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Trigeminal pain

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https://www.readbyqxmd.com/read/28934792/effects-of-pulsed-versus-conventional-versus-combined-radiofrequency-for-the-treatment-of-trigeminal-neuralgia-a-prospective-study
#1
Abdelraheem Elawamy, Esam Eldein Mohamed Abdalla, Ghaydaa A Shehata
BACKGROUND: During radiofrequency bursts of energy are applied to nervous tissue. The clinical advantages of this treatment remain unclear. OBJECTIVES: We compared the effectiveness and pain relief for idiopathic trigeminal neuralgia (TN) after continuous radiofrequency (CRF), pulsed radiofrequency (PRF), and combined continuous and pulsed radiofrequency (CCPRF) treatment of the Gasserian ganglion (GG). STUDY DESIGN: We conducted a randomized prospective study...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28931106/a-case-of-prethoracic-pain-radiating-upward-and-initiating-nervus-intermedius-neuralgia-and-migraine-headache-could-epicrania-fugax-pain-start-in-the-upper-body
#2
Yu Wang, Pei-Lin Kan, Yuan-Feng Tao, Xiao-Yan Li, Xiao-Juan Yang, Gui-Ling Liang
Epicrania fugax (EF) was recently classified as a primary headache in the Appendix of the International Classification of Headache Disorders, third edition (ICHD-III). It is characterized by a paroxysmal pain rapidly radiating forward or backward along a linear or zigzag trajectory on the surface of the head. This article reports a 76-year-old woman who newly developed a paroxysmal EF-type pain distributed not only in the territories of the trigeminal and occipital nerves, but also in the territories of the cervical and thoracic nerves...
September 20, 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28928638/affective-circuitry-alterations-in-patients-with-trigeminal-neuralgia
#3
Dave J Hayes, David Q Chen, Jidan Zhong, Ariel Lin, Brendan Behan, Matthew Walker, Mojgan Hodaie
Trigeminal neuralgia (TN) is a severe chronic neuropathic facial pain disorder. Affect-related behavioral and structural brain changes have been noted across chronic pain disorders, but have not been well-studied in TN. We examined the potential impact of TN (37 patients: 23 with right-sided TN, 14 with left-sided TN), compared to age- and sex-matched healthy controls, on three major white matter tracts responsible for carrying affect-related signals-i.e., cingulum, fornix, and medial forebrain bundle. Diffusion magnetic resonance imaging (dMRI), deterministic multi-tensor tractography for tract modeling, and a model-driven region-of-interest approach was used...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28927915/stereotactic-radiosurgery-for-type-1-versus-type-2-trigeminal-neuralgias
#4
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/28922046/supraorbital-electrical-stimulation-in-management-of-chronic-type-tension-headache-a-randomized-controlled-study
#5
Nashwa S Hamed
BACKGROUND AND PURPOSE: Headache disorders are considered one of the ten most disabling conditions, for both males and females, according to the World Health Organization. Chronic type tension headache (CTTH) has a prevalence of 2-3% within the general population. The purpose of this research was to investigate the effect of stimulating noninvasively the trigeminal nerve in the supraorbital area (SOES) for treatment of CTTH. METHODS: In an 8-week period of intervention, 45 patients were divided equally into three groups...
September 18, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28920110/painful-neuropathy-caused-by-compression-of-the-inferior-alveolar-nerve-by-focal-osteosclerotic-lesion-of-the-mandible-a-case-report
#6
David Debevc, Tomaž Hitij, Andrej Kansky
Osteosclerotic lesions are a common finding on dental radiographs. They are considered developmental variants of a normal bone architecture and they usually do not need any treatment. The purpose of this article is to present a rare case of osteosclerotic lesion of the mandible causing trigeminal neuropathy by compression of the alveolar nerve. The pain started with dental hypersensitivity of the mandibular right first molar. Later on, signs of irreversible molar tooth pulpitis developed. Endodontic therapy and apicoectomy did not resolve the pain, which later intensified, and painful neuropathy localized to inferior alveolar nerve developed; therefore, surgical decompression was indicated...
2017: Quintessence International
https://www.readbyqxmd.com/read/28920040/parasympathetic-cholinergic-and-neuropeptide-mechanisms-of-migraine
#7
REVIEW
Nikita Mikhailov, Oleg V Mamontov, Alexei A Kamshilin, Rashid Giniatullin
CONTEXT: Migraine mechanisms remain largely uncovered for various reasons including a very high complexity of the neurophysiological mechanisms implicated in this disorder and a plethora of endogenous biologically active compounds involved in the pathological process. The functional role of parasympathetic innervation of meninges and cholinergic mechanisms of migraine are among little explored issues despite multiple evidence indirectly indicating the role of acetylcholine (ACh) and its analogues in migraine and other types of headache...
February 2017: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/28911939/evaluation-of-airborne-sensory-irritants-for-setting-exposure-limits-or-guidelines-a-systematic-approach
#8
REVIEW
Gunnar Damgaard Nielsen, Peder Wolkoff
Sensory irritation of eyes and upper airways is an important endpoint for setting occupational exposure limits (OELs) and indoor air guidelines. Sensory irritants cause a painful burning, stinging and itching sensation. Controlled chamber studies are the "golden standard" for evaluations. Well conducted workplace studies offer another possibility. For generalization, the number of participants and their age, smoking, gender, and prior exposure, experience and mood has to be considered. Exposure assessments have to be reliable and exposure duration sufficiently long to establish time-response relationships...
September 11, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28905370/neuromodulation-and-devices-in-trigeminal-neuralgia
#9
Kevin Weber
PREMISE: Trigeminal neuralgia is a severe facial pain disorder that has been studied for decades. Classical trigeminal neuralgia (CTN) is either idiopathic or caused by neurovascular compression. The related painful trigeminal neuropathies are often secondary to other causes, such as multiple sclerosis or trauma. PROBLEM: Therapies for trigeminal neuralgia and neuropathy have often been pharmacologic or surgical. Pharmacologic therapies are not effective in some cases and often cause side effects, some substantial...
September 14, 2017: Headache
https://www.readbyqxmd.com/read/28905114/long-term-outcomes-of-microvascular-decompression-and-gamma-knife-surgery-for-trigeminal-neuralgia-a-retrospective-comparison-study
#10
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...
September 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28900824/external-nasal-neuralgia-an-update
#11
REVIEW
Hida Nierenburg, Morgane Swift Morris
PURPOSE OF REVIEW: External nasal neuralgia is a rare syndrome of atypical facial pain for which there is limited reports in the scientific literature. We aim to review diagnosis and provide an update on treatments for this rare condition. RECENT FINDINGS: Etiology has been documented as post-traumatic due to direct trauma to the nose area and in few case reports, idiopathic. Sensory innervation of the nose arises from the ophthalmic and maxillary divisions of the trigeminal nerve...
September 13, 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28899786/artemin-transiently-increases-inos-expression-in-primary-cultured-trigeminal-ganglion-neurons
#12
Haiqiong Shang, Yan Wang, Xiuhua Chao, Gaoying Sun, Xiaohui Bai, Lei Xu, Yuechen Han, Jianfeng Li, Haibo Wang, Zhaomin Fan
Artemin, a member of the glial cell line-derived neurotrophic factor family, is an important cytokine and a critical participant in trigeminal pain disorders such as tongue pain and migraine. However, the mechanisms underlying artemin's activity are largely unknown. In the present study, we used primary cultured trigeminal ganglion neurons (TGNs) to determine the effect of artemin on the expression of the inducible form of nitric oxide synthase (iNOS), which is released in response to painful and inflammatory stimuli...
September 9, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28891205/effects-on-jaw-function-shortly-after-whiplash-trauma
#13
Ewa Lampa, Anders Wänman, Erik Nordh, Birgitta Häggman-Henrikson
Normal jaw function involves muscles and joints of both jaw and neck. A whiplash trauma may disturb the integrated jaw-neck sensory-motor function and thereby impair chewing ability, however, it is not known if such impairment is present shortly after a neck trauma or develops over time. The aim was to evaluate jaw function after a recent whiplash trauma. Eighty cases (47 women) were examined within one month after a whiplash trauma and compared to 80 controls (47 women) without neck trauma. Participants completed the Jaw disability checklist (JDC) and Neck Disability Index (NDI) questionnaires and performed a 5-minute chewing test...
September 11, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28889233/adenoid-cystic-carcinoma-of-the-cavernous-sinus-otolaryngological-sequelae-of-therapy-case-report
#14
Edyta Dzięciołowska-Baran, Aleksandra Gawlikowska-Sroka
A 60-year-old woman, otherwise in a good health condition, was first admitted to the hospital with a year-long tingling sensations of the right half of the face, which gradually turned into severe neuralgia corresponding to maxillary (V2) and mandibular (V3) branches of the right trigeminal nerve. MRI scans of the head revealed an unusual hyperplastic or inflammatory changes along the brain base, cavernous sinus extending toward the pterygopalatine fossa, and lateral pterygoid on the right side. Meningioma was suspected and neuralgia was treated conservatively...
September 10, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28885456/tumor-necrosis-factor-alpha-secreted-from-oral-squamous-cell-carcinoma-contributes-to-cancer-pain-and-associated-inflammation
#15
Nicole N Scheff, Yi Ye, Aditi Bhattacharya, Justin MacRae, Dustin H Hickman, Atul K Sharma, John C Dolan, Brian L Schmidt
Oral cancer patients report severe pain during function. Inflammation plays a role in the oral cancer microenvironment; however, the role of immune cells and associated secretion of inflammatory mediators in oral cancer pain has not been well defined. In this study, we utilized two oral cancer mouse models: a cell line supernatant injection model and the 4-nitroquinoline-1-oxide (4NQO) chemical carcinogenesis model. We used the two models to study changes in immune cell infiltrate and orofacial nociception associated with oral squamous cell carcinoma (oSCC)...
September 1, 2017: Pain
https://www.readbyqxmd.com/read/28885085/targeting-the-central-projection-of-the-dural-trigeminovascular-system-for-migraine-prophylaxis
#16
Simon Akerman, Marcela Romero-Reyes
Migraine abortives likely target both peripheral-dural and central trigeminovascular mechanisms in mediating their therapeutic effects. However, in preclinical assays, many migraine preventives have little success at inhibiting similar trigeminovascular-mediated peripheral changes within the dural microenvironment. In addition, their effects on central trigeminovascular neuronal responses are largely unknown. Using a validated preclinical model of acute dural-intracranial (migraine-like) head pain, using Sprague Dawley rats, we tested whether migraine preventives suppress ongoing firing of central trigeminocervical neurons, and evoked responses to cranial neurovascular activation...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28884307/the-role-of-the-transient-receptor-potential-ankyrin-type-1-trpa1-channel-in-migraine-pain-evaluation-in-an-animal-model
#17
Chiara Demartini, Cristina Tassorelli, Anna Maria Zanaboni, Germana Tonsi, Oscar Francesconi, Cristina Nativi, Rosaria Greco
BACKGROUND: Clinical and experimental studies have pointed to the possible involvement of the transient receptor potential ankyrin type-1 (TRPA1) channels in migraine pain. In this study, we aimed to further investigate the role of these channels in an animal model of migraine using a novel TRPA1 antagonist, ADM_12, as a probe. METHODS: The effects of ADM_12 on nitroglycerin-induced hyperalgesia at the trigeminal level were investigated in male rats using the quantification of nocifensive behavior in the orofacial formalin test...
September 7, 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28883526/synthesis-high-throughput-screening-and-pharmacological-characterization-of-%C3%AE-lactam-derivatives-as-trpm8-antagonists
#18
Roberto de la Torre-Martínez, M Angeles Bonache, Pedro J Llabrés-Campaner, Beatriz Balsera, Asia Fernández-Carvajal, Gregorio Fernández-Ballester, Antonio Ferrer-Montiel, M Jesús Pérez de Vega, Rosario González-Muñiz
The mammalian transient receptor potential melastatin channel 8 (TRPM8), highly expressed in trigeminal and dorsal root ganglia, mediates the cooling sensation and plays an important role in the cold hypersensitivity characteristic of some types of neuropathic pain, as well as in cancer. Consequently, the identification of selective and potent ligands for TRPM8 is of great interest. Here, a series of compounds, having a β-lactam central scaffold, were prepared to explore the pharmacophore requirements for TRPM8 modulation...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28882631/neurochemical-dynamics-of-acute-orofacial-pain-in-the-human-trigeminal-brainstem-nuclear-complex
#19
Nuno M P de Matos, Andreas Hock, Michael Wyss, Dominik A Ettlin, Mike Brügger
The trigeminal brainstem sensory nuclear complex is the first central relay structure mediating orofacial somatosensory and nociceptive perception. Animal studies suggest a substantial involvement of neurochemical alterations at such basal CNS levels in acute and chronic pain processing. Translating this animal based knowledge to humans is challenging. Human related examining of brainstem functions are challenged by MR related peculiarities as well as applicability aspects of experimentally standardized paradigms...
September 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/28875858/managing-neuropathic-pain-in-multiple-sclerosis-pharmacological-interventions
#20
Samuel S Duffy, Justin G Lees, Chamini J Perera, Gila Moalem-Taylor
BACKGROUND: Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system (CNS). Of the plethora of motor and sensory disturbances experienced by sufferers, neuropathic pain is a highly prevalent and debilitating symptom, and at present remains extremely difficult to treat. Common forms of neuropathic pain seen in MS patients include central neuropathic pain, Lhermitte's phenomenon and trigeminal neuralgia, which are all speculated to arise from specific patterns of lesion formation...
September 6, 2017: Medicinal Chemistry
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