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https://www.readbyqxmd.com/read/29331986/sex-differences-in-impact-of-coronary-artery-calcification-to-predict-coronary-artery-disease
#1
Yoko M Nakao, Yoshihiro Miyamoto, Masahiro Higashi, Teruo Noguchi, Mitsuru Ohishi, Isao Kubota, Hiroyuki Tsutsui, Tomohiro Kawasaki, Yutaka Furukawa, Michihiro Yoshimura, Hideaki Morita, Kunihiro Nishimura, Akiko Kada, Yoichi Goto, Tomonori Okamura, Chuwa Tei, Hitonobu Tomoike, Hiroaki Naito, Satoshi Yasuda
OBJECTIVE: To assess sex-specific differences regarding use of conventional risks and coronary artery calcification (CAC) to detect coronary artery disease (CAD) using coronary CT angiography (CCTA). METHODS: The Nationwide Gender-specific Atherosclerosis Determinants Estimation and Ischemic Cardiovascular Disease Prospective Cohort study is a prospective, multicentre, nationwide cohort study. Candidates with suspected CAD aged 50-74 years enrolled from 2008 to 2012...
January 13, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29322393/contribution-of-ammonia-oxidizing-archaea-and-ammonia-oxidizing-bacteria-to-ammonia-oxidation-in-two-nitrifying-reactors
#2
Papitchaya Srithep, Preeyaporn Pornkulwat, Tawan Limpiyakorn
In this study, two laboratory nitrifying reactors (NRI and NRII), which were seeded by sludge from different sources and operated under different operating conditions, were found to possess distinct dominant ammonia-oxidizing microorganisms. Ammonia-oxidizing archaeal (AOA) amoA genes outnumbered ammonia-oxidizing bacterial (AOB) amoA genes in reactor NRI, while only AOB amoA genes were detectable in reactor NRII. The AOA amoA gene sequences retrieved from NRI were characterized within the Nitrososphaera sister cluster of the group 1...
January 10, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29321850/bird-species-richness-is-associated-with-phylogenetic-relatedness-plant-species-richness-and-altitudinal-range-in-inner-mongolia
#3
Chenxia Liang, Gang Feng, Xingfeng Si, Lingfeng Mao, Guisheng Yang, Jens-Christian Svenning, Jie Yang
Bird species richness is mediated by local, regional, and historical factors, for example, competition, environmental heterogeneity, contemporary, and historical climate. Here, we related bird species richness with phylogenetic relatedness of bird assemblages, plant species richness, topography, contemporary climate, and glacial-interglacial climate change to investigate the relative importance of these factors. This study was conducted in Inner Mongolia, an arid and semiarid region with diverse vegetation types and strong species richness gradients...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29321236/midregional-proatrial-natriuretic-peptide-improves-risk-stratification-after-ischemic-stroke-association-with-mortality-and-cardioembolic-etiology
#4
Gian Marco De Marchis, Juliane Schneider, Anja Weck, Felix Fluri, Joachim Fladt, Christian Foerch, Beat Mueller, Andreas Luft, Mirjam Christ-Crain, Marcel Arnold, Mira Katan
OBJECTIVE: To validate midregional proatrial natriuretic peptide (MR-proANP) for outcome prediction and diagnosis of cardioembolic stroke etiology compared to established clinical variables. METHODS: In this prospective multicenter cohort study, we quantified MR-proANP levels in ischemic stroke patients within 24 hours of onset. Primary outcome measures were 90-day mortality, unfavorable functional outcome (modified Rankin Scale score >2), and cardioembolic stroke etiology diagnosed during hospitalization...
January 10, 2018: Neurology
https://www.readbyqxmd.com/read/29315062/invasive-breast-cancer-prognostic-value-of-peritumoral-edema-identified-at-preoperative-mr-imaging
#5
Hyejin Cheon, Hye Jung Kim, Tae Hun Kim, Hun-Kyu Ryeom, Jongmin Lee, Gab Chul Kim, Jin-Sung Yuk, Won Hwa Kim
Purpose To determine the prognostic value of peritumoral edema identified at preoperative breast magnetic resonance (MR) imaging for disease recurrence in patients with invasive breast cancer. Materials and Methods Between January 2011 and December 2012, 353 women (median age, 49 years; range, 27-77 years) with invasive breast cancer who had undergone preoperative MR imaging and mastectomy or breast-conserving surgery were identified. Two radiologists independently reviewed peritumoral edema on the basis of the degree of the signal intensity surrounding the tumor on T2-weighted images...
January 9, 2018: Radiology
https://www.readbyqxmd.com/read/29304237/performance-of-the-net-reclassification-improvement-for-non-nested-models-and-a-novel-percentile-based-alternative
#6
Shannon B McKearnan, Julian Wolfson, David M Vock, Gabriela Vazquez-Benitez, Patrick J O'Connor
The Net Reclassification Improvement (NRI) is a widely used metric used to assess the relative ability of two risk models to distinguish between low- and high-risk individuals. However, the validity and usefulness of the NRI have been questioned. Criticism of the NRI focuses on its use comparing nested risk models, whereas in practice it is often used to compare non-nested risk models derived from distinct data sources. In this study, we evaluated the performance of the NRI in a non-nested context by using it to compare competing cardiovascular risk prediction models...
January 3, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29291417/performance-of-qsofa-and-sofa-for-predicting-mortality-in-patients-with-acute-pyelonephritis-associated-with-upper-urinary-tract-calculi
#7
Hiroshi Fukushima, Masaki Kobayashi, Keizo Kawano, Shinji Morimoto
PURPOSE: The Sepsis-3 Task Force proposed a new definition of sepsis based on SOFA and introduced a novel scoring system, qSOFA, for screening high-risk patients for sepsis. Their clinical usefulness, however, is unclear. Therefore, we investigated their predictive performance for mortality in APN-UTC patients. MATERIALS AND METHODS: This retrospective study included 141 consecutive patients clinically diagnosed with APN-UTC outside the ICU. We evaluated the performance of qSOFA, SOFA, and SIRS in predicting in-hospital mortality and ICU admission using the AUC of the ROC curve, NRI, IDI, and decision curve analysis...
December 29, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29227997/normalized-emphysema-scores-on-low-dose-ct-validation-as-an-imaging-biomarker-for-mortality
#8
Leticia Gallardo-Estrella, Esther Pompe, Pim A de Jong, Colin Jacobs, Eva M van Rikxoort, Mathias Prokop, Clara I Sánchez, Bram van Ginneken
The purpose of this study is to develop a computed tomography (CT) biomarker of emphysema that is robust across reconstruction settings, and evaluate its ability to predict mortality in patients at high risk for lung cancer. Data included baseline CT scans acquired between August 2002 and April 2004 from 1737 deceased subjects and 5740 surviving controls taken from the National Lung Screening Trial. Emphysema scores were computed in the original scans (origES) and after applying resampling, normalization and bullae analysis (normES)...
2017: PloS One
https://www.readbyqxmd.com/read/29226610/nuclear-magnetic-resonance-based-metabolomics-identifies-phenylalanine-as-a-novel-predictor-of-incident-heart-failure-hospitalisation-results-from-prosper-and-finrisk-1997
#9
Christian Delles, Naomi J Rankin, Charles Boachie, Alex McConnachie, Ian Ford, Antti Kangas, Pasi Soininen, Stella Trompet, Simon P Mooijaart, J Wouter Jukema, Faiez Zannad, Mika Ala-Korpela, Veikko Salomaa, Aki S Havulinna, Paul Welsh, Peter Würtz, Naveed Sattar
AIMS: We investigated the association between quantified metabolite, lipid and lipoprotein measures and incident heart failure hospitalisation (HFH) in the elderly, and examined whether circulating metabolic measures improve HFH prediction. METHODS AND RESULTS: Overall, 80 metabolic measures from the PROspective Study of Pravastatin in the Elderly at Risk (PROSPER) trial were measured by proton nuclear magnetic resonance spectroscopy (n = 5341; 182 HFH events during 2...
December 11, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29221843/a-comparison-of-the-accuracy-of-clinician-prediction-of-survival-versus-the-palliative-prognostic-index
#10
Paige Farinholt, Minjeong Park, Ying Guo, Eduardo Bruera, David Hui
CONTEXT: Survival predictions for advanced cancer patients impact many aspects of care, but the accuracy of clinician prediction of survival (CPS) is low. Prognostic tools such as the Palliative Prognostic Index (PPI) have been proposed to improve accuracy of predictions. However, it is not known if PPI is better than CPS at discriminating survival. OBJECTIVE: We compared the prognostic accuracy of CPS to PPI in patients with advanced cancer. METHODS: This was a prospective study in which palliative care physicians at our tertiary care cancer center documented both the PPI and CPS in hospitalized patients with advanced cancer...
December 5, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/29221111/nasopharyngeal-carcinoma-risk-prediction-via-salivary-detection-of-host-and-epstein-barr-virus-genetic-variants
#11
Qian Cui, Fu-Tuo Feng, Miao Xu, Wen-Sheng Liu, You-Yuan Yao, Shang-Hang Xie, Xi-Zhao Li, Zu-Lu Ye, Qi-Sheng Feng, Li-Zhen Chen, Jin-Xin Bei, Lin Feng, Qi-Hong Huang, Wei-Hua Jia, Su-Mei Cao, Ellen T Chang, Weimin Ye, Hans-Olov Adami, Yi-Xin Zeng
Genetic susceptibility and Epstein-Barr virus (EBV) infection are important etiological factors in nasopharyngeal carcinoma (NPC). In this study, in southern China, where NPC is endemic, a single nucleotide polymorphism (SNP) in the EBV-encoded RPMS1 gene (locus 155391: G > A [G155391A]) and seven host SNPs (rs1412829, rs28421666, rs2860580, rs2894207, rs31489, rs6774494, and rs9510787) were confirmed to be significantly associated with NPC risk in 50 NPC cases versus 54 hospital-based controls with throat washing specimens and 1925 NPC cases versus 1947 hospital-based controls with buffy coat samples, respectively...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29211884/impact-of-current-and-past-cancer-history-on-the-risk-of-cardiovascular-events-following-percutaneous-coronary-intervention-a-kumamoto-university-malignancy-and-atherosclerosis-kuma-study
#12
Noriaki Tabata, Daisuke Sueta, Eiichiro Yamamoto, Seiji Takashio, Yuichiro Arima, Satoshi Araki, Kenshi Yamanaga, Masanobu Ishii, Kenji Sakamoto, Hisanori Kanazawa, Koichiro Fujisue, Shinsuke Hanatani, Hirofumi Soejima, Seiji Hokimoto, Yasuhiro Izumiya, Sunao Kojima, Hiroshige Yamabe, Koichi Kaikita, Kenichi Tsujita
Background: As progress is made in successfully treating cancer, there is increasing need to focus on the risk and complexity of treating cardiovascular events in cancer survivors - thus, the field of onco-cardiology/cardio-oncology has emerged. We examined the differential incidence of cardiovascular events after percutaneous coronary intervention (PCI) in patients with or without cancer. Methods and Results: Participants were divided into a non-cancer group and a cancer group, which consisted of patients who were receiving or had ever received cancer treatment...
December 1, 2017: European Heart Journal. Quality of Care & Clinical Outcomes
https://www.readbyqxmd.com/read/29184194/interventions-for-management-of-post-stroke-depression-a-bayesian-network-meta-analysis-of-23-randomized-controlled-trials
#13
Linghui Deng, Xuejun Sun, Shi Qiu, Yao Xiong, Yuxiao Li, Lu Wang, Qiang Wei, Deren Wang, Ming Liu
Post-stroke depression (PSD) is an important complication of stroke, leading to increased disability and mortality. Given that there is no consensus on which treatment is optimal for PSD, we aimed to evaluate the relative efficacies of available pharmacological and non-pharmacological interventions. We conducted a network meta-analysis to incorporate evidence from relevant trials and provide direct and indirect comparisons. We searched PubMed, Cochrane Library Central Register of Controlled Trials, and Embase until November 1, 2016 for randomized controlled trials involving different pharmacological and non-pharmacological PSD treatment interventions...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29177706/prognostic-value-of-vasodilator-response-using-rubidium-82-positron-emission-tomography-myocardial-perfusion-imaging-in-patients-with-coronary-artery-disease
#14
Punitha Arasaratnam, Masoud Sadreddini, Yeung Yam, Vinay Kansal, Sharmila Dorbala, Marcelo F Di Carli, Rob S Beanlands, Michael E Merhige, Brent A Williams, Emir Veledar, James K Min, Li Chen, Terrence D Ruddy, Guido Germano, Daniel S Berman, Leslee J Shaw, Benjamin J W Chow
BACKGROUND: Prognostic value of positron emission tomography (PET) myocardial perfusion imaging (MPI) is well established. There is paucity of data on how the prognostic value of PET relates to the hemodynamic response to vasodilator stress. We hypothesize that inadequate hemodynamic response will affect the prognostic value of PET MPI. METHODS AND RESULTS: Using a multicenter rubidium (Rb)-82 PET registry, 3406 patients who underwent a clinically indicated rest/stress PET MPI with a vasodilator agent were analyzed...
November 27, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29174140/relation-of-coronary-artery-calcium-and-extra-coronary-aortic-calcium-to-incident-hypertension-from-the-multi-ethnic-study-of-atherosclerosis
#15
Amer I Aladin, Mahmoud Al Rifai, Shereen H Rasool, Zeina Dardari, Joseph Yeboah, Khurram Nasir, Matthew J Budoff, Bruce M Psaty, Roger S Blumenthal, Michael J Blaha, John W McEvoy
Arterial calcification reflects an atherosclerotic process associated with vascular stiffness. Whether baseline coronary artery calcium (CAC) and extra-coronary calcium (ECC), measured using noncontrast computed tomography imaging, are associated with incident hypertension is poorly understood. We studied participants from the Multi-Ethnic Study of Atherosclerosis without measured or self-reported hypertension at baseline. Incident hypertension was defined by blood pressure criteria (BP, ≥140/90 mmHg), BP medication use, or both, and was assessed at in-person visits...
October 24, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29156504/clinical-risk-reclassification-at-10%C3%A2-years
#16
Nancy R Cook, Olga V Demler, Nina P Paynter
Three papers in this issue focus on the role of calibration in model fit statistics, including the net reclassification improvement (NRI) and integrated discrimination improvement (IDI). This commentary reviews the development of such reclassification statistics along with more recent advances in our understanding of these measures. We show how the two-category NRI and the IDI are affected by changes in the event rate in theory and in an applied example. We also describe the role of calibration and how it may be assessed...
December 10, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/29156498/first-things-first-risk-model-performance-metrics-should-reflect-the-clinical-application
#17
Kathleen F Kerr, Holly Janes
Developing new measures of risk model performance is an active line of research, often motivated by the conventional wisdom that area under the ROC curve is an 'insensitive' measure of the additional predictive capacity offered by new biomarkers. Without endorsing area under the ROC curve, we argue that this charge is not substantiated. Three articles in this issue discuss alternative metrics of risk model performance: NRI(p) (two-category net reclassification index at the event rate), integrated discrimination index, and R-squared statistics...
December 10, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/29142010/value-of-progression-of-coronary-artery-calcification-for-risk-prediction-of-coronary-and-cardiovascular-events-result-of-the-heinz-nixdorf-recall-hnr-study
#18
Nils Lehmann, Raimund A Erbel, Amir A Mahabadi, Michael Rauwolf, Stefan Möhlenkamp, Susanne Moebus, Hagen Kälsch, Thomas Budde, Axel Schmermund, Andreas Stang, Dagmar Führer-Sakel, Christian Weimar, Ulla Roggenbuck, Nico Dragano, Karl-Heinz Jöckel
Background -Computed tomography (CT) allows estimation of coronary artery calcium (CAC) progression. We evaluated several progression algorithms in our unselected, population-based cohort for risk prediction of coronary and cardiovascular (CV) events. Methods -In 3281 participants (45-74 years), free from CV disease until the 2nd visit, risk factors and CTs at baseline (b) and after a mean of 5.1 years (5y) were measured. Hard coronary and cardiovascular events as well as total CV events including revascularization were recorded during a follow-up time of 7...
November 15, 2017: Circulation
https://www.readbyqxmd.com/read/29130984/lymphocyte-cell-ratios-and-mortality-among-incident-hemodialysis-patients
#19
Christina Catabay, Yoshitsugu Obi, Elani Streja, Melissa Soohoo, Christina Park, Connie M Rhee, Csaba P Kovesdy, Takayuki Hamano, Kamyar Kalantar-Zadeh
BACKGROUND: Neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) have been previously suggested as oncologic prognostication markers. These are associated with malnutrition and inflammation, and hence, may provide benefit in predicting mortality among hemodialysis patients. METHODS: Among 108,548 incident hemodialysis patients in a large U.S. dialysis organization (2007-2011), we compared the mortality predictability of NLR and PLR with baseline and time-varying covariate Cox models using the receiver operating characteristic curve (AUROC), net reclassification index (NRI), and adjusted R2...
November 7, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/29129262/biochemical-risk-markers-and-10-year-incidence-of-atherosclerotic-cardiovascular-disease-independent-predictors-improvement-in-pooled-cohort-equation-and-risk-reclassification
#20
MULTICENTER STUDY
Emmanuel Akintoye, Alexandros Briasoulis, Luis Afonso
BACKGROUND: The recommendation for statins in primary atherosclerotic cardiovascular disease (ASCVD) prevention begins with risk estimation using the pooled cohort equation (PCE). However, treatment decisions may still remain uncertain after PCE-based assessment. We therefore developed a simple biomarker score that could supplement decision making. METHODS: Using the prospectively collected database of the Multi-Ethnic Study of Atherosclerosis, we identified biochemical risk markers that independently predicted 10-year risk of ASCVD and developed an aggregate biomarker score based on them...
November 2017: American Heart Journal
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