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Discrimination cardiovascular

Mattias Holmer, Juan Pablo Martínez, Eduardo Gil, Frida Sandberg, Bo Olde, Leif Sörnmo
Monitoring of ventricular premature beats (VPBs), being abundant in hemodialysis patients, can provide information on cardiovascular instability and electrolyte imbalance. In this paper, we describe a method for VPB detection which explores the signals acquired from the arterial and the venous pressure sensors, located in the extracorporeal blood circuit of a hemodialysis machine. The pressure signals are mainly composed of a pump component and a cardiac component. The cardiac component, severely overshadowed by the pump component, is estimated from the pressure signals using an earlier described iterative method...
December 8, 2017: Medical Engineering & Physics
Sameer A Hirji, Susanna R Stevens, Linda K Shaw, Erin C Campbell, Christopher B Granger, Manesh R Patel, Michael H Sketch, Tracy Y Wang, E Magnus Ohman, Eric D Peterson, J Matthew Brennan
BACKGROUND: Recent randomized evidence has demonstrated benefit with complete revascularization during the index hospitalization for multivessel coronary artery disease ST-segment elevation myocardial infarction (STEMI) patients; however, this benefit likely depends on the risk of future major adverse cardiovascular events (MACE). METHODS: Using data from Duke University Medical Center (2003-2012), we identified those at high risk for 1-year MACE among 664 STEMI patients with conservatively managed non-infarct-related artery (non-IRA) lesions...
December 2017: American Heart Journal
Benjamin M Scirica, Ofri Mosenzon, Deepak L Bhatt, Jacob A Udell, Ph Gabriel Steg, Darren K McGuire, KyungAh Im, Estella Kanevsky, Christina Stahre, Mikaela Sjöstrand, Itamar Raz, Eugene Braunwald
Importance: An elevated level of urinary albumin to creatinine ratio (UACR) is a marker of renal dysfunction and predictor of kidney failure/death in patients with type 2 diabetes. The prognostic use of UACR in established cardiac biomarkers is not well described. Objective: To evaluate whether UACR offers incremental prognostic benefit beyond risk factors and established plasma cardiovascular biomarkers. Design, Setting, and Participants: The Saxagliptin Assessment of Vascular Outcomes Recorded in Patients With Diabetes Mellitus-Thrombolysis in Myocardial Infarction (SAVOR-TIMI) 53 study was performed from May 2010 to May 2013 and evaluated the safety of saxagliptin vs placebo in patients with type 2 diabetes with overt cardiovascular disease or multiple risk factors...
December 6, 2017: JAMA Cardiology
Yunyao Jiang, Nan Liu, Bingjie Xue, Jincai Hou, Chengren Lin, Jianxun Ren, Jianxun Liu
Coronary heart disease (CHD) has become one of the leading causes of death and functional impairment in the world. Hyperglycemia is associated with an increased risk of cardiovascular disease. It was speculated that miRNAs in peripheral blood were a primary parameter in discriminating CHD. The biological characteristics of coronary heart disease with hyperglycemia (HCHD) and coronary heart disease with euglycemia (ECHD) were investigated in the study. Circulating miRNAs from 26 HCHD patients and 42 ECHD patients were identified by microarrays...
2017: BioMed Research International
Niloufar Samiei, Maryam Bayat, Ata Firouzi, Faezeh Dehghani, Mozhgan Parsaee, Shahin Rahimi, Somayyeh Ahmadi, Maryam Pourmojib, Zahra Ghaemmaghami, Yousef Rezaei, Mohammad Mehdi Peighambari
BACKGROUND: The metabolic syndrome (MetS), as a combination of cardiovascular risk factors, is associated with subclinical cardiovascular diseases. We sought to evaluate the subclinical myocardial dysfunctions using echocardiography in patients with normal coronary arteries. MATERIALS AND METHODS: In this cross-sectional study, we assessed 50 consecutive patients with angiographically-proven normal coronary arteries and a left ventricular (LV) ejection fraction (EF) ≥55%...
December 6, 2017: Journal of Clinical Ultrasound: JCU
Solenne Paiva, Onnik Agbulut
At present, cardiovascular diseases are depicted to be the leading cause of death worldwide according to the World Health Organization. In the future, projections predict that ischemic heart disease will persist in the top main causes of illness. Within this alarming context, some tiny master regulators of gene expression programs, namely, microRNAs (miRNAs) carry three promising potentials. In fact, miRNAs can prove to be useful not only in terms of biomarkers allowing heart injury detection but also in terms of therapeutics to overcome limitations of past strategies and treat the lesions...
2017: Frontiers in Cardiovascular Medicine
LaBarron K Hill, Andrew Sherwood, Maya McNeilly, Norman A Anderson, James A Blumenthal, Alan L Hinderliter
OBJECTIVE: Racial discrimination is increasingly recognized as a contributor to increased cardiovascular disease risk among African Americans. Previous research has shown significant overlap between racial discrimination and hostility, an established predictor of CVD risk including alterations in adrenergic receptor functioning. The present study examined the associations of racial discrimination and hostility with adrenergic receptor responsiveness. METHODS: In a sample (N=57) of young to middle-aged African American adults (51% female) with normal and mildly elevated blood pressure (BP), a standardized isoproterenol sensitivity test (CD25) was used to evaluate β-AR responsiveness, while the dose of phenylephrine required to increase mean arterial pressure (MAP) by 25 mmHg (PD25) was used to assess α1-AR responsiveness...
December 5, 2017: Psychosomatic Medicine
Simone P Rauh, Femke Rutters, Amber A W A van der Heijden, Thomas Luimes, Marjan Alssema, Martijn W Heymans, Dianna J Magliano, Jonathan E Shaw, Joline W Beulens, Jacqueline M Dekker
BACKGROUND: Chronic cardiometabolic diseases, including cardiovascular disease (CVD), type 2 diabetes (T2D) and chronic kidney disease (CKD), share many modifiable risk factors and can be prevented using combined prevention programs. Valid risk prediction tools are needed to accurately identify individuals at risk. OBJECTIVE: We aimed to validate a previously developed non-invasive risk prediction tool for predicting the combined 7-year-risk for chronic cardiometabolic diseases...
December 4, 2017: Journal of General Internal Medicine
Maja J Drozdzynska, Yu-Mei Chang, Giacomo Stanzani, Ludovic Pelligand
OBJECTIVES: Goal-directed fluid therapy (GDFT) based on pulse pressure variation (PPV) was used in anaesthetized dogs undergoing abdominal surgeries. The aims were 1) to evaluate the success rate of the PPV ≥13% in detecting fluid responsiveness [delta stroke volume (ΔSV) ≥10%]; 2) to assess the correlation between PPV, systolic pressure variation (SPV), Plethysmograph Variability Index (PVI) and central venous pressure (CVP) and 3) to establish the threshold value for the PVI that would predict a PPV value of ≥13% and indirectly discriminate responders from nonresponders to fluid therapy...
June 17, 2017: Veterinary Anaesthesia and Analgesia
Miyuki Yokoyama, Tetsu Watanabe, Yoichiro Otaki, Ken Watanabe, Taku Toshima, Takayuki Sugai, Tetsuya Takahashi, Daisuke Kinoshita, Harutoshi Tamura, Satoshi Nishiyama, Hiroki Takahashi, Takanori Arimoto, Tetsuro Shishido, Sou Yamauchi, Tamon Yamanaka, Takuya Miyamoto, Isao Kubota
BACKGROUND: Peripheral artery disease (PAD) is an athero-occlusive disease and a known risk factor for cardiovascular events. The controlling nutritional status (CONUT) score and geriatric nutritional risk index (GNRI) are objective tools for evaluating malnutrition and are reportedly associated with poor clinical outcomes in patients with fatal diseases. However, the effect of malnutrition on the clinical outcomes in patients with PAD remains unclear.Methods and Results:We enrolled 357 patients with PAD who underwent endovascular therapy...
November 30, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
Maik Pietzner, Anne Kaul, Ann-Kristin Henning, Gabi Kastenmüller, Anna Artati, Markus M Lerch, Jerzy Adamski, Matthias Nauck, Nele Friedrich
BACKGROUND: Inflammation occurs as an immediate protective response of the immune system to a harmful stimulus, whether locally confined or systemic. In contrast, a persisting, i.e., chronic, inflammatory state, even at a low-grade, is a well-known risk factor in the development of common diseases like diabetes or atherosclerosis. In clinical practice, laboratory markers like high-sensitivity C-reactive protein (hsCRP), white blood cell count (WBC), and fibrinogen, are used to reveal inflammatory processes...
November 30, 2017: BMC Medicine
Arzu Uyar, Vardan Karamyan, Alex Dickson
Crystal structures of neurolysin, a zinc metallopeptidase, do not show a significant conformational change upon the binding of an allosteric inhibitor. Neurolysin has a deep channel where it hydrolyzes a short neuropeptide neurotensin to create inactive fragments and thus controls its level in the tissue. Neurolysin is of interest as a therapeutic target since changes in neurotensin level have been implicated in cardiovascular disorders, neurological disorders and cancer, and inhibitors of neurolysin have been developed...
November 27, 2017: Journal of Chemical Theory and Computation
Ling Li, Yingying Cong, Xueqin Gao, Yini Wang, Ping Lin
Acute myocardial infarction (AMI) is a major cause of morbidity and mortality worldwide. The early diagnosis of AMI is crucial for deciding the course of treatment and saving lives. Long non-coding RNAs (lncRNAs) are recently discovered ncRNA class and their dysregulated expression has been implicated in cardiovascular diseases. In this study, we analyzed lncRNA expression pattern by using two microarray datasets of AMI and healthy samples from the Gene Expression Omnibus (GEO) database and tried to identify novel AMI-related lncRNAs and investigate the predictive roles of lncRNAs in the early diagnosis of AMI...
October 24, 2017: Oncotarget
Frank Dudbridge, Nora Pashayan, Jian Yang
The substantial heritability of most complex diseases suggests that genetic data could provide useful risk prediction. To date the performance of genetic risk scores has fallen short of the potential implied by heritability, but this can be explained by insufficient sample sizes for estimating highly polygenic models. When risk predictors already exist based on environment or lifestyle, two key questions are to what extent can they be improved by adding genetic information, and what is the ultimate potential of combined genetic and environmental risk scores? Here, we extend previous work on the predictive accuracy of polygenic scores to allow for an environmental score that may be correlated with the polygenic score, for example when the environmental factors mediate the genetic risk...
November 26, 2017: Genetic Epidemiology
Kaloyan Kamenov, María Cabello, Carolina Saskia Ballert, Alarcos Cieza, Somnath Chatterji, Diego Rojas, Gloria Cerón, Jerome Bickenbach, José Luis Ayuso-Mateos, Carla Sabariego
OBJECTIVES: The objective of this study was to identify which environmental factors are the most responsible for the disability experienced by persons with mental disorders and whether they differ (1) from those in cardiovascular diseases, chronic respiratory conditions, diabetes, and cancer, and (2) depending on the capacity level-a proxy for the impact of health conditions on the health state of individuals. METHODS: Nationally representative data from 12,265 adults in Chile collected in 2015 with the WHO Model Disability Survey was analyzed...
November 25, 2017: International Journal of Public Health
Kevin P Bliden, Rahul Chaudhary, Eliano P Navarese, Tushar Sharma, Himabindu Kaza, Udaya S Tantry, Paul A Gurbel
BACKGROUND AND AIMS: Conventional cardiovascular risk estimators based on clinical demographics have limited prediction of coronary events. Markers for thrombogenicity and vascular function have not been explored in risk estimation of high-risk patients with coronary artery disease. We aimed to develop a clinical and biomarker score to predict 3-year adverse cardiovascular events. METHODS: Four hundred eleven patients, with ejection fraction ≥40% undergoing coronary angiography, and found to have a luminal diameter stenosis ≥50%, were included in the analysis...
November 20, 2017: Atherosclerosis
Juha Koskinen, Markus Juonala, Terence Dwyer, Alison Venn, Russell Thomson, Lydia Bazzano, Gerald S Berenson, Matthew A Sabin, Trudy L Burns, Jorma S A Viikari, Jessica G Woo, Elaine M Urbina, Ronald Prineas, Nina Hutri-Kähönen, Alan Sinaiko, David Jacobs, Julia Steinberger, Stephen Daniels, Olli T Raitakari, Costan G Magnussen
Background -Data suggest that the prediction of adult cardiovascular disease using a model comprised entirely of adult non-laboratory based risk factors is equivalent to an approach that additionally incorporates adult lipid measures. We assessed and compared the utility of a risk model based solely on non-laboratory risk factors in adolescence vs. a lipid model based on non-laboratory risk factors + lipids for predicting high-risk carotid intima-media thickness (cIMT) in adulthood. Methods -The study comprised 2,893 participants aged 12-18 years from four longitudinal cohort studies from the United States (Bogalusa Heart Study and the Insulin Study), Australia (Childhood Determinants of Adult Health Study) and Finland (The Cardiovascular Risk in Young Finns Study) and followed into adulthood when cIMT was measured (mean follow-up 23...
November 23, 2017: Circulation
Katarzyna Mizia-Stec, Tomasz Bochenek, Błażej Kusz, Magdalena Mizia, Agnieszka Sikora-Puz, Klaudia Gieszczyk-Strózik
BACKGROUND: The role of the adipokines in the pathogenesis of aortic stenosis (AS) is not well established. The aim was to evaluate the relationship between adipokines and clinical characteristics as well as echocardiographic indices and noninvasive markers of vascular remodeling in patients with severe AS with preserved ejection fraction (EF). METHODS: Sixty-five patients (F/M: 38/27; age: 68.3 ± 9.0 years; body mass index [BMI]: 29.6 ± 4.3 kg/m²) with severe AS with preserved EF: 33 patients with paradoxical low-flow low-gradient AS (PLFLG AS) and 32 patients with normal flow high-gradient AS (NFHG AS) were prospectively enrolled into the study...
November 23, 2017: Cardiology Journal
Mateus Dos Santos Viana, Fernanda Lopes, Antonio Mauricio Dos Santos Cerqueira, Jessica Gonzalez Suerdieck, André Barcelos da Silva, Ana Clara Barcelos da Silva, Thiago Menezes Barbosa de Souza, Manuela Campelo Carvalhal, Marcia Maria Noya Rabelo, Luis Claudio Lemos Correia
BACKGROUND: When performing coronary angiography in patients with acute coronary syndrome (ACS), the anatomical extent of coronary disease usually prevails in the prognostic reasoning. It has not yet been proven if clinical data should be accounted for in risk stratification together with anatomical data. OBJECTIVE: To test the hypothesis that clinical data increment the prognostic value of anatomical data in patients with ACS. METHODS: Patients admitted with objective criteria for ACS and who underwent angiography during hospitalization were included...
November 13, 2017: Arquivos Brasileiros de Cardiologia
Julia Hippisley-Cox, Carol Coupland
Objectives To derive and validate updated QDiabetes-2018 prediction algorithms to estimate the 10 year risk of type 2 diabetes in men and women, taking account of potential new risk factors, and to compare their performance with current approaches.Design Prospective open cohort study.Setting Routinely collected data from 1457 general practices in England contributing to the QResearch database: 1094 were used to develop the scores and a separate set of 363 were used to validate the scores.Participants 11...
November 20, 2017: BMJ: British Medical Journal
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