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https://www.readbyqxmd.com/read/28449460/role-of-bronchoprovocation-tests-in-identifying-exercise-induced-bronchoconstriction-in-a-non-athletic-population-a-pilot-study
#1
Jessica H Y Tan, Wui Mei Chew, Therese S Lapperre, Gan Liang Tan, Chian Min Loo, Mariko S Koh
BACKGROUND: Studies on diagnostic tests for exercise-induced bronchoconstriction (EIB) have centered around the asthmatic and elite athletic population. Traditionally, the exercise challenge test (ET) was recommended to assess EIB. We aimed to compare the performance of surrogate testing, mainly the hypertonic saline (HS) test, and methacholine challenge test (MCT) versus ET in identifying EIB among non-athletic subjects. METHODS: We prospectively recruited subjects who did not have confirmed active asthma, but who reported exercise-induced dyspnoea...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28448949/utility-of-the-fitbit-flex-to-evaluate-sleep-in-major-depressive-disorder-a-comparison-against-polysomnography-and-wrist-worn-actigraphy
#2
Jesse D Cook, Michael L Prairie, David T Plante
BACKGROUND: Sleep disturbance is a common and important component of affective illness. Fitness activity trackers are emerging as alternative means to estimate sleep in psychiatric patients; however, their ability to quantify sleep in mood disorders has not been empirically evaluated. Thus, this study sought to evaluate the utility of the Fitbit Flex (FBF) to estimate sleep in patients with major depressive disorder (MDD) relative to gold standard polysomnography (PSG) and a widely-used actigraph (Actiwatch-2; AW-2)...
April 19, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28448399/quality-assessment-of-meta-analyses-published-in-leading-anesthesiology-journals-from-2005-to-2014
#3
Amber M Hall, Sandra Lee, David Zurakowski
Meta-analysis, when preceded by a systematic review, is considered the "gold standard" in data aggregation; however, the quality of meta-analyses is often questionable, leading to uncertainty about the accuracy of results. In this study, we evaluate the quality of meta-analyses published in 5 leading anesthesiology journals from 2005 to 2014. A total of 220 meta-analyses published in Anesthesiology, Pain, British Journal of Anaesthesia, Anaesthesia, or Anesthesia & Analgesia were identified for inclusion. The quality of each meta-analysis was determined using the Revised Assessment of Multiple Systematic Reviews (R-AMSTAR)...
April 24, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28448191/total-arterial-compliance-estimated-by-a-novel-method-is-better-related-to-left-ventricular-mass-compared-to-aortic-pulse-wave-velocity-the-safar-study
#4
Theodore G Papaioannou, Athanase D Protogerou, Antonis Argyris, Evangelia Aissopou, George Georgiopoulos, Efthimia Nasothimiou, Christos Tountas, Petros P Sfikakis, Nikolaos Stergiopulos, Dimitrios Tousoulis
The investigation of the association between total arterial compliance (CT)-estimated by a novel technique-with left ventricular mass (LVM) and hypertrophy (LVH). Our hypothesis was that CT may be better related to LVM compared to the gold-standard regional aortic stiffness. Within the frame of the ongoing cross-sectional study "SAFAR," 226 subjects with established hypertension or with suspected hypertension underwent blood pressure (BP) assessment, carotid-to-femoral pulse wave velocity (cf-PWV), and echocardiographic measurement of LVM...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28448011/turbidimetry-on-human-washed-platelets-the-effect-of-the-pannexin1-inhibitor-brilliant-blue-fcf-on-collagen-induced-aggregation
#5
Filippo Molica, Séverine Nolli, Pierre Fontana, Brenda Renata Kwak
Turbidimetry is a laboratory technique that is applied to measure the aggregation of platelets suspended in either plasma (platelet-rich plasma, PRP) or in buffer (washed platelets), by the use of one or a combination of agonists. The use of washed platelets separated from their plasma environment and in the absence of anticoagulants allows for studying intrinsic platelet properties. Among the large panel of agonists, arachidonic acid (AA), adenosine di-phosphate (ADP), thrombin and collagen are the most frequently used...
April 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447866/which-fecal-immunochemical-test-should-i-choose
#6
Jeanette M Daly, Yinghui Xu, Barcey T Levy
OBJECTIVES: To summarize the fecal immunochemical tests (FITs) available in the United States, the 2014 pathology proficiency testing (PT) program FIT results, and the literature related to the test characteristics of FITs available in the United States to detect advanced adenomatous polyps (AAP) and/or colorectal cancer (CRC). METHODS: Detailed review of the Food and Drug Administration's Clinical Laboratory Improvement Amendments (CLIA) database of fecal occult blood tests, the 2014 FIT PT program results, and the literature related to FIT accuracy...
April 1, 2017: Journal of Primary Care & Community Health
https://www.readbyqxmd.com/read/28447690/bacterial-magnetosomes-nature-s-powerful-contribution-to-mpi-tracer-research
#7
A Kraupner, D Eberbeck, D Heinke, R Uebe, D Schüler, A Briel
The magnetic particle spectrum (MPS) of bacterial magnetosomes, isolated from Magnetospirillum gryphiswaldense, is measured and compared to that of the current "gold standard", Resovist®. It is shown that the amplitudes of the magnetosomes' harmonics by far exceed that of Resovist®; the amplitude of the third harmonic is higher by a factor of 7, and is the highest value obtained for iron oxide nanoparticles to date.
April 27, 2017: Nanoscale
https://www.readbyqxmd.com/read/28447407/wiedemann-rautenstrauch-syndrome-a-phenotype-analysis
#8
Stefano Paolacci, Debora Bertola, José Franco, Shehla Mohammed, Marco Tartaglia, Bernd Wollnik, Raoul C Hennekam
Wiedemann-Rautenstrauch syndrome (WRS) is a neonatal progeroid disorder characterized by growth retardation, lipodystrophy, a distinctive face, and dental anomalies. Patients reported to date demonstrate a remarkable variability in phenotype, which hampers diagnostics. We performed a literature search, and analyzed 51 reported patients, using the originally reported patients as "gold standard." In 15 patients sufficient information and photographic evidence was available to confirm the clinical diagnosis. In 12 patients the diagnosis was suggestive but lack of data prevented a definite diagnosis, and in 24 patients an alternative diagnosis was likely...
April 26, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28447333/efficacy-and-tolerability-of-lithium-in-treating-acute-mania-in-youth-with-bipolar-disorder-protocol-for-a-systematic-review
#9
A Duffy, S Patten, S Goodday, A Weir, N Heffer, A Cipriani
BACKGROUND: Epidemiological, clinical, and high-risk studies have provided evidence that the peak period for onset of diagnosable episodes of mania and hypomania starts in mid-to-late adolescence. Moreover, clinically significant manic symptoms may occur even earlier, especially in children at familial risk. Lithium is the gold standard treatment for acute mania in adults, yet to our knowledge, there is no published systematic review assessing lithium treatment of mania in children or adolescents...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28447111/-diagnostics-and-treatment-of-osteoid-osteoma
#10
REVIEW
P Orth, D Kohn
BACKGROUND: Osteoid osteoma is the third most common benign bone tumor and typically induces pain that is worse at night. OBJECTIVE: To identify the epidemiological, pathogenetic, histological and radiological characteristics of osteoid osteoma and to present the broad variety of treatment options. MATERIAL AND METHODS: This review article summarizes relevant clinical studies and meta-analyses on this topic. RESULTS: Osteoid osteoma is characterized by a central nidus smaller than 1...
April 26, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28446977/endoscopic-management-of-esophageal-leaks
#11
REVIEW
Gabie K B Ong, Richard K Freeman
Traditionally, gold standard treatment for an acute esophageal perforation has been operative repair. Over the past two decades, there has been a paradigm shift towards the use of esophageal stents. Recent advances in biomaterial allowed a new generation of stents to be manufactured that combined (I) a non-permeable covering; (II) radial force sufficient to occlude a transmural esophageal injury and (III) improved ease of removability. The amalgamation of these developments set the stage for utilizing esophageal stents as part of the management algorithm of an acute esophageal perforation...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28446970/the-role-of-endobronchial-ultrasound-versus-mediastinoscopy-for-non-small-cell-lung-cancer
#12
REVIEW
Katarzyna Czarnecka-Kujawa, Kazuhiro Yasufuku
This review provides an update on the current role of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) and mediastinoscopy (Med) in assessment of patients with non-small cell lung cancer (NSCLC). Invasive mediastinal lymph node (LN) staging is the major application for both of these techniques. Up until recently, Med was the gold standard for invasive mediastinal LN staging in NSCLC. However, EBUS-TBNA has shown to be equivalent, and in some studies better than Med for invasive staging of lung cancer...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28446945/diffusion-tensor-imaging-for-glioma-grading-analysis-of-fiber-density-index
#13
Fariba Davanian, Fariborz Faeghi, Sohrab Shahzadi, Zahra Farshifar
INTRODUCTION: The most common primary tumors of brain are gliomas and tumor grading is essential for designing proper treatment strategies. The gold standard choice to determine grade of glial tumor is biopsy which is an invasive method. The purpose of this study was to investigate the role of fiber density index (FDi) by means of diffusion tensor imaging (DTI) (as a noninvasive method) in glial tumor grading. METHODS: A group of 20 patients with histologically confirmed diagnosis of gliomas were evaluated in this study...
January 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28446639/concordance-of-genomic-alterations-by-next-generation-sequencing-ngs-in-tumor-tissue-versus-circulating-tumor-dna-in-breast-cancer
#14
Young Kwang Chae, Andrew A Davis, Sarika Jain, Cesar Santa-Maria, Lisa Flaum, Nike Beaubier, Leonidas C Platanias, William Gradishar, Francis J Giles, Massimo Cristofanilli
While identifying genomic alterations in tumor tissue is the current gold-standard technique for molecular profiling, circulating tumor DNA (ctDNA) represents a non-invasive method of assessing genomic alterations using peripheral blood. The concordance of genomic alterations between two commercially-available ctDNA and tissue biopsies was compared in 45 patients with breast cancer using paired next-generation sequencing tissue and ctDNA biopsies. Across all genes, concordance between the two platforms was 91...
April 26, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28446246/the-role-of-rk39-serologic-test-in-the-diagnosis-of-visceral-leishmaniasis-in-a-tertiary-hospital-northern-ethiopia
#15
Yazezew Kebede Kiros, Bethlhem Feleke Regassa
BACKGROUND: The study is done in Ayder Referral Hospital in Northern Ethiopia. Ethiopia is one of the countries where visceral leishmaniasis (VL) is endemic. Diagnosis of VL in Ethiopia is primarily based on rK39 immunochromatographic (rk39-ICT) strip. This test has been shown to have variable sensitivity and specificity in different countries. Hence the objective of the study is to determine the sensitivity and specificity of rk39-ICT in the diagnosis of VL in our set up. The study participants were VL suspected patients admitted to the hospital...
April 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28446182/improving-preimplantation-genetic-diagnosis-pgd-reliability-by-selection-of-sperm-donor-with-the-most-informative-haplotype
#16
Mira Malcov, Veronica Gold, Sagit Peleg, Tsvia Frumkin, Foad Azem, Ami Amit, Dalit Ben-Yosef, Yuval Yaron, Adi Reches, Shimi Barda, Sandra E Kleiman, Leah Yogev, Ron Hauser
BACKGROUND: The study is aimed to describe a novel strategy that increases the accuracy and reliability of PGD in patients using sperm donation by pre-selecting the donor whose haplotype does not overlap the carrier's one. METHODS: A panel of 4-9 informative polymorphic markers, flanking the mutation in carriers of autosomal dominant/X-linked disorders, was tested in DNA of sperm donors before PGD. Whenever the lengths of donors' repeats overlapped those of the women, additional donors' DNA samples were analyzed...
April 26, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28445636/disposable-autonomous-device-for-rapid-swab-to-result-diagnosis-of-influenza
#17
Shichu Huang, Koji Abe, Steven Bennett, Tinny Liang, Paula D Ladd, Lindsay Yokobe, Caitlin E Anderson, Kamal Shah, Josh Bishop, Mike Purfield, Peter C Kauffman, Sai Paul, AnneMarie E Welch, Bonnie Strelitz, Kristin Follmer, Kelsey Pullar, Luis Sanchez-Erebia, Emily Gerth-Guyette, Gonzalo J Domingo, Eileen Klein, Janet A Englund, Elain Fu, Paul Yager
A prototype of a self-contained, automated, disposable device for chemically-amplified protein-based detection of influenza virus from nasal swab specimens was developed and evaluated in a clinical setting. The device required only simple specimen manipulation without any dedicated instrumentation or specialized training by the operator for interpretation. The device was based on a sandwich immunoassay for influenza virus nucleoprotein; it used an enzyme-labeled antibody and a chromogenic substrate to provide an amplified visible signal, in a two-dimensional paper network format...
April 26, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28445627/psychosocial-wellbeing-after-living-kidney-donation-a-longitudinal-prospective-study
#18
Hannah Maple, Joseph Chilcot, John Weinman, Nizam Mamode
Living kidney donation (LKD) has become routine practice across the world as the gold standard treatment of end-stage renal failure. Whilst the physical risks and harms of LKD surgery are well documented, relatively little is known about psychosocial outcomes. The aim of this study was to determine whether it was possible to quantify the psychosocial impact of LKD. A prospective longitudinal study of 93 living kidney donors was performed. Data were collected pre-operatively, and 3 and 12 months after donation...
April 26, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28445548/assessing-the-severity-of-sleep-apnea-syndrome-based-on-ballistocardiogram
#19
Zhu Wang, Xingshe Zhou, Weichao Zhao, Fan Liu, Hongbo Ni, Zhiwen Yu
BACKGROUND: Sleep Apnea Syndrome (SAS) is a common sleep-related breathing disorder, which affects about 4-7% males and 2-4% females all around the world. Different approaches have been adopted to diagnose SAS and measure its severity, including the gold standard Polysomnography (PSG) in sleep study field as well as several alternative techniques such as single-channel ECG, pulse oximeter and so on. However, many shortcomings still limit their generalization in home environment. In this study, we aim to propose an efficient approach to automatically assess the severity of sleep apnea syndrome based on the ballistocardiogram (BCG) signal, which is non-intrusive and suitable for in home environment...
2017: PloS One
https://www.readbyqxmd.com/read/28444709/male-bladder-outlet-obstruction-time-to-re-evaluate-the-definition-and-reconsider-our-diagnostic-pathway-ici-rs-2015
#20
REVIEW
Kevin Rademakers, Marcus J Drake, Andrew Gammie, Jens C Djurhuus, Peter F W M Rosier, Paul Abrams, Christopher Harding
The diagnosis of bladder outlet obstruction (BOO) in the male is dependent on measurements of pressure and flow made during urodynamic studies. The procedure of urodynamics and the indices used to delineate BOO are well standardized largely as a result of the work of the International Continence Society. The clinical utility of the diagnosis of BOO is however, less well defined and there are several shortcomings and gaps in the currently available medical literature. Consequently the International Consultation on Incontinence Research Society (ICI-RS) held a think tank session in 2015 entitled "Male bladder outlet obstruction: Time to re-evaluate the definition and reconsider our diagnostic pathway?" This manuscript details the discussions that took place within that think tank setting out the pros and cons of the current definition of BOO and exploring alternative clinical tests (alone or in combination) which may be useful in the future investigation of male patients with lower urinary tract symptoms...
April 2017: Neurourology and Urodynamics
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