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myocardial infarction with normal coronary artery

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https://www.readbyqxmd.com/read/27901035/homocysteine-reducing-b-vitamins-and-ischemic-heart-disease-a-separate-sample-mendelian-randomization-analysis
#1
J V Zhao, C M Schooling
BACKGROUND/OBJECTIVES: Observationally, homocysteine is positively associated with ischemic heart disease (IHD) and unhealthy lipids; folate and vitamin B12, which reduce homocysteine, are associated with lower IHD risk and healthy lipids. Randomized controlled trials have shown no benefits of folate and vitamin B12 for IHD. To clarify the role of these potential targets of intervention in IHD we assessed how genetically determined homocysteine, folate and vitamin-B12-affected IHD and lipids...
November 30, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27894326/preserved-autoregulation-of-coronary-flow-after-off-pump-coronary-artery-bypass-grafting-retrospective-assessment-of-intraoperative-transit-time-flowmetry-with-and-without-intra-aortic-balloon-counterpulsation
#2
Hiroyuki Nakajima, Atsushi Iguchi, Mimiko Tabata, Masaru Kambe, Masahiro Ikeda, Kazuhiko Uwabe, Toshihisa Asakura, Hiroshi Niinami
BACKGROUND: Intra-aortic balloon pumping (IABP) markedly increases graft flow after coronary artery bypass grafting (CABG) with cardiopulmonary bypass. We sought to delineate the effects of IABP on graft flow after off-pump CABG (OPCAB). METHODS: The clinical records of 32 patients (25 male, 7 female; mean age: 70 ± 9 years) who underwent OPCAB with IABP between January 2011 and May 2015 were retrospectively reviewed. Thirteen patients (41%) had a history of myocardial infarction, and 13 patients (41%) had a history of percutaneous coronary intervention...
November 28, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27894059/left-ventricular-diastolic-dysfunction-in-patients-with-st-elevation-myocardial-infarction-following-early-and-late-reperfusion-by-coronary-intervention
#3
Xianghui Chen, Fucheng Liu, Honggui Xu, Daogang Zha, Jiancheng Xiu, Jun Guo, Aidong Zhang
BACKGROUND: This study prospectively assessed the left ventricular (LV) diastolic function changes in patients with ST-elevation myocardial infarction (STEMI) and determined if the early revascularization of the infarct-related coronary artery in acute phase achieve a better recovery of diastolic function than late recanalization. METHODS: Forty-five consecutive patients (61.20±11.37years, 8 females) presenting with STEMI and treated with PCI were prospectively enrolled in this study...
November 24, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27882321/micrornas-in-coronary-heart-disease-ready-to-enter-the-clinical-arena
#4
REVIEW
Elena Cavarretta, Giacomo Frati
Coronary artery disease (CAD) and its complication remain the leading cause of mortality in industrialized countries despite great advances in terms of diagnosis, prognosis, and treatment options. MicroRNAs (miRNAs), small noncoding RNAs, act as posttranscriptional gene expression modulators and have been implicated as key regulators in several physiological and pathological processes linked to CAD. Circulating miRNAs have been evaluated as promising novel biomarkers of CAD, acute coronary syndromes, and acute myocardial infarction, with prognostic implications...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27882121/stress-induced-cardiomyopathy-following-infection-of-the-upper-respiratory-tract-in-an-elderly-female-patient-a-case-report
#5
Huaiyu Ding, Rongchong Huang, Xiaoli Shi, Baolin Wu
Stress-induced cardiomyopathy (SIC), also known as takotsubo cardiomyopathy (TTC), is a relatively newly-described condition, which has been increasingly reported in the literature. It is characterized by acute onset of symptoms and electrocardiogram changes mimicking myocardial infarction, with transient but completely reversible left ventricular (LV) dysfunction. SIC commonly occurs following physical or emotional stress. The present study discusses the case of a 68-year-old female patient who had suffered from infection of the upper respiratory tract for 10 days before admission to the hospital with symptoms of chest stuffiness and dyspnea that persisted for 2 days...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881559/safety-and-tolerability-of-csl112-a-reconstituted-infusible-plasma-derived-apolipoprotein-a-i-after-acute-myocardial-infarction-the-aegis-i-trial-apoa-i-event-reducing-in-ischemic-syndromes-i
#6
C Michael Gibson, Serge Korjian, Pierluigi Tricoci, Yazan Daaboul, Megan Yee, Purva Jain, John H Alexander, P Gabriel Steg, A Michael Lincoff, John J P Kastelein, Roxana Mehran, Denise M D'Andrea, Lawrence I Deckelbaum, Bela Merkely, Maciej Zarebinski, Ton Oude Ophuis, Robert A Harrington
BACKGROUND: -Human or recombinant apolipoprotein A-I (apoA-I) has been shown to increase high-density lipoprotein-mediated cholesterol efflux capacity and to regress atherosclerotic disease in animal and clinical studies. CSL112 is an infusible, plasma-derived apoA-I that has been studied in normal subjects or those with stable coronary artery disease. This study aimed to characterize the safety, tolerability, pharmacokinetics, and pharmacodynamics of CSL112 in patients with a recent acute myocardial infarction...
November 15, 2016: Circulation
https://www.readbyqxmd.com/read/27842619/congenital-coronary-artery-anomalies-in-adults-review-of-111-cases-from-a-single-centre-experience
#7
Yiğit Çanga, Tolga S Güvenç, Mehmet B Karataş, Ali N Çalık, Tolga Onuk, Veysel O Tanık, Barış Güngör, Osman Bolca
BACKGROUND: Coronary artery anomalies are a heterogeneous group of congenital disorders presenting with a wide spectrum of symptoms, ranging from vague chest pain to sudden cardiac death. Despite available data, there is no consensus about the classification, nomenclature, and outcomes of coronary anomalies in the normally connected heart. In this study, we aimed to investigate clinical and angiographic characteristics of coronary arterial anomalies, as well as the frequency of atherosclerotic involvement in anomalous coronaries, diagnosed at a tertiary referral centre...
November 15, 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/27831644/study-on-the-levels-of-uric-acid-and-high-sensitivity-c-reactive-protein-in-acs-patients-and-their-relationships-with-the-extent-of-the-coronary-artery-lesion
#8
Q-Q Ma, X-J Yang, N-Q Yang, L Liu, X-D Li, K Zhu, Q Fu, P Wei
OBJECTIVE: We evaluated uric acid (UA) and high-sensitivity C-reactive protein (hs-CRP) levels in different clinical types of acute coronary syndromes (ACS) and in relationship with the severity of coronary artery lesions. Furthermore, we explored its clinical significance. PATIENTS AND METHODS: From June 2013 to January 2015, we studied patients in their first onset of symptoms and hospitalization for coronary angiography. According to coronary angiography results, we divided patients into two groups: 93 patients with ACS and 30 patients with normal coronary arteries as the control group...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27822012/cardioprotective-activity-of-placental-growth-factor-combined-with-oral-supplementation-of-l-arginine-in-a-rat-model-of-acute-myocardial-infarction
#9
Liyun Luo, Bairong Chen, Yin Huang, Zibin Liang, Songbiao Li, Yuelan Yin, Jian Chen, Wei Wu
OBJECTIVE: Exogenous administration of placental growth factor (PlGF) stimulates angiogenesis and improves ventricular remodeling after acute myocardial infarction (AMI), and supplementation with l-arginine ameliorates endothelial function. The objective of the present study was to compare the cardioprotective effects of combination therapy of PlGF and l-arginine with those of direct administration of PlGF alone in a rat model of AMI. MATERIALS AND METHODS: Fifty male Sprague Dawley rats were randomly divided into five groups: sham group, normal saline group, l-arginine group, PlGF group, and combination group (PlGF + l-arginine)...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27817748/dark-blood-late-enhancement-imaging
#10
Peter Kellman, Hui Xue, Laura J Olivieri, Russell R Cross, Elena K Grant, Marianna Fontana, Martin Ugander, James C Moon, Michael S Hansen
BACKGROUND: Bright blood late gadolinium enhancement (LGE) imaging typically achieves excellent contrast between infarcted and normal myocardium. However, the contrast between the myocardial infarction (MI) and the blood pool is frequently suboptimal. A large fraction of infarctions caused by coronary artery disease are sub-endocardial and thus adjacent to the blood pool. It is not infrequent that sub-endocardial MIs are difficult to detect or clearly delineate. METHODS: In this present work, an inversion recovery (IR) T2 preparation was combined with single shot steady state free precession imaging and respiratory motion corrected averaging to achieve dark blood LGE images with good signal to noise ratio while maintaining the desired spatial and temporal resolution...
November 7, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27814787/relation-between-renal-function-and-coronary-plaque-morphology-from-the-assessment-of-dual-antiplatelet-therapy-with-drug-eluting-stents-virtual-histology-intravascular-ultrasound-substudy
#11
Chee Yang Chin, Gary S Mintz, Shigeo Saito, Bernhard Witzenbichler, D Christopher Metzger, Michael J Rinaldi, Ernest L Mazzaferri, Peter L Duffy, Giora Weisz, Thomas D Stuckey, Bruce R Brodie, Claire Litherland, Ajay J Kirtane, Gregg W Stone, Akiko Maehara
We sought to examine the relation between various degrees of renal function and coronary plaque morphology by grayscale and virtual histology intravascular ultrasound (IVUS). ADAPT-DES was a prospective, multicenter registry of 8,582 consecutive patients treated using coronary drug-eluting stents with a prespecified grayscale and virtual histology-IVUS substudy. A lesion-level analysis of study participants was performed by comparing IVUS parameters of culprit and nonculprit lesions across tertiles of estimated creatinine clearance (CrCl)...
October 7, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27801921/a-case-of-ileus-and-st-segment-elevation
#12
Osama Siddique, Somwail Rasla, Seth Clark, Aravind Kokkirala
ST segment elevation is associated with non-cardiac pathologies but is not as well reported as myocardial infarction. We present a case of a 63-year-old man who was admitted for an overdose on cyclobenzaprine with signs of anti-cholinergic toxicity. He developed signs of ileus on imaging and became progressively obtunded. He was noted to have ST segment elevations on electrocardiogram (EKG) with no troponin elevation. Patient required urgent catheterization which showed normal coronary arteries. His bowel was decompressed subsequently resulting in resolution of the ST segment changes...
November 1, 2016: Rhode Island Medical Journal
https://www.readbyqxmd.com/read/27797464/bioresorbable-vascular-scaffolds-for-the-treatment-of-coronary-artery-disease-clinical-outcomes-from-randomized-controlled-trials
#13
David G Rizik, James B Hermiller, Dean J Kereiakes
The permanent metal prosthesis common to bare metal stents (BMS) as well as both first- and second-generation drug-eluting stents (DES) following treatment of coronary artery disease represents a long-lasting substrate for late adverse coronary events including restenosis, thrombosis, and neoatherosclerosis. Following resorbtion, bioresorbable scaffolds (BRS) may eliminate this nidus and improve late outcomes through restoration of the vessel to more normal vascular structure and function. BRS represents a single platform which incorporates the mechanical features of metallic stents to provide safe and effective revascularization, suppression of restenosis and prevention of constrictive remodeling with long-term restoration of the treated vessel to a more natural state...
November 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27788233/the-predictive-role-of-serum-triglyceride-to-high-density-lipoprotein-cholesterol-ratio-according-to-renal-function-in-patients-with-acute-myocardial-infarction
#14
Jin Sug Kim, Weon Kim, Jong Shin Woo, Tae Won Lee, Chun Gyoo Ihm, Yang Gyoon Kim, Joo Young Moon, Sang Ho Lee, Myung Ho Jeong, Kyung Hwan Jeong
OBJECTIVE: A high serum triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio has been reported as an independent predictor for cardiovascular events in the general population. However, the prognostic value of this ratio in patients with renal dysfunction is unclear. We examined the association of the TG/HDL-C ratio with major adverse cardiovascular events (MACEs) according to renal function in patients with acute myocardial infarction (AMI). METHOD: This study was based on the Korea Acute Myocardial Infarction Registry database...
2016: PloS One
https://www.readbyqxmd.com/read/27765299/prognostic-value-of-coronary-artery-calcium-score-in-acute-chest-pain-patients-without-known-coronary-artery-disease-systematic-review-and-meta-analysis
#15
REVIEW
Kongkiat Chaikriangkrai, Ghanshyam Palamaner Subash Shantha, Hye Yeon Jhun, Patompong Ungprasert, Gardar Sigurdsson, Faisal Nabi, John J Mahmarian, Su Min Chang
STUDY OBJECTIVE: Coronary artery calcium score (CACS) is a well-established test for risk stratifying asymptomatic patients. Recent studies also indicate that CACS may accurately risk stratify stable patients presenting to the emergency department (ED) with acute chest pain; however, many were underpowered. The purpose of this systematic review and meta-analysis is to evaluate the prognostic value and accuracy of a zero (normal) CACS for identifying patients at acceptable low risk for future cardiovascular events who might be safely discharged home from the ED...
December 2016: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27762513/etiology-and-left-ventricular-functions-in-left-bundle-branch-block-a-prospective-observational-study
#16
Rajeev Bhardwaj
PURPOSE OF STUDY: Left bundle branch (LBBB) is common ECG finding. Common causes of LBBB are coronary artery disease (CAD), hypertension and dilated cardiomyopathy (DCM). Purpose of the study was to find out the etiology and left ventricular function in patients coming to a territory care hospital. MATERIAL AND METHODS: All consecutive patients coming to our hospital as indoor or outdoor patients with ECG suggestive of LBBB were studied. The detail history and examination was done...
September 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27759750/pheochromocytoma-presenting-as-a-mimic-of-acute-coronary-syndrome
#17
Yasmin Hakim, Anna Forbes, Momina Khan, Benjamin C Whitelaw
Chest pain with elevated serum troponin is a common clinical presentation and is normally managed as suspected myocardial infarction or acute coronary syndrome (ACS). We report a 49 year old man who presented with central chest pain sweating and breathlessness. He had a significantly elevated serum troponin I level and a subsequent angiogram showed near normal coronary arteries. He was subsequently investigated for fever and found to have a 3cm right sided adrenal mass consistent with a pheochromocytoma. After confirmation and appropriate blockade laparoscopic adrenalectomy was performed...
2016: Acute Medicine
https://www.readbyqxmd.com/read/27759421/takotsubo-cardiomyopathy-following-recurrent-doses-of-albuterol-due-to-asthma-attack-a-very-rare-case-report
#18
Saeed Alipour Parsa, Isa Khaheshi, Mehdi Memaryan, Mohammadreza Naderian
To present an unusual case in order to clarify one of the most important differential diagnoses of ST-elevation myocardial infarction in a postmenopausal woman. A 72-year-old woman with asthma attack and retrosternal chest pain was presented to our emergency unit. She had used albuterol spray ten-times before admission due to accentuated dyspnea. Initial ECG revealed ST-segment elevation in leads V1-V6, I and aVL. Emergent coronary angiography indicated normal coronary arteries, and left ventriculography showed significant akinesia of apical segments...
November 2016: Future Cardiology
https://www.readbyqxmd.com/read/27753830/sy-03-3-overview-of-somatic-mutations-and-epigenetic-regulation-of-aldosterone-producing-adenoma-apa
#19
Satoshi Umemura
Primary aldosteronism (PA) is a heterogeneous group of disorders including both sporadic and familial forms (familial hyperaldosteronism type I, II and III). PA is the most frequent endocrine cause of secondary hypertension and associated with a higher rate of cardiovascular complications, compared with essential hypertension.Here I review the recent progress in understanding of the genetic and molecular mechanisms leading to autonomous aldosterone production in PA.Systematic screening detects primary aldosteronism in 5 to 10% of all patients with hypertension and in approximately 20% of patients with resistant hypertension...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27752607/subarachnoid-hemorrhage-mimicking-st-segment-elevation-myocardial-infarction-after-return-of-spontaneous-circulation
#20
Injune Park, Youn Jung Kim, Shin Ahn, Chang Hwan Sohn, Dong Woo Seo, Won Young Kim
Electrocardiogram changes in subarachnoid hemorrhage (SAH) have been described as ST-T changes that mimic acute coronary syndrome and even acute ST-segment elevation myocardial infarction. Elevation of cardiac enzymes and abnormality of regional myocardial wall motion have been reported frequently for SAH. We report a case of an out-of-hospital cardiac arrest survivor with high suspicion of ST-segment elevation myocardial infarction based on the electrocardiogram and bedside echocardiography, who had normal coronary arteries on emergent coronary angiography...
December 2015: Clin Exp Emerg Med
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