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coronary vessels

Jung Sook Yeom, Young Hye Cho, Chung Mo Koo, Jin Su Jun, Ji Sook Park, Eun Sil Park, Ji-Hyun Seo, Jae-Young Lim, Hyang-Ok Woo, Hee-Shang Youn
Cerebral vasculitis is thought to be a possible underlying mechanism of severe neurological complications of Kawasaki's disease (KD), such as cerebral infarct or aneurysm rupture. To evaluate the intracranial inflammatory response in patients with acute-stage KD, we measured the levels of cytokines (interleukin [IL]-6 and tumor necrosis factor [TNF]-α) and pentraxin-3 (PTX3) in the cerebrospinal fluid of patients with KD ( n  = 7) and compared the levels to those of the age- and sex-matched febrile control patients (bacterial meningitis [ n  = 5], enteroviral meningitis [ n  = 10], nonspecific viral illness without central nervous system involvement [ n  = 10])...
June 18, 2018: Neuropediatrics
Usman Riaz, Leela Rakesh, Ishraq Shabib, Waseem Haider
The issue of long-term incompatible interactions associated with the permanent implants can be eliminated by using various biodegradable metal implants. The recent research is focusing on the use of degradable stents to restore most of the hindrances of capillaries, and coronary arteries by supplying instant blood flow with constant mechanical and structural support. However, internal endothelialization and infection due to the corrosion of implanted stents are not easy to diagnose in the long run. In the recent past, magnesium (Mg) has been widely investigated for the cardiovascular stent applications...
June 5, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Ravi Kiran Munnur, James D Cameron, Liam M McCormick, Peter J Psaltis, Nitesh Nerlekar, Brian S H Ko, Ian T Meredith, Sujith Seneviratne, Dennis T L Wong
BACKGROUND: Visual assessment of diameter-stenosis on Computed Tomography Coronary Angiography (CTCA) lacks specificity to determine functional significance of coronary artery stenosis. Percent-aggregate plaque volume (%APV) and ASLA score, which incorporates Area of Stenosis, Lesion length, and area of myocardium subtended estimated by APPROACH score (Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease) have been described to predict lesion specific ischaemia in focal lesions with intermediate stenosis...
June 8, 2018: International Journal of Cardiology
Abdullah Orhan Demirtas, Turgut Karabag, Derya Demirtas
Background: In this study, whether ischemia modified albumin (IMA) has a role in showing severity or criticality of coronary arteries in patients with unstable angina pectoris (USAP)/non-ST-elevation myocardial infarction (NSTEMI) was assessed. Methods: A total of 65 patients (40 male (M) and 25 female (F) patients; mean age 59.7 ± 12.1 years) with the initial diagnosis of USAP/NSTEMI were included in this study. The levels of IMA, troponin T, creatine kinase MB (CK-MB), C-reactive protein (CRP), brain natriuretic peptide (BNP), creatinine, lipid panel, and whole blood count were measured from venous blood obtained from each patient within 3 h after the onset of symptoms...
July 2018: Journal of Clinical Medicine Research
Yunlong Huo, Ghassan S Kassab
A pulsatile hemodynamic analysis was carried out in the right coronary arterial (RCA) tree of control and RV hypertrophy (RVH) hearts. The shape of flow and wall shear stress (WSS) waves was hypothesized to be maintained throughout the RCA tree in RVH (i.e., similar patterns of normalized flow and WSS waves in vessels of various sizes). Consequently, we reconstructed the entire RCA tree down to the first capillary bifurcation of control and RVH hearts based on measured morphometric data. A Womersley-type model was used to compute the flow and WSS waves in the tree...
2018: Frontiers in Physiology
Mingzhu Xu, Lihua Yan, Jialiang Xu, Xiangjun Yang, Tingbo Jiang
Patients with acute myocardial infarction (AMI) complicated by heart failure with preserved ejection fraction (HFpEF) are likely to have more adverse cardiovascular events and higher mortality. The purpose of this study was to examine the predictors and outcomes in AMI patients complicated by HFpEF.We examined the demographics, clinical data, and clinical outcomes in 405 consecutive subjects who firstly presented with AMI after undergoing emergency percutaneous coronary intervention from January 2013 to June 2016...
June 2018: Medicine (Baltimore)
Hao Liang, Lan Wu, Yingchen Li, Yidi Zeng, Zhixi Hu, Xinchun Li, Xiang Sun, Qiuyan Zhang, Xiaoqing Zhou
BACKGROUND: Prior studies have proposed several electrocardiogram (ECG) criteria in limb leads for identifying the culprit coronary artery (CCA) in patients with acute inferior wall myocardial infarction (IWMI). The aim of our study was to conduct an evidence-based evaluation and test accuracy comparison of these criteria. METHODS: We searched the PubMed, Embase, and Ovid. Eligible studies to assess the diagnostic performance of ECG criteria predicting CCA in IWMI were reviewed for inclusion...
June 2018: Medicine (Baltimore)
Raisuke Iijima, Norihiro Kougame, Hidehiko Hara, Masao Moroi, Masato Nakamura
BACKGROUND: The aim of this study was to investigate whether drug-coated balloon (DCB) treatment is effective for de novo coronary lesions that are unsuitable for drug-eluting stent (DES) implantation.Methods and Results:This retrospective study included 118 de novo lesions that were not suitable for DES implantation. Of the lesions, 40% was treated because of very small vessel disease. Patients with planned non-cardiac surgery and at high bleeding risk were 3% and 19%, respectively, and lesions that easily develop stent fracture comprised 26%...
June 12, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
Kenji Sakamoto, Suguru Nagamatsu, Eiichiro Yamamoto, Koichi Kaikita, Kenichi Tsujita
In the past decades, coronary imaging has evolved as a valuable adjunct to angiography, providing scientific insights into vascular biology and practical guidance by direct visualization of atherosclerosis and other pathologic conditions within the vessel walls. Especially with intravascular ultrasound (IVUS), the signal is able to penetrate below the luminal surface, so the entire cross-section of an artery, including the complete thickness of the plaque, can be imaged in real-time. On the other hand, optical coherence tomography (OCT) has been offering higher image resolution of both the plaque and the luminal surface...
June 13, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
Orlando M Gutiérrez, Marguerite R Irvin, Ninad S Chaudhary, Mary Cushman, Neil A Zakai, Victor A David, Sophie Limou, Nathalie Pamir, Alex P Reiner, Rakhi P Naik, Michele M Sale, Monika M Safford, Hyacinth I Hyacinth, Suzanne E Judd, Jeffrey B Kopp, Cheryl A Winkler
BACKGROUND: APOL1 renal risk variants are strongly associated with chronic kidney disease in Black adults, but reported associations with cardiovascular disease (CVD) have been conflicting. METHODS: We examined associations of APOL1 with incident coronary heart disease (n=323), ischemic stroke (n=331), and the composite CVD outcome (n=500) in 10 605 Black participants of the REGARDS study (Reasons for Geographic and Racial Differences in Stroke). Primary analyses compared individuals with APOL1 high-risk genotypes to APOL1 low-risk genotypes in Cox proportional hazards models adjusted for CVD risk factors and African ancestry...
June 2018: Circulation. Genomic and precision medicine
Yue Wang, Gary S Mintz, Zhichun Gu, Yue Qi, Yue Wang, Mengru Liu, Xiaofan Wu
BACKGROUND: Although several meta-analyses have demonstrated the utility of intravascular ultrasound (IVUS) in guiding drug-eluting stent (DES) implantation compared to angiography-guidance, there has been a dearth of evidence in the left main coronary artery (LMCA) lesion subset. METHODS: We performed a meta-analysis to compare clinical outcomes of IVUS versus conventional angiography guidance during implantation of DES for patients with LMCA disease. Pubmed, Cochrane Library, Embase were searched...
June 14, 2018: BMC Cardiovascular Disorders
Jay Ramchand, Sheila K Patel, Piyush M Srivastava, Omar Farouque, Louise M Burrell
BACKGROUND: Angiotensin converting enzyme 2 (ACE2) is an endogenous regulator of the renin angiotensin system. Increased circulating ACE2 predicts adverse outcomes in patients with heart failure (HF), but it is unknown if elevated plasma ACE2 activity predicts major adverse cardiovascular events (MACE) in patients with obstructive coronary artery disease (CAD). METHODS: We prospectively recruited patients with obstructive CAD (defined as ≥50% stenosis of the left main coronary artery and/or ≥70% stenosis in ≥ 1 other major epicardial vessel on invasive coronary angiography) and measured plasma ACE2 activity...
2018: PloS One
Cai-Yun Ma, Zhen-Ye Xu, Shao-Ping Wang, Hong-Yu Peng, Fang Liu, Jing-Hua Liu, Feng-Xue Ren
Background: Acute coronary syndrome (ACS) is closely related to unstable plaques and secondary thrombosis. The inflammatory cells in plaques and their inflammatory products may be the cause for plaque instability and ruptures. The study aimed to disclose the changes of inflammatory factors including serum intracellular adhesion molecule-1 (ICAM-1), chitinase-3-like protein 1 (YKL-40), and lipoprotein-associated phospholipase A2 (Lp-PLA2) in patients with ACS and its clinical significance...
June 20, 2018: Chinese Medical Journal
Yuan-Liang Ma, Xiao-Fang Tang, Yi Yao, Na Xu, Ying Song, Ping Jiang, Jing-Jing Xu, Huan-Huan Wang, Lin Jiang, Ru Liu, Xue-Yan Zhao, Jue Chen, Zhan Gao, Shu-Bin Qiao, Yue-Jin Yang, Run-Lin Gao, Bo Xu, Jin-Qing Yuan
Background: It remains undetermined whether second-generation drug-eluting stents (G2-DESs) outperform first-generation DESs (G1-DESs) in patients with acute coronary syndrome (ACS). We aimed to compare the efficacy and safety of G1-DES and G2-DES in ACS patients in a high-volume cardiovascular center. Methods: In 2013, 10,724 consecutive patients underwent percutaneous coronary intervention in our institution. We included 4037 patients with ACS who underwent exclusively G1-DES or G2-DES implantation (n = 364 and n = 3673, respectively)...
June 20, 2018: Chinese Medical Journal
C Linti, M Doser, H Planck, S Oberhoffner, E Mueller, M Renardy, J Biesinger, B Neumann, K Stang, T O Greiner, C Schlensak, S Krajewski, H P Wendel
Following percutaneous coronary intervention, vascular closure devices (VCDs) are increasingly used to reduce time to ambulation, enhance patient comfort, and reduce potential complications compared with traditional manual compression. Newer techniques include complicated, more or less automated suture devices, local application of pads or the use of metal clips and staples. These techniques often have the disadvantage of being time consuming, expensive or not efficient enough. The VCD failure rate in association with vascular complications of 2...
June 11, 2018: Journal of Materials Science. Materials in Medicine
Kenji Kawai, Minoru Ichikawa, Tohru Masuyama, Masaharu Ishihara, Yoshiyuki Kijima
Purpose: The purpose of this study is to elucidate the impact of out-stent plaque characteristics on vascular response after implantation of second generation drug-eluting stent (G2-DES). Methods: Enrolled were 37 patients with 39 coronary artery lesions into which three types of G2-DES were successfully implanted (9 Nobori biolimus-, BES; 15 Xience everolimus-, EES; 15 Resolute zotarolimus-eluting stents; R-ZES). Immediately after (baseline) and one year after the implantation (follow-up), iMAP-intravascular ultrasound (IVUS) was performed to measure out-stent plaque volume (OSPV) and its components...
June 2018: IJC Heart & Vasculature
Guidong Shen, Hongmin Zhu, Hong Ding, Chaoyang Sun, Kun Zhou, Yan Fan, Tao Li, Min Men, Yuewu Chen, Qun Lu, Aiqun Ma
BACKGROUND: The study aimed to evaluate the prognostic value of cystatin C in ST-elevation acute myocardial infarction (STEMI) patients who underwent elective percutaneous coronary intervention (PCI). METHODS: A retrospective study was conducted on 664 STEMI patients from 7 centers who were treated with elective PCI. These patients were divided into 3 groups according their admission cystatin C levels as < 0.84, 0.84-1.03 and ≥1.04mg/L. The all-cause mortalities and the composite endpoints, including mortality, reinfarction, rehospitalization for heart failure and angina or repeat target vessel revascularization were observed for up to 5 years...
June 2018: American Journal of the Medical Sciences
Amir F Mohani, Srikanth Penumetsa, Amin Daoulah, Gregory Giugliano, Amir Lotfi
Aim: This study sought to compare short- and long-term outcomes of drug-eluting stents (DESs) versus bare-metal stents (BMSs) implantation in patients with end-stage renal disease on hemodialysis (ESRD-HD) undergoing percutaneous coronary intervention (PCI). Methods: Adult patients with ESRD-HD who underwent PCI at all nonfederal hospitals in Massachusetts between July 1, 2003, and September 30, 2007, were stratified based on the stent type placed at index hospitalization: DES or BMS...
2018: Cardiology Research and Practice
Gang Li, Rui Hu, Yifang Guo, Lili He, Qingjuan Zuo, Yan Wang
AIMS: ST-segment elevation myocardial infarction (STEMI) is an acute inflammatory and thrombotic disease due to coronary artery atherosclerotic lesions. Studies have established the correlation of serum sulfatides with inflammation, thrombogenesis, and atherosclerosis. We observed that serum sulfatides level significantly increased in STEMI patients. In this study, we try to identify the relationship of serum sulfatides level on clinical outcomes of patients in STEMI. METHODS: Serum sulfatides level was monitored in 370 inpatients within 24 h of STEMI onset...
June 9, 2018: Journal of Atherosclerosis and Thrombosis
Giuseppe Tarantini, Giulia Masiero, Luca Nai Fovino, Marco Mojoli, Attilio Varricchio, Bruno Loi, Roberto Gistri, Leonardo Misuraca, Gabriele Gabrielli, Bernardo Cortese, Francesco Pisano, Luciano Moretti, Gabriele Tumminello, Zoran Olivari, Pietro Mazzarotto, Alessandro Colombo, Paolo Calabrò, Annamaria Nicolino, Paola Tellaroli, Donatella Corrado, Alessandro Durante, Giuseppe Steffenino
OBJECTIVES: The objective of this study was to investigate mid-term clinical outcomes of patients treated with 'full-plastic jacket' (FPJ) everolimus-eluting Absorb bioresorbable vascular scaffold (BRS) implantation. BACKGROUND: FPJ with BRS may represent an interesting option for patient with diffuse coronary artery disease (CAD), but data on the clinical impact of FPJ using the Absorb BRS are scant. METHODS: FPJ was defined as the implantation of >56 mm of overlapping BRS in at least one vessel...
September 1, 2018: International Journal of Cardiology
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