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Trigeminal neuralgia and nerve

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https://www.readbyqxmd.com/read/28524797/the-relationship-of-dose-to-nerve-volume-in-predicting-pain-recurrence-after-stereotactic-radiosurgery-in-trigeminal-neuralgia
#1
Amparo Wolf, Amy Tyburczy, Jason Chao Ye, Girish Fatterpekar, Joshua S Silverman, Douglas Kondziolka
OBJECTIVE Approximately 75%-92% of patients with trigeminal neuralgia (TN) achieve pain relief after Gamma Knife surgery (GKS), although a proportion of these patients will experience recurrence of their pain. To evaluate the reasons for durability or recurrence, this study determined the impact of trigeminal nerve length and volume, the nerve dose-volume relationship, and the presence of neurovascular compression (NVC) on pain outcomes after GKS for TN. METHODS Fifty-eight patients with 60 symptomatic nerves underwent GKS for TN between 2013 and 2015, including 15 symptomatic nerves secondary to multiple sclerosis (MS)...
May 19, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28524125/-surgical-management-of-venous-compression-causing-trigeminal-neuralgia
#2
V K Poshataev, A N Konovalov, V N Shimanskiy
Venous compression is a rare cause of trigeminal neuralgia (TN). Vascular decompression of the trigeminal nerve root, as the only etiopathogenetic treatment of trigeminal neuralgia, is a well-known procedure that is extensively used at various neurosurgical clinics. As the number of interventions for TN increases, the absolute number of surgeries for eliminating venous compression of the trigeminal nerve also grows. Five hundred TN patients underwent surgery at the Neurosurgical Institute in the period from 2000 to 2015...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28517492/practical-considerations-of-linear-accelerator-based-frameless-extracranial-radiosurgery-for-treatment-of-occipital-neuralgia-for-nonsurgical-candidates
#3
Travis R Denton, Lisa B E Shields, Jonathan N Howe, Todd S Shanks, Aaron C Spalding
Occipital neuralgia generally responds to medical or invasive procedures. Repeated invasive procedures generate increasing complications and are often contraindicated. Stereotactic radiosurgery (SRS) has not been reported as a treatment option largely due to the extracranial nature of the target as opposed to the similar, more established trigeminal neuralgia. A dedicated phantom study was conducted to determine the optimum imaging studies, fusion matrices, and treatment planning parameters to target the C2 dorsal root ganglion which forms the occipital nerve...
May 18, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28512048/combined-hyperactive-dysfunction-syndrome-of-the-cranial-nerves-a-retrospective-systematic-study-of-clinical-characteristics-in-44-patients
#4
Jingwei Cao, Jie Jiao, Zhenhui Du, Wenzhe Xu, Bin Sun, Feng Li, Yuguang Liu
BACKGROUND: Combined hyperactive dysfunction syndrome (HDS) is defined as the combination symptoms arising from overactivity in cranial nerves specifically, trigeminal neuralgia (TN), hemifacial spasm (HFS), and glossopharyngeal neuralgia (GPN) without an obvious explanatory structural lesion. The study aims to retrospectively analyze the clinical characteristics of combined HDS treated with microvascular decompression (MVD) in a single institution. METHODS: A total of 1450 patients with HDS were treated with MVD in our department during a 10-year period, among which 44 cases of combined HDS were identified...
May 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28481804/computed-tomography-in-the-diagnosis-of-classical-trigeminal-neuralgia
#5
Victor A Baliazin, Elena V Baliazina, Daniil P Aksenov
OBJECTIVE: This study aims to characterize the pathogenesis of neurovascular conflict in trigeminal neuralgia (TN) with the goal of producing a reliable diagnostic method. METHODS: Data were obtained during microvascular decompression surgery. The normal relationship between the superior cerebellar artery (SCA) and the trigeminal nerve root also was characterized in postmortem cases. Furthermore, SCA was imaged with high-resolution computed tomography angiography...
May 6, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28472393/fluoroscopic-c-arm-and-ct-guided-selective-radiofrequency-ablation-for-trigeminal-and-glossopharyngeal-facial-pain-syndromes
#6
Nicholas A Telischak, Jeremy J Heit, Lucas W Campos, Omar A Choudhri, Huy M Do, Xiang Qian
Objectives.:  Percutaneous radiofrequency ablation (RFA) of the gasserian ganglion through the foramen ovale and the glossopharyngeal nerve at the jugular foramen is a classical approach to treating trigeminal neuralgia (TN) and glossopharyngeal neuralgia (GPN), respectively. However, it can be technically challenging with serious complications. We have thus developed a novel technique utilizing C-arm and computerized tomography (CT) guidance to block TN and GPN. Our goals were to describe a three-dimensional image-based technique to improve patient comfort and to decrease procedural time associated with needle guidance...
May 2, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28468211/symptomatic-trigeminal-neuralgia-caused-by-cerebellopontine-angle-tumors
#7
Pengfei Liu, Chenlong Liao, Wenxiang Zhong, Min Yang, Shiting Li, Wenchuan Zhang
To investigate the characteristics of symptomatic trigeminal neuralgia (TN) caused by tumors and the relationship between anatomicosurgical findings and tumor type, the authors undertook a retrospective review of 35 patients with symptomatic TN between 2006 and 2015. The tumors included 16 meningiomas, 14 epidermoids, 4 vestibular schwannomas, and 1 hemangioblastoma. The studies show that patients with tumor-induced TN were significantly younger than those idiopathic TN (P <0.05). Meningioma-induced TN tended to have responsible vessels, while epidermoid tumor seemed to cause TN by wrapping or compressing the nerve...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28454993/frameless-stereotactic-radiosurgery-for-the-treatment-of-multiple-sclerosis-related-trigeminal-neuralgia
#8
Alfredo Conti, Antonio Pontoriero, Giuseppe Iatì, Felice Esposito, Enrico Nastro Siniscalchi, Salvatore Crimi, Sergio Vinci, Anna Brogna, Francesco De Ponte, Antonino Germanò, Stefano Pergolizzi, Francesco Tomasello
BACKGROUND: Trigeminal neuralgia (TN) affects 7% of patients with multiple sclerosis (MS). In such patients, TN is difficult to manage either pharmacologically and surgically. Radiosurgical rhizotomy is an effective treatment option. The non-isocentric geometry of radiation beams of CyberKnife introduces new concepts in the treatment of TN. Its efficacy for MS-related TN has not yet been demonstrated. METHODS: Twenty-seven patients with refractory TN and MS were treated...
April 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28434965/trochlear-schwannoma-presenting-with-isolated-trigeminal-neuralgia
#9
Cody L Nesvick, Avital Perry, Christopher S Graffeo, Aditya Raghunathan, Julie E Hammack, Jamie J Van Gompel
BACKGROUND: Schwannomas arising from the cranial nerves controlling extraocular eye movements are very rare and usually present with some degree of diplopia. CASE DESCRIPTION: We report a 50-year-old woman who presented with isolated left-sided trigeminal neuralgia of six months' duration. Imaging demonstrated a homogeneously enhancing mass in the left ambient cistern, and the patient was taken to the operating room for resection. A retrosigmoid approach was used, and the mass was directly visualized arising from the trochlear nerve and compressing on the dorsal root entry zone of the trigeminal nerve...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28424990/proteomic-analysis-of-the-hippocampus-in-mouse-models-of-trigeminal-neuralgia-and-inescapable-shock-induced-depression
#10
Qing-Huan Guo, Qing-He Tong, Ning Lu, Hong Cao, Liu Yang, Yu-Qiu Zhang
To investigate the behavioral and biomolecular similarity between neuralgia and depression, a trigeminal neuralgia (TN) mouse model was established by constriction of the infraorbital nerve (CION) to mimic clinical trigeminal neuropathic pain. A mouse learned helplessness (LH) model was developed to investigate inescapable foot-shock-induced psychiatric disorders like depression in humans. Mass spectrometry was used to assess changes in the biomolecules and signaling pathways in the hippocampus from TN or LH mice...
April 19, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28421829/hydrocephalus-and-trigeminal-neuralgia-exploring-the-association-and-management-options
#11
Yuuki Charlie Barke Na, Shyam Vijay Pujara, Ahmad Abdelhai Moussa, Amy Charlotte Gerrish, Surajit Basu
We report the successful surgical management of three patients with trigeminal neuralgia and hydrocephalus. MRI revealed no neurovascular contact at the trigeminal root entry zone. Trigeminal neuralgic symptoms were controlled following alleviation of hydrocephalus. We hypothesize that trigeminal nerve traction, secondary to hydrocephalus, as the cause for their trigeminal neuralgia.
April 19, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28403646/neuropathic-orofacial-pain-facts-and-fiction
#12
Lene Baad-Hansen, Rafael Benoliel
Definition and taxonomy This review deals with neuropathic pain of traumatic origin affecting the trigeminal nerve, i.e. painful post-traumatic trigeminal neuropathy (PTTN). Symptomatology The clinical characteristics of PTTN vary considerably, partly due to the type and extent of injury. Symptoms involve combinations of spontaneous and evoked pain and of positive and negative somatosensory signs. These patients are at risk of going through unnecessary dental/surgical procedures in the attempt to eradicate the cause of the pain, due to the fact that most dentists only rarely encounter PTTN...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28397136/an-experimental-animal-model-for-percutaneous-procedures-used-in-trigeminal-neuralgia
#13
Johannes Herta, Wei-Te Wang, Romana Höftberger, Sabine Breit, Sibylle Kneissl, Helga Bergmeister, Heber Ferraz-Leite
OBJECT: This study describes an experimental rabbit model that allows the reproduction of percutaneous operations that are used in patients with trigeminal neuralgia (TN). Attention was given to an exact anatomical description of the rabbit's middle cranial fossa as well as the establishment of conditions for a successful procedure. METHODS: Morphometric measurements were taken from 20 rabbit skulls and CT scans. The anatomy of the trigeminal nerve, as well as its surrounding structures, was assessed by bilateral dissection of 13 New Zealand white rabbits (NWR)...
April 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28394552/multiple-intracranial-schwannomas-case-report
#14
Mario Mihalj, Krešimir Dolić, Pavao Jurinović, Nikolina Ivica Miše, Marina Titlić, Irena Pintarić
Schwannomas are benign encapsulated tumors arising from the sheaths of peripheral nerves. They present as slowly enlarging solitary lumps, which may cause neurological defects. Multiple schwannomas in non-neurofi bromatosis type 2 patients are extremely rare. We report a case of a 60-year-old female patient, without any family history of neurofibromatosis or schwannomatosis, presented with trigeminal neuralgia and progressive facial nerve palsy. Magnetic resonance imaging revealed the presence of acoustic schwannoma involving facial nerve and trigeminal schwannoma of the cisternal part of the nerve involving gasserian ganglion (Meckel’s cave)...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28392449/clinical-analysis-and-surgical-treatment-of-trigeminal-neuralgia-caused-by-vertebrobasilar-dolichoectasia-a-retrospective-study
#15
Shoujia Sun, Wei Jiang, Junwen Wang, Pan Gao, Xiaojing Zhang, Liwu Jiao, Weihua Liu, Kai Shu, Ting Lei
BACKGROUND: Trigeminal neuralgia (TN) caused by vertebrobasilar dolichoectasia (VBD) is rare and needs further exploration. The purpose of this study is to investigate the clinical features and surgical treatment of TN caused by VBD. METHODS: 15 patients with TN caused by VBD were included in our study. The patient data regarding clinical characteristics, neuroimaging presentations, intraoperative findings and treatment outcomes were analyzed retrospectively. Moreover, the previous relevant literature was reviewed simultaneously...
April 6, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28377255/safety-of-superior-petrosal-vein-sacrifice-during-microvascular-decompression-of-the-trigeminal-nerve
#16
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/28351724/trigeminal-neuralgia-completely-relieved-after-stent-assisted-coiling-of-a-superior-cerebellar-artery-aneurysm
#17
Giulia Di Stefano, Nicola Limbucci, Giorgio Cruccu, Leonardo Renieri, Andrea Truini, Salvatore Mangiafico
BACKGROUND: Although secondary trigeminal neuralgia is usually due to tumors or multiple sclerosis, other major neurologic diseases, such as aneurysms, should be taken into account when the history or the symptoms suggest a secondary origin. CASE DESCRIPTION: A 67-year-old lady presented with a 6-month history of trigeminal neuralgia involving exclusively the right ophthalmic division. A dedicated 3-dimensional-magnetic resonance imaging-magnetic resonance angiography study documented rare contact with a wide-necked aneurysm of the superior cerebellar artery, which distorted the trigeminal root...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28347576/familial-classic-trigeminal-neuralgia
#18
B Fernández Rodríguez, C Simonet, D M Cerdán, N Morollón, P Guerrero, C Tabernero, J Duarte
INTRODUCTION: The classic form of trigeminal neuralgia is usually sporadic (no familial clustering). However, around 2% of all cases of trigeminal neuralgia may be familial. Describing this entity may be useful for diagnosing this process and may also be key to determining the underlying causes of sporadic classical trigeminal neuralgia. We report on cases in a series of 5 families with at least 2 members with classic trigeminal neuralgia, amounting to a total of 11 cases. MATERIAL AND METHODS: We recorded cases of familial classical trigeminal neuralgia between March 2014 and March 2015 by systematically interviewing all patients with a diagnosis of trigeminal neuralgia who visited the neurology department on an outpatient basis...
March 24, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28339630/mr-tractography-in-short-lasting-unilateral-neuralgiform-headache-attacks-with-conjunctival-injection-and-tearing-sunct-patients-case-reports
#19
Ozlem Coskun, Murat Ucar, Doga Vuralli, Funuzar Yildirim, Rumeysa Cetinkaya, Suna Akin Takmaz, Serap Ucler
Background. : Short-lasting unilateral neuralgiform headache attack with conjunctival injection and tearing (SUNCT) is one of the trigeminal autonomic cephalalgias where neurovascular compression was detected in neuroimaging in recent years. Case. : We report two cases, a 52-year-old adult and a 69-year-old elderly patient with short-lasting and recurrent headache combined with cranial autonomic features. Diffusion tensor imaging (DTI) and magnetic resonance (MR) tractography of both patients outlined structural changes of the trigeminal nerve revealing neurovascular compression...
February 11, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28336479/radiosurgical-target-distance-from-the-root-entry-zone-in-the-treatment-of-trigeminal-neuralgia
#20
Justin Sharim, Wei-Lun Lo, Won Kim, Srinivas Chivukula, Stephen Tenn, Tania Kaprealian, Nader Pouratian
PURPOSE: Stereotactic radiosurgery (SRS) provides a noninvasive treatment modality for patients with medically refractory trigeminal neuralgia. The root entry zone (REZ) has been proposed to be an ideal stereotactic target because it is partially composed of centrally produced myelin, conferring a theoretical increased sensitivity to irradiation as well as increased susceptibility to neurovascular conflict, making it the site in which nociceptive signals likely arise. The aim of this study is to determine if there is a statistically and clinically significant difference in pain relief or facial hypesthesia following SRS based on distance of the stereotactic isocenter from REZ...
December 23, 2016: Practical Radiation Oncology
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