keyword
MENU ▼
Read by QxMD icon Read
search

QST

keyword
https://www.readbyqxmd.com/read/28507594/pain-threshold-reflects-psychological-traits-in-patients-with-chronic-pain-a-cross-sectional-study
#1
Fumie Kato, Tetsuya Abe, Kenji Kanbara, Ikumi Ban, Tadashi Kiba, Sadanobu Kawashima, Yukie Saka, Yasuyuki Mizuno, Mikihiko Fukunaga
BACKGROUND: Chronic pain enhances sensory sensitivity and induces the biased development of psychological traits such as depression and pain catastrophizing, leading to the formation of heterogeneous conditions. Fluctuations in the sensory-related thresholds of non-injured sites (with normal peripheral tissue) in patients with chronic pain are thought to be related to central sensitization. The objectives of this study were to analyze the association between pain tolerance thresholds (PTTs) in non-injured sites and the psychological traits of patients with chronic pain and to evaluate the usefulness of PTT measures in assessments of pathological conditions related to chronic pain...
2017: BioPsychoSocial Medicine
https://www.readbyqxmd.com/read/28502878/the-relationship-between-sensory-loss-and-persistent-pain-1-year-after-breast-cancer-surgery
#2
Kenneth Geving Andersen, Helle Molter Duriaud, Henrik Kehlet, Eske Kvanner Aasvang
Moderate-to-severe persistent pain after breast cancer surgery (PPBCS) affects 10-20% of the patients. Sensory dysfunction is often concomitantly present suggesting a neuropathic pain state. The relationship between various postoperative pain states and sensory dysfunction has been examined by quantitative sensory testing (QST), but only 2 smaller studies have examined PPBCS and sensory dysfunction in the surgical area. The purpose of this prospective study was to assess the relative importance of sensory function and PPBCS...
May 11, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28498991/population-differentiation-in-common-walnut-juglans-regia-l-across-major-parts-of-its-native-range-insights-from-molecular-and-morphometric-data
#3
Wladimir Roor, Heino Konrad, Davletbek Mamadjanov, Thomas Geburek
Juglans regia is an economically highly important species for fruit and wood production in the warm temperate and subtropical zones of the Northern Hemisphere. Besides the natural influence of climatic and geomorphological barriers, its genetic structure has been strongly modified by humans and the population history is still unclear. For this reason, we investigated mainly natural walnut populations across the Eurasian continent on a molecular (44 populations, 581 trees) and morphometric level (23 populations, 1391 ripe nuts)...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28493519/neurotransmitters-behind-pain-relief-with-transcranial-magnetic-stimulation-positron-emission-tomography-evidence-for-release-of-endogenous-opioids
#4
S Lamusuo, J Hirvonen, P Lindholm, I K Martikainen, N Hagelberg, R Parkkola, T Taiminen, J Hietala, S Helin, A Virtanen, A Pertovaara, S K Jääskeläinen
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) at M1/S1 cortex has been shown to alleviate neuropathic pain. OBJECTIVES: To investigate the possible neurobiological correlates of cortical neurostimulation for the pain relief. METHODS: We studied the effects of M1/S1 rTMS on nociception, brain dopamine D2 and μ-opioid receptors using a randomized, sham-controlled, double-blinded crossover study design and 3D-positron emission tomography (PET)...
May 11, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28468842/novel-mutations-in-dystonin-provide-clues-to-the-pathomechanisms-of-hsan-vi
#5
Fiore Manganelli, Silvia Parisi, Maria Nolano, Feifei Tao, Simona Paladino, Chiara Pisciotta, Stefano Tozza, Claudia Nesti, Adriana P Rebelo, Vincenzo Provitera, Filippo M Santorelli, Michael E Shy, Tommaso Russo, Stephan Zuchner, Lucio Santoro
OBJECTIVE: To describe a second hereditary sensory autonomic neuropathy type VI (HSAN-VI) family harboring 2 novel heterozygous mutations in the dystonin (DST) gene and to evaluate their effect on neurons derived from induced pluripotent stem cells (iPSC). METHODS: The family consisted of 3 affected siblings from nonconsanguineous healthy parents. All members underwent clinical and electrophysiologic evaluation and genetic analysis. Two patients underwent quantitative sensory testing (QST), cardiovascular reflexes, dynamic sweat test, and skin biopsy to evaluate somatic and autonomic cutaneous innervation and to get fibroblast cultures for developing iPSC-derived neurons...
May 3, 2017: Neurology
https://www.readbyqxmd.com/read/28440002/differential-effect-of-incobotulinumtoxin-a-on-pain-neurogenic-flare-and-hyperalgesia-in-human-surrogate-models-of-neurogenic-pain
#6
S A Diener, M Breimhorst, Th Vogt, H H Krämer, P D Drummond, C Geber, F Birklein
BACKGROUND: The effectiveness of Botulinum-neurotoxin A (BoNT/A) to treat pain in human pain models is very divergent. This study was conducted to clarify if the pain models or the route of BoNT/A application might be responsible for these divergent findings. METHODS: Sixteen healthy subjects (8 males, mean age 27 ± 5 years) were included in a first set of experiments consisting of three visits: (1) Visit: Quantitative sensory testing (QST) was performed before and after intradermal capsaicin injection (CAPS, 15 μg) on one thigh and electrical current stimulation (ES, 1 Hz) on the contralateral thigh...
April 25, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28437846/pain-sensitization-is-associated-with-disease-activity-in-rheumatoid-arthritis-patients-a-cross-sectional-study
#7
Yvonne C Lee, Clifton O Bingham, Robert R Edwards, Wendy Marder, Phillips Kristine, Marcy B Bolster, Daniel J Clauw, Larry W Moreland, Bing Lu, Alyssa Wohlfahrt, Zhi Zhang, Tuhina Neogi
OBJECTIVE: Pain sensitization may contribute to pain severity in rheumatoid arthritis (RA), impacting assessment of disease activity. We examined whether pain processing mechanisms were associated with disease activity among RA patients with active disease. METHODS: This study includes 139 subjects enrolled in the Central Pain in Rheumatoid Arthritis cohort. Subjects underwent quantitative sensory testing (QST), including assessment of pressure pain thresholds (PPTs) at multiple sites, conditioned pain modulation, and temporal summation...
April 24, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28437509/thermal-perception-as-a-key-factor-for-assessing-effects-of-trigeminal-nerve-injury
#8
Hye-Kyoung Kim, Ki-Suk Kim, Mee-Eun Kim
AIMS: To conduct a functional examination using multimodal exploration of a sample of patients with iatrogenic trigeminal nerve injury to understand the underlying mechanisms of neuropathic pain following trigeminal nerve injury. METHODS: Subjective and objective symptoms and responses to thermal and electrical quantitative sensory testing (QST) were evaluated in 85 patients with unilateral trigeminal nerve injury. Objective symptoms were measured by seven clinical sensory tests...
April 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28437507/effects-of-experimental-pain-and-lidocaine-on-mechanical-somatosensory-profile-and-face-perception
#9
Yuri Martins Costa, Eduardo E Castrillon, Leonardo Rigoldi Bonjardim, Paulo César Rodrigues Conti, Lene Baad-Hansen, Peter Svensson
AIMS: To assess the effects of experimental muscle pain and topical lidocaine applied to the skin overlying the masseter muscle on the mechanical somatosensory profile and face perception of the masseter muscle in healthy participants. METHODS: A total of 28 healthy participants received a 45-minute application of a lidocaine or placebo patch to the skin overlying the masseter muscle followed by one injection of 0.2 mL sterile solution of monosodium glutamate. Measurements were taken four times during each session of quantitative sensory testing (QST) (T0 = baseline, T1 = 45 minutes after patch application, T2 = immediately after glutamate injection, and T3 = 25 minutes after the glutamate injection), and the following variables were measured: mechanical detection threshold (MDT), mechanical pain threshold (MPT), pressure pain threshold (PPT), pain report (pain on palpation, pain spreading on palpation, and pain intensity), pain drawing, and perceptual distortion...
April 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28403113/incidence-of-persistent-postoperative-pain-after-hepatectomies-with-2-regimes-of-perioperative-analgesia-containing-ketamine
#10
COMPARATIVE STUDY
Paula Masgoret, Carmen Gomar, Beatriz Tena, Pilar Taurá, José Ríos, Miquel Coca
Studies designed to assess persistent postoperative pain (PPP) incidence after hepatectomies are lacking. Our aim was to assess PPP incidence 6 months after hepatectomies with intravenous (IV) or epidural (EPI) analgesia containing ketamine.Prospective observational comparative study between 2 cohorts of patients submitted to hepatectomy. Patients received 1 of 2 analgesic regimes containing ketamine: EPI group or IV group. Visual analog scale (VAS), Neuropathic Pain Symptom Inventory (NPSI), Pain Catastrophizing Scale (PCS), and quantitative sensorial testing (QST: to determine area of hyperalgesia/allodynia) were assessed preoperatively and postoperatively at 2 h, 24 h, 7 days, 1 month, and 6 months...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28372503/assessment-of-lingual-nerve-functions-after-smoking-cessation
#11
Anne Barbara Rittich, Jens Ellrich, Sareh Said Yekta-Michael
OBJECTIVE: Cigarette smoking is associated with a variety of oral diseases. A previous study showed a reduction of thermal sensitivity in the innervation area of the lingual nerve in smokers possibly caused by a degeneration of thermosensitive receptors as a consequence of smoking. The current study investigates somatosensory changes in ex-smokers. MATERIALS AND METHODS: Sensory functions in innervation areas of lingual nerve were investigated in 40 ex-smokers by psychophysical means...
April 3, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28348505/effects-of-a-pain-catastrophizing-induction-on-sensory-testing-in-women-with-chronic-low-back-pain-a-pilot-study
#12
Chloe J Taub, John A Sturgeon, Kevin A Johnson, Sean C Mackey, Beth D Darnall
Pain catastrophizing, a pattern of negative cognitive-emotional responses to actual or anticipated pain, maintains chronic pain and undermines response to treatments. Currently, precisely how pain catastrophizing influences pain processing is not well understood. In experimental settings, pain catastrophizing has been associated with amplified pain processing. This study sought to clarify pain processing mechanisms via experimental induction of pain catastrophizing. Forty women with chronic low back pain were assigned in blocks to an experimental condition, either a psychologist-led 10-minute pain catastrophizing induction or a control (10-minute rest period)...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28340251/thermal-qst-phenotypes-associated-with-response-to-lumbar-epidural-steroid-injections-a-pilot-study
#13
Dermot P Maher, Weihua Ding, Sarabdeep Singh, Arissa Opalacz, Claire Fishman, Mary Houghton, Shihab Ahmed, Lucy Chen, Jianren Mao, Yi Zhang
Objective.:  Response to lumbar epidural steroid injection in lumbar radicular pain varies. The purpose of this study is to characterize the changes in quantitative sensory testing (QST) phenotypes of subjects and compare the QST characteristics in patients who do respond to treatment of radicular pain with a lumbar epidural steroid injection (ESI). Design.:  Prospective, observational pilot study. Setting.:  Outpatient pain center. Methods...
March 13, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28335745/ipsilateral-and-contralateral-sensory-changes-in-healthy-subjects-after-experimentally-induced-concomitant-sensitization-and-hypoesthesia
#14
RANDOMIZED CONTROLLED TRIAL
Elena K Enax-Krumova, Stephanie Pohl, Andrea Westermann, Christoph Maier
BACKGROUND: In unilateral neuropathic pain. e.g. after peripheral nerve injury, both positive and negative sensory signs occur often, accompanied by minor but equally directed contralateral sensory changes. To mimic this feature, we experimentally aimed to induce concomitant c-fibre sensitization and block in healthy subjects and analyzed the bilateral sensory changes by quantitative sensory testing (QST) using the protocol of the German Research Network on Neuropathic Pain. METHODS: Twenty eight healthy subjects were firstly randomized in 2 groups to receive either topical capsaicin (0...
March 23, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28330489/profiling-intraoral-neuropathic-disturbances-following-lingual-nerve-injury-and-in-burning-mouth-syndrome
#15
Amely Hartmann, Robin Seeberger, Malte Bittner, Roman Rolke, Claudia Welte-Jzyk, Monika Daubländer
BACKGROUND: The aim of the study was to analyse intraoral neurophysiological changes in patients with unilateral lingual nerve lesions as well as patients with Burning Mouth Syndrome (BMS) by applying a standardized Quantitative Sensory Testing (QST) protocol. METHODS: The study included patients suffering from a peripheral lesion of the lingual nerve (n = 4), from BMS (n = 5) and healthy controls (n = 8). Neurophysiological tests were performed in the innervation areas of the tongue bilaterally...
March 23, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28328574/the-long-term-reliability-of-static-and-dynamic-quantitative-sensory-testing-in-healthy-individuals
#16
Anna Marcuzzi, Paul J Wrigley, Catherine M Dean, Roger Adams, Julia M Hush
Quantitative sensory tests (QSTs) have been increasingly used to investigate alterations in somatosensory function in a wide range of painful conditions. The interpretation of these findings is based on the assumption that the measures are stable and reproducible. To date, reliability of QST has been investigated for short test-retest intervals. The aim of this study was to investigate the long-term reliability of a multimodal QST assessment in healthy people, with testing conducted on 3 occasions over 4 months...
April 19, 2017: Pain
https://www.readbyqxmd.com/read/28302148/thermal-quantitative-sensory-testing-in-healthy-dutch-children-and-adolescents-standardized-test-paradigm-and-dutch-reference-values
#17
Gerbrich E van den Bosch, Monique van Dijk, Dick Tibboel, Abraham J Valkenburg
BACKGROUND: Quantitative sensory testing (QST) is often used to measure children's and adults' detection- and pain thresholds in a quantitative manner. In children especially the Thermal Sensory Analyzer (TSA-II) is often applied to determine thermal detection and pain thresholds. As comparisons between studies are hampered by the different testing protocols used, we aimed to present a standard protocol and reference values for thermal detection- and pain thresholds in children. METHODS: Our standard testing protocol includes reaction time dependent and independent tests and takes about 14-18 min to complete...
March 16, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28301464/investigating-the-case-of-human-nose-shape-and-climate-adaptation
#18
Arslan A Zaidi, Brooke C Mattern, Peter Claes, Brian McEcoy, Cris Hughes, Mark D Shriver
The evolutionary reasons for variation in nose shape across human populations have been subject to continuing debate. An import function of the nose and nasal cavity is to condition inspired air before it reaches the lower respiratory tract. For this reason, it is thought the observed differences in nose shape among populations are not simply the result of genetic drift, but may be adaptations to climate. To address the question of whether local adaptation to climate is responsible for nose shape divergence across populations, we use Qst-Fst comparisons to show that nares width and alar base width are more differentiated across populations than expected under genetic drift alone...
March 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28296936/spatial-analysis-improves-the-detection-of-early-corneal-nerve-fiber-loss-in-patients-with-recently-diagnosed-type-2-diabetes
#19
Dan Ziegler, Karsten Winter, Alexander Strom, Andrey Zhivov, Stephan Allgeier, Nikolaos Papanas, Iris Ziegler, Jutta Brüggemann, Bernd Ringel, Sabine Peschel, Bernd Köhler, Oliver Stachs, Rudolf F Guthoff, Michael Roden
Corneal confocal microscopy (CCM) has revealed reduced corneal nerve fiber (CNF) length and density (CNFL, CNFD) in patients with diabetes, but the spatial pattern of CNF loss has not been studied. We aimed to determine whether spatial analysis of the distribution of corneal nerve branching points (CNBPs) may contribute to improving the detection of early CNF loss. We hypothesized that early CNF decline follows a clustered rather than random distribution pattern of CNBPs. CCM, nerve conduction studies (NCS), and quantitative sensory testing (QST) were performed in a cross-sectional study including 86 patients recently diagnosed with type 2 diabetes and 47 control subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28287532/dynamic-quantitative-sensory-testing-to-characterize-central-pain-processing
#20
Ian G Mackey, Eric A Dixon, Kevin Johnson, Jiang-Ti Kong
Central facilitation and modulation of incoming nociceptive signals play an important role in the perception of pain. Disruption in central pain processing is present in many chronic pain conditions and can influence responses to specific therapies. Thus, the ability to precisely describe the state of central pain processing has profound clinical significance in both prognosis and prediction. Because it is not practical to record neuronal firings directly in the human spinal cord, surrogate behavior tests become an important tool to assess the state of central pain processing...
February 16, 2017: Journal of Visualized Experiments: JoVE
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"