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https://www.readbyqxmd.com/read/29353319/management-strategies-for-noncardiac-surgery-following-a-coronary-artery-event
#1
REVIEW
Thomas F Whayne, Sibu P Saha
PURPOSE OF REVIEW: Coronary artery event includes acute coronary syndrome (ACS), percutaneous coronary intervention (PCI), and coronary artery bypass graft (CABG) surgery. Following such an event, risk of noncardiac surgery is increased. Of major concern is what can make this surgery safer? RECENT FINDINGS: High functional capacity improves cardiovascular (CV) risk; at least 4.0 metabolic equivalents (METs) on stress test are favorable. Risk scores can suggest need for further evaluation...
January 20, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29353224/coronary-microvascular-dysfunction-may-be-related-to-igf-1-in-acromegalic-patients-and-can-be-restored-by-therapy
#2
Sara Tellatin, Pietro Maffei, Elena Osto, Francesca Dassie, Giulia Famoso, Roberta Montisci, Chiara Martini, Francesco Fallo, Martina Perazzolo Marra, Roberto Mioni, Sabino Iliceto, Roberto Vettor, Francesco Tona
BACKGROUND AND AIMS: Acromegaly increases the risk of cardiovascular mortality. Data on the cardiovascular risk in asymptomatic acromegaly are limited. In particular, data on coronary microvascular abnormalities are lacking. We assessed coronary flow reserve (CFR) as a marker of coronary microvascular function in asymptomatic acromegaly. METHODS: We studied 40 acromegalic patients (23 male, age 52 ± 11 years) without clinical evidence of cardiovascular disease, and 40 control subjects matched for age and sex...
December 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29352859/is-selective-5-ht1f-receptor-agonism-an-entity-apart-from-that-of-the-triptans-in-antimigraine-therapy
#3
REVIEW
Eloísa Rubio-Beltrán, Alejandro Labastida-Ramírez, Carlos M Villalón, Antoinette MaassenVanDenBrink
Migraine is a neurovascular disorder that involves activation of the trigeminovascular system and cranial vasodilation mediated by release of calcitonin gene-related peptide (CGRP). The gold standard for acute migraine treatment are the triptans, 5-HT1B/1D/(1F) receptor agonists. Their actions are thought to be mediated through activation of: (i) 5-HT1B receptors in cranial blood vessels with subsequent cranial vasoconstriction; (ii) prejunctional 5-HT1D receptors on trigeminal fibers that inhibit trigeminal CGRP release; and (iii) 5-HT1B/1D/1F receptors in central nervous system involved in (anti)nociceptive modulation...
January 17, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29352760/endothelial-function-estimated-by-digital-reactive-hyperemia-in-patients-with-atherosclerotic-risk-factors-or-coronary-artery-disease
#4
Jeehoon Kang, Hack-Lyoung Kim, Jae-Bin Seo, Jin-Yong Lee, Min-Kyong Moon, Woo-Young Chung
Due to the complex profile of atherosclerotic risk factors, an integrated analysis of a specific individual is difficult. Endothelial function reflects a composite of various risk factors, and may be used as an optimal tool to estimate the overall atherosclerotic risk. In this study, we investigated the value of digital Reactive Hyperemia Index (RHI) in an actual population with multiple atherosclerotic risk factors or coronary artery disease (CAD). A total of 417 patients from the Seoul National University Boramae Medical Center RHI registry were enrolled in this study...
January 19, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29352692/ckd-epi-versus-cockcroft-gault-formula-for-predicting-contrast-induced-nephropathy-following-percutaneous-coronary-intervention-in-patients-without-significant-renal-impairment
#5
Mário B G Nunes, Antônio C Filho, Valéria R C Alvares, Rafael Moreno, Edgar Lamas, Vitor Loures, Daniel Chamié, Alexandre Abizaid
INTRODUCTION: Individuals with glomerular filtration rate (GFR) ≥60 ml/min/1.73 m2 estimated by the Cockcroft-Gault formula (CG) who undergo percutaneous coronary intervention (PCI) frequently develop contrast-induced nephropathy (CIN). This study aimed to assess whether individuals with significant renal impairment assessed by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula, but not by CG, more often develop CIN following PCI than those without renal impairment by either formula...
January 15, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29352691/adopting-an-early-invasive-strategy-for-non-st-elevation-myocardial-infarction-analysis-of-the-portuguese-registry-on-acute-coronary-syndromes
#6
Gonçalo Morgado, Hélder Pereira, Daniel Caldeira
INTRODUCTION: In patients with non-ST-elevation myocardial infarction (NSTEMI), the best timing for coronary angiography is not definitely established, although it is recognized that in high-risk patients it should be performed within the first 24 hours. The aim of this work was to describe the evolution over time of the use of an invasive strategy in the treatment of NSTEMI and in-hospital mortality. METHODS: We performed a retrospective analysis of patients admitted with NSTEMI included in the Portuguese Registry on Acute Coronary Syndromes (ProACS) between 2002 and 2015...
January 15, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29352673/chest-pain-in-a-young-female
#7
Paul S Basel, Daniel Reschke, Michael D April
Acute Coronary Syndrome (ACS) is a common diagnosis in the emergency department (ED), the most severe manifestation of which is ST elevation on electrocardiogram (ECG). ST elevation reflects obstruction of flow through the coronary arteries, most commonly due to coronary atherosclerotic plaque rupture. However, alternative causes of coronary obstruction causing ST elevation are possible. Spontaneous coronary artery dissection (SCAD) is an unusual cause of ST elevation in ED patients which providers may encounter in patients without traditional atherosclerosis risk factors...
January 11, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29352564/optical-metabolic-imaging-of-irradiated-rat-heart-exposed-to-ischemia-reperfusion-injury
#8
Mette Funding la Cour, Shima Mehrvar, James S Heisner, Mohammad Masoudi Motlagh, Meetha Medhora, Mahsa Ranji, Amadou K S Camara
Whole thoracic irradiation (WTI) is known to cause deterioration in cardiac function. Whether irradiation predisposes the heart to further ischemia and reperfusion (IR) injury is not well known. The aim of this study is to examine the susceptibility of rat hearts to IR injury following a single fraction of 15 Gy WTI and to investigate the role of mitochondrial metabolism in the differential susceptibility to IR injury. After day 35 of irradiation, ex vivo hearts from irradiated and nonirradiated rats (controls) were exposed to 25-min global ischemia followed by 60-min IR, or hearts were perfused without IR for the same protocol duration [time controls (TC)]...
January 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29352381/myocardial-perfusion-in-patients-with-suspected-coronary-artery-disease-comparison-between-320-mdct-and-rubidium-82-pet
#9
Roberto Nery Dantas, Antonildes Nascimento Assuncao, Ismar Aguiar Marques, Mateus Guimaraes Fahel, Cesar Higa Nomura, Luiz Francisco Rodrigues Avila, Maria Clementina Pinto Giorgi, Jose Soares, Jose Claudio Meneghetti, Jose Rodrigues Parga
OBJECTIVES: Despite advances in non-invasive myocardial perfusion imaging (MPI) evaluation, computed tomography (CT) multiphase MPI protocols have not yet been compared with the highly accurate rubidium-82 positron emission tomography (82RbPET) MPI. Thus, this study aimed to evaluate agreement between 82RbPET and 320-detector row CT (320-CT) MPI using a multiphase protocol in suspected CAD patients. METHODS: Forty-four patients referred for MPI evaluation were prospectively enrolled and underwent dipyridamole stress 82RbPET and multiphase 320-CT MPI (five consecutive volumetric acquisitions during stress)...
January 19, 2018: European Radiology
https://www.readbyqxmd.com/read/29352380/integrated-prediction-of-lesion-specific-ischaemia-from-quantitative-coronary-ct-angiography-using-machine-learning-a-multicentre-study
#10
Damini Dey, Sara Gaur, Kristian A Ovrehus, Piotr J Slomka, Julian Betancur, Markus Goeller, Michaela M Hell, Heidi Gransar, Daniel S Berman, Stephan Achenbach, Hans Erik Botker, Jesper Moller Jensen, Jens Flensted Lassen, Bjarne Linde Norgaard
OBJECTIVES: We aimed to investigate if lesion-specific ischaemia by invasive fractional flow reserve (FFR) can be predicted by an integrated machine learning (ML) ischaemia risk score from quantitative plaque measures from coronary computed tomography angiography (CTA). METHODS: In a multicentre trial of 254 patients, CTA and invasive coronary angiography were performed, with FFR in 484 vessels. CTA data sets were analysed by semi-automated software to quantify stenosis and non-calcified (NCP), low-density NCP (LD-NCP, < 30 HU), calcified and total plaque volumes, contrast density difference (CDD, maximum difference in luminal attenuation per unit area) and plaque length...
January 19, 2018: European Radiology
https://www.readbyqxmd.com/read/29352151/effects-of-genetic-variants-on-platelet-reactivity-and-one-year-clinical-outcomes-after-percutaneous-coronary-intervention-a-prospective-multicentre-registry-study
#11
Hyung Joon Joo, Sung Gyun Ahn, Jae Hyoung Park, Ji Young Park, Soon Jun Hong, Seok-Yeon Kim, WoongGil Choi, HyeonCheol Gwon, Young-Hyo Lim, Weon Kim, Woong Chol Kang, Yun-Hyeong Cho, Yong Hoon Kim, JungHan Yoon, WonYong Shin, Myeong-Ki Hong, Scot Garg, Yangsoo Jang, Do-Sun Lim
Clopidogrel is the mainstay for antiplatelet treatment after percutaneous coronary intervention (PCI). The relationship of platelet reactivity and genetic polymorphism with clinical outcomes with newer-generation drug-eluting stents is unclear. We analysed 4,587 patients for the most powerful single-nucleotide polymorphisms (CYP2C19, CYP2C9, ABCB1, PON1, and P2Y12) related to on-treatment platelet reactivity (OPR). The optimal cut-off value of high OPR for major adverse thrombotic events was 266. CYP2C19 was significantly associated with high OPR and the number of CYP2C19*R (*2 or *3) alleles was proportional to the increased risk of high OPR...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351856/high-density-lipoprotein-with-apolipoprotein-c-iii-is-associated-with-carotid-intima-media-thickness-among-generally-healthy-individuals
#12
Rain Yamamoto, Frank M Sacks, Frank B Hu, Bernard Rosner, Jeremy D Furtado, Sarah A Aroner, Ele Ferrannini, Simona Baldi, Michaela Kozakova, Beverley Balkau, Andrea Natali, Majken K Jensen
BACKGROUND AND AIMS: About 6-7% of high density lipoprotein (HDL) has a protein called apolipoprotein (apo) C-III that regulates lipoprotein metabolism and can provoke an inflammatory response. HDL without apoC-III is inversely associated with coronary heart disease (CHD), whereas HDL with apoC-III is directly associated with CHD. We investigated how the presence of apoC-III affects the association between HDL and early stages of atherosclerosis measured as carotid intima-media thickness (cIMT)...
January 2, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29351794/metabolic-syndrome-severity-is-significantly-associated-with-future-coronary-heart-disease-in-type-2-diabetes
#13
Matthew J Gurka, Yi Guo, Stephanie L Filipp, Mark D DeBoer
BACKGROUND: The severity of the metabolic syndrome (MetS) is significantly associated with future coronary heart disease (CHD) among individuals without baseline Type 2 diabetes. However, the validity of assessing MetS severity among individuals with diabetes is unknown. OBJECTIVE: To assess for differences in MetS severity by timing of Type 2 diabetes diagnosis and to assess for associations between MetS severity and future CHD among individuals with diabetes. METHODS: We analyzed data from participants of the Atherosclerosis Risk in Communities study, including 1419 with- and 7241 without diabetes, followed during 4 visits and adjudicated CHD diagnoses over a 20-year period...
January 19, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29351744/risk-factors-for-first-time-acute-myocardial-infarction-patients-in-trinidad
#14
M Bahall, T Seemungal, G Legall
BACKGROUND: The relative importance of coronary artery disease (CAD) risk varies globally. The aim of this study was to determine CAD risk factors for acute myocardial infarction (AMI) among patients in public health care institutions in Trinidad using a case-control type study design. METHODS: The sample comprised 251 AMI patients hospitalized between March 1, 2011 and April 30, 2012 and 464 age- and sex-matched non-AMI patients with no terminal or life-threatening illness and who did not undergo treatment for CAD...
January 19, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29351739/a-study-of-the-association-of-rs12040273-with-susceptibility-and-severity-of-coronary-artery-disease-in-a-chinese-han-population
#15
Bo Yang, Shan Yan, Jianjun Yan, Yafei Li, Mohammad Reeaze Khurwolah, Liansheng Wang, Zhong Chen
BACKGROUND: The single nucleotide polymorphism (SNP) rs12040273, a variant of UDP-N-acetylgalactosamine, polypeptide GalNAc-transferase 2, has recently been reported to be significantly associated with development of carotid artery intima-media thickness (IMT) in a Chinese population based on a genome-wide association study. Because IMT is a potent marker of coronary artery disease (CAD), the aim of this study was to evaluate the relation of rs12040273 to susceptibility and severity of CAD in a Chinese Han population...
January 19, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29351697/roles-of-transit-time-flow-measurement-for-coronary-artery-bypass-surgery
#16
Yoshiyuki Takami, Yasushi Takagi
Transit-time flow measurement (TTFM) has been increasingly applied to detect graft failure during coronary artery bypass grafting (CABG), because TTFM is less invasive, more reproducible, and less time consuming. Many authors have attempted to validate TTFM and to gain the clear cutoff values and algorithm in TTFM to predict graft failure. The TTFM technology has also been shown to be a useful tool to investigate CABG graft flow characteristics and coronary circulation physiology. It is important to recognize the practical roles of TTFM in the cardiac operating room by review and summarize the literatures...
January 19, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29351645/dosimetry-during-percutaneous-coronary-interventions-of-chronic-total-occlusions
#17
Jérémie Dabin, Joren Maeremans, Danielle Berus, Werner Schoonjans, Giulia Tamborino, Jo Dens, Peter Kayaert
Percutaneous coronary interventions (PCI) of coronary chronic total occlusions (CTO) increase the risk of high radiation exposure for both the patient and the cardiologist. This study evaluated the maximum dose to the patients' skin (MSD) and the exposure of the cardiologists during CTO-PCI. Moreover, the efficiency of radioprotective drapes to reduce cardiologist exposure was assessed. Patient dose was measured during 31 procedures; dose to the cardiologist's extremities were measured during 65 procedures, among which 31 were performed with radioprotective drapes...
January 17, 2018: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29351624/takotsubo-cardiomyopathy-associated-with-work-place-bullying
#18
Halla Malik, Nadarajah Kangaharan, Ian Agahari
Background: Takotsubo cardiomyopathy (TC) is a condition of transient left ventricular dysfunction precipitated by acute physical or emotional stress. The pathogenesis of TC is not well understood, but it is known to predominantly affect postmenopausal women in the context of physical or emotional triggers. Aims: To describe a case of TC with an association to a never previously described work place stressor of bullying. Case Report: A 48-year-old female lawyer developed acute chest pain after experiencing significant emotional distress at a workplace meeting...
January 17, 2018: Occupational Medicine
https://www.readbyqxmd.com/read/29351613/the-beginning-at-the-end-non-invasive-assessment-of-post-transplant-coronary-allograft-vasculopathy-at-the-microcirculatory-level
#19
Ornella Rimoldi, Paolo G Camici
No abstract text is available yet for this article.
December 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29351461/exercise-training-induces-enos-coupling-and-restores-relaxation-in-coronary-arteries-of-heart-failure-rats
#20
Gisele Kruger Couto, Suliana Mesquita Paula, Igor L Gomes-Santos, Carlos Eduardo Negrão, Luciana Venturini Rossoni
Exercise training (ET) has emerged as a non-pharmacological therapy for cardiovascular diseases because of its helpful milieu for improving vascular function. The aim of the present study was to assess whether ET reverses the alterations in vascular reactivity observed in heart failure (HF)-related coronary arteries and to elucidate the molecular mechanisms involved in these adjustments. Male Wistar rats were subjected to either coronary artery ligation or sham operation (SO). Four weeks after the surgery, the rats were divided into two groups: untrained HF (UHF) and exercise-trained HF (THF)...
January 5, 2018: American Journal of Physiology. Heart and Circulatory Physiology
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