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chronic regional pain syndrome

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https://www.readbyqxmd.com/read/28642688/lower-functional-connectivity-of-the-periaqueductal-gray-is-related-to-negative-affect-and-clinical-manifestations-of-fibromyalgia
#1
Marie-Andrée Coulombe, Keith St Lawrence, Dwight E Moulin, Patricia Morley-Forster, Mahsa Shokouhi, Warren R Nielson, Karen D Davis
Fibromyalgia (FM) syndrome is characterized by chronic widespread pain, muscle tenderness and emotional distress. Previous studies found reduced endogenous pain modulation in FM. This deficiency of pain modulation may be related to the attributes of chronic pain and other clinical symptoms experienced in patients with FM. Thus, we tested whether there is a link between the clinical symptoms of FM and functional connectivity (FC) of the periaqueductal gray (PAG), a key node of pain modulation. We acquired resting state 3T functional MRI (rsfMRI) data from 23 female patients with FM and 16 age- and sex- matched healthy controls (HC) and assessed FM symptoms with the Brief Pain Inventory (BPI), Fibromyalgia Impact Questionnaire (FIQ), Hospital Anxiety and Depression Scale (HADS) and Pain Catastrophizing Scale (PCS)...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28622208/duloxetine-plasma-concentrations-and-its-effectiveness-in-the-treatment-of-nonorganic-chronic-pain-in-the-orofacial-region
#2
Yuka Kobayashi, Wataru Nagashima, Tatsuya Tokura, Keizo Yoshida, Eri Umemura, Tomoya Miyauchi, Munetaka Arao, Mikiko Ito, Hiroyuki Kimura, Kenichi Kurita, Norio Ozaki
OBJECTIVE: The purpose of this study was to examine the relationship between the pain-relieving effects of duloxetine and its plasma concentrations in patients with burning mouth syndrome and atypical odontalgia characterized by chronic nonorganic pain in the orofacial region. METHODS: We administered duloxetine to 77 patients diagnosed as having burning mouth syndrome or atypical odontalgia for 12 weeks. The initial dose of duloxetine was established as 20 mg/d and was increased to 40 mg/d after week 2...
June 16, 2017: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/28616655/-cognitive-perceptive-approaches-in-the-treatment-of-chronic-pain
#3
REVIEW
C Storz, H Schulte-Göcking, M Azqueta, C Wania, M Neugebauer, A Reiners, S Azad, E Kraft
In the treatment of difficult chronic pain conditions, cognitive-perceptive approaches offer an alternative to conventional therapies. Especially phantom limb pain and complex regional pain syndrome (CRPS) are frequently treated with these promising modalities. This article provides an overview of the most important cognitive-perceptive therapies and the research results concerning their clinical efficacy. In addition, we discuss their neurobiological foundation and clinical perspectives.
June 14, 2017: Der Schmerz
https://www.readbyqxmd.com/read/28605972/resting-state-connectivity-between-default-mode-network-and-insula-encodes-acute-migraine-headache
#4
Gianluca Coppola, Antonio Di Renzo, Emanuele Tinelli, Cherubino Di Lorenzo, Marco Scapeccia, Vincenzo Parisi, Mariano Serrao, Maurizio Evangelista, Anna Ambrosini, Claudio Colonnese, Jean Schoenen, Francesco Pierelli
Background Previous functional MRI studies have revealed that ongoing clinical pain in different chronic pain syndromes is directly correlated to the connectivity strength of the resting default mode network (DMN) with the insula. Here, we investigated seed-based resting state DMN-insula connectivity during acute migraine headaches. Methods Thirteen migraine without aura patients (MI) underwent 3 T MRI scans during the initial six hours of a spontaneous migraine attack, and were compared to a group of 19 healthy volunteers (HV)...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28594885/effect-of-a-new-formulation-of-micronized-and-ultramicronized-n-palmitoylethanolamine-in-a-tibia-fracture-mouse-model-of-complex-regional-pain-syndrome
#5
Roberta Fusco, Enrico Gugliandolo, Michela Campolo, Maurizio Evangelista, Rosanna Di Paola, Salvatore Cuzzocrea
Complex regional pain syndrome type 1 (CRPS-I) is a disabling and frequently chronic condition. It involves the extremities and is a frequent consequence of distal tibia and radius fractures. The inflamed appearance of the affected CRPS-I limb suggests that local production of inflammatory mediators may be implicated in the ensuing etiology. A rodent tibia fracture model, characterized by inflammation, chronic unilateral hindlimb warmth, edema, protein extravasation, allodynia and hyperalgesia resembles the clinical features of patients with acute CRPS-I...
2017: PloS One
https://www.readbyqxmd.com/read/28560313/urothelial-tight-junction-barrier-dysfunction-sensitizes-bladder-afferents
#6
Nicolas Montalbetti, Anna C Rued, Stefanie N Taiclet, Lori A Birder, F Aura Kullmann, Marcelo D Carattino
Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic voiding disorder that presents with pain in the urinary bladder and surrounding pelvic region. A growing body of evidence suggests that an increase in the permeability of the urothelium, the epithelial barrier that lines the interior of the bladder, contributes to the symptoms of IC/BPS. To examine the consequence of increased urothelial permeability on pelvic pain and afferent excitability, we overexpressed in the urothelium claudin 2 (Cldn2), a tight junction (TJ)-associated protein whose message is significantly upregulated in biopsies of IC/BPS patients...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28553882/functional-brain-connectivity-of-remembered-fatigue-or-happiness-in-healthy-adults-use-of-arterial-spin-labeling
#7
Jeff Boissoneault, Landrew Sevel, Michael E Robinson, Roland Staud
INTRODUCTION: Chronic fatiguing illnesses like cancer, multiple sclerosis, chronic fatigue syndrome, or depression are frequently associated with comorbidities including depression, pain, and insomnia, making the study of their neural correlates challenging. To study fatigue without such comorbidities, functional connectivity (FC) analyses were used in healthy individuals to study brain activity during recall of a fatiguing event inside the MRI scanner. A positive mood induction served as control condition...
May 29, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28540568/-tibial-pilon-fractures-advoidance-and-therapy-of-complications
#8
REVIEW
Ralph Gaulke, Christian Krettek
Because of the complex fracture morphology and vulnerable soft tissue coverage, fractures of the tibial pilon are difficult to treat. Complications are more common than in bi- or trimalleolar fractures. The surgeon has to know about the special risks of these injuries to avoid complications. Early complications are soft tissue necrosis, persisting fragment dislocations after surgery, loss of reposition and deep wound infection. The surgeon has to be aware of early signs of compartment-syndrome and chronic regional pain syndrome (CRPS)...
May 24, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28537569/inguinal-pain-syndrome-the-influence-of-intraoperative-local-administration-of-0-5-bupivacaine-on-postoperative-pain-control-following-lichtenstein-hernioplasty-a-prospective-case-control-study
#9
Bartosz Cybułka
With current technological advancement and availability of synthetic materials used in inguinal hernia repair, a recurrence after first intervention is not a common and important adverse event. On the other hand, however, some patients complain about chronic pain of the operated site after surgeries using a polypropylene mesh. Many patients are constrained to a prolonged use of analgesics and increased frequency of control visits, which may eventually result in loss of trust in the operator. Every surgical intervention is associated with the risk of immediate or delayed complications...
April 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28523214/complex-regional-pain-syndrome-the-matter-of-white-matter
#10
Jaakko Hotta, Guangyu Zhou, Hanna Harno, Nina Forss, Riitta Hari
INTRODUCTION: Many central pathophysiological aspects of complex regional pain syndrome (CRPS) are still unknown. Although brain-imaging studies are increasingly supporting the contribution of the central nervous system to the generation and maintenance of the CRPS pain, the brain's white-matter alterations are seldom investigated. METHODS: In this study, we used diffusion tensor imaging to explore white-matter changes in twelve CRPS-type-1 female patients suffering from chronic right upper-limb pain compared with twelve healthy control subjects...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28522185/orofacial-complex-regional-pain-syndrome-pathophysiologic-mechanisms-and-functional-mri
#11
Yeon-Hee Lee, Kyung Mi Lee, Hyug-Gi Kim, Soo-Kyung Kang, Q-Schick Auh, Jyung-Pyo Hong, Yang-Hyun Chun
Complex regional pain syndrome (CRPS) is one of the most challenging chronic pain conditions and is characterized by burning pain, allodynia, hyperalgesia, autonomic changes, trophic changes, edema, and functional loss involving mainly the extremities. Until recently, very few reports have been published concerning CRPS involving the orofacial area. We report on a 50-year-old female patient who presented with unbearable pain in all of her teeth and hypersensitivity of the facial skin. She also reported intractable pain in both extremities accompanied by temperature changes and orofacial pain that increased when the other pains were aggravated...
March 14, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28467566/-spinal-cord-stimulation-in-62-patients-retrospective-evaluation
#12
İrem Özdemir, Mert Akbaş, Arif Yeğin, Gözde Dağıstan, Deniz Özel Erkan
OBJECTIVES: Spinal cord stimulation (SCS) is used for various indications such as Failed Back Surgey Syndrome, peripheral causalgia, neuropathic pain, complex regional pain syndrome, reflex sympathetic dystrophy, peripheral vascular disease, ischemic heart disease and cancer pain. METHODS: This is a retrospective study. 62 patients applied SCS were included in retrospective study from february 2011-january 2015 in Akdeniz University medicine faculty algology department...
January 2017: Aǧrı: Ağrı (Algoloji) Derneği'nin Yayın Organıdır, the Journal of the Turkish Society of Algology
https://www.readbyqxmd.com/read/28460699/case-study-of-high-dose-ketamine-for-treatment-of-complex-regional-pain-syndrome-in-the-pediatric-intensive-care-unit
#13
REVIEW
Tracy Ann Pasek, Kelli Crowley, Catherine Campese, Rachel Lauer, Charles Yang
Complex regional pain syndrome (CRPS) is a life-altering and debilitating chronic pain condition. The authors are presenting a case study of a female who received high-dose ketamine for the management of her CRPS. The innovative treatment lies not only within the pharmacologic management of her pain, but also in the fact that she was the first patient to be admitted to our pediatric intensive care unit solely for pain control. The primary component of the pharmacotherapy treatment strategy plan was escalating-dose ketamine infusion via patient-controlled-analgesia approved by the pharmacy and therapeutics committee guided therapy for this patient...
June 2017: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/28443062/somatosensory-misrepresentation-associated-with-chronic-pain-spatiotemporal-correlates-of-sensory-perception-in-a-patient-following-a-complex-regional-pain-syndrome-spread
#14
Lars Büntjen, Jens-Max Hopf, Christian Merkel, Jürgen Voges, Stefan Knape, Hans-Jochen Heinze, Mircea Ariel Schoenfeld
Chronic pain is suggested to be linked to reorganization processes in the sensorimotor cortex. In the current study, the somatosensory representation of the extremities was investigated in a patient with a complex regional pain syndrome (CRPS) that initially occurred in the right hand and arm and spread later into the left hand and right leg. After the spread, magnetoencephalographic recordings in conjunction with somatosensory stimulation revealed that the clinical symptoms were associated with major changes in the primary somatosensory representation...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28442855/the-functional-outcome-of-mini-carpal-tunnel-release
#15
Amaleswaran Anbarasan, Nahulan Thevarajah, Abdul Nawfar Sadagatullah
Introduction Carpal tunnel syndrome (CTS) is one of the most common compression neuropathies in the upper limbs and requires surgery if conservative treatment fails. This study assessed the functional outcome of vertical mini carpal tunnel release (CTR) at distal wrist crease. Objective To evaluate prospectively the safety, effectiveness, and reproducibility of vertical mini-open blind technique for CTR. Methods In total, 36 patients (40 hands) aged between 22 and 71 years with mild to moderate CTS based on nerve conduction studies were selected and screened based on inclusion and exclusion criteria...
April 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28439388/herlyn-werner-wunderlich-syndrome-with-ureteric-remnant-abscess-managed-laparoscopically-a-case-report
#16
Aurus Dourado Meneses, Walberto Monteiro Neiva Eulálio Filho, Débora Maria Ribeiro Raulino, Eduardo Bruno Lobato Martins, Sabas Carlos Vieira
Herlyn-Werner-Wunderlich (HWW) syndrome is part of a spectrum of Müllerian duct anomalies that occur during embryonic development. The syndrome is characterized by uterus didelphys, obstructed hemivagina, and ipsilateral renal agenesis. Only few cases of this disease were reported worldwide. We present a 23-year-old female patient with chronic pelvic pain for years. The patient was diagnosed with HWW syndrome with a history of hematocolpos and vaginoplasty at the age of 12. Five months later, she sought urgent medical care due to intense pain, and a clinical picture suggestive of peritoneal irritation...
March 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28425324/persistent-idiopathic-facial-pain
#17
Rafael Benoliel, Charly Gaul
Background Persistent idiopathic facial pain (PIFP) is a chronic disorder recurring daily for more than two hours per day over more than three months, in the absence of clinical neurological deficit. PIFP is the current terminology for Atypical Facial Pain and is characterized by daily or near daily pain that is initially confined but may subsequently spread. Pain cannot be attributed to any pathological process, although traumatic neuropathic mechanisms are suspected. When present intraorally, PIFP has been termed 'Atypical Odontalgia', and this entity is discussed in a separate article in this special issue...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28419751/clinical-characteristics-of-fibromyalgia-in-a-chronic-pain-population
#18
Mark Gostine, Fred Davis, Bradley Roberts, Rebecca Risko, Michael Asmus, Joseph C Cappelleri, Alesia Sadosky
OBJECTIVE: To compare fibromyalgia (FM) characteristics among patients identified in a community-based chronic pain cohort based on traditional International Classification of Diagnoses Ninth Revision, ICD-9 diagnostic coding, with that of patients identified using a novel predictive model. METHODS: This retrospective study used data collected from July 1999 to February 17, 2015 in multiple chronic pain clinics in the United States. Patients were assigned to the FM case group based on specific inclusion criteria using ICD-9 codes or, separately, from results of a novel FM predictive model that was developed using random forest and logistic regression techniques...
April 18, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28410599/the-role-of-vitamin-c-in-the-treatment-of-pain-new-insights
#19
REVIEW
Anitra C Carr, Cate McCall
The vitamin C deficiency disease scurvy is characterised by musculoskeletal pain and recent epidemiological evidence has indicated an association between suboptimal vitamin C status and spinal pain. Furthermore, accumulating evidence indicates that vitamin C administration can exhibit analgesic properties in some clinical conditions. The prevalence of hypovitaminosis C and vitamin C deficiency is high in various patient groups, such as surgical/trauma, infectious diseases and cancer patients. A number of recent clinical studies have shown that vitamin C administration to patients with chronic regional pain syndrome decreases their symptoms...
April 14, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28397030/electroencephalographic-evidence-of-altered-top-down-attentional-modulation-in-fibromyalgia-patients-during-a-working-memory-task
#20
Alberto J González-Villar, Marina Pidal-Miranda, Manuel Arias, Dolores Rodríguez-Salgado, María T Carrillo-de-la-Peña
Fibromyalgia (FM) is a chronic syndrome involving widespread pain of unclear pathophysiology. FM patients frequently complain about cognitive symptoms that interfere with their daily life activities. Several studies have reported attentional deficits and working memory impairment in FM patients. Nevertheless, the mechanisms involved in these alterations are still poorly understood. In this study we recorded electroencephalographic activity in 32 women with FM and 30 matched controls while they performed a 2-back working memory task...
April 10, 2017: Brain Topography
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