebastien Philippe Henry Thomas, Emad Shenouda, Dorothy Lang, Anne Davis, Nijaguna Mathad
Glomus jugulare (jugulotympanic paraganglioma) surgery requires tumor dissection in the region of the jugular bulb, upper internal jugular vein, and sigmoid sinus. Despite ligation or external compression of the sigmoid sinus proximally and ligation of the internal jugular vein distally, troublesome venous bleeding can arise from the inferior petrosal sinus or condylar veins at the medial wall of the jugular bulb. Excessive packing in this area can place the integrity of the lower cranial nerves at risk. We report a technique in which Tisseel(®) fibrin sealant is injected into the ligated sigmoid sinus and internal jugular vein...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451830/osseointegrated-implant-applications-in-cosmetic-and-functional-skull-base-rehabilitation
#14
JOURNAL ARTICLE
Brent J Benscoter, James J Jaber, Matthew L Kircher, Sam J Marzo, John P Leonetti
This study discusses the indications, outcomes, and complications in patients that underwent osseointegrated implantation for skull base rehabilitation. We conducted a retrospective review of eight patients with skull base defects who had undergone implantation of a facial prosthetic retention device ± bone-anchored hearing aid at a tertiary academic referral center. Descriptive analysis of applications, techniques, outcomes, and complications were reviewed. The majority of patients were males (n = 6) with previously diagnosed skull base malignancy (n = 5) with an average age of 46 (range, 14 to 77)...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451829/expectant-management-of-vestibular-schwannoma-a-retrospective-multivariate-analysis-of-tumor-growth-and-outcome
#15
JOURNAL ARTICLE
Mark Hughes, Christopher Skilbeck, Shakeel Saeed, Robert Bradford
We conducted a retrospective observational study to assess the consequences of conservative management of vestibular schwannoma (VS). Data were collected from tertiary neuro-otological referral units in United Kingdom. The study included 59 patients who were managed conservatively with radiological diagnosis of VS. The main outcome measures were growth rate and rate of failure of conservative management. Multivariate analysis sought correlation between tumor growth and (i) demographic features, (ii) tumor characteristics...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451828/secondary-trigeminal-neuralgia-in-cerebellopontine-angle-tumors
#16
JOURNAL ARTICLE
Yury Shulev, Alexander Trashin, Konstantin Gordienko
The analysis of the treatment results in patients with cerebellopontine angle (CPA) tumors, manifested as trigeminal neuralgia (TN). During the 10-year period from 1998 to 2008, 14 patients with verified CPA tumors that had the typical manifestations of TN were operated on at our hospital (5.8% from all patients with TN who underwent surgery). In nine cases the epidermoid was identified; three patients had meningioma, one patient had acoustic neurinoma, and one patient had lipoma. The follow-up of all patients lasted at least 12 months...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22451827/evaluation-of-three-cases-using-a-novel-titanium-mesh-system-skull-fit-with-orbital-wall-skull-fit-wow-for-cranial-base-reconstructions
#17
JOURNAL ARTICLE
Noriko Hattori, Hideo Nakajima, Ikkei Tamada, Yoshiaki Sakamoto, Takayuki Ohira, Kazunari Yoshida, Takeshi Kawase, Kazuo Kishi
Cranial base reconstructions associated with tumor resections around the orbital wall often require that both the upper and lateral orbital walls be reconstructed during a single procedure. Previously, we used titanium mesh plates that were preoperatively fabricated based on three-dimensional models. Although these plates are precise and do not increase the probability of infection, we still had to use autologous bones to reconstruct the orbital walls. Recently, we developed a new titanium mesh plate-called Skull-Fit(®)-with orbital wall (Skull-Fit WOW(®)), enabling us to reconstruct the cranial base and orbital walls without bone grafts...
September 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22470272/on-clivus-chordoma-is-it-enough-to-image-the-primary-site-skull-base-2010-20-111-113
#18
JOURNAL ARTICLE
Takehiko Yamaguchi
No abstract text is available yet for this article.
July 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22470271/harvey-cushing-s-approaches-to-tumors-in-his-early-career-from-the-skull-base-to-the-cranial-vault
#19
JOURNAL ARTICLE
Courtney Pendleton, Shaan M Raza, Gary L Gallia, Alfredo Quiñones-Hinojosa
In this report, we review Dr. Cushing's early surgical cases at the Johns Hopkins Hospital, revealing details of his early operative approaches to tumors of the skull base and cranial vault. Following Institutional Review Board approval, and through the courtesy of the Alan Mason Chesney Archives, we reviewed the Johns Hopkins Hospital surgical files from 1896 to 1912. Participants included four adult patients and one child who underwent surgical resection of bony tumors of the skull base and the cranial vault...
July 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
https://read.qxmd.com/read/22470270/comparison-of-intraoperative-portable-ct-scanners-in-skull-base-and-endoscopic-sinus-surgery-single-center-case-series
#20
JOURNAL ARTICLE
David B Conley, Bruce Tan, Bernard R Bendok, H Hunt Batjer, Rakesh Chandra, Douglas Sidle, Rudy J Rahme, Joseph G Adel, Andrew J Fishman
Precise and safe management of complex skull base lesions can be enhanced by intraoperative computed tomography (CT) scanning. Surgery in these areas requires real-time feedback of anatomic landmarks. Several portable CT scanners are currently available. We present a comparison of our clinical experience with three portable scanners in skull base and craniofacial surgery. We present clinical case series and the participants were from the Northwestern Memorial Hospital. Three scanners are studied: one conventional multidetector CT (MDCT), two digital flat panel cone-beam CT (CBCT) devices...
July 2011: Skull Base: Official Journal of North American Skull Base Society ... [et Al.]
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