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myocardial infarction with normal coronary artery

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https://www.readbyqxmd.com/read/28932553/the-relationship-between-apnoea-hypopnoea-index-and-gensini-score-in-patients-with-acute-myocardial-infarction-undergoing-emergency-primary-percutaneous-coronary-intervention
#1
Cai-Ping Zhu, Tao-Ping Li, Xiao Wang, Yu-Hua Zhao, Shi-Xi Zhou, Yan Fu, Yi-Wei Jiang, Xue-Ping Xiao
BACKGROUND: Sleep apnoea hypopnoea syndrome (SAHS) is characterised by repetitive nocturnal hypoxemia and has a high prevalence among patients with acute myocardial infarction (AMI). But there are few studies on patients with AMI undergoing emergency primary percutaneous coronary intervention (pPCI). In this study, we want to find the prevalence of SAHS among patients with AMI undergoing emergency pPCI and determine whether SAHS would worsen the condition among these people, and especially affect the damage degree of the coronary artery...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28931784/mobilized-muse-cells-after-acute-myocardial-infarction-predict-cardiac-function-and-remodeling-in-the-chronic-phase
#2
Toshiki Tanaka, Kazuhiko Nishigaki, Shingo Minatoguchi, Takahide Nawa, Yoshihisa Yamada, Hiromitsu Kanamori, Atsushi Mikami, Hiroaki Ushikoshi, Masanori Kawasaki, Mari Dezawa, Shinya Minatoguchi
BACKGROUND: Multilineage differentiating stress-enduring (Muse) cells are SSEA3(+)and CD105(+)double-positive pluripotent-like stem cells. We aimed to examine the mobilization of Muse cells into peripheral blood after acute myocardial infarction (AMI) and their effects on left ventricular (LV) function and remodeling.Methods and Results:In 79 patients with AMI, 44 patients with coronary artery disease (CAD), and 64 normal subjects (Control), we measured the number of Muse cells in the peripheral blood by fluorescence-activated cell sorting...
September 20, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28918896/role-of-circulating-endothelial-progenitor-cells-in-the-reparative-mechanisms-of-stable-ischemic-myocardium
#3
D Morrone, F Felice, C Scatena, A De Martino, M L E Picoi, N Mancini, S Blasi, M Menicagli, R Di Stefano, U Bortolotti, A G Naccarato, A Balbarini
BACKGROUND: Mobilization of endothelial progenitor cells (EPCs) into circulation from bone marrow in patients with acute myocardial infarction has strong scientific evidence; less is known about EPC mobilization in patients with stable coronary artery disease (CAD). The aim of this study was to investigate the association of stable ischemic heart disease with EPC levels in tissue and blood. METHODS: Fifty-five consecutive patients admitted to a single treatment center for valve or coronary artery bypass grafting (CABG) surgeries were included in the study...
September 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28918050/the-function-and-therapeutic-potential-of-long-non-coding-rnas-in-cardiovascular-development-and-disease
#4
REVIEW
Clarissa P C Gomes, Helen Spencer, Kerrie L Ford, Lauriane Y M Michel, Andrew H Baker, Costanza Emanueli, Jean-Luc Balligand, Yvan Devaux
The popularization of genome-wide analyses and RNA sequencing led to the discovery that a large part of the human genome, while effectively transcribed, does not encode proteins. Long non-coding RNAs have emerged as critical regulators of gene expression in both normal and disease states. Studies of long non-coding RNAs expressed in the heart, in combination with gene association studies, revealed that these molecules are regulated during cardiovascular development and disease. Some long non-coding RNAs have been functionally implicated in cardiac pathophysiology and constitute potential therapeutic targets...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28916890/coronary-calcium-score-influences-referral-for-invasive-coronary-angiography-after-normal-myocardial-perfusion-spect
#5
Shu Yokota, Mohamed Mouden, Jan Paul Ottervanger, Elsemiek Engbers, Pieter L Jager, Jorik R Timmer, Siert Knollema
BACKGROUND: In patients with normal SPECT but persistent complaints, invasive angiography may exclude obstructive coronary disease. We assessed whether high coronary artery calcium (CAC) scores are associated with increased referral for invasive angiography following normal SPECT. METHODS AND RESULTS: 2286 consecutive patients (mean age 60 ± 12, 39% male) with normal SPECT were assessed. All patients underwent simultaneous CAC scoring. Patients were categorized into four groups based on their CAC score: CAC = 0 (n = 694), CAC 1 to 100 (n = 891), CAC 101 to 400 (n = 368), and CAC >400 (n = 333)...
September 15, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28894747/mirna-expression-profile-and-effect-of-wenxin-granule-in-rats-with-ligation-induced-myocardial-infarction
#6
Aiming Wu, Lixia Lou, Jianying Zhai, Dongmei Zhang, Limin Chai, Bo Nie, Haiyan Zhu, Yonghong Gao, Hongcai Shang, Mingjing Zhao
Wenxin Granule (WXKL) is a traditional Chinese medicine used for treatment of myocardial infarction (MI) and arrhythmias. However, the genomic pathological mechanisms of MI and mechanisms of WXKL are largely unknown. This study aims to investigate a comprehensive miRNA expression profile, and the predicted correlation pathways to be targeted by differentially expressed miRNAs in MI, and mechanisms of WXKL from a gene level. MI rat model was established by a coronary artery ligation surgery. miRNA expression microarrays were performed and the data were deposited in Gene Expression Omnibus (GEO number GSE95855)...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28890308/left-ventricular-mass-geometry-and-function-in-diabetic-patients-affected-by-coronary-artery-disease
#7
Maria Maiello, Annapaola Zito, Santa Carbonara, Marco Matteo Ciccone, Pasquale Palmiero
INTRODUCTION: Coronary artery disease (CAD) is quite common among diabetic patients, our study goal is to detect the prevalence of left ventricular (LV) adverse changes in geometry, mass and diastolic function on diabetic, but not hypertensive patients, with coronary artery disease(CAD) and LV ejection fraction(LVEF)>45%, actually unknown, because of current guidelines that do not include echocardiographic assessment for follow up of diabetic patients. PATIENTS AND METHODS: 665 consecutive diabetic patients (443 females, mean age 66±9years), performed a complete echocardiographic assessment according to current ASE echo-guidelines: diastolic dysfunction (DD), eccentric hypertrophy (EH), concentric hypertrophy (CH) and concentric remodeling (CR) of LV were reported...
October 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28882587/low-levels-of-apolipoprotein-cii-in-normotriglyceridemic-patients-with-very-premature-coronary-artery-disease-observations-from-the-mission-intervention-study
#8
Maaike P J Hermans, Mathijs C Bodde, J Wouter Jukema, Martin J Schalij, Arnoud van der Laarse, Christa M Cobbaert
BACKGROUND: While the overall acute myocardial infarction rates declined in women and men, premature acute myocardial infarction rates remained stable in men and increased in women. OBJECTIVE: The purpose of this study was to assess whether baseline apolipoprotein (apo) levels, clinical characteristics, and follow-up of patients with very premature coronary artery disease (CAD) could provide novel clues for the identification of high-risk individuals. METHODS: Apos were measured with a validated quantification liquid chromatography-mass spectrometry method in a well-defined cohort of 38 patients aged ≤45 years admitted with acute ST-segment elevation myocardial infarction...
August 8, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28870153/myocardial-infarction-during-anaphylaxis-in-a-young-healthy-male-with-normal-coronary-arteries-is-epinephrine-the-culprit
#9
W D Jayamali, H M M T B Herath, Aruna Kulathunga
BACKGROUND: Anaphylaxis is an acute, potentially fatal medical emergency. Myocardial injury or infarction in the setting of an anaphylaxis can be due the anaphylaxis itself, when it is known as Kounis syndrome or it can also be due to the effect of epinephrine treatment. Epinephrine is considered as the cornerstone in management of anaphylaxis. Myocardial infarction secondary to therapeutic doses of adrenaline is a rare occurrence and only a few cases have been reported in literature...
September 4, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28864322/impact-of-body-mass-index-on-5-year-clinical-outcomes-in-patients-with-st-segment-elevation-myocardial-infarction-after-everolimus-eluting-or-bare-metal-stent-implantation
#10
Elisabetta Moscarella, Giosafat Spitaleri, Salvatore Brugaletta, Sara Sentí Farrarons, Alberto Pernigotti, Luis Ortega-Paz, Angel Cequier, Andrés Iñiguez, Antonio Serra, Pilar Jiménez-Quevedo, Vicente Mainar, Gianluca Campo, Maurizio Tespili, Peter den Heijer, Armando Bethencourt, Nicolás Vazquez, Marco Valgimigli, Patrick W Serruys, Manel Sabaté
Patients with high body mass index (BMI) seem to have better outcomes after percutaneous coronary intervention than normal-weight patients. However, contrasting results have been reported on the "obesity paradox" in patients presenting with ST-elevation myocardial infarction (STEMI). The aim of our study was to investigate the impact of BMI on mortality in the population enrolled in the Evaluation of the Xience-V stent in Acute Myocardial INfArcTION (EXAMINATION) trial. The EXAMINATION trial randomized 1,498 patients with STEMI to a bare-metal stent or an everolimus-eluting stent...
July 31, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28858542/detection-of-myocardial-infarction-using-delayed-enhancement-dual-energy-ct-in-stable-patients
#11
Gaston A Rodriguez-Granillo, Roxana Campisi, Alejandro Deviggiano, Maria N Lopez de Munain, Macarena De Zan, Carlos Capunay, Patricia Carrascosa
OBJECTIVE: The objective of our study was to explore whether delayed enhancement dual-energy CT (DECT) allows the detection of myocardial infarcts in stable patients. SUBJECTS AND METHODS: Patients with known or suspected coronary artery disease clinically referred for myocardial perfusion imaging using SPECT were prospectively included. All patients (n = 34) also underwent stress, rest, and delayed enhancement DECT on a DECT scanner. At SPECT, segments with myocardial infarction (MI) were defined as those with a summed rest score of ≥ 2 in two or more consecutive segments, and a diagnosis of MI was supported by wall motion abnormalities, clinical history, and ECG findings...
August 31, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28844446/recurrent-unexpected-myocardial-infarction-in-a-young-woman-insights-on-spontaneous-coronary-artery-dissection-and-multimodality-imaging
#12
Vincent Roule, Katrien Blanchart, Adrien Lemaitre, Mathieu Bignon, Rémi Sabatier, Farzin Beygui
A 45-year-old female was admitted for a transient anterior ST-segment elevation myocardial infarction (STEMI). Coronary angiogram showed a diffuse severe stenosis of the distal left anterior descending (LAD) coronary artery, which was managed medically. Three years later, a recurrent transient anterior STEMI led to a second coronary angiography showing a tubular stenosis of the mid-LAD with normal distal coronary bed. An optical coherence tomography (OCT) revealed a spontaneous coronary artery dissection (SCAD) with an extensive compressive mural hematoma without any intimal tear...
July 19, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28837679/influence-of-coronary-architecture-on-the-variability-in-myocardial-infarction-induced-by-coronary-ligation-in-rats
#13
Satoshi Kainuma, Shigeru Miyagawa, Satsuki Fukushima, Hirotsugu Tsuchimochi, Takashi Sonobe, Yutaka Fujii, James T Pearson, Atsuhiro Saito, Akima Harada, Koichi Toda, Mikiyasu Shirai, Yoshiki Sawa
It has been shown that the size of myocardial infarction in rats created by coronary ligation technique is not uniform, varying from 4% to 65%. We hypothesized that infarct size variability induced by coronary artery ligation might be caused by coronary artery branching pattern. Coronary artery angiography was performed in 50 normal Lewis rats and in chronic myocardial infarction models in which coronary artery was ligated immediately below the left atrial appendage or 2mm distal to the left atrial appendage (n = 25 for each), followed by histological analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28810603/intratracheal-administration-of-isosorbide-dinitrate-improves-pulmonary-artery-pressure-and-ventricular-remodeling-in-a-rat-model-of-heart-failure-following-myocardial-infarction
#14
Xuelian Wang, Qingqing Xu, Tianqi Li, Yaocong Rong, Weilin Hong, Yan Huang, Xingui Guo
Pulmonary hypertension due to left heart disease is associated with poor outcomes. This study investigated the beneficial effects of isosorbide dinitrate (ISDN) inhalation on pulmonary pressure and ventricular remodeling in a rat model of heart failure (HF) following myocardial infarction (MI). To assess the effect of ISDN on pulmonary pressure, 20 male Sprague-Dawley (SD) rats were randomized to four groups: Normal saline (NS) 1 ml/kg, ISDN 1 mg/kg, NS 3 ml/kg or ISDN 3 mg/kg following coronary ligation. Assessments included pulmonary and systemic artery pressure alterations, lung weight/body weight and plasma nitric oxide (NO) concentration...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28801416/outcome-of-revascularisation-in-stable-coronary-artery-disease-without-ischaemia-a-danish-registry-based-follow-up-study
#15
Jane Angel Simonsen, Hans Mickley, Allan Johansen, Søren Hess, Anders Thomassen, Oke Gerke, Lisette O Jensen, Jesper Hallas, Werner Vach, Poul F Hoilund-Carlsen
OBJECTIVES: In stable coronary artery disease (CAD), coronary revascularisation may reduce mortality of patients with a certain amount of left ventricular myocardial ischaemia. However, revascularisation does not always follow the guidance suggested by ischaemia testing. We compared outcomes in patients without ischaemia who had either revascularisation or medical treatment. DESIGN AND POPULATION: Based on registries, 1327 consecutive patients with normal myocardial perfusion scintigraphy (MPS) and 278 with fixed perfusion defects were followed for a median of 6...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28795637/do-angptl-4-and-galectin-3-reflect-the-severity-of-coronary-artery-disease
#16
Luxitaa Goenka, Melvin George, Vishakha Singh, Amrita Jena, Deepika Seshadri, Vasanth Karunakaran, Dhandapani Vellala Elumalai, Jamuna Rani, Ilango Kaliappan
BACKGROUND: Coronary artery disease (CAD) is one of the leading causes of mortality and morbidity worldwide. We thereby sought to investigate whether the biomarkers, angiopoietin-like 4 (ANGPTL-4) and galectin-3, reflect the severity of CAD. METHODS: Patients were screened based on inclusion/exclusion criteria and written informed consent was obtained from the patients. Serum ANGPTL-4 and galectin-3 was quantified using enzyme-linked immunosorbent assay (ELISA) and correlated with the Global Registry of Acute Coronary Events (GRACE) and GENSINI score using Spearman's rank correlation coefficient and multivariate analysis...
August 1, 2017: Therapeutic Advances in Cardiovascular Disease
https://www.readbyqxmd.com/read/28790123/prognostic-significance-of-nonobstructive-left-main-coronary-artery-disease-in-women-versus-men-long-term-outcomes-from-the-confirm-coronary-ct-angiography-evaluation-for-clinical-outcomes-an-international-multicenter-registry
#17
MULTICENTER STUDY
Joe X Xie, Parham Eshtehardi, Tina Varghese, Abhinav Goyal, Puja K Mehta, William Kang, Jonathon Leipsic, Bríain Ó Hartaigh, C Noel Bairey Merz, Daniel S Berman, Heidi Gransar, Matthew J Budoff, Stephan Achenbach, Tracy Q Callister, Hugo Marques, Ronen Rubinshtein, Mouaz H Al-Mallah, Daniele Andreini, Gianluca Pontone, Filippo Cademartiri, Erica Maffei, Kavitha Chinnaiyan, Gilbert Raff, Martin Hadamitzky, Joerg Hausleiter, Gudrun Feuchtner, Philipp A Kaufmann, Todd C Villines, Benjamin J W Chow, James K Min, Leslee J Shaw
BACKGROUND: Patients with obstructive (≥50% stenosis) left main (LM) coronary artery disease (CAD) are at high risk for adverse events; prior studies have also documented worse outcomes among women than men with severe multivessel/LM CAD. However, the prognostic significance of nonobstructive (1%-49% stenosis) LM CAD, including sex-specific differences, has not been previously examined. METHODS AND RESULTS: In the long-term CONFIRM (Coronary CT Angiography Evaluation For Clinical Outcomes: An International Multicenter) registry, patients underwent elective coronary computed tomographic angiography for suspected CAD and were followed for 5 years...
August 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28779859/double-right-coronary-artery-in-primary-pci-finding-the-hidden-treasure%C3%A2
#18
Luciano Candilio, Roberto Nerla, Jonathan Byrne
Double Right Coronary Artery (RCA) is one of the rarest congenital coronary anomalies. Although it can be regarded as a benign condition in the vast majority of cases, it has been associated with acute and life-threatening presentations, including inferior ST-segment elevation myocardial infarction (STEMI), cardiogenic shock and complete heart block, tachyarrhythmias, or even sudden death. However, the role of a double RCA in these conditions is yet to be clarified as more recent data prove no statistically significant association between prevalence of significant atherosclerosis in anomalous coronary arteries in comparison to normal coronary arteries...
July 5, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28774379/fibrogenic-potential-of-pw1-peg3-expressing-cardiac-stem-cells
#19
Elisa Yaniz-Galende, Maguelonne Roux, Sophie Nadaud, Nathalie Mougenot, Marion Bouvet, Olivier Claude, Guillaume Lebreton, Catherine Blanc, Florence Pinet, Fabrice Atassi, Claire Perret, France Dierick, Sébastien Dussaud, Pascal Leprince, David-Alexandre Trégouët, Giovanna Marazzi, David Sassoon, Jean-Sébastien Hulot
BACKGROUND: Pw1 gene expression is a marker of adult stem cells in a wide range of tissues. PW1-expressing cells are detected in the heart but are not well characterized. OBJECTIVES: The authors characterized cardiac PW1-expressing cells and their cell fate potentials in normal hearts and during cardiac remodeling following myocardial infarction (MI). METHODS: A human cardiac sample was obtained from a patient presenting with reduced left ventricular (LV) function following a recent MI...
August 8, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28772050/the-neuroprotective-agent-rasagiline-mesylate-attenuates-cardiac-remodeling-after-experimental-myocardial-infarction
#20
Aimilia Varela, Manolis Mavroidis, Michalis Katsimpoulas, Irini Sfiroera, Niki Kappa, Angelica Mesa, Nikolaos G Kostomitsopoulos, Dennis V Cokkinos
AIM: Rasagiline mesylate (N-propargyl-1 (R)-aminoindan) (RG) is a selective, potent irreversible inhibitor of monoamine oxidase-B with cardioprotective and anti-apoptotic properties. We investigated whether it could be cardioprotective in a rat model undergoing experimental myocardial infarction (MI) by permanent ligation of the left anterior descending coronary artery. METHODS AND RESULTS: RG was administered, intraperitoneally, for 28 days (2 mg/kg) starting 24 h after MI induction...
August 2017: ESC Heart Failure
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