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https://www.readbyqxmd.com/read/29454124/brainstem-dose-constraints-in-non-isometric-radiosurgical-treatment-planning-of-trigeminal-neuralgia-a-single-institution-experience
#1
Michael Zhang, Layton A Lamsam, Matthew K Schoen, Swapnil S Mehta, Geoffrey Appelboom, John K Adler, Scott G Soltys, Steven D Chang
INTRODUCTION: CyberKnife stereotactic radiosurgery (SRS) for trigeminal neuralgia (TGN) administers non-isometric, conformational high-dose radiation to the trigeminal nerve with risk of subsequent hypoesthesia. METHODS: We performed a retrospective, single-institution review of 66 TGN patients, treated by CyberKnife, to compare outcomes from two distinct treatment periods (standard dosing, N = 38 and reduced dosing, N = 28). Standard and reduced dosing permitted a maximum brainstem dose of 45 Gy and 25 Gy, respectively, each with a prescription dose of 60 Gy...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29452326/awake-microvascular-decompression-for-trigeminal-neuralgia-concept-and-initial-results
#2
Saleem I Abdulrauf, Jorge F Urquiaga, Ritesh Patel, J Andrew Albers, Varun B Sampat, Meghan Baumer, Eric Marvin, Matthew Pierson, Raquel Kragel, Jodi Walsh
OBJECTIVE: The option of performing MVD under awake anesthesia protocol ("awake" MVD) was examined in this initial series to assess whether intraoperative pain evaluation can identify and mitigate insufficient decompression of the trigeminal nerve, improving surgical outcomes. Additionally, "awake" MVD could expand procedure indications for those with comorbidities that would prohibit general endotracheal anesthesia (GEA). METHODS: An IRB-approved prospective study of 10 consecutive adults who underwent MVD for TN was conducted...
February 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29413360/a-sixteen-week-three-armed-randomized-controlled-trial-investigating-clinical-and-biochemical-effects-of-targeted-alterations-in-dietary-linoleic-acid-and-n-3-epa-dha-in-adults-with-episodic-migraine-study-protocol
#3
John Douglas Mann, Keturah R Faurot, Beth MacIntosh, Olafur S Palsson, Chirayath M Suchindran, Susan Ann Gaylord, Chanee Lynch, Angela Johnston, Kristen Maiden, David A Barrow, Joseph R Hibbeln, Christopher E Ramsden
Migraine is a prevalent neurological disorder, affecting over 16% of adult women and 7% of adult men in the U.S., causing significant pain, disability, and medical expense, with incomplete benefits from conventional medical management. Migraine, as a chronic pain syndrome, provides a practical model for investigating the impact of dietary modifications in omega-3 (n-3) and omega-6 (n-6) fatty acids. This paper reports the protocol of a trial to assess whether targeted dietary modifications designed to increase n-3 eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), with or without concurrent reduction in n-6 linoleic acid (LA), will alter nociceptive lipid mediators and mediate decreases in frequency and severity of migraine...
January 2018: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29397449/the-timing-of-stereotactic-radiosurgery-for-medically-refractory-trigeminal-neuralgia-the-evidence-from-diffusion-tractography-images
#4
Cheng-Chia Lee, Shin Tai Chong, Ching-Jen Chen, Sheng-Che Hung, Huai-Che Yang, Chung-Jung Lin, Chih-Chun Wu, Wen-Yuh Chung, Wan-Yuo Guo, David Hung-Chi Pan, Hsiu-Mei Wu, Jason P Sheehan, Ching-Po Lin
BACKGROUND: Diffusion tensor imaging (DTI) is a novel MRI technique that enables noninvasive evaluation of microstructural alterations in white matter of brain. Initially, DTI was used in intra- or inter-hemispheric association bundles. Recent technical advances are overcoming the challenges of imaging small white matter bundles, such as the cranial nerves. In this study, we use DTI to shed more light on the microstructure changes in long-standing trigeminal neuralgia. We also utilize DTI to study the effect of early stereotactic radiosurgery (SRS) on the microstructures of the trigeminal nerve and to predict the effectiveness of early SRS in the treatment of medically refractory trigeminal neuralgia (TN)...
February 3, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29371169/early-stereotactic-radiosurgery-for-medically-refractory-trigeminal-neuralgia
#5
Cheng-Chia Lee, Ching-Jen Chen, Shin Tai Chong, Sheng-Che Hung, Huai-Che Yang, Chung Jung Lin, Chih-Chun Wu, Wen-Yuh Chung, Wan-Yuo Guo, David Hung-Chi Pan, Hsiu-Mei Wu, Ching-Po Lin
OBJECTIVE: To evaluate the effectiveness of early GKRS in the treatment of medically refractory trigeminal neuralgia (TN). METHODS: This retrospective review covers 108 consecutive patients presenting with medically refractory, idiopathic TN between 2006 and 2014. All patients underwent gamma knife radiosurgery (GKRS) treatment targeting the root entry zone (REZ) with median maximum dose of 90 Gy and isodose line of 20%. Outcomes pertaining to pain and facial numbness were scored using the Barrow Neurological Institute (BNI) pain and facial numbness scales, respectively...
January 22, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29351673/the-barrow-neurological-institute-grading-scale-as-a-predictor-for-delayed-cerebral-ischemia-and-outcome-after-aneurysmal-subarachnoid-hemorrhage-data-from-a-nationwide-patient-registry-swiss-sos
#6
Marian Christoph Neidert, Nicolai Maldaner, Martin Nikolaus Stienen, Michel Roethlisberger, Daniel W Zumofen, Donato D'Alonzo, Serge Marbacher, Rodolfo Maduri, Isabel Charlotte Hostettler, Bawarjan Schatlo, Michel M Schneider, Martin A Seule, Daniel Schöni, Johannes Goldberg, Christian Fung, Marta Arrighi, Daniele Valsecchi, Philippe Bijlenga, Karl Schaller, Oliver Bozinov, Luca Regli, Jan-Karl Burkhardt
BACKGROUND: The Barrow Neurological Institute (BNI) scale is a novel quantitative scale measuring maximal subarachnoid hemorrhage (SAH) thickness to predict delayed cerebral ischemia (DCI). This scale could replace the Fisher score, which was traditionally used for DCI prediction. OBJECTIVE: To validate the BNI scale. METHODS: All patient data were obtained from the prospective aneurysmal SAH multicenter registry. In 1321 patients, demographic data, BNI scale, DCI, and modified Rankin Scale (mRS) score up to the 1-yr follow-up (1FU) were available for descriptive and univariate statistics...
January 17, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29305127/7-0tesla-mri-tractography-in-patients-with-trigeminal-neuralgia
#7
Hyeong Cheol Moon, Soon-Tae You, Hyeon Man Baek, Young Jai Jeon, Chan-A Park, Jei Jun Cheong, Youn Joo Lee, Young Seok Park
7.0Tesla(T) high-resolution diffusion tensor imaging (DTI) can supply information on changing microstructures in cranial nerves. We investigated DTI parameters and the feasibility of DTI criteria for diagnosing trigeminal neuralgia (TN). In this study, 14 patients (28 hemispheres) of mean age 49.0years (range, 31-64) with TN underwent DTI using 7.0TMRI. We compared fractional anisotropy (FA), axial diffusivity (AD), mean diffusivity (MD), and radial diffusivity (RD) of affected-side and unaffected-side trigeminal nerves using DTI...
January 2, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29174233/effectiveness-of-gamma-knife-radiosurgery-in-improving-psychophysical-performance-and-patient-s-quality-of-life-in-idiopathic-trigeminal-neuralgia
#8
Filippo Gagliardi, Alfio Spina, Michele Bailo, Nicola Boari, Andrea Cavalli, Alberto Franzin, Arianna Fava, Antonella Del Vecchio, Angelo Bolognesi, Pietro Mortini
OBJECTIVE: To assess effectiveness of Gamma Knife Radiosurgery (GKRS) in improving quality of life (QoL) in patients with idiopathic trigeminal neuralgia (TN). METHODS: Between January 2001 and October 2013, 166 patients with medically resistant TN were treated at our Institution with GKRS. Patients were divided into two groups: TTN (typical trigeminal neuralgia) and ATN (atypical trigeminal neuralgia) patients. All patients underwent clinical evaluation using Marseille, BNI (Barrow Neurological Institute) pain and numbness scores, moreover they completed the Short Form (36) Health Survey (SF-36), ADL (Activity Daily Living) and EGFP (Excellent Good Fair Poor) questionnaires, and underwent psychological and neurological examination...
November 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29170837/post-traumatic-carotid-cavernous-fistula-in-a-pediatric-patient-a-case-based-literature-review
#9
Barbara Albuquerque Morais, Vitor Nagai Yamaki, Jose Guilherme Mendes Pereira Caldas, Wellingson Silva Paiva, Hamilton Matushita, Manoel Jacobsen Teixeira
BACKGROUND: Carotid-cavernous fistula (CCF) is a shunt between the carotid artery and the cavernous sinus. Traumatic CCFs are diagnosed in 0.2% of head traumas being only 4.6% of the pediatric population. Classified by Barrow in 1985, type A CCF is the most frequent, occurring in 75% of cases. Type A is characterized by direct and high-flow CCF that generally can occur as a result of traumatic injury or rupture of an intracavernous aneurysm. CASE PRESENTATION: The subject was an 8-year-old boy with penetrating trauma to his left eye...
November 23, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29074316/outcome-of-gamma-knife-radiosurgery-for-trigeminal-neuralgia-associated-with-neurovascular-compression
#10
Cheng-Siu Chang, Cheng-Wei Huang, His-Hsien Chou, Long-Yau Lin, Chuan-Fu Huang
We reviewed 130 patients from 1999 to 2012 to evaluate whether neurovascular compression (NVC) has prognostic value for pain relief in idiopathic trigeminal neuralgia (TN) treated by Gamma Knife radiosurgery (GKRS). Patients were assigned to one of the following groups based on NVC identified by MRI: no NVC, small vessel NVC, and large vessel (defined as part of the vertebrobasilar arterial system) NVC. Follow-up ranged from 4 to 14years. Primary outcome was pain graded by the Barrow Neurological Institute (BNI) pain scale...
October 23, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29038085/outcomes-of-two-isocenter-gamma-knife-radiosurgery-for-typical-trigeminal-neuralgia-patients-pain-response-and-quality-of-life
#11
Zhao Hongyang, Shen Yin, Yao Dongxiao, Xiong Nanxiang, Ahmed Abdelmaksoud, Wang Haijun
OBJECTIVE: To evaluate the effectiveness and safety of two isocenter GKS by reviewing TN patients of last ten years. METHODS: A total of 247 patients were followed up and the Barrow Neurological Institute (BNI) scale was employed to evaluate pain degree. Patients' age, gender, pain duration and location, pre/post-operative BNI score, time to initial pain relief, recurrence time and complications were documented and analyzed. RESULTS: Patients who underwent a two isocenter GKS could get an earlier initial pain relief...
October 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29030464/computed-tomography-interobserver-agreement-in-the-assessment-of-aneurysmal-subarachnoid-hemorrhage-and-predictors-for-clinical-outcome
#12
Peter Y M Woo, Teresa P K Tse, Robert S K Chan, Lianne N Y Leung, Stephanie K K Liu, Andrew Y T Leung, Hoi-Tung Wong, Kwong-Yau Chan
BACKGROUND: The severity of aneurysmal subarachnoid hemorrhage (SAH) is often assessed by the clinical state of the patient on presentation, but radiological evaluation of the extent of hemorrhage has rarely been examined in the literature. Several CT scan based grading systems exist yet only a few studies have investigated interobserver agreement. We evaluated five radiological grading systems and assessed their clinical value for early prognostication. METHODOLOGY: This was a retrospective study of patients diagnosed with aneurysmal SAH with a CT scan performed within 72 hours of symptom onset...
November 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28961605/radial-extracorporeal-shock-wave-therapy-in-an-individual-with-primary-trigeminal-neuralgia-a-case-report-and-literature-review
#13
Dai Zhang, Ying Meng, Hong Hai, Xiao Tong Yu, Yue Wen Ma
A patient with primary trigeminal neuralgia exhibited pain relief without medication after radial extracorporeal shock wave therapy. The 52-yr-old woman had a 3-yr history of primary trigeminal neuralgia, involving the right maxillary division (V2) and the mandibular division (V3). She became refractory to carbamazepine and exhibited hepatic dysfunction. She hence received 3000 to 6000 impulses of craniofacial radial extracorporeal shock wave therapy to the region centered on the surface projection of the trigeminal ganglion and pain areas at 10 Hz; the intensity ranged from 1...
September 28, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28953684/long-term-outcome-of-percutaneous-balloon-compression-for-trigeminal-neuralgia-patients-elder-than-80-years-a-strobe-compliant-article
#14
Xiang Ying, Hao Wang, Shanghua Deng, Yinggao Chen, Jie Zhang, Wenhua Yu
This article evaluates the long-term outcome of percutaneous balloon compression (PBC) for trigeminal neuralgia (TN) patients elder than 80 years. A total of 138 elderly patients aged above 80 years with primary TN, who were admitted to Neurosurgery Department, Hangzhou First People's Hospital from January 2007 to December 2011 for PBC treatment, were retrospectively analyzed in this study. The postoperative cure rate of immediate pain was 98.6% (Barrow Neurological Institute [BNI] classes I, II); according to the follow-up, the pain cure rates at 1, 2, 3, 4, and 5 years after surgery were 93...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28940973/prediction-of-cerebral-infarction-and-patient-outcome-in-aneurysmal-subarachnoid-hemorrhage-comparison-of-new-and-established-radiographic-clinical-and-combined-scores
#15
Nora F Dengler, Jenny Sommerfeld, Dominik Diesing, Peter Vajkoczy, Stefan Wolf
BACKGROUND: There are numerous grading scales to describe the severity of aneurysmal subarachnoid hemorrhage (aSAH) and to predict outcome. Historically, outcome measures are heterogenous and comparability of grading scales is therefore limited. We designed this study to compare radiographic, clinical and combined grading systems in aSAH. METHODS: Data of 423 consecutive patients with aSAH were analyzed. Modified Fisher, Barrow Neurological Institute (BNI), Hunt and Hess, World Federations of Neurosurgeons (WFNS), VASOGRADE and HAIR scores were calculated from clinical and radiographic data or the combination of both...
September 23, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28927915/stereotactic-radiosurgery-for-type-1-versus-type-2-trigeminal-neuralgias
#16
Ching-Jen Chen, Gabriella Paisan, Thomas J Buell, Kristen Knapp, Dale Ding, Zhiyuan Xu, Daniel M Raper, Davis G Taylor, Robert F Dallapiazza, Cheng-Chia Lee, Jason P Sheehan
INTRODUCTION: It remains unclear whether if stereotactic radiosurgery (SRS) offers the same benefit for patients with type 2 trigeminal neuralgia (TN2) as for those with type 1 trigeminal neuralgia (TN1). The objective of this study is to compare the outcomes of patients with TN1 and TN2 following SRS. METHODS: SRS outcomes of trigeminal neuralgia patients treated at a single center from 1994 to 2016 were analyzed. Patients with TN1 were matched to those with TN2 in a 1:1 ratio based on sex, age, pre-treatment Barrow Neurological Institute (BNI) pain score, prior treatment, prior facial numbness, and maximum dose...
September 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28905114/long-term-outcomes-of-microvascular-decompression-and-gamma-knife-surgery-for-trigeminal-neuralgia-a-retrospective-comparison-study
#17
Takuro Inoue, Hisao Hirai, Ayako Shima, Fumio Suzuki, Masayuki Yamaji, Takanori Fukushima, Masayuki Matsuda
BACKGROUND: There is still no clear guideline for surgical treatment for patients with medically refractory trigeminal neuralgia (TN). When it comes to which surgical treatment to choose, microvascular decompression (MVD) or Gamma Knife surgery (GKS), we should know the long-term outcome of each treatment. METHODS: We analyzed 179 patients undergoing MVD and 52 patients undergoing GKS followed for 1 year or longer. We evaluated the patient's neurological status including pain relief, complications and recurrence...
November 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28751459/pten-loss-increases-the-connectivity-of-fast-synaptic-motifs-and-functional-connectivity-in-a-developing-hippocampal-network
#18
Caitlynn M Barrows, Matthew P McCabe, Hongmei Chen, John W Swann, Matthew C Weston
Changes in synaptic strength and connectivity are thought to be a major mechanism through which many gene variants cause neurological disease. Hyperactivation of the PI3K-mTOR signaling network, via loss of function of repressors such as PTEN, causes epilepsy in humans and animal models, and altered mTOR signaling may contribute to a broad range of neurological diseases. Changes in synaptic transmission have been reported in animal models of PTEN loss; however, the full extent of these changes, and their effect on network function, is still unknown...
September 6, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28721891/stereotactic-radiosurgery-for-trigeminal-neuralgia-improves-patient-reported-quality-of-life-and-reduces-depression
#19
Rupesh Kotecha, Jacob A Miller, Sujith Modugula, Gene H Barnett, Erin S Murphy, Chandana A Reddy, John H Suh, Gennady Neyman, Andre Machado, Sean Nagel, Samuel T Chao
PURPOSE: To characterize quality-of-life (QOL) outcomes after stereotactic radiosurgery (SRS) for trigeminal neuralgia (TN). METHODS AND MATERIALS: The EuroQOL 5 Dimensions (EQ-5D) and Patient Health Questionnaire 9 (PHQ-9) were prospectively collected before and after SRS for 50 patients with TN. Pain response and treatment-related facial numbness were classified by Barrow Neurological Institute (BNI) scales. Differences in pooled QOL outcomes were tested with paired t tests and sign tests...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28721330/truebeam-radiosurgery-for-the-treatment-of-trigeminal-neuralgia-preliminary-results-at-a-single-institution
#20
Mena G Kerolus, Neilayan Sen, Sonal Mayekar, Alistar Templeton, Julius Turian, Aidnag Diaz, Lorenzo Munoz, Richard W Byrne, Sepehr Sani
INTRODUCTION: Radiosurgery is now an established method of satisfactory pain control in patients with trigeminal neuralgia (TN). The Varian Truebeam STx (Varian Medical Systems, Palo Alto, CA) linear accelerator (LINAC) system is an arc-based, frameless stereotactic radiosurgery system used for the treatment of TN. To our knowledge, there has been only one published series of patient histories that documents the use of a frameless LINAC system for the treatment of TN. We describe the treatment parameters, patient outcomes, and complications associated with the treatment of TN...
June 16, 2017: Curēus
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