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https://www.readbyqxmd.com/read/27931763/usefulness-of-synthesized-18-lead-electrocardiography-in-the-diagnosis-of-st-elevation-myocardial-infarction-a-pilot-study
#1
Tadashi Ashida, Shigemasa Tani, Ken Nagao, Tsukasa Yagi, Naoya Matsumoto, Atsushi Hirayama
OBJECTIVE: This was a pilot retrospective case-series study performed to investigate whether synthesized 18-lead electrocardiogram (ECG) could improve the accuracy of infarction site diagnosis in patients presenting with ST-elevation myocardial infarction (STEMI). METHOD: Of 103 consecutive patients with acute coronary syndrome who underwent emergency coronary angiography between October 1, 2014 and December 10, 2015, 33 patients fulfilling the diagnostic criteria for STEMI were enrolled in this study...
November 25, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27931545/assessment-of-validity-of-the-culprit-score-for-predicting-the-culprit-lesion-in-patients-with-acute-inferior-wall-myocardial-infarction
#2
Abhisekh Mohanty, R K Saran
INTRODUCTION: Many electrocardiographic criteria have been developed to determine the infarct-related artery in acute inferior wall myocardial infarction. The aim of this study was to test the commonly used criteria and devise a simplified score to further improve the diagnostic accuracy. MATERIALS AND METHODS: From 2011 to 2013, 100 patients with acute inferior wall myocardial infarction were recruited for electrocardiographic and angiographic analyses. RESULTS: The mean age of the patients was 65±12 years with 74% of patients being male...
November 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27926615/coronary-artery-evaluation-by-screening-echocardiogram-in-intercollegiate-athletes
#3
Walter J Hoyt, Peter N Dean, Daniel S Schneider, Mark R Conaway, Christopher M Kramer, Robert W Battle
INTRODUCTION: Coronary artery anomalies are the second most common congenital cause of sudden cardiac death (SCD) in young athletes. Some centers have advocated for limited transthoracic echocardiogram (TTE) protocols in the screening of college athletes, which may miss important causes of SCD. PURPOSE: The purpose of this study is to evaluate the ability of screening TTE to determine origin and proximal course of the coronary arteries in intercollegiate athletes...
December 6, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27915180/self-primed-isothermal-amplification-for-genomic-dna-detection-of-human-papillomavirus
#4
Wei Lu, Qingpan Yuan, Zhiliu Yang, Bo Yao
Rolling circle amplification (RCA) is an isothermal amplification technique with high efficiency and perfect accuracy for nucleic acids detection. However, RCA technique suffers the limitation to detect short DNA or RNA molecules. For long nucleic acid molecules, enzymatic restriction as well as heat denaturation process is usually required, which makes the amplification not effective and strictly isothermal. In this article, a simple and efficient one-pot self-primed isothermal amplification (SIA) was developed for detection of genomic DNA directly based on the combination of nicking endonuclease assisted strand displacement amplification (SDA) and exponential RCA...
October 10, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27911492/rolling-circle-amplification-with-chemically-modified-nucleoside-triphosphates
#5
Marcel Hollenstein, Masad J Damha
Modified nucleoside triphosphates (dN*TPs) represent facile and versatile precursors for the introduction of chemical diversity into nucleic acids. While dN*TPs have been utilized in a plethora of practical applications, very little attention has been devoted to the assessment of their compatibility with isothermal amplification strategies. In this context, rolling circle amplification (RCA) is a wide-spread enzymatic replication method in which small single-stranded DNA (ssDNA) circles serve as templates in primer extension reactions yielding very long, ssDNA products...
December 1, 2016: Current Protocols in Nucleic Acid Chemistry
https://www.readbyqxmd.com/read/27910574/the-development-of-an-improved-streak-tube-for-fusion-diagnostics
#6
J R Howorth, J S Milnes, Y Fisher, A Jadwin, R Boni, P A Jaanimagi
The fusion diagnostic community, including the National Ignition Facility, the Laboratory for Laser Energetics, Megajoule in France, and others require optical recording instruments with precise time resolution covering a dynamic range of many orders of magnitude. In 2012, LLE, Photek, and Sydor Instruments embarked on the re-design of an improved streak tube for fusion diagnostics. As a baseline we started with the Photek ST-Y streak tube which is a member of the RCA design dating back to 1957, because the tube body can accommodate a 35 mm long photocathode, and consequently more fibre coupled diagnostic channels than smaller designs...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910134/effectiveness-of-handmade-jacky-like-catheter-as-a-single-multipurpose-catheter-in-transradial-coronary-angiography-a-randomized-comparison-with-conventional-two-catheter-strategy
#7
Ismail Erden, Ebru Golcuk, Serdar Bozyel, Emine Cakcak Erden, Yakup Balaban, Kivanc Yalın, Burak Turan
OBJECTIVE: To investigate safety and efficacy of specialized hand-modified "Jacky-Like" catheter (JLC) as a single dual-purpose catheter in transradial coronary angiography. METHODS: Patients over 18 years undergoing diagnostic CAG through right radial artery (RRA) were prospectively enrolled. Procedures were performed with a single JLC modified from a left Judkins (JL) 3.5 catheter or by using 2-catheter approach (2C). Procedures with coronary artery bypass grafts or ventricular angiographies were excluded from the study...
December 2, 2016: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/27903575/early-severe-coronary-artery-disease-and-aortic-coarctation-in-a-child-with-familial-hypercholesterolaemia
#8
Dina Labib, Haytham Soliman, Kareem Said, Khaled Sorour
An 11-year-old boy presented with easy fatigability, multiple xanthomas, and absent pedal pulsations. Laboratory workup showed severe hypercholesterolaemia and non-invasive imaging revealed 'normally functioning' bicuspid aortic valve and tight aortic coarctation. Coronary angiography showed severe right coronary artery (RCA) stenosis. Medical treatment resulted in significant improvement of dyslipidaemia. We successfully performed balloon dilation and stenting of his coarctation, as well as percutaneous coronary intervention for RCA lesion...
November 30, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27901553/a-prediction-and-simulation-model-for-target-oriented-regional-citrate-calcium-anticoagulation-in-extracorporeal-blood-purification
#9
Martin Brandl, Karlheinz Kellner
AIMS: Regional citrate-calcium anticoagulation is becoming more and more attractive for extracorporeal treatments in the clinical routine. METHODS: A prediction and simulation tool for the safe application of RCA during extracorporeal treatments was introduced. The model predicts the course of the ionized calcium level in the patient and the current anticoagulation status in the extracorporeal circuit based on the actual settings of the dialysis machine. RESULTS: The simulation tool delivers areas in which the blood and dialysate flow can be adjusted to reach the desired target values for RCA and predicts the time course of several parameters during treatment...
November 29, 2016: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/27896264/improving-fidelity-of-translation-of-the-stepping-on-falls-prevention-program-through-root-cause-analysis
#10
Jane E Mahoney, Vicki L Gobel, Terry Shea, Jodi Janczewski, Sandy Cech, Lindy Clemson
BACKGROUND: Fidelity monitoring is essential with implementation of complex health interventions, but there is little description of how to use results of fidelity monitoring to improve the draft program package prior to widespread dissemination. Root cause analysis (RCA) provides a systematic approach to identifying underlying causes and devising solutions to prevent errors in complex processes. Its use has not been described in implementation science. METHODS: Stepping On (SO) is a small group, community-based intervention that has been shown to reduce falls by 31%...
2016: Frontiers in Public Health
https://www.readbyqxmd.com/read/27891328/abnormal-course-of-right-coronary-artery-together-with-variant-left-coronary-artery-and-partial-atresia-of-cicumflex-artery
#11
Rajani Singh
Heart is supplied by right and left coronary arteries. Therefore, the knowledge of normal and variant anatomy of both these arteries and their configurations is indispensable for proper understanding of diagnosis and treatment of dreaded cardiac diseases. During routine cadaveric dissection, a heart of an adult female with anomalous course of Right Coronary Artery (RCA), new variant of trifurcated Left Coronary Artery (LCA) and partial atresia of circumflex (CX) artery was detected. Trifurcation of LCA into anterior interventricular, CX and a ramus intermedius without giving accessory branches has been reported...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891151/giant-coronary-artery-aneurysm-causing-acute-anterior-myocardial-infarction
#12
Ahmet Yanık, Uğur Arslan, Murat Akçay, Serdar Menekşe, Uğur Gökmen Yazgan
A 70-year-old man with hypertension was admitted to our coronary ICU with acute anterior MI. Emergent primary PCI was planned and coronary angiography was performed. LAD artery was totally occluded in the proximal segment just after a huge 32 × 26 mm sized aneurysm. Emergent CABG operation was performed in 75 minutes because of multivessel disease including the RCA and left circumflex artery. Aneurysm was ligated and coronary bypass was performed using LIMA and saphenous grafts. The postoperative course of the patient was uneventful...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27883258/bivalent-display-of-dicysteine-on-pna-for-homogenous-dna-rna-detection-via-in-situ-fluorescence-labelling
#13
Gemin Fang, Oliver Seitz
Fluorogenic probes that signal the presence of specific DNA or RNA sequences are key enabling tools for molecular disease diagnosis and imaging studies. Usually, at least one fluorophore is attached via covalent bonds to an oligonucleotide probe. However, the additional conjugation step increases costs. Herein we introduce a method that avoids the requirement for the preparation of fluorescence labeled oligonucleotides and provides the opportunity to alter the fluorogenic reporter dye without resynthesis. The method is based on adjacent hybridization of two dicysteine-containing peptide nucleic acid probes to form a bipartite tetracysteine motif which binds profluorescent bisarsenical dyes such as FIAsH, ReAsH or CrAsH...
November 24, 2016: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/27883257/determining-the-binding-affinities-of-prostate-specific-antigen-to-lectins-spr-and-microarray-approaches
#14
Pavel Damborský, Martina Zámorová, Jaroslav Katrlík
Prostate cancer (PCa) is one of the most common newly diagnosed cancer among men and we focused on its traditional biomarker, prostate-specific antigen (PSA), using targeted glycomics-based strategies. The aberrant glycosylation pattern of PSA may serve as valuable tool for improving PCa diagnosis including its early-stage. In the present work we evaluated the usability of two techniques, surface plasmon resonance and protein microarray assay, for the study and characterization of interactions of PSA (both free and complexed) with 6 lectins (SNA, ConA, RCA, AAL, WGA and MAA II)...
November 24, 2016: Proteomics
https://www.readbyqxmd.com/read/27873006/feasibility-of-omitting-provocation-test-with-50%C3%A2-%C3%AE-g-of-acetylcholine-in-left-coronary-artery
#15
Yuichi Saito, Hideki Kitahara, Toshihiro Shoji, Satoshi Tokimasa, Takashi Nakayama, Kazumasa Sugimoto, Yoshihide Fujimoto, Yoshio Kobayashi
According to the Japanese Circulation Society guideline of vasospastic angina, incremental doses of acetylcholine (ACh) are prescribed for coronary spasm provocation: 20 and 50 μg for the right coronary artery (RCA), and 20, 50 and 100 μg for the left coronary artery (LCA). However, provocation by low doses of ACh in patients with low vasoreactivity may be less needed, and the requirement of 50 μg of ACh for the LCA in these patients has not been evaluated. In the present study, patients who underwent ACh provocation test for both the RCA and LCA were included...
November 21, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27872295/characterization-of-the-heterooligomeric-red-type-rubisco-activase-from-red-algae
#16
Nitin Loganathan, Yi-Chin Candace Tsai, Oliver Mueller-Cajar
The photosynthetic CO2-fixing enzyme ribulose 1,5-bisphosphate carboxylase/oxygenase (rubisco) is inhibited by nonproductive binding of its substrate ribulose-1,5-bisphosphate (RuBP) and other sugar phosphates. Reactivation requires ATP-hydrolysis-powered remodeling of the inhibited complexes by diverse molecular chaperones known as rubisco activases (Rcas). Eukaryotic phytoplankton of the red plastid lineage contain so-called red-type rubiscos, some of which have been shown to possess superior kinetic properties to green-type rubiscos found in higher plants...
December 6, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27871604/enzyme-spheres-as-novel-tracing-tags-coupled-with-target-induced-dnazyme-assembly-for-ultrasensitive-electrochemical-microrna-assay
#17
Yongmei Wu, Kai Sheng, Yongqin Liu, Qian Yu, Baoxian Ye
In this work, an ultrasensitive electrochemical microRNA detection strategy was developed based on porous palladium-modified horseradish peroxidase sphere (Pd@HRP) and target-induced assembly of DNAzyme. A highly loaded HRP sphere was prepared by covalent layer-by-layer assembly with CaCO3 as sacrificial template for the first time, and was further modified with porous Pd. Notably, Pd@HRP composite showed a good redox activity of HRP and electrocatalytic activity toward H2O2. The utilization of Pd@HRP as electrochemical signal indicator and enhancer to fabricate biosensor could avoid the need for additional redox mediator and amplify the detection sensitivity...
December 15, 2016: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27869177/repressor-logic-modules-assembled-by-rolling-circle-amplification-platform-to-construct-a-set-of-logic-gates
#18
Hua Wei, Bo Hu, Suming Tang, Guojie Zhao, Yifu Guan
Small molecule metabolites and their allosterically regulated repressors play an important role in many gene expression and metabolic disorder processes. These natural sensors, though valuable as good logic switches, have rarely been employed without transcription machinery in cells. Here, two pairs of repressors, which function in opposite ways, were cloned, purified and used to control DNA replication in rolling circle amplification (RCA) in vitro. By using metabolites and repressors as inputs, RCA signals as outputs, four basic logic modules were constructed successfully...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27866849/inter-observer-variation-in-delineating-the-coronary-arteries-as-organs-at-risk
#19
Anna-Karin Wennstig, Hans Garmo, Per Hållström, Petra Witt Nyström, Per Edlund, Carl Blomqvist, Malin Sund, Greger Nilsson
PURPOSE: To determine the inter-observer variation in delineating the coronary arteries as organs at risk (OAR) in breast cancer (BC) radiotherapy (RT) and how this variation affects the estimated coronary artery radiation dose. METHOD: Delineation of the left main and the left anterior descending coronary artery (LMCA and LAD), and the right coronary artery (RCA), by using the heart atlas by Feng et al., was performed by three radiation oncologists in 32 women who had received adjuvant RT for BC...
November 17, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27866200/implementation-of-a-simplified-regional-citrate-anticoagulation-protocol-for-post-dilution-continuous-hemofiltration-using-a-bicarbonate-buffered-calcium-containing-replacement-solution
#20
Christopher J Kirwan, Ross Hutchison, Sherif Ghabina, Stephanie Schwarze, Abigail Beane, Susan Ramsay, Edward Thompson, John R Prowle
BACKGROUND/AIMS: Recent updates to the Nikkiso Aquarius continuous renal replacement therapy (CRRT) platform allowed us to develop a post-dilution protocol for regional citrate anticoagulation (RCA) using standard bicarbonate buffered, calcium containing replacement solution with acid citrate dextrose formula-A as a citrate source. Our objective was to demonstrate that the protocol was safe and effective. METHODS: Prospective audit of consecutive patients receiving RCA for CRRT within intensive care unit, who were either contraindicated to heparin or had poor filter lifespan (<12 h for 2 consecutive filters) on heparin...
2016: Blood Purification
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