keyword
MENU ▼
Read by QxMD icon Read
search

Coronary calcium

keyword
https://www.readbyqxmd.com/read/29449364/diabetic-cardiomyopathy-an-update-of-mechanisms-contributing-to-this-clinical-entity
#1
REVIEW
Guanghong Jia, Michael A Hill, James R Sowers
Heart failure and related morbidity and mortality are increasing at an alarming rate, in large part, because of increases in aging, obesity, and diabetes mellitus. The clinical outcomes associated with heart failure are considerably worse for patients with diabetes mellitus than for those without diabetes mellitus. In people with diabetes mellitus, the presence of myocardial dysfunction in the absence of overt clinical coronary artery disease, valvular disease, and other conventional cardiovascular risk factors, such as hypertension and dyslipidemia, has led to the descriptive terminology, diabetic cardiomyopathy...
February 16, 2018: Circulation Research
https://www.readbyqxmd.com/read/29445096/chronic-intermittent-hypoxia-promotes-myocardial-ischemia-related-ventricular-arrhythmias-and-sudden-cardiac-death
#2
Jessica Morand, Claire Arnaud, Jean-Louis Pepin, Diane Godin-Ribuot
We investigated the effects of intermittent hypoxia (IH), such as that encountered in severe obstructive sleep apnea (OSA) patients, on the development and severity of myocardial ischemia-related ventricular arrhythmias. Rats were exposed to 14 days of IH (30 s at 5%O 2 and 30 s at 21%O 2 , 8 h·day -1 ) or normoxia (N, similar air-air cycles) and submitted to a 30-min coronary ligature. Arterial blood pressure (BP) and ECG were recorded for power spectral analysis, ECG interval measurement and arrhythmia quantification...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29440196/coronary-artery-calcium-if-measuring-once-is-good-is-twice-better
#3
EDITORIAL
Amit Khera, Philip Greenland
No abstract text is available yet for this article.
February 13, 2018: Circulation
https://www.readbyqxmd.com/read/29436385/cholesterol-efflux-capacity-does-not-associate-with-coronary-calcium-plaque-vulnerability-and-telomere-length-in-healthy-octogenarians
#4
Francesca Zimetti, Wladimir M Freitas, Alessandra M Campos, Mauricio Daher, Maria Pia Adorni, Franco Bernini, Andrei C Sposito, Ilaria Zanotti
Several studies revealed that traditional risk factors are less effective in predicting CVD risk in the elderly, suggesting the need to identify new biomarkers. Here we evaluated the association between serum cholesterol efflux capacity (CEC), an atheroprotective property of HDL recently identified as a novel marker of CVD risk, and atherosclerotic burden in a cohort of very old, healthy individuals. Serum CEC values were not significantly correlated neither with calcium score nor with markers of vulnerable plaque, such as positive remodeling, hypodensity, spotty calcification or napking-ring sign...
February 7, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29435665/coronary-artery-calcium-scoring-in-young-adults-evidence-and-challenges
#5
REVIEW
Marwan Saad, Naga Venkata Pothineni, Joseph Thomas, Richa Parikh, Swathi Kovelamudi, Dina Elsayed, Ramez Nairooz, Frederick Feit
PURPOSE OF REVIEW: This review aims to summarize the evidence and challenges of coronary artery calcium (CAC) scoring as a screening tool for coronary artery disease (CAD) in young adults. RECENT FINDINGS: Several cohort studies have highlighted the value of CAC scoring in CAD risk assessment in young adults. The largest study to date is the Coronary Artery Risk Development in Young Adults (CARDIA) study. The study examined patients at 18-30 years of age and demonstrated that the presence of any degree of CAC was associated with a higher risk of coronary events compared to zero CAC, with an incremental increase in the risk of events with higher scores...
February 12, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29432592/ultra-low-dose-coronary-artery-calcium-scoring-using-novel-scoring-thresholds-for-low-tube-voltage-protocols-a-pilot-study
#6
Christoph Gräni, Jan Vontobel, Dominik C Benz, Sara Bacanovic, Andreas A Giannopoulos, Michael Messerli, Marvin Grossmann, Cathérine Gebhard, Aju P Pazhenkottil, Oliver Gaemperli, Philipp A Kaufmann, Ronny R Buechel
Aims: To determine if tube-adapted thresholds for coronary artery calcium (CAC) scoring by computed tomography at 80 kilovolt-peak (kVp) tube voltage and 70-kVp yield comparable results to the standard 120-kVp protocol. Methods and results: We prospectively included 103 patients who underwent standard scanning with 120-kVp tube voltage and additional scans with 80 kVp and 70 kVp. Mean body mass index (BMI) was 27.9 ± 5.1 kg/m2. For the lowered tube voltages, we applied novel kVp-adapted thresholds for calculation of CAC scores and compared them with standard 120-kVp scans using intraclass correlation and Bland-Altman (BA) analysis...
February 8, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29431119/hypermetabolic-macrophages-in-rheumatoid-arthritis-and-coronary-artery-disease-due-to-glycogen-synthase-kinase-3b-inactivation
#7
Markus Zeisbrich, Rolando E Yanes, Hui Zhang, Ryu Watanabe, Yinyin Li, Lukas Brosig, Jison Hong, Barbara B Wallis, John C Giacomini, Themistocles L Assimes, Jörg J Goronzy, Cornelia M Weyand
OBJECTIVES: Accelerated atherosclerotic disease typically complicates rheumatoid arthritis (RA), leading to premature cardiovascular death. Inflammatory macrophages are key effector cells in both rheumatoid synovitis and the plaques of coronary artery disease (CAD). Whether both diseases share macrophage-dependent pathogenic mechanisms is unknown. METHODS: Patients with RA or CAD (at least one myocardial infarction) and healthy age-matched controls were recruited into the study...
February 3, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29420547/coronary-artery-calcium-before-and-after-hospitalization-with-pneumonia-the-mesa-study
#8
Vicente F Corrales-Medina, Girish Dwivedi, Monica Taljaard, William Petrcich, Joao A Lima, Sachin Yende, Richard A Kronmal, Julio A Chirinos
BACKGROUND: Epidemiological analyses demonstrate that pneumonia survivors have a higher risk of myocardial infarction than people with similar load of risk factors for atherosclerotic cardiovascular disease (ASCVD) but without pneumonia. This may be due to a higher baseline burden of ASCVD in patients with pneumonia that is not captured by the accounting of known ASCVD risk factors in epidemiological analyses or to unfavorable accelerating effects of pneumonia on atherosclerosis. METHODS: We analyzed data from the Multi-Ethnic Study of Atherosclerosis...
2018: PloS One
https://www.readbyqxmd.com/read/29417141/nonculprit-plaque-characteristics-in-patients-with-acute-coronary-syndrome-caused-by-plaque-erosion-vs-plaque-rupture-a-3-vessel-optical-coherence-tomography-study
#9
Tomoyo Sugiyama, Erika Yamamoto, Krzysztof Bryniarski, Lei Xing, Hang Lee, Mitsuaki Isobe, Peter Libby, Ik-Kyung Jang
Importance: Patients with culprit plaque rupture are known to have pancoronary plaque vulnerability. However, the characteristics of nonculprit plaques in patients with acute coronary syndromes caused by plaque erosion are unknown. Objective: To investigate the nonculprit plaque phenotype in patients with acute coronary syndrome according to culprit plaque pathology (erosion vs rupture) by 3-vessel optical coherence tomography imaging. Design, Setting, and Participants: In this observational cohort study, between August 2010 and May 2014, 82 patients with ACS who underwent preintervention optical coherence tomography imaging of all 3 major epicardial coronary arteries were enrolled at the Massachusetts General Hospital Optical Coherence Tomography Registry database...
February 7, 2018: JAMA Cardiology
https://www.readbyqxmd.com/read/29416745/itraq-analysis-of-a-mouse-acute-myocardial-infarction-model-reveals-that-vitamin-d-binding-protein-promotes-cardiomyocyte-apoptosis-after-hypoxia
#10
Yun Wu, Fen Liu, Xiang Ma, Dilare Adi, Ming-Tao Gai, Xiang Jin, Yi-Ning Yang, Ying Huang, Xiang Xie, Xiao-Mei Li, Zhen-Yan Fu, Bang-Dang Chen, Yi-Tong Ma
The proteome profile changes after acute myocardial infarction (AMI) and the roles played by important protein species remain poorly understood. Here, we constructed a mouse AMI model by ligating the left coronary artery of male C57B/6J mice to investigate the molecular changes after AMI on the protein level. Total proteins of the left ventricle were extracted and quantitatively analyzed by isobaric tags using relative and absolute quantitation (iTRAQ) technologies. The transcript and protein levels of important genes were further validated using quantitative polymerase chain reaction and western blot...
January 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/29415207/progression-of-calcium-density-in-the-ascending-thoracic-aorta-is-inversely-associated-with-incident-cardiovascular-disease-events
#11
Isac C Thomas, Robyn L McClelland, Matthew A Allison, Joachim H Ix, Erin D Michos, Nketi I Forbang, Wendy S Post, Nathan D Wong, Matthew J Budoff, Michael H Criqui
Aims: Little is known regarding the risk of atherosclerotic cardiovascular disease (ASCVD) conferred by changes in the volume and density of ascending thoracic aorta calcium (ATAC) over time. We evaluated changes in ATAC volume and density scores and incident ASCVD events. Methods and results: The Multi-Ethnic Study of Atherosclerosis is a prospective cohort study of individuals without baseline clinical ASCVD. Ascending thoracic aorta calcium was measured from baseline and follow-up (mean interval 2...
February 5, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29408955/high-androgens-in-postmenopausal-women-and-the-risk-for-atherosclerosis-and-cardiovascular-disease-the-rotterdam-study
#12
Cindy Meun, Oscar H Franco, Klodian Dhana, Loes Jaspers, Taulant Muka, Yvonne Louwers, M Arfan Ikram, Bart C J M Fauser, Maryam Kavousi, Joop S E Laven
Context: Polycystic ovary syndrome (PCOS) is closely linked to hyperandrogenism. In PCOS, hyperandrogenism has been associated with metabolic disturbances which increase the risk for cardiovascular disease (CVD). Objective: To assess the association of high serum androgen levels, as a postmenopausal remnant of PCOS, with the prevalence of atherosclerosis and incidence of CVD in postmenopausal women. Design: The Rotterdam Study, a prospective population-based cohort study...
February 1, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29408789/automatic-calcium-scoring-in-low-dose-chest-ct-using-deep-neural-networks-with-dilated-convolutions
#13
Nikolas Lessmann, Bram van Ginneken, Majd Zreik, Pim A de Jong, Bob D de Vos, Max A Viergever, Ivana Isgum
Heavy smokers undergoing screening with low-dose chest CT are affected by cardiovascular disease as much as by lung cancer. Low-dose chest CT scans acquired in screening enable quantification of atherosclerotic calcifications and thus enable identification of subjects at increased cardiovascular risk. This paper presents a method for automatic detection of coronary artery, thoracic aorta, and cardiac valve calcifications in low-dose chest CT using two consecutive convolutional neural networks. The first network identifies and labels potential calcifications according to their anatomical location and the second network identifies true calcifications among the detected candidates...
February 2018: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/29407888/inflammation-and-coronary-artery-calcification-in-south-asians-the-mediators-of-atherosclerosis-in-south-asians-living-in-america-masala-study
#14
Anurag Mehta, Jaideep Patel, Mahmoud Al Rifai, Colby R Ayers, Ian J Neeland, Alka M Kanaya, Namratha Kandula, Michael J Blaha, Khurram Nasir, Roger S Blumenthal, Parag H Joshi
BACKGROUND AND AIMS: Inflammatory biomarkers and adipocytokines (IBA) may contribute to atherosclerosis by promoting vascular inflammation. The association between IBA and coronary artery calcium (CAC), a marker of subclinical atherosclerosis, is not well defined in South Asians (SA). We hypothesized that IBA (high sensitivity C-reactive protein [hsCRP], tumor necrosis factor alpha [TNF-α], adiponectin, and leptin) were independently associated with and improved discrimination of CAC among SA...
January 29, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29407168/rlj-rgd3-a-novel-recombinant-toxin-protein-from-lampetra-japonica-prevents-coronary-thrombosis-induced-acute-myocardial-infarction-by-inhibiting-platelet-functions-in-rats
#15
Shengnan Wang, Junshu Jiang, Yue Wang, Qilan Jia, Shufang Dai, Yuping Wang, Li Lv, Jihong Wang
Recombinant Lampetra japonica RGD-peptide (rLj-RGD3), a soluble protein containing three RGD sequences, was acquired from the oral salivary glands of Lampetra japonica using recombinant DNA technology. The aim of this study was to investigate the protective effects of rLj-RGD3 against acute myocardial infarction (AMI) induced by coronary artery thrombosis, as well as the underlying mechanisms. A rat model of AMI caused by ferric chloride-induced thrombosis on the surface of the left anterior descending (LAD) coronary artery was successfully established...
February 3, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29406941/cardiac-imaging-modalities-and-appropriate-use
#16
REVIEW
Paul Gabriel Peterson, Michael Berge, John P Lichtenberger, Maureen N Hood, Vincent B Ho
Cardiovascular imaging with calcium scoring computed tomography (CT), coronary CT angiography (CCTA), and cardiac MRI (CMR) have advanced rapidly over recent years. These imaging modalities have increased in availability, accessibility, and clinical practicality due to technological advances allowing for significant radiation dose reduction for high-quality CCTA and for rapid and reliable imaging techniques in CMR. Hardware and software developments are continually increasing efficiency and accuracy of postprocessing...
March 2018: Primary Care
https://www.readbyqxmd.com/read/29406041/geographic-and-individual-correlates-of-subclinical-atherosclerosis-in-an-asymptomatic-rural-appalachian-population
#17
Hadii M Mamudu, Antwan Jones, Timir Paul, Pooja Subedi, Liang Wang, Arsham Alamian, Ali E Alamin, Gerald Blackwell, Matthew Budoff
BACKGROUND: This study aimed to examine the association between subclinical atherosclerosis (ascertained as coronary artery calcium [CAC]) in asymptomatic individuals in the Central Appalachian region of the United States and individual- and geographic-level factors. MATERIALS AND METHODS: Data were obtained from participants in CAC screening between 2012 and 2016. CAC score was assessed as CAC = 0 (no plaque), 1 ≤ CAC ≤ 99 (mild plaque), 100 ≤ CAC ≤ 399 (moderate plaque) and CAC ≥ 400 (severe plaque)...
February 2018: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29404770/high-pitch-low-voltage-ct-coronary-artery-calcium-scoring-with-tin-filtration-accuracy-and-radiation-dose-reduction
#18
Georg Apfaltrer, Moritz H Albrecht, U Joseph Schoepf, Taylor M Duguay, Carlo N De Cecco, John W Nance, Domenico De Santis, Paul Apfaltrer, Marwen H Eid, Chelsea D Eason, Zachary M Thompson, Maximilian J Bauer, Akos Varga-Szemes, Brian E Jacobs, Erich Sorantin, Christian Tesche
OBJECTIVES: To investigate diagnostic accuracy and radiation dose of high-pitch CT coronary artery calcium scoring (CACS) with tin filtration (Sn100kVp) versus standard 120kVp high-pitch acquisition. METHODS: 78 patients (58% male, 61.5±9.1 years) were prospectively enrolled. Subjects underwent clinical 120kVp high-pitch CACS using third-generation dual-source CT followed by additional high-pitch Sn100kVp acquisition. Agatston scores, calcium volume scores, Agatston score categories, percentile-based risk categorization and radiation metrics were compared...
February 5, 2018: European Radiology
https://www.readbyqxmd.com/read/29404272/type-i-kounis-syndrome-variant-a-case-report-and-literature-review
#19
Abdullah Haddad, Triston Smith, Aneel Bole, Moneal Shah, Mithun Chakravarthy
Kounis syndrome defined as the occurrence of acute coronary syndrome in the setting of allergic reaction due to mast cells activation and inflammatory mediators release that induces coronary vasospasm, plaque erosion, or even stent thrombosis. A 25-year-old postpartum female with asthma and recurrent episodes of chest pain was admitted with ST-segment elevation myocardial infarction in the setting of coronary artery spasms. The patient was started on calcium channel blockers and nitrite-based medication with no improvement...
January 2018: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/29402648/treatment-of-cardiovascular-diseases-among-elderly-residents-of-long-term-care-facilities
#20
Anna Kańtoch, Barbara Gryglewska, Jadwiga Wójkowska-Mach, Piotr Heczko, Tomasz Grodzicki
BACKGROUND: The prevalence of cardiovascular diseases among nursing home residents is high but little is known whether pharmacologic therapy recommended by actual medication guidelines is followed by facility's staff. AIM: To evaluate the adherence to actual guidelines for treatment of cardiovascular diseases among older adult residents of long-term care (LTC) facilities. MATERIAL AND METHODS: The cross-sectional study was performed from December 2009 to November 2010 among 189 elderly residents aged ≥60 years in 3 LTC facilities in Poland: 1 long-term care hospital (LTCH) and 2 nursing homes (NHs)...
February 2, 2018: Journal of the American Medical Directors Association
keyword
keyword
47079
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"