keyword
MENU ▼
Read by QxMD icon Read
search

QST

keyword
https://www.readbyqxmd.com/read/28742627/measurement-error-of-a-simplified-protocol-for-quantitative-sensory-tests-in-chronic-pain-patients
#1
Monika Müller, José Alberto Biurrun Manresa, Andreas Limacher, Konrad Streitberger, Peter Jüni, Ole Kæseler Andersen, Michele Curatolo
BACKGROUND AND OBJECTIVES: Large-scale application of Quantitative Sensory Tests (QST) is impaired by lacking standardized testing protocols. One unclear methodological aspect is the number of records needed to minimize measurement error. Traditionally, measurements are repeated 3 to 5 times, and their mean value is considered. When transferring QST to a clinical setting, reducing the number of records would be desirable to meet the time constraints encountered in a routine clinical environment and to reduce the testing burden to chronic pain patients...
July 24, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28738104/psychosocial-profiles-of-temporomandibular-disorder-pain-patients-proposal-of-a-new-approach-to-present-complex-data
#2
Simple Futarmal Kothari, Lene Baad-Hansen, Peter Svensson
AIMS: To propose a visual method to screen and assess psychosocial functioning in temporomandibular disorder (TMD) pain patients in comparison with age- and gender-matched healthy controls by forming individual profiles and to evaluate the association between psychosocial profiles and quantitative sensory testing (QST) findings of TMD pain patients. METHODS: TMD patients (n = 58) and control participants (n = 41) completed a set of questionnaires profiling their psychosocial function, and QST was performed at the temporomandibular joint (TMJ) on both sides of the face in all participants...
July 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28735971/-lacking-warmth-alexithymia-trait-is-related-to-warm-specific-thermal-somatosensory-processing
#3
Khatereh Borhani, Elisabetta Làdavas, Aikaterini Fotopoulou, Patrick Haggard
Alexithymia is a personality trait involving deficits in emotional processing. The personality construct has been extensively validated, but the underlying neural and physiological systems remain controversial. One theory suggests that low-level somatosensory mechanisms act as somatic markers of emotion, underpinning cognitive and affective impairments in alexithymia. In two separate samples (total N=100), we used an established Quantitative Sensory Testing (QST) battery to probe multiple neurophysiological submodalities of somatosensation, and investigated their associations with the widely-used Toronto Alexithymia Scale (TAS-20)...
July 20, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28719619/diagnostic-utility-of-corneal-confocal-microscopy-and-intra-epidermal-nerve-fibre-density-in-diabetic-neuropathy
#4
Uazman Alam, Maria Jeziorska, Ioannis N Petropoulos, Omar Asghar, Hassan Fadavi, Georgios Ponirakis, Andrew Marshall, Mitra Tavakoli, Andrew J M Boulton, Nathan Efron, Rayaz A Malik
OBJECTIVES: Corneal confocal microscopy (CCM) is a rapid, non-invasive, reproducible technique that quantifies small nerve fibres. We have compared the diagnostic capability of CCM against a range of established measures of nerve damage in patients with diabetic neuropathy. METHODS: In this cross sectional study, thirty subjects with Type 1 diabetes without neuropathy (T1DM), thirty one T1DM subjects with neuropathy (DSPN) and twenty seven non-diabetic healthy control subjects underwent detailed assessment of neuropathic symptoms and neurologic deficits, quantitative sensory testing (QST), electrophysiology, skin biopsy and corneal confocal microscopy (CCM)...
2017: PloS One
https://www.readbyqxmd.com/read/28700537/qst-response-patterns-to-capsaicin-and-uv-b-induced-local-skin-hypersensitization-in-healthy-subjects-a-machine-learned-analysis
#5
Jörn Lötsch, Gerd Geisslinger, Sarah Heinemann, Florian Lerch, Bruno G Oertel, Alfred Ultsch
The comprehensive assessment of pain-related human phenotypes requires combinations of nociceptive measures that produce complex high-dimensional data, posing challenges to bioinformatic analysis. In this study, we assessed established experimental models of heat hyperalgesia of the skin, consisting of local ultraviolet-B (UV-B) irradiation or capsaicin application, in 82 healthy subjects using a variety of noxious stimuli. We extended the original heat simulation by applying cold and mechanical stimuli and assessing the hypersensitization effects with a clinically established quantitative sensory testing (QST) battery (German Research Network on Neuropathic Pain)...
July 8, 2017: Pain
https://www.readbyqxmd.com/read/28698221/patellar-and-achilles-tendinopathies-are-predominantly-peripheral-pain-states-a-blinded-case-control-study-of-somatosensory-and-psychological-profiles
#6
Melanie L Plinsinga, Cornelis P van Wilgen, Michel S Brink, Viana Vuvan, Aoife Stephenson, Luke J Heales, Rebecca Mellor, Brooke K Coombes, Bill T Vicenzino
STUDY DESIGN: Case-control design. BACKGROUND: Tendinopathy is characterised by pain on tendon loading. In persistent cases of upper limb tendinopathy, it is frequently associated with central nervous system sensitisation, whereas less commonly linked in the case of persistent lower limb tendinopathies. OBJECTIVES: Compare somatosensory and psychological profiles of participants with persistent patellar (PT) and Achilles tendinopathies (AT) with pain-free controls...
July 11, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28686664/somatosensory-function-in-patients-with-secondary-adrenal-insufficiency-treated-with-two-different-doses-of-hydrocortisone-results-from-a-randomized-controlled-trial
#7
Jorien Werumeus Buning, Karl-Heinz Konopka, Pauline Brummelman, Janneke Koerts, Robin P F Dullaart, Gerrit van den Berg, Melanie M van der Klauw, Oliver Tucha, Bruce H R Wolffenbuttel, André P van Beek
BACKGROUND: Low cortisol levels are associated with several functional pain syndromes. In patients with secondary adrenal insufficiency (SAI), the lack in endogenous cortisol production is substituted by the administration of oral hydrocortisone (HC). Our previous study showed that a lower dose of HC led to an increase in reported subjective pain symptoms. Whether different doses of HC substitution alter somatosensory functioning in SAI patients has not been established yet. METHODS: In this randomized double blind cross-over trial, forty-six patients with SAI participated...
2017: PloS One
https://www.readbyqxmd.com/read/28686253/predictive-models-of-gas-sorption-in-a-metal-organic-framework-with-open-metal-sites-and-small-pore-sizes
#8
Tony Pham, Katherine A Forrest, Douglas M Franz, Zhiyong Guo, Banglin Chen, Brian Space
Simulations of CO2 and H2 sorption were performed in UTSA-20, a metal-organic framework (MOF) having zyg topology and composed of Cu(2+) ions coordinated to 3,3',3'',5,5',5''-benzene-1,3,5-triyl-hexabenzoate (BHB) linkers. Previous experimental studies have shown that this MOF displays remarkable CO2 sorption properties and exhibits one of the highest gravimetric H2 uptakes at 77 K/1.0 atm (2.9 wt%) [Z. Guo, et al. Angew. Chem., Int. Ed., 2011, 50, 3178-3181]. For both sorbates, the simulations were executed with the inclusion of explicit many-body polarization interactions, which was necessary to reproduce sorption onto the open-metal sites...
July 7, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28681534/generalization-of-the-qst-framework-in-hierarchically-structured-populations-impacts-of-inbreeding-and-dominance
#9
Philippe Cubry, Ivan Scotti, Sylvie Oddou-Muratorio, François Lefèvre
QST is a differentiation parameter based on the decomposition of the genetic variance of a trait. In the case of additive inheritance and absence of selection, it is analogous to the genic differentiation measured on individual loci, FST . Thus, QST  - FST comparison is used to infer selection: selective divergence when QST  > FST , or convergence when QST  < FST. The definition of Q-statistics was extended to two-levels hierarchical population structures with Hardy-Weinberg equilibrium. Here, we generalize the Q-statistics framework to any hierarchical population structure...
July 6, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28673764/how-to-assess-sensory-recovery-after-breast-reconstruction-surgery
#10
Helena K Puonti, Taina A Broth, Seppo O Soinila, Helena K Hallikainen, Satu K Jääskeläinen
BACKGROUND: We evaluated clinical against psychophysical (tactile and thermal quantitative sensory test [QST]), neurophysiologic (somatosensory evoked potential [SEP]), and epithelial nerve fiber density (ENFD) examinations in detection and follow-up of sensory alterations after breast reconstruction done with or without nerve anastomoses. PATIENTS AND METHODS: In a prospective 2-year follow-up design, 56 breast cancer patients underwent innervated and 20 patients noninnervated free rectus abdominis muscle-sparing flap (ms-TRAM) breast reconstruction...
April 29, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28623897/altered-somatosensory-profile-according-to-quantitative-sensory-testing-in-patients-with-degenerative-lumbar-spine-disorders-scheduled-for-surgery
#11
Yvonne Lindbäck, Hans Tropp, Paul Enthoven, Björn Gerdle, Allan Abbott, Birgitta Öberg
BACKGROUND: Somatosensory profiling in affected and non-affected body regions can strengthen our insight regarding the underlying pain mechanisms, which can be valuable in treatment decision making and to improve outcomes, in patients with degenerative lumbar spine disorders pre-surgery. The aim was to describe somatosensory profiles in patients with degenerative lumbar spine disorders, to identify the proportion with altered somatosensory profile, and to analyze demographic characteristics, self-reported function, pain, and health pre- and 3 months post-surgery...
June 17, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28614190/non-histaminergic-and-mechanical-itch-sensitization-in-atopic-dermatitis
#12
H H Andersen, J Elberling, H Sølvsten, G Yosipovitch, L Arendt-Nielsen
Chronic or episodic severe itch is recurrent in atopic dermatitis (AD). Non-histaminergic neuronal itch pathways are suggested to dominate in AD itch, contributing to an "itch-scratch-itch cycle" that prolongs and worsens itch, pain, and skin lesions. We hypothesized that non-histaminergic neuronal sensitization contributes to itch in AD. Hence, we compared sensitivity to thermal, mechanical, and chemical pruritic stimuli in AD patients and controls. The study comprised 25 AD patients with chronic itch and 25 healthy controls...
June 9, 2017: Pain
https://www.readbyqxmd.com/read/28602692/psychological-characteristics-and-pain-frequency-are-associated-with-experimental-pain-sensitivity-in-pediatric-patients-with-sickle-cell-disease
#13
Nitya Bakshi, Ines Lukombo, Helen Shnol, Inna Belfer, Lakshmanan Krishnamurti
Sickle Cell Disease (SCD) is associated with episodes of severe vasocclusive pain beginning in infancy with a subset of patients with SCD transitioning to chronic pain. Response to experimental pain using Quantitative Sensory Testing (QST) in these patients suggest altered pain processing. The objectives of this study were to characterize sensitivity to multiple modalities of experimental pain stimuli and to interrogate the relationship of psychological covariates, clinical pain burden and pain-related outcomes to experimental pain sensitivity in children with SCD as compared to healthy individuals of similar age and sex...
June 5, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28579822/quantitative-sensory-testing-measures-individual-pain-responses-in-emergency-department-patients
#14
Kevin J Duffy, Katharyn L Flickinger, Jeffrey T Kristan, Melissa J Repine, Alexandro Gianforcaro, Rebecca B Hasley, Saad Feroz, Jessica M Rupp, Jumana Al-Baghli, Maria L Pacella, Brian P Suffoletto, Clifton W Callaway
BACKGROUND: Refining and individualizing treatment of acute pain in the emergency department (ED) is a high priority, given that painful complaints are the most common reasons for ED visits. Few tools exist to objectively measure pain perception in the ED setting. We speculated that variation in perception of fixed painful stimuli would explain individual variation in reported pain and response to treatment among ED patients. MATERIALS AND METHODS: In three studies, we 1) describe performance characteristics of brief quantitative sensory testing (QST) in 50 healthy volunteers, 2) test effects of 10 mg oxycodone versus placebo on QST measures in 18 healthy volunteers, and 3) measure interindividual differences in nociception and treatment responses in 198 ED patients with a painful complaint during ED treatment...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28575334/characterization-of-peripheral-and-central-sensitization-after-dorsal-root-ganglion-intervention-in-patients-with-unilateral-lumbosacral-radicular-pain-a-prospective-pilot-study
#15
V Mehta, S Snidvongs, B Ghai, R Langford, T Wodehouse
Background.: Quantitative sensory testing (QST) has been used to predict the outcome of epidural steroid injections in lumbosacral radicular pain and has the potential to be an important tool in the selection of appropriate treatment (such as epidural steroid injections vs surgery) for patients with chronic radicular pain. In addition, QST assists in identification of the pain pathways of peripheral and central sensitization in selected groups of patients. Methods.: Twenty-three patients were given dorsal root ganglion (DRG) infiltration with local anaesthesia and steroid ('DRG block'), and those who demonstrated at least 50% pain relief were offered pulsed radiofrequency (PRF) to the DRG...
June 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28556476/neurophysiological-changes-associated-with-implant-associated-augmentation-procedures-in-the-lower-jaw
#16
Amely Hartmann, Claudia Welte-Jzyk, Marcus Seiler, Monika Daubländer
BACKGROUND: Neurophysiological changes after oral and maxillofacial surgery remain one of the topics of current research. PURPOSE: This study evaluated if implant placement associated with augmentation procedures increases the possibility of sensory disturbances or result in impaired quality of life during the healing period. MATERIAL AND METHODS: Patients who had obtained an implant placement in the lower jaw in combination with augmentation procedures were examined by implementing a comprehensive Quantitative Sensory Testing (QST) protocol for extra- and intraoral use...
May 29, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28556279/porous-aromatic-framework-as-an-efficient-metal-free-electro-catalyst-for-non-enzymatic-h2-o2-sensing
#17
Rongrong Yuan, Yue Gu, Hao Ren, Jia Liu, Guangshan Zhu
A porous aromatic framework (referred as PAF-39) based on tetrakis(4-(9H-carbazol-9-yl)phenyl)methane has been designed and synthesized by oxidative coupling polymerization. PAF-39 exhibits high surface area and high heat of adsorption (Qst ) of CO2 . Especially, the PAF material was applied for non-enzymatic H2 O2 sensing.
May 28, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28538207/association-of-serum-ninjurin2-levels-with-neurologic-damage-and-postherpetic-neuralgia-occurrence-an-observational-cohort-study-in-chinese-herpeszoster-patients
#18
Guozhuan Zhang, Yingjiao Sun, Lei Wang, Hui Tian, Lishuang Liang
OBJECTIVES: Postherpetic neuralgia(PHN) is the most common complication of herpeszoster (HZ) infection. The study aimed to explore whether serum Ninjurin2 (for nerve injury-induced protein 2, NINJ2), a novel neurologic damage related protein, is associated with nerve injury and the occurrence of PHN. RESULTS: Seventy-four of the eighty patients completed the study. On the 7th day of AHN, the patients had significantly higher values of NINJ2, cold-sense dispersion (ΔCS), warm-sense dispersion (ΔWS), cold-pain dispersion (ΔCP), heat-pain dispersion (ΔHP) and NRS score compared to controls...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535551/angiotensin-converting-enzyme-inhibitors-and-angiotensin-receptor-blockers-modulate-the-function-of-myelinated-fibers-after-chemotherapy-a-quantitative-sensory-testing-study
#19
Carlos J Roldan, Juhee Song, Mitchell P Engle, Patrick M Dougherty
BACKGROUND: Angiotensin-converting enzyme inhibitors (ACEI) and angiotensin receptor blockers (ARB) have sufficient scientific support for their use as tissue protectors. Preliminary studies suggest that their angiotensin-II type 2 receptor (AT2R)-blocking properties have a beneficial profile in the treatment of neuropathic pain. OBJECTIVES: The purpose of the current study was to quantify the extent of the somatosensory effects of ACEI and ARB in cancer patients with chemotherapy-induced peripheral neuropathy...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28528759/replicate-effects-and-test-retest-reliability-of-quantitative-sensory-threshold-testing-in-dogs-with-and-without-chronic-pain
#20
David Knazovicky, Erika S Helgeson, Beth Case, Andrea Thomson, Margaret E Gruen, William Maixner, B Duncan X Lascelles
OBJECTIVE: To evaluate replicate effects and test-retest reliability of mechanical and thermal quantitative sensory testing (QST) in normal dogs and dogs with osteoarthritis (OA)-associated pain. STUDY DESIGN: A prospective clinical study. ANIMALS: A total of 54 client owned dogs (OA, n=31; controls, n=23). METHODS: Mechanical [electronic von Frey (EVF) and blunt pressure] and thermal (hot and cold) sensory thresholds were obtained in dogs with OA-associated pain and control dogs at two visits, 7 days apart, to assess test-retest reliability...
January 10, 2017: Veterinary Anaesthesia and Analgesia
keyword
keyword
86843
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"