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Cardiac prevention

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https://www.readbyqxmd.com/read/28544600/effect-of-magnesium-on-arrhythmia-incidence-in-patients-undergoing-coronary-artery-bypass-grafting
#1
Alireza Mohammadzadeh, Farshad Towfighi, Naser Jafari
BACKGROUND: Cardiac arrhythmia after coronary artery bypass grafting (CABG) surgery is a common complication of cardiac surgery. The effect of serum magnesium, hypomagnesaemia treatment and prophylactic administration of magnesium in the development and prevention of arrhythmias is controversial and there are many different ideas. This study evaluates the therapeutic effects of magnesium in cardiac arrhythmia after CABG surgery. METHODS: The clinical trial enrolled 250 patients who underwent CABG...
May 22, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28544034/knock-down-of-farnesyl-pyrophosphate-synthase-protects-heart-derived-h9c2-cells-against-hypoxia-reoxygenation-induced-injury
#2
Dong-Pu Dai, Huan-Dong Wu, Jian Yang, Shi-Zhen Shen, Chen-Ze Zhao, Jie Ding, Shen-Jiang Hu
Farnesyl pyrophosphate synthase (FPPS) is a key enzyme in the mevalonate pathway. Our previous studies have indicated that cardiac-specific overexpression of FPPS induces cardiac hypertrophy and dysfunction in mice, and inhibition of FPPS prevents angiotensin (Ang) II-induced hypertrophy in cardiomyocytes. However, the role for FPPS in myocardial ischemia/reperfusion (MIR) injury is still not clear. The objective of this work was to investigate the effect of FPPS on MIR injury in H9c2 cells which were subjected to hypoxia/reoxygenation (HR) to mimic MIR...
May 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28543543/cardiac-implantable-electronic-device-haematomas-risk-factors-and-effect-of-prophylactic-pressure-bandaging
#3
Youlin Koh, Nicholas E Bingham, Natalie Law, Dustin Le, Justin A Mariani
BACKGROUND: Cardiac implantable electronic device (CIED) haematomas are associated with many adverse outcomes. We examined the incidence and risk factors associated with haematoma formation post CIED implantation, and explored the preventative effect of prophylactic pressure bandaging (PPB) in a large tertiary centre. METHODS: 1091 devices were implanted during October 2011 to December 2014. Clinically significant haematomas (CSH) were those that necessitated prolonged admission, including those due to reoperation, and clinically suspicious haematomas were swellings noted by medical/nursing staff...
May 23, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28543396/functional-and-structural-assessment-of-the-effect-of-human-umbilical-cord-blood-mesenchymal-stem-cells-in-doxorubicin-induced-cardiotoxicity
#4
Somia H Abd Allah, Samia Hussein, Mai M Hasan, Raghda H A Deraz, Wafaa F Hussein, Laila M E Sabik
Cardiomyopathy induced by doxorubicin (DOX) was recognized at an early stage and also several years after drug administration. Mesenchymal stem cells (MSCs) have many properties that make them suitable for preventive and/ or regenerative therapies. In this study, we evaluated the effect of MSCs in the functional and the structural improvement of DOX-induced cardiomyopathy in rats. Ninety adult male albino rats were randomly divided into three equal groups of thirty rats each: Group I (control): rats received normal saline...
May 25, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28543216/bridging-with-tirofiban-during-oral-antiplatelet-interruption-a-single-center-case-series-analysis-including-patients-on-hemodialysis
#5
Elizabeth A Walker, William E Dager
INTRODUCTION: Surgical patients requiring an interruption in dual-antiplatelet therapy (DAPT) within 6 months of cardiac stenting are at risk for thrombotic events. Bridging with short-acting intravenous antiplatelet agents has been proposed to minimize the risk of thrombotic and hemorrhagic complications. METHODS: This was a retrospective analysis of a tirofiban bridging strategy that did not use an initial bolus loading dose. Tirofiban infusions were initiated 24to 48 hours after the last oral antiplatelet dose at a rate of 0...
May 23, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28543170/specific-activation-of-cd4-cd8-double-negative-t-cells-by-t-cruzi-derived-glycolipids-induces-a-pro-inflammatory-profile-associated-with-cardiomyopathy-in-chagas-patients
#6
Lívia Silva Araújo Passos, Luísa Mourão Dias Magalhães, Rodrigo Pedro Soares, Alexandre F Marques, Maria do Carmo Pereira Nunes, Kenneth J Gollob, Walderez Ornelas Dutra
Cardiomyopathy is the most severe outcome of Chagas disease, causing over 12,000 deaths/year. Immune cells participate in cardiomyopathy development either by direct tissue destruction, or by driving inflammation. We have shown that CD4-CD8- (double negative - DN) T cells are major sources of inflammatory and anti-inflammatory cytokines, associated with the cardiac (CARD) and indeterminate (IND) forms of Chagas disease, respectively. Here, we sought to identify Trypanosoma cruzi derived components that lead to activation of DN T cells in Chagas patients...
May 24, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28543134/-real-life-longevity-of-implantable-cardioverter-defibrillator-devices
#7
Antonis S Manolis, Themistoklis Maounis, Spyridon Koulouris, Vassilios Vassilikos
BACKGROUND: Manufacturers of implantable cardioverter-defibrillators (ICDs) promise a 5- to 9-year projected longevity; however, real-life data indicate otherwise. The aim of the present study was to assess ICD longevity among 685 consecutive patients over the last 20 years. HYPOTHESIS: Real-life longevity of ICDs may differ from that stated by the manufacturers. METHODS: The study included 601 men and 84 women (mean age, 63.1 ± 13.3 years)...
May 22, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28542655/-risk-factors-associated-with-postoperative-acute-renal-failure-in-pediatric-patients-undergoing-cardiopulmonary-bypass-surgery
#8
Elsa Nohemí Reyes-Flandes, Alejandro Herrera-Landero, Pascual Bobadilla-González, Juan Carlos Núñez-Enríquez
Acute renal failure (ARF) is a complication associated with cardiac surgery with cardiopulmonary bypass (CPB) with an impact on morbidity and mortality. OBJECTIVE: To identify risk factors associated with postoperative IRA according to pediatric Risk, Injury, Failure, Loss, End-Stage Renal Disease scale in children undergoing cardiac surgery with CPB. PATIENTS AND METHOD: A nested case-control study was conducted. We included children under 16 years of age attended postoperative for CBP in a pediatric intensive care unit over a period of 18 months...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28542428/age-dependent-electrical-and-morphological-remodeling-of-the-drosophila-heart-caused-by-herg-seizure-mutations
#9
Karen Ocorr, Alexander Zambon, Yoav Nudell, Santiago Pineda, Soda Diop, Min Tang, Takeshi Akasaka, Erika Taylor
Understanding the cellular-molecular substrates of heart disease is key to the development of cardiac specific therapies and to the prevention of off-target effects by non-cardiac targeted drugs. One of the primary targets for therapeutic intervention has been the human ether a go-go (hERG) K+ channel that, together with the KCNQ channel, controls the rate and efficiency of repolarization in human myocardial cells. Neither of these channels plays a major role in adult mouse heart function; however, we show here that the hERG homolog seizure (sei), along with KCNQ, both contribute significantly to adult heart function as they do in humans...
May 19, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28541499/hypertension-and-cardiac-arrhythmias-executive-summary-of-a-consensus-document-from-the-european-heart-rhythm-association-ehra-and-esc-council-on-hypertension-endorsed-by-the-heart-rhythm-society-hrs-asia-pacific-heart-rhythm-society-aphrs-and-sociedad-latinoamericana
#10
Gregory Y H Lip, Antonio Coca, Thomas Kahan, Giuseppe Boriani, Antonis S Manolis, Michael Hecht Olsen, Ali Oto, Tatjana S Potpara, Jan Steffel, Francisco Marín, Márcio Jansen de Oliveira Figueiredo, Giovanni de Simone, Wendy S Tzou, Chern En Chiang, Bryan Williams
Hypertension (HTN) is a common cardiovascular risk factor leading to heart failure (HF), coronary artery disease (CAD), stroke, peripheral artery disease and chronic renal failure. Hypertensive heart disease can manifest as many types of cardiac arrhythmias, most commonly being atrial fibrillation (AF). Both supraventricular and ventricular arrhythmias may occur in HTN patients, especially in those with left ventricular hypertrophy (LVH), CAD or HF. In addition, high doses of thiazide diuretics commonly used to treat hypertension, may result in electrolyte abnormalities (eg...
May 25, 2017: European Heart Journal. Cardiovascular Pharmacotherapy
https://www.readbyqxmd.com/read/28540213/ct-as-gatekeeper-of-invasive-coronary-angiography-in-patients-with-suspected-cad
#11
REVIEW
Carlos A G Van Mieghem
Cardiac CT has been accepted as a valuable diagnostic tool in today's patient care. However, several other noninvasive, in particular, functional diagnostic tests are available on the menu for the ordering clinician and target more or less the same patient population. These tests come with a cost and financial constraints in the present economic environment will no longer allow its indiscriminate use. The gatekeeper function of a diagnostic testing strategy implies that a test is selected judiciously with the aim of preventing access to invasive yet expensive coronary angiography...
April 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28540212/infarct-characterization-using-ct
#12
REVIEW
Ludovico La Grutta, Patrizia Toia, Erica Maffei, Filippo Cademartiri, Roberto Lagalla, Massimo Midiri
Myocardial infarction (MI) is a major cause of death and disability worldwide. The incidence is not expected to diminish, despite better prevention, diagnosis and treatment, because of the ageing population in industrialized countries and unhealthy lifestyles in developing countries. Nowadays it is highly requested an imaging tool able to evaluate MI and viability. Technology improvements determined an expansion of clinical indications from coronary plaque evaluation to functional applications (perfusion, ischemia and viability after MI) integrating additional phases and information in the mainstream examination...
April 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28539353/crf-and-urocortin-3-protect-the-heart-from-hypoxia-reoxygenation-induced-apoptosis-in-zebrafish
#13
Tegan A Williams, Jillian C Bergstrome, Juliana Scott, Nicholas J Bernier
Fish routinely experience environmental hypoxia and have evolved various strategies to tolerate this challenge. Given the key role of the corticotropin-releasing factor (CRF) system in coordinating the response to stressors and its cardioprotective actions against ischemia in mammals, we sought to characterize the cardiac CRF system in zebrafish and its role in hypoxia tolerance. We established that all genes of the CRF system, the ligands CRFa, CRFb, urotensin 1 (UTS1) and urocortin 3 (UCN3), the two receptor subtypes (CRFR1 and CRFR2), and the binding protein (CRFBP) are expressed in the heart of zebrafish: crfr1 > crfr2 = crfbp > crfa > ucn3 > crfb > uts1...
May 24, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28538105/linezolid-induced-lactic-acidosis-the-thin-line-between-bacterial-and-mitochondrial-ribosomes
#14
Alessandro Santini, Dario Ronchi, Manuela Garbellini, Daniela Piga, Alessandro Protti
Introduction - Linezolid inhibits bacterial growth by targeting bacterial ribosomes and by interfering with bacterial protein synthesis. Lactic acidosis is a rare, but potentially lethal, side effect of linezolid. Areas covered - The pathogenesis of linezolid-induced lactic acidosis is reviewed with special emphasis on aspects relevant to the recognition, prevention and treatment of the syndrome. Expert opinion - Linezolid-induced lactic acidosis reflects the untoward interaction between the drug and mitochondrial ribosomes...
May 24, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28537973/identifying-variability-in-mental-models-within-and-between-disciplines-caring-for-the-cardiac-surgical-patient
#15
Evans K H Brown, Kathleen A Harder, Ioanna Apostolidou, Joyce A Wahr, Douglas C Shook, R Saeid Farivar, Tjorvi E Perry, Mojca R Konia
BACKGROUND: The cardiac operating room is a complex environment requiring efficient and effective communication between multiple disciplines. The objectives of this study were to identify and rank critical time points during the perioperative care of cardiac surgical patients, and to assess variability in responses, as a correlate of a shared mental model, regarding the importance of these time points between and within disciplines. METHODS: Using Delphi technique methodology, panelists from 3 institutions were tasked with developing a list of critical time points, which were subsequently assigned to pause point (PP) categories...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28537000/advances-in-clinical-cardiology-2016-a-summary-of-the-key-clinical-trials
#16
REVIEW
Alastair Gray, Conor McQuillan, Ian B A Menown
INTRODUCTION: The findings of many new cardiology clinical trials over the last year have been published or presented at major international meetings. This paper aims to describe and place in context a summary of the key clinical trials in cardiology presented between January and December 2016. METHODS: The authors reviewed clinical trials presented at major cardiology conferences during 2016 including the American College of Cardiology (ACC), European Association for Percutaneous Cardiovascular Interventions (EuroPCR), European Society of Cardiology (ESC), European Association for the Study of Diabetes (EASD), Transcatheter Cardiovascular Therapeutics (TCT), and the American Heart Association (AHA)...
May 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28536949/exercise-and-doxorubicin-treatment-modulate-cardiac-mitochondrial-quality-control-signaling
#17
I Marques-Aleixo, E Santos-Alves, J R Torrella, P J Oliveira, J Magalhães, A Ascensão
The cross-tolerance effect of exercise against heart mitochondrial-mediated quality control, remodeling and death-related mechanisms associated with sub-chronic Doxorubicin (DOX) treatment is yet unknown. We therefore analyzed the effects of two distinct chronic exercise models (endurance treadmill training-TM and voluntary free wheel activity-FW) performed during the course of the sub-chronic DOX treatment on mitochondrial susceptibility to permeability transition pore (mPTP), apoptotic and autophagic signaling and mitochondrial dynamics...
May 23, 2017: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/28536837/controlled-sedation-with-midazolam-and-analgesia-with-nalbuphine-to-alleviate-pain-in-patients-undergoing-subcutaneous-implantable-cardioverter-defibrillator-implantation
#18
Michaël Peyrol, Jérémie Barraud, Jennifer Cautela, Baptiste Maille, Marc Laine, Laurent Bonello, Franck Thuny, Franck Paganelli, Frédéric Franceschi, Linda Koutbi, Samuel Levy
PURPOSE: Subcutaneous implantable cardioverter defibrillator (S-ICD) is an alternative to transvenous ICD to prevent sudden cardiac death. Subcutaneous ICD implantation frequently requires general anesthesia because of procedure nociceptive steps during creation of a large device pocket and lead tunneling. This study aims to determine if a strategy of operator-guided controlled sedation with midazolam and analgesia with nalbuphine is effective in alleviating pain during S-ICD implantation...
May 23, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28536187/question-2-is-levosimendan-better-than-milrinone-in-preventing-post-operative-low-cardiac-output-syndrome-and-improving-cardiac-function-in-children-with-congenital-heart-disease
#19
https://www.readbyqxmd.com/read/28535942/gallic-acid-increases-atrial-natriuretic-peptide-secretion-and-mechanical-dynamics-through-activation-of-pkc
#20
Xia Liu, Ying Zhang, Lan Hong, Chun-Ji Han, Bo Zhang, Shuai Zhou, Cheng-Zhe Wu, Li-Ping Liu, Xun Cui
AIMS: Gallic acid (GA) protects against myocardial ischemia-reperfusion (I/R) injury, prevents cardiac hypertrophy and fibrosis, and has anti-inflammatory activity in the heart. However, its effects in regulating atrial natriuretic peptide (ANP) secretion are unknown. The aim of this study was to determine the function of GA in regulating ANP secretion and atrial dynamics in rat atria. KEY FINDINGS: GA (0.01, 0.05, and 0.1μmol/L) significantly increased atrial ANP secretion and induced positive inotropy dose-dependently...
May 20, 2017: Life Sciences
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