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https://www.readbyqxmd.com/read/28333258/anal-neoplasia-in-inflammatory-bowel-disease-classification-proposal-epidemiology-carcinogenesis-and-risk-management-perspectives
#1
Andrew Wisniewski, Jean-Francois Fléjou, Laurent Siproudhis, Laurent Abramowitz, Magali Svrcek, Laurent Beaugerie
Patients with inflammatory bowel disease (IBD) may develop, similarly to individuals from general population, rare cases of HPV-related anal canal squamous cell carcinoma (SCC) and their intra-epithelial precursor lesions, as well as very rare cases of anal canal adenocarcinoma. Patients with chronic perianal Crohn's disease (CD) are at substantial risk of developing SCC or adenocarcinoma from the fistula-lining epithelium, as well as SCC or adenocarcinoma arising from chronic anorectal ulcerations or strictures...
March 10, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28316113/the-utility-of-exercise-testing-in-risk-stratification-of-asymptomatic-patients-with-type-1-brugada-pattern
#2
Muthiah Subramanian, Mukund A Prabhu, M S Harikrishnan, Saritha S Shekhar, Praveen G Pai, K U Natarajan
INTRODUCTION: Risk stratification of asymptomatic patients with a Brugada type 1 ECG pattern remains an unresolved clinical conundrum. In contrast to provocative pharmacological testing in Brugada syndrome, there is limited data on the role of exercise stress testing as a risk stratification modality. The objective of this study was to evaluate the utility of exercise testing in asymptomatic patients with type 1 Brugada pattern to prognosticate major arrhythmic events(MAE) during follow-up...
March 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28301778/risk-stratified-versus-non-risk-stratified-diagnostic-testing-for-management-of-suspected-acute-biliary-obstruction-comparative-effectiveness-costs-and-the-role-of-mr-cholangiopancreatography
#3
Stella K Kang, David Hoffman, Bart Ferket, Michelle I Kim, R Scott Braithwaite
Purpose To analyze the cost effectiveness of the American Society for Gastrointestinal Endoscopy (ASGE) risk stratification guidelines versus magnetic resonance (MR) cholangiopancreatography-based treatment of patients with possible choledocholithiasis. Materials and Methods A decision-analytic model was constructed to compare cost and effectiveness of three diagnostic strategies for gallstone disease with possible choledocholithiasis: noncontrast MR cholangiopancreatography, contrast material-enhanced MR imaging/MR cholangiopancreatography, and ASGE risk stratification guidelines for diagnostic evaluation recommending endoscopy (high risk), MR cholangiopancreatography (intermediate risk), or no test (low risk)...
March 16, 2017: Radiology
https://www.readbyqxmd.com/read/28297624/genomics-of-acute-myeloid-leukemia-diagnosis-and-pathways
#4
Lars Bullinger, Konstanze Döhner, Hartmut Döhner
In recent years, our understanding of the molecular pathogenesis of myeloid neoplasms, including acute myeloid leukemia (AML), has been greatly advanced by genomics discovery studies that use novel high-throughput sequencing techniques. AML, similar to most other cancers, is characterized by multiple somatically acquired mutations that affect genes of different functional categories, a complex clonal architecture, and disease evolution over time. Patterns of mutations seem to follow specific and temporally ordered trajectories...
March 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28295609/serum-galectin-3-level-as-a-marker-of-thrombogenicity-in-atrial-fibrillation
#5
Duygu Kocyigit, Kadri Murat Gurses, Muhammed Ulvi Yalcin, Hande Canpinar, Ugur Canpolat, Banu Evranos, Hikmet Yorgun, Necla Ozer, Dicle Guc, Kudret Aytemir
BACKGROUND: Left atrial appendage flow velocity (LAAFV) and presence of spontaneous echo contrast (SEC) have been reported to be predictors of thromboembolism in atrial fibrillation (AF) patients. Galectin-3 is a biomarker reflecting pro-inflammatory status, whose role in AF has recently drawn attention, particularly in persistent AF population. AIM: In this study we aimed to investigate the association between serum galectin-3 levels and echocardiographic predictors of thromboembolism in persistent AF patients...
March 13, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28289067/association-of-ckd-with-outcomes-among-patients-undergoing-transcatheter-aortic-valve-implantation
#6
Florian Lüders, Klaus Kaier, Gerrit Kaleschke, Katrin Gebauer, Matthias Meyborg, Nasser M Malyar, Eva Freisinger, Helmut Baumgartner, Holger Reinecke, Jochen Reinöhl
BACKGROUND AND OBJECTIVES: Despitethe multiple depicted associations of CKD with reduced cardiovascular and overall prognoses, the association of CKD with outcome of patients undergoing transcatheter aortic valve implantation has still not been well described. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Data from all hospitalized patients who underwent transcatheter aortic valve implantation procedures between January 1, 2010 and December 31, 2013 in Germany were evaluated regarding influence of CKD, even in the earlier stages, on morbidity, in-hospital outcomes, and costs...
March 13, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28282995/understanding-copd-overlap-syndromes
#7
Tuang Yeow Poh, Micheál Mac Aogáin, Adrian Kwok Wai Chan, Anthony Chau Ang Yii, Valerie Fei Lee Yong, Pei Yee Tiew, Mariko Siyue Koh, Sanjay Haresh Chotirmall
Chronic obstructive pulmonary disease accounts for a large burden of lung disease. It can 'overlap' with other respiratory diseases including bronchiectasis, fibrosis and obstructive sleep apnea (OSA). While COPD alone confers morbidity and mortality, common features with contrasting clinical outcomes can occur in COPD 'overlap syndromes'. Areas covered: Given the large degree of heterogeneity in COPD, individual variation to treatment is adopted based on its observed phenotype, which in turn overlaps with features of other respiratory disease states such as asthma...
March 24, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28280699/contrast-induced-acute-kidney-injury-in-kidney-transplant-recipients-a-systematic-review-and-meta-analysis
#8
Wisit Cheungpasitporn, Charat Thongprayoon, Michael A Mao, Shennen A Mao, Matthew R D'Costa, Wonngarm Kittanamongkolchai, Kianoush B Kashani
AIM: To evaluate the incidence of contrast-induced acute kidney injury (CIAKI) in kidney transplant recipients. METHODS: A literature search was performed using MEDLINE, EMBASE, and the Cochrane Database of Systematic Reviews from the inception of the databases through July 2016. Studies assessing the incidence of CIAKI in kidney transplant recipients were included. We applied a random-effects model to estimate the incidence of CIAKI. RESULTS: Six studies of 431 kidney transplant recipients were included in the analyses to assess the incidence of CIAKI in kidney transplant recipients...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28279985/restriction-spectrum-imaging-improves-risk-stratification-in-patients-with-glioblastoma
#9
A P Krishnan, R Karunamuni, K M Leyden, T M Seibert, R L Delfanti, J M Kuperman, H Bartsch, P Elbe, A Srikant, A M Dale, S Kesari, D E Piccioni, J A Hattangadi-Gluth, N Farid, C R McDonald, N S White
BACKGROUND AND PURPOSE: ADC as a marker of tumor cellularity has been promising for evaluating the response to therapy in patients with glioblastoma but does not successfully stratify patients according to outcomes, especially in the upfront setting. Here we investigate whether restriction spectrum imaging, an advanced diffusion imaging model, performed after an operation but before radiation therapy, could improve risk stratification in patients with newly diagnosed glioblastoma relative to ADC...
March 9, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28270681/editorial-not-all-nodules-are-created-equal-a-personalized-approach-to-indeterminate-2%C3%A2-cm-nodules-identified-on-hcc-surveillance
#10
Binu V John, Korosh Khalili
Indeterminate small (<2 cm) nodules are often discovered in cirrhotics who undergo contrast enhanced imaging for further characterization of lesions detected on ultrasound surveillance for hepatocellular carcinoma (HCC). These are either arterially enhancing (without venous washout or capsule) or are non-enhancing (with washout). Differentials include small HCCs (14-23%), atypical arterio-portal shunts, regenerative, and dysplastic nodules. A risk score that combines imaging features (arterial enhancement and nodule size) with clinical (age, prior h/o HCC) and laboratory features (albumin, AFP, hepatitis B 'e' antigen) appear to be superior to radiological features alone in the risk stratification of these nodules...
March 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28262800/the-influence-of-population-stratification-on-genetic-markers-associated-with-type-1-diabetes
#11
Karla Fabiana Brasil Gomes, Aritânia Sousa Santos, Cintia Semzezem, Márcia Regina Correia, Luciano Abreu Brito, Marcelo Ortega Ruiz, Rosa Tsuneshiro Fukui, Sergio Russo Matioli, Maria Rita Passos-Bueno, Maria Elizabeth Rossi da Silva
Ethnic admixtures may interfere with the definition of type 1 diabetes (T1D) risk determinants. The role of HLA, PTPN22, INS-VNTR, and CTLA4 in T1D predisposition was analyzed in Brazilian T1D patients (n = 915), with 81.7% self-reporting as white and 789 controls (65.6% white). The results were corrected for population stratification by genotyping 93 ancestry informative markers (AIMs) (BeadXpress platform). Ancestry composition and structural association were characterized using Structure 2.3 and STRAT...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224273/over-expression-of-mir-196b-5p-is-significantly-associated-with-the-progression-of-myelodysplastic-syndrome
#12
Jing Wen, Ying Huang, Hongying Li, Xupai Zhang, Peng Cheng, Donghong Deng, Zhigang Peng, Jun Luo, Weihua Zhao, Yongrong Lai, Zhenfang Liu
Myelodysplastic syndrome (MDS) is a clonal stem cell disorder characterized by ineffective hematopoiesis with a high risk of transformation to acute myeloid leukemia (AML). miRNAs function as tumor suppressors and oncogenes in various cancers and regulate the differentiation potential of hematopoietic stem and progenitor cells (HSPCs). It has been suggested that miRNAs may play an important role in progression of MDS. We analyzed bone marrow samples collected from MDS patients according to different risk stratification indicated by the International Prognostic Scoring System (IPSS)...
February 21, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28201871/targeted-contrast-agent-specific-to-an-oncoprotein-in-tumor-microenvironment-with-the-potential-for-detection-and-risk-stratification-of-prostate-cancer-with-mri
#13
Zheng Han, Yajuan Li, Sarah Roelle, Zhuxian Zhou, Yuchi Liu, Rob Sabatelle, Aidan DeSanto, Xin Yu, Hui Zhu, Cristina Magi-Galluzzi, Zheng-Rong Lu
Accurate detection and risk stratification are paramount to the clinical management of prostate cancer. Current diagnostic methods, including prostate specific antigen (PSA) screening, are unable to differentiate high-risk tumors from low-risk tumors, resulting in overdiagnosis and overtreatment. A peptide targeted contrast agent, ZD2-Gd(HP-DO3A), specific to an oncoprotein in tumor microenvironment, EDB-FN, was synthesized for noninvasive detection and characterization of aggressive prostate cancer. EDB-FN, one of the subtypes of oncofetal fibronectin, is involved in tumor epithelial-to-mesenchymal transition (EMT), which is implicated in drug resistance and metastasis...
March 9, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28188427/the-prognostic-value-of-right-ventricular-long-axis-strain-in-non-ischaemic-dilated-cardiomyopathies-using-standard-cardiac-magnetic-resonance-imaging
#14
Nisha Arenja, Johannes H Riffel, Manuel Halder, Charly N Djiokou, Thomas Fritz, Florian Andre, Fabian Aus dem Siepen, Thomas Zelniker, Benjamin Meder, Elham Kayvanpour, Grigorios Korosoglou, Hugo A Katus, Sebastian J Buss
OBJECTIVE: To investigate the association of right ventricular long axis strain (RV-LAS), a parameter of longitudinal function, with outcome in patients with non-ischaemic dilated cardiomyopathy (NIDCM). METHODS: In 441 patients with NIDCM, RV-LAS was analysed retrospectively by measuring the length between the epicardial border of the left ventricular apex and the middle of a line connecting the origins of the tricuspidal valve leaflets in end-diastole and end-systole on non-contrast standard cine sequences...
February 10, 2017: European Radiology
https://www.readbyqxmd.com/read/28187730/adherence-to-treatment-guidelines-the-association-between-stroke-risk-stratified-comparing-chads2-and-cha2ds2-vasc-score-levels-and-warfarin-prescription-for-adult-patients-with-atrial-fibrillation
#15
Scott A Chapman, Catherine A St Hill, Meg M Little, Michael T Swanoski, Shellina R Scheiner, Kenric B Ware, M Nawal Lutfiyya
BACKGROUND: Ischemic stroke is a risk associated with atrial fibrillation (AF) and is estimated to occur five times more often in afflicted patients than in those without AF. Anti-thrombotic therapy is recommended for the prevention of ischemic stroke. Risk stratification tools, such as the CHADS2, and more recently the CHA2DS2-VASc, for predicting stroke in patients with AF have been developed to determine the level of stroke risk and assist clinicians in the selection of antithrombotic therapy...
February 11, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28185422/the-association-of-the-hla-a-24-02-b-39-01-and-b-39-06-alleles-with-type-1-diabetes-is-restricted-to-specific-hla-dr-dq-haplotypes-in-finns
#16
M-L Mikk, T Heikkinen, M I El-Amir, M Kiviniemi, A-P Laine, T Härkönen, R Veijola, J Toppari, M Knip, J Ilonen
BACKGROUND: We analysed the previously reported association of the HLA-A*24:02, B*18 and B*39 alleles with type 1 diabetes and diabetes associated autoimmunity in the Finnish population applying HLA-DR/DQ stratification. MATERIALS & METHODS: Haplotype transmission was analysed in 2424 nuclear families from the Finnish Paediatric Diabetes Register. Survival analysis was applied to study the development of islet autoantibodies and further progression to clinical diabetes in the prospective follow-up cohort from the Finnish Type 1 Diabetes Prediction and Prevention (DIPP) Study...
April 2017: HLA
https://www.readbyqxmd.com/read/28177873/prognostic-mutations-in-myelodysplastic-syndrome-after-stem-cell-transplantation
#17
R Coleman Lindsley, Wael Saber, Brenton G Mar, Robert Redd, Tao Wang, Michael D Haagenson, Peter V Grauman, Zhen-Huan Hu, Stephen R Spellman, Stephanie J Lee, Michael R Verneris, Katharine Hsu, Katharina Fleischhauer, Corey Cutler, Joseph H Antin, Donna Neuberg, Benjamin L Ebert
Background Genetic mutations drive the pathogenesis of the myelodysplastic syndrome (MDS) and are closely associated with clinical phenotype. Therefore, genetic mutations may predict clinical outcomes after allogeneic hematopoietic stem-cell transplantation. Methods We performed targeted mutational analysis on samples obtained before transplantation from 1514 patients with MDS who were enrolled in the Center for International Blood and Marrow Transplant Research Repository between 2005 and 2014. We evaluated the association of mutations with transplantation outcomes, including overall survival, relapse, and death without relapse...
February 9, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28160261/imaging-of-the-ulcerated-carotid-atherosclerotic-plaque-a-review-of-the-literature
#18
REVIEW
Vasileios Rafailidis, Ioannis Chryssogonidis, Thomas Tegos, Konstantinos Kouskouras, Afroditi Charitanti-Kouridou
Carotid atherosclerotic disease constitutes a major modern health problem whose diagnosis primarily relies on imaging. Grading of stenosis has been long used as the main factor for risk stratification and guiding of management. Nevertheless, increasing evidence has shown that additional plaque characteristics such as plaque composition and surface morphology play an important role in the occurrence of symptoms, justifying the term "vulnerable plaque". Carotid plaque surface characteristics either in the form of surface irregularities or ulceration represent an important factor of vulnerability and are associated with the occurrence of neurologic symptoms...
February 3, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28152245/vessel-wall-and-adventitial-dce-mri-parameters-demonstrate-similar-correlations-with-carotid-plaque-microvasculature-on-histology
#19
Raf H M van Hoof, Stefan A Vöö, Judith C Sluimer, Nicky J A Wijnen, Evelien Hermeling, Floris H B M Schreuder, Martine T B Truijman, Jack P M Cleutjens, Mat J A P Daemen, Jan-Willem H Daemen, Robert J van Oostenbrugge, Werner H Mess, Joachim E Wildberger, Sylvia Heeneman, M Eline Kooi
PURPOSE: To assess parameter agreement of volume transfer coefficient (K(trans) ) between two vascular regions and to study the correlation with microvessel density on histology. The dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) parameter K(trans) is frequently used to study atherosclerotic plaque microvasculature. K(trans) has been reported using different descriptive statistics (mean, median, 75(th) percentile) either for the whole vessel wall or the adventitia in previous studies...
February 2, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28140366/low-dose-dynamic-myocardial-perfusion-ct-image-reconstruction-using-pre-contrast-normal-dose-ct-scan-induced-structure-tensor-total-variation-regularization
#20
Changfei Gong, Ce Han, Guanghui Gan, Zhenxiang Deng, Yongqiang Zhou, Jinling Yi, Xiaomin Zheng, Congying Xie, Xiance Jin
Dynamic myocardial perfusion CT (DMP-CT) imaging provides quantitative functional information for diagnosis and risk stratification of coronary artery disease by calculating myocardial perfusion hemodynamic parameter (MPHP) maps. However, the level of radiation delivered by dynamic sequential scan protocol can be potentially high. The purpose of this work is to develop a pre-contrast normal-dose scan induced structure tensor total variation regularization based on the penalized weighted least-squares (PWLS) criteria to improve the image quality of DMP-CT with a low-mAs CT acquisition...
April 7, 2017: Physics in Medicine and Biology
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