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https://www.readbyqxmd.com/read/28346578/association-of-plasma-neurofilament-light-with-neurodegeneration-in-patients-with-alzheimer-disease
#1
Niklas Mattsson, Ulf Andreasson, Henrik Zetterberg, Kaj Blennow
Importance: Existing cerebrospinal fluid (CSF) or imaging (tau positron emission tomography) biomarkers for Alzheimer disease (AD) are invasive or expensive. Biomarkers based on standard blood test results would be useful in research, drug development, and clinical practice. Plasma neurofilament light (NFL) has recently been proposed as a blood-based biomarker for neurodegeneration in dementias. Objective: To test whether plasma NFL concentrations are increased in AD and associated with cognitive decline, other AD biomarkers, and imaging evidence of neurodegeneration...
March 27, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28346504/diagnostic-accuracy-of-two-multiplex-real-time-polymerase-chain-reaction-assays-for-the-diagnosis-of-meningitis-in-children-in-a-resource-limited-setting
#2
Jermaine Khumalo, Mark Nicol, Diana Hardie, Rudzani Muloiwa, Phindile Mteshana, Colleen Bamford
INTRODUCTION: Accurate etiological diagnosis of meningitis is important, but difficult in resource-limited settings due to prior administration of antibiotics and lack of viral diagnostics. We aimed to develop and validate 2 real-time multiplex PCR (RT-PCR) assays for the detection of common causes of community-acquired bacterial and viral meningitis in South African children. METHODS: We developed 2 multiplex RT- PCRs for detection of S. pneumoniae, N. meningitidis, H...
2017: PloS One
https://www.readbyqxmd.com/read/28346251/histological-mohs-maps-improve-the-accuracy-of-dermatology-residents-interpretations-of-mohs-slides-a-pilot-study
#3
Jeffrey B Tiger, Zai Ganesh, John Mouzakis, Satori Iwamoto
BACKGROUND: Effective Mohs surgery depends on accurate histopathological identification and mapping of tumor burden to ensure complete removal of tumor. OBJECTIVE: The purpose of this study is to evaluate whether using a photograph of the histopathological slide as the Mohs map improves mapping accuracy. METHODS AND MATERIALS: Single-blinded pilot study. Five dermatology residents at one academic institution mapped 11 cases of basal cell carcinoma using both traditional hand-drawn maps and color photographic maps...
March 23, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28346223/early-rectal-cancer-a-choice-between-local-excision-and-transabdominal-resection-a-review-of-the-literature-and-current-guidelines
#4
Giuseppe Pappalardo, Massimo Chiaretti
INTRODUCTION: Indication for Local Excision (LE) or Trans Abdominal Resections with Total Mesorectal Excision (TAR) in Early Rectal Cancer (ERC) are still controversial. MATERIAL OF STUDY: We reviewed meta-analyses, scientific societies guidelines, randomized and controlled clinical trials from 1999 to 2016 for a total of 146,231 patients. We included in our analysis the accuracy of different tools of investigation, the reliability of the endoscopic biopsies and compared the results of the various LE and TAR...
March 27, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28345887/from-detection-to-resection-photoacoustic-tomography-and-surgery-guidance-with-au-liposome-icg-nanoparticles-in-liver-cancer
#5
Tianpei Guan, Wenting Shang, Hui Li, Xin Yang, Chihua Fang, Jie Tian, Kun Wang
Conventional imaging methods encounter challenges in diagnosing liver cancer that is less than 10 mm and/or without typical hypervascular features. With deep penetration and high spatial resolution imaging capability, the emerging photoacoustic tomography may offer better diagnostic efficacy for non-invasive liver cancer detection. Moreover, near-infrared fluorescence imaging guided hepatectomy was proven to be able to identify nodules at millimeter level. Thus, suitable photoacoustic and fluorescence dual-modality imaging probe may benefit patients in early diagnosis and complete resection...
March 27, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28345071/jolt-accentuation-and-its-value-as-a-sign-in-diagnosis-of-meningitis-in-patients-with-fever-and-headache
#6
Mani Mofidi, Narges Negaresh, Davood Farsi, Mahdi Rezai, Babak Mahshidfar, Saeed Abbasi, Peyman Hafezimoghadam
OBJECTIVES: Meningitis is an important disease among the patients being visited in Emergency Departments (EDs). There are many signs to diagnose it with different sensitivity and specificity reported in previously done studies. Current study tries to evaluate diagnostic accuracy of "Jolt accentuation" in the diagnosis (Dx.) of meningitis in patients with fever and headache. MATERIALS AND METHODS: 48 adult patients, who were referred to two teaching EDs for fever and headache and were diagnosed as suspected meningitis, were included in this prospective observational study...
March 2017: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28344791/differential-diagnosis-of-solid-pancreatic-masses-contrast-enhanced-harmonic-ceh-eus-quantitative-elastography-qe-eus-or-both
#7
Julio Iglesias-Garcia, Björn Lindkvist, Jose Lariño-Noia, Ihab Abdulkader-Nallib, J Enrique Dominguez-Muñoz
BACKGROUND: Contrast-enhanced harmonic endoscopic ultrasound (CEH-EUS) and quantitative-elastography endoscopic ultrasound (QE-EUS) are considered useful tools for the evaluation of solid pancreatic tumors (SPT). The aim of our study was to evaluate the diagnostic accuracy of CEH-EUS, QE-EUS, and the combination of both for the differential diagnosis of SPT. METHODS: Sixty-two consecutive patients (mean age 64.3 years, range 32-89 years, 44 male) who underwent EUS for the evaluation of SPT were prospectively included...
March 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28344686/comparison-of-image-quality-diagnostic-accuracy-and-radiation-dose-between-flash-model-and-retrospective-ecg-triggered-protocols-in-dual-source-computed-tomography-dsct-in-congenital-heart-diseases
#8
Rong Wang, Xiang-Jiu Xu, Gang Huang, Xing Zhou, Wen-Wen Zhang, Ya-Qiong Ma, Xiao-Na Zuo
BACKGROUND: Dual source computed tomography (DSCT) plays an important role in the diagnosis of congenital heart diseases (CHD). However, the issue of radiation-related side effects constitutes a wide public concern. The aim of the study was to explore the differences in diagnostic accuracy, radiation dose and image quality between a prospectively ECG - triggered high - pitch spiral acquisition (flash model) and a retrospective ECG-gated protocol of DSCT used for the detection of CHD. MATERIAL/METHODS: The study included 58 patients with CHD who underwent a DSCT examination, including two groups of 29 patients in each protocol...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28344614/do-we-need-invasive-confirmation-of-cardiac-magnetic-resonance-results
#9
Paweł Siastała, Jacek Kądziela, Łukasz A Małek, Mateusz Śpiewak, Katarzyna Lech, Adam Witkowski
INTRODUCTION: Coronary artery revascularization is indicated in patients with documented significant obstruction of coronary blood flow associated with a large area of myocardial ischemia and/or untreatable symptoms. There are a few invasive or noninvasive methods that can provide information about the functional results of coronary artery narrowing. The application of more than one method of ischemia detection in one patient to reevaluate the indications for revascularization is used in case of atypical or no symptoms and/or borderline stenosis...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28343955/comparison-of-commercial-elisa-tests-for-the-detection-of-toxoplasma-antibodies-in-the-meat-juice-of-naturally-infected-pigs
#10
Elina Felin, Anu Näreaho, Maria Fredriksson-Ahomaa
Toxoplasmosis is a globally distributed protozoal zoonosis. Pigs are considered an important reservoir of Toxoplasma gondii and pork a major infection source of human toxoplasmosis. ELISA methods are commonly used diagnostic tools for detecting Toxoplasma infections. They are also used for slaughterhouse-based serological monitoring of toxoplasmosis in pigs to identify positive farms. The methods used are non-standardised with varying sensitivity and specificity. In our study, four commercial ELISA tests for the detection of Toxoplasma antibodies in the meat juice of slaughter pigs were compared with a modified agglutination test (MAT) as a reference...
March 12, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28343870/cd15-focus-score-infection-diagnosis-and-stratification-into-low-virulence-and-high-virulence-microbial-pathogens-in-periprosthetic-joint-infection
#11
V T Krenn, M Liebisch, B Kölbel, N Renz, T Gehrke, M Huber, M G Krukemeyer, A Trampuz, H Resch, V Krenn
INTRODUCTION: The aim of the work was to validate the CD15 focus score for the infection pathology of periprosthetic joint infection in a large group and to clarify whether a stratification into low-virulence and high-virulence microbial pathogens is possible by means of the CD15 focus score (quantification of CD15 positive granulocytes). METHODS: The histopathology of 275 synovial tissue samples taken intraoperatively during revision operations (n=127 hip, n=141 knee, n=2 shoulder, n=5 ankle) was evaluated according to the SLIM consensus classification (SLIM=synovial-like interface membrane)...
January 12, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28343454/adhd-patients-fail-to-maintain-task-goals-in-face-of-subliminally-and-consciously-induced-cognitive-conflicts
#12
K Gohil, A Bluschke, V Roessner, A-K Stock, C Beste
BACKGROUND: Attention deficit hyperactivity disorder (ADHD) patients have been reported to display deficits in action control processes. While it is known that subliminally and consciously induced conflicts interact and conjointly modulate action control in healthy subjects, this has never been investigated for ADHD. METHOD: We investigated the (potential) interaction of subliminally and consciously triggered response conflicts in children with ADHD and matched healthy controls using neuropsychological methods (event-related potentials; ERPs) to identify the involved cognitive sub-processes...
March 27, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28343416/cuff-leak-test-for-the-diagnosis-of-post-extubation-stridor
#13
David Schnell, Benjamin Planquette, Asaël Berger, Sybille Merceron, Julien Mayaux, Lucas Strasbach, Stéphane Legriel, Sandrine Valade, Michael Darmon, Ferhat Meziani
BACKGROUND: Cuff leak test was developed to predict the occurrence of post-extubation stridor (PES). This study evaluated the diagnostic performance of this test in unselected critically ill patients. METHODS: Multicenter prospective study including unselected ventilated patients at the time of their first planned extubation. The diagnostic performance of 4 different cuff leak tests was assessed. RESULTS: Post-extubation stridor occurred in 34 (9...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28343224/the-evidence-of-acute-kidney-injury-in-the-community-and-for-primary-care-interventions
#14
Lauren Emmett, James Tollitt, Sheila McCorkindale, Smeeta Sinha, Dimitrios Poulikakos
BACKGROUND: Almost two-thirds of patients with acute kidney injury (AKI) damage their kidneys whilst in the community. This paper aims to review existing data on incidence, mortality, and morbidity of AKI within the community and explore the evidence base for primary care strategies aimed at reducing incidence and improving early detection and management of AKI. METHODS: A literature search was carried out using PubMed; key words including AKI, primary care, community acquired, and electronic alerts (e-alerts) were used to capture relevant data...
March 25, 2017: Nephron
https://www.readbyqxmd.com/read/28342776/effect-of-needle-size-in-ultrasound-guided-core-needle-breast-biopsy-comparison-of-14-16-and-18-gauge-needles
#15
Michela Giuliani, Pierluigi Rinaldi, Rossella Rella, Gina Fabrizi, Federica Petta, Giorgio Carlino, Alba Di Leone, Antonino Mulè, Enida Bufi, Maurizio Romani, Paolo Belli, Lorenzo Bonomo
INTRODUCTION: The aim of the present study was to assess the diagnostic accuracy of ultrasound-guided core needle biopsy (US-CNB) of breast lesions, comparing smaller needles (16- and 18-gauge) with the 14-gauge needle, and to analyze the lesion characteristics influencing US-CNB diagnostic performance. PATIENTS AND METHODS: All the patients provided informed consent before the biopsy procedure. The data from breast lesions that had undergone US-CNB in our institution from January 2011 to January 2015 were retrospectively reviewed...
March 6, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28342715/prediction-of-neonatal-respiratory-morbidity-by-quantitative-ultrasound-lung-texture-analysis-a-multicenter-study
#16
Montse Palacio, Elisenda Bonet-Carne, Teresa Cobo, Alvaro Perez-Moreno, Joan Sabrià, Jute Richter, Marian Kacerovsky, Bo Jacobsson, Raúl A García-Posada, Fernando Bugatto, Ramon Santisteve, Àngels Vives, Mauro Parra-Cordero, Edgar Hernandez-Andrade, José Luis Bartha, Pilar Carretero-Lucena, Kai Lit Tan, Rogelio Cruz-Martínez, Minke Burke, Suseela Vavilala, Igor Iruretagoyena, Juan Luis Delgado, Mauro Schenone, Josep Vilanova, Francesc Botet, George Sh Yeo, Jon Hyett, Jan Deprest, Roberto Romero, Eduard Gratacos
BACKGROUND: Prediction of neonatal respiratory morbidity may be useful to plan delivery in complicated pregnancies. The limited predictive performance of the current diagnostic tests together with the risks of an invasive procedure, limit the use of fetal lung maturity assessment. OBJECTIVE: To evaluate the performance of quantitative ultrasound texture analysis (quantusFLM®) to predict neonatal respiratory morbidity in preterm and early-term (<39.0 weeks) deliveries ...
March 22, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28342697/recent-publications-from-the-alzheimer-s-disease-neuroimaging-initiative-reviewing-progress-toward-improved-ad-clinical-trials
#17
REVIEW
Michael W Weiner, Dallas P Veitch, Paul S Aisen, Laurel A Beckett, Nigel J Cairns, Robert C Green, Danielle Harvey, Clifford R Jack, William Jagust, John C Morris, Ronald C Petersen, Andrew J Saykin, Leslie M Shaw, Arthur W Toga, John Q Trojanowski
INTRODUCTION: The Alzheimer's Disease Neuroimaging Initiative (ADNI) has continued development and standardization of methodologies for biomarkers and has provided an increased depth and breadth of data available to qualified researchers. This review summarizes the 450+ publications using ADNI data during 2014 and 2015. METHODS: We used standard searches to find publications using ADNI data. RESULTS: (1) Structural and functional changes, including subtle changes to hippocampal shape and texture, atrophy in areas outside of hippocampus, and disruption to functional networks, are detectable in presymptomatic subjects before hippocampal atrophy; (2) In subjects with abnormal β-amyloid deposition (Aβ+), biomarkers become abnormal in the order predicted by the amyloid cascade hypothesis; (3) Cognitive decline is more closely linked to tau than Aβ deposition; (4) Cerebrovascular risk factors may interact with Aβ to increase white-matter (WM) abnormalities which may accelerate Alzheimer's disease (AD) progression in conjunction with tau abnormalities; (5) Different patterns of atrophy are associated with impairment of memory and executive function and may underlie psychiatric symptoms; (6) Structural, functional, and metabolic network connectivities are disrupted as AD progresses...
March 22, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28342384/utility-and-diagnostic-accuracy-of-bedside-lung-ultrasonography-during-medical-emergency-team-met-activations-for-respiratory-deterioration
#18
Soumitra Sen, Ghazwan Acash, Akmal Sarwar, Yuxiu Lei, James M Dargin
PURPOSE: We investigated the feasibility and diagnostic accuracy of lung ultrasonography during medical emergency team (MET) activations for respiratory deterioration. MATERIAL AND METHODS: We performed a prospective study of inpatients requiring MET evaluation for respiratory decompensation. A blinded investigator recorded videos of lung and lower extremity ultrasonography. The videos were reviewed by blinded investigators to determine a ultrasonography diagnosis...
March 16, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28342279/learning-effect-on-perinatal-post-mortem-magnetic-resonance-imaging-reporting-single-reporter-diagnostic-accuracy-of-200-cases
#19
Clare Ashwin, J Ciaran Hutchinson, Xin Kang, Dean Langan, Rod Jones, Wendy Norman, Mieke Cannie, Jacques Jani, Neil J Sebire, Owen J Arthurs
OBJECTIVES: To compare diagnostic accuracy of perinatal post mortem magnetic resonance imaging (PMMR) against conventional autopsy, when reported by a single blinded observer for all organ systems following a period of initial experience. METHODS: We compared pre-autopsy PMMR to conventional autopsy for the detection of: (a) major pathological abnormalities related to the cause of death; and (b) all diagnostic findings in five different body organ systems. PMMR was reported blinded to autopsy findings...
March 25, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28342102/the-value-of-gadoxetic-acid-enhanced-mri-for-differentiation-between-hepatic-microabscesses-and-metastases-in-patients-with-periampullary-cancer
#20
Seo-Youn Choi, Young Kon Kim, Ji Hye Min, Dong Ik Cha, Woo Kyoung Jeong, Won Jae Lee
OBJECTIVES: We aimed to identify features that differentiate hepatic microabscess from hepatic metastasis on gadoxetic acid-enhanced MRI in patients with periampullary cancer. METHODS: We included 72 patients (31 patients with 83 hepatic microabscesses and 41 patients with 71 hepatic metastases) who had a history of periampullary cancer and underwent gadoxetic acid-enhanced MRI. Image analysis was performed for margin, signal intensity, rim enhancement, perilesional hyperaemia, pattern on DWI and dynamic phases, and size discrepancy between sequences by consensus of two observers...
March 24, 2017: European Radiology
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