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Chronic regional pain

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https://www.readbyqxmd.com/read/27923382/ectopic-third-molars-in-the-sigmoid-notch-etiology-diagnostic-imaging-and-treatment-options
#1
Marcel Hanisch, Leopold F Fröhlich, Johannes Kleinheinz
BACKGROUND: The etiology of ectopic third molars located in the sigmoid notch of the mandible is unclear. Only a few cases have been reported. The aim of this article is to discuss the etiology as well as treatment options and diagnostic imaging techniques. METHODS: A PubMed and Medline search of the literature from 1965 to 2015 to ectopic third molars in the mandibular notch was performed. Furthermore, a clinical case provided by the authors is reported. RESULTS: Among the eight reviewed cases, two male and six female patients were affected that ranged from 25 to 62 years of age (mean 48...
December 6, 2016: Head & Face Medicine
https://www.readbyqxmd.com/read/27920178/animal-models-of-chikungunya-virus-infection-and-disease
#2
Nicole N Haese, Rebecca M Broeckel, David W Hawman, Mark T Heise, Thomas E Morrison, Daniel N Streblow
Chikungunya virus (CHIKV) is a reemerging alphavirus that causes acute febrile illness and severe joint pain in humans. Although acute symptoms often resolve within a few days, chronic joint and muscle pain can be long lasting. In the last decade, CHIKV has caused widespread outbreaks of unprecedented scale in the Americas, Asia, and the Indian Ocean island regions. Despite these outbreaks and the continued expansion of CHIKV into new areas, mechanisms of chikungunya pathogenesis and disease are not well understood...
December 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27919822/astrocyte-contributes-to-pain-development-via-mmp2-jnk1-2-signaling-in-a-mouse-model-of-complex-regional-pain-syndrome
#3
Guogang Tian, Xin Luo, Chaoliang Tang, Xiang Cheng, Sookja Kim Chung, Zhengyuan Xia, Chi Wai Cheung, Qulian Guo
BACKGROUND: The activation of spinal glial cells (astrocyte and microglia) is reported in patient with complex regional pain syndrome (CRPS). However, the roles of spinal glial activities in the pathophysiology of CRPS are unclear. Here, we explored the roles of spinal astrocyte and microglia and the molecular mechanisms underlying CRPS using a mouse model of chronic post-ischemia pain (CPIP). RESULTS: CPIP injury increased the level of glial fibrillary acidic protein (GFAP, reactive astrocyte biomarker), but had no significant impact on ionized calcium binding adaptor molecule 1 (IBA1, reactive microglia biomarker), in the ipsilateral dorsal horn on post-injury day (PID) 3 when the pain threshold started to reduce significantly...
December 2, 2016: Life Sciences
https://www.readbyqxmd.com/read/27917672/-insomnia-and-habits-to-help-to-fall-asleep-among-adults
#4
Katalin Fusz, Béla Faludi, Dorina Pusztai, Nóra Sebők, András Oláh
INTRODUCTION: The quality of sleep can be influenced by several factors, insomnia in turn has an effect on the state of health. AIM: The aim of our survey is to measure the effects of insomnia, furthermore, the sleep affecting agents and habits to help to fall asleep among adults. METHOD: We collected the online nationwide and the written datas from the South-Transdanubia region, 455 adults filled the questionnaire which contains the Athens Insomnia Scale...
December 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27917457/patient-reported-outcomes-pros-after-total-extraperitoneal-hernia-repair-tep
#5
E H H Mommers, D R M Hünen, J C H M van Hout, M Guit, J A Wegdam, S W Nienhuijs, T S de Vries Reilingh
BACKGROUND: Patient-reported outcomes (PROs) such as quality of life (QoL), patient satisfaction, and work impairment, are arguably the most important outcomes of any medical treatment. In 2011, Staerkle and Villiger developed the Core Outcome Measurements Index (COMI) to standardise PROs and PRO measurement for inguinal hernia patients, in an attempt to increase inter-study comparability. The aim of this study is to prospectively evaluate the short- and long-term postoperative QoL, function, patient well-being, pain, and social/work disability, after total extraperitoneal (TEP) inguinal hernia repair and to provide the first clinical experience with the COMI-hernia questionnaire...
December 5, 2016: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/27906932/polyunsaturated-fatty-acids-and-chronic-pain-a-systematic-review-and-meta-analysis
#6
Jesus Prego-Dominguez, Fatine Hadrya, Bahi Takkouche
BACKGROUND: Chronic pain is one of the most frequent disease symptoms and represents a global health problem with a considerable economic burden. The role of polyunsaturated fatty acids (PUFA) in chronic pain conditions was debated during the last decade with conflicting results. OBJECTIVE: To assess whether polyunsaturated fatty acids intake is useful as a preventive or curative tool in chronic pain. STUDY DESIGN: Systematic review and meta-analysis...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27904908/spreading-of-pain-and-insomnia-in-patients-with-chronic-pain-results-from-a-national-quality-registry-sqrp
#7
Peter Alföldi, Elena Dragioti, Tobias Wiklund, Björn Gerdle
OBJECTIVE: To explore how demographics, pain, psychosocial factors and insomnia relate to the spread of chronic pain. METHODS: The study included 708 patients (68% women; median age 46 years; interquartile range 35-57 years) with chronic pain who were referred to a multidisciplinary pain centre. Spreading of pain was assessed using a questionnaire covering 36 anatomically predefined pain regions. Data were collected on demographics, pain symptoms, psychological distress, and insomnia (Insomnia Severity Index)...
November 30, 2016: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27903639/automated-classification-of-pain-perception-using-high-density-electroencephalography-data
#8
Gaurav Misra, Wei-En Wang, Derek B Archer, Arnab Roy, Stephen A Coombes
Translating brief millisecond-long pain-eliciting stimuli to the subjective perception of pain is associated with changes in theta, alpha, beta, and gamma oscillations over sensorimotor cortex. However, when a pain-eliciting stimulus continues for minutes, regions beyond the sensorimotor cortex such as the prefrontal cortex are also engaged. Abnormalities in prefrontal cortex have been associated with chronic pain states, but conventional millisecond-long EEG paradigms do not engage prefrontal regions. In the current study we collected high-density EEG data during an experimental paradigm in which subjects experienced a 4 second low or high intensity pain-eliciting stimulus...
November 30, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27895769/unusual-lower-back-pain-with-monocytosis-a-case-report
#9
Sheng-Cheng Wu, Tzu-Chuan Huang, Wen-Ya Yu, Yi-Ying Wu
There are numerous causes of lower back pain. In the oncological setting, spine metastasis from a solid tumor is the most common. However, hematological disorders should also be taken into consideration. The current study presents a case of chronic myelomonocytic leukemia with the initial presentation of chronic lower back pain, followed by symptoms that included urinary retention, stool incontinence and left gum swelling, in a patient who was eventually diagnosed with granulocytic sarcoma (GS) over the sacral region...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893572/pain-management-in-pediatric-burn-patients-review-of-recent-literature-and-future-directions
#10
Omar Pardesi, Gennadiy Fuzaylov
Childhood burns are a profoundly traumatic and painful experience. Despite recognition of the prevalence of burn injuries in children and the severity of the associated pain, burn pain remains undertreated. At the same time, more evidence is emerging to suggest that undertreated pain has serious long-term medical and psychiatric consequences, many of which can be ameliorated with improved pain control. Pain in burn patients is, however, notoriously difficult to treat, perhaps because there is a chronic pain aspect underlying the acute pain that accompanies wound care and procedures...
November 17, 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/27890603/a-novel-inhibitor-of-endocannabinoid-catabolic-enzymes-sheds-light-on-behind-the-scene-interplay-between-chronic-pain-analgesic-tolerance-and-heroin-dependence
#11
Josée Guindon
From the Aristotelian ancient Greece, pain has been associated with appetites or emotions and is opposite to pleasure. Reward and addiction is also linked to pleasure and compulsive drug seeking reinstates pleasure. Alleviation of chronic pain can induce a euphoric phase similar to what is found in addiction. Both chronic pain and addiction are recognized as a disease of the central nervous system. They share many characteristics and brain regions/mechanisms. Evidence points to the usefulness of cannabinoids as a new class of agents to add to the pharmaceutical toolbox in the management of chronic pain...
November 25, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27888261/fluctuating-residual-limb-volume-accommodated-with-an-adjustable-modular-socket-design-a-novel-case-report
#12
Kay Mitton, Jai Kulkarni, Kenneth William Dunn, Anthony Hoang Ung
BACKGROUND: This novel case report describes the problems of prescribing a prosthetic socket in a left transfemoral amputee secondary to chronic patellofemoral instability compounded by complex regional pain syndrome. CASE DESCRIPTION AND METHODS: Following the amputation, complex regional pain syndrome symptoms recurred in the residual limb, presenting mainly with oedema. Due to extreme daily volume fluctuations of the residual limb, a conventional, laminated thermoplastic socket fitting was not feasible...
November 24, 2016: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/27887906/complex-regional-pain-syndrome-associated-with-hyperattention-rather-than-neglect-for-the-healthy-side-a-comprehensive-case-study
#13
Laure Christophe, Ludovic Delporte, Patrice Revol, Annick DePaepe, Gilles Rode, Sophie Jacquin-Courtois, Yves Rossetti
Complex regional pain syndrome (CRPS) is a dehabilitating chronic condition occurring with peripheral lesions. There is growing consensus for a central contribution to CRPS. Although the nature of this central body representation disorder is increasingly debated, it has been repeatedly argued that CRPS results in motor neglect of the affected side. The present article describes a comprehensive and quantitative case report demonstrating that: (1) not all patients with chronic CRPS exhibit decreased spatial attention for the affected side and (2) patients may actually exhibit a substantial, broad and reliable attentional bias toward the painful side, akin to spatial neglect for the healthy side...
November 22, 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27885640/differences-in-topographical-pressure-pain-sensitivity-maps-of-the-scalp-between-patients-with-migraine-and-healthy-controls
#14
Johanna Barón, Marina Ruiz, María Palacios-Ceña, Pascal Madeleine, Ángel L Guerrero, Lars Arendt-Nielsen, César Fernández-de-Las-Peñas
OBJECTIVE: To investigate differences in topographical pressure pain sensitivity maps of the scalp between patients with migraine and healthy controls considering the chronicity (episodic/chronic) and side (strictly unilateral/bilateral) of the symptoms. BACKGROUND: It seems that the trigeminal area is sensitized in migraine. No study has investigated topographical pressure sensitivity maps of the scalp in patients with migraine. METHODS: Pressure pain thresholds (PPTs) were assessed from 21 points distributed over the scalp in 86 patients with episodic migraine, 76 with chronic migraine, and 42 healthy age and matched healthy controls in a blinded design...
November 25, 2016: Headache
https://www.readbyqxmd.com/read/27885426/prospective-cohort-study-assessing-chronic-pain-in-patients-following-minor-surgery-for-breast-cancer
#15
Régis Fuzier, Floriane Puel, Philippe Izard, Agnès Sommet, Sébastien Pierre
PURPOSE: Pain after tumorectomy and sentinel lymph node dissection is poorly reported in the literature. We carried out a prospective survey aimed at assessing pain three months after such minor surgery for breast cancer. METHODS: The study was approved by the local ethics committee. Most surgeries followed a standard protocol involving general anesthesia with no regional analgesia technique, laryngeal mask, sufentanil and propofol for induction, and multimodal analgesia during the postoperative period...
November 24, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27883292/il1a-rs1800587-associates-with-chronic-noncrisis-pain-in-sickle-cell-disease
#16
Xiaoyu Hu, Ellie H Jhun, Yingwei Yao, Ying He, Robert E Molokie, Diana J Wilkie, Zaijie J Wang
AIM: Pain is prevalent in sickle cell disease (SCD) patients who display great heterogeneity in pain severity and frequency. Hypothesizing that inflammatory factors are involved in the pathogenesis of SCD pain, we focused on the IL1A C/T polymorphism rs1800587 that is an SNP located in a cis-transcriptional regulatory region. METHODS: We genotyped IL1A rs1800587 and performed association studies with phenotype data obtained by a multidimensional pain assessment tool using the PAINReportIt(®) Questionnaire...
November 24, 2016: Pharmacogenomics
https://www.readbyqxmd.com/read/27881958/motor-cortex-neurostimulation-technologies-for-chronic-post-stroke-pain-implications-of-tissue-damage-on-stimulation-currents
#17
Anthony T O'Brien, Rivadavio Amorim, R Jarrett Rushmore, Uri Eden, Linda Afifi, Laura Dipietro, Timothy Wagner, Antoni Valero-Cabré
Background: Central post stroke pain (CPSP) is a highly refractory syndrome that can occur after stroke. Primary motor cortex (M1) brain stimulation using epidural brain stimulation (EBS), transcranial magnetic stimulation (TMS), and transcranial direct current stimulation (tDCS) have been explored as potential therapies for CPSP. These techniques have demonstrated variable clinical efficacy. It is hypothesized that changes in the stimulating currents that are caused by stroke-induced changes in brain tissue conductivity limit the efficacy of these techniques...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27879564/structural-brain-imaging-in-people-with-low-back-pain
#18
Zaid M Mansour, Rebcca J Lepping, Robyn A Honea, William M Brooks, Hung-Wen Yeh, Jeffrey M Burns, Neena K Sharma
STUDY DESIGN: Cross-sectional study. OBJECTIVE: The aim of this study was to determine whether low back pain (subacute and chronic) is related to differences in brain volume. SUMMARY OF BACKGROUND DATA: Inconsistent findings have been reported about the effect of chronic low back pain on brain volume, and the effect of subacute low back pain on brain volume has not been sufficiently investigated. METHODS: 130 participants were included (23 subacute and 68 chronic low back pain; 39 healthy controls)...
November 22, 2016: Spine
https://www.readbyqxmd.com/read/27876655/dorsal-root-ganglion-stimulation-attenuates-the-bold-signal-response-to-noxious-sensory-input-in-specific-brain-regions-insights-into-a-possible-mechanism-for-analgesia
#19
Christopher P Pawela, Jeffery M Kramer, Quinn H Hogan
Targeted dorsal root ganglion (DRG) electrical stimulation (i.e. ganglionic field stimulation - GFS) is an emerging therapeutic approach to alleviate chronic pain. Here we describe blood oxygen-level dependent (BOLD) functional magnetic resonance imaging (fMRI) responses to noxious hind-limb stimulation in a rat model that replicates clinical GFS using an electrode implanted adjacent to the DRG. Acute noxious sensory stimulation in the absence of GFS caused robust BOLD fMRI response in brain regions previously associated with sensory and pain-related response, such as primary/secondary somatosensory cortex, retrosplenial granular cortex, thalamus, caudate putamen, nucleus accumbens, globus pallidus, and amygdala...
November 19, 2016: NeuroImage
https://www.readbyqxmd.com/read/27871577/lack-of-electrical-interference-between-spinal-cord-stimulators-and-other-implanted-electrical-pulse-devices
#20
Alaa Abd-Elsayed, Ravi Grandhi, Harsh Sachdeva
Spinal cord stimulators (SCSs) have been used for decades to treat chronic pain. SCSs are often used to treat patients with chronic back pain caused by failed back surgery syndrome, patients with complex regional pain syndrome, or individuals who are not candidates for surgery. SCSs are a relative contraindication in patients with another electrical pulse device. We present 3 patients who received SCS despite having another implant in place. There was no interaction between devices. The first case was a patient with failed back surgery syndrome who had an implantable cardiac defibrillator and an SCS implant...
December 2016: Journal of Clinical Anesthesia
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