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https://www.readbyqxmd.com/read/28644591/a-heart-for-travel-travel-health-considerations-for-patients-with-heart-disease-and-cardiac-devices
#1
G Flaherty, S De Freitas
Cardiovascular disease is the leading cause of death in adult international travellers. Patients living with heart disease should receive specific, individualised pre-travel health advice. The purpose of this article is to provide evidence-based advice to physicians who are consulted by travellers with cardiovascular disease. Fitness-to-travel evaluation will often be conducted by the general practitioner but other medical specialists may also be consulted for advice. Patients with chronic medical conditions should purchase travel health insurance...
December 12, 2016: Irish Medical Journal
https://www.readbyqxmd.com/read/28644212/worsening-atrioventricular-conduction-after-hospital-discharge-in-patients-with-st-segment-elevation-myocardial-infarction-undergoing-primary-percutaneous-coronary-intervention-the-horizons-ami-trial
#2
Ioanna Kosmidou, Björn Redfors, Thomas McAndrew, Monica Embacher, Roxana Mehran, José M Dizon, Ori Ben-Yehuda, Gary S Mintz, Gregg W Stone
BACKGROUND: The chronic effects of ST-segment elevation myocardial infarction (STEMI) on the atrioventricular conduction (AVC) system have not been elucidated. This study aimed to evaluate the incidence, predictors, and outcomes of worsened AVC post-STEMI in patients treated with a primary percutaneous coronary intervention (PCI). PATIENTS AND METHODS: The current analysis included patients from the HORIZONS-AMI trial who underwent primary PCI and had available ECGs...
June 21, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28642118/current-state-of-the-art-for-cardiac-arrhythmia-gene-therapy
#3
REVIEW
J Kevin Donahue
Cardiac arrhythmias are a leading cause of morbidity and mortality. Currently available therapeutic options lack sufficient efficacy and safety. Gene therapy has been proposed for treatment of cardiac arrhythmias. This review will discuss the current state of development for arrhythmia gene therapy. So far, all published studies are short-term, proof-of-concept animal studies. Potential replacement of cardiac pacemakers has been shown for combination gene therapy using the HCN2 gene and either the gene for adenylate cyclase, the skeletal muscle isoform of the sodium channel, or a dominant negative mutant of the potassium channel responsible for resting membrane potential...
June 19, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28637845/successful-conservative-management-of-a-permanent-pacemaker-pocket-infection-a-less-invasive-approach
#4
Alexander James Keeley, Daniel Hammersley, Madhava Dissanayake
We present a successful conservative management strategy for a frail elderly patient with a cardiac resynchronisation pacemaker who presented with evidence of an Enterobacter cloacae pacemaker pocket infection. A device washout and debridement procedure was performed, with reburial of the device in a new prepectoral pocket and creation of a closed-loop continuous antibiotic infusion into the infected pacemaker pocket. This was followed by a 6-week course of ambulatory intravenous antibiotic therapy. This conservative management strategy avoided the need for a more invasive and high-risk full device extraction, which the patient clearly stated he did not wish to have...
June 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28631632/risk-of-cardiac-pacemaker-pocket-infection-in-a-tertiary-care-hospital
#5
Jaswinder Singh Gill, Navreet Singh, S P Khanna
BACKGROUND: The risk of pacemaker pocket infections (PPIs) is rare with good antisepsis techniques and use of advanced antibiotics. However, injudicious antibiotic usage leads to the rise of multidrug-resistant bacteria, which may cause PPI. Few reports exist about the microbial spectrum of the PPI from our country, prompting us to study the same. METHODS: We conducted this retrospective observational study for 3 years (January 2013-February 2016) from all the patients with PPI...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28625370/rationale-and-design-of-the-apixaban-for-the-reduction-of-thrombo-embolism-in-patients-with-device-detected-sub-clinical-atrial-fibrillation-artesia-trial
#6
Renato D Lopes, Marco Alings, Stuart J Connolly, Heather Beresh, Christopher B Granger, Juan Benezet Mazuecos, Giuseppe Boriani, Jens C Nielsen, David Conen, Stefan H Hohnloser, Georges H Mairesse, Philippe Mabo, A John Camm, Jeffrey S Healey
BACKGROUND: Device-detected subclinical atrial fibrillation (AF) refers to infrequent, short-lasting, asymptomatic AF that is detected only with long-term continuous monitoring. Subclinical AF is common and associated with an increased risk of stroke; however, the risk of stroke with subclinical AF is lower than for clinical AF, and very few patients with subclinical AF alone have been included in large AF anticoagulation trials. The net benefit of anticoagulation in patients with subclinical AF is unknown...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28623610/a-singular-role-of-ik1-promoting-the-development-of-cardiac-automaticity-during-cardiomyocyte-differentiation-by-ik1-induced-activation-of-pacemaker-current
#7
Yu Sun, Valeriy Timofeyev, Adrienne Dennis, Emre Bektik, Xiaoping Wan, Kenneth R Laurita, Isabelle Deschênes, Ronald A Li, Ji-Dong Fu
The inward rectifier potassium current (IK1) is generally thought to suppress cardiac automaticity by hyperpolarizing membrane potential (MP). We recently observed that IK1 could promote the spontaneously-firing automaticity induced by upregulation of pacemaker funny current (If) in adult ventricular cardiomyocytes (CMs). However, the intriguing ability of IK1 to activate If and thereby promote automaticity has not been explored. In this study, we combined mathematical and experimental assays and found that only IK1 and If, at a proper-ratio of densities, were sufficient to generate rhythmic MP-oscillations even in unexcitable cells (i...
June 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28623015/inadvertent-left-ventricular-pacing-and-perforation-by-a-temporary-pacemaker
#8
Jingyang Lin, Lihong Wang, Yan Zhao
Myocardial perforation by pacemaker electrode is a very serious complication. Usually, the pacemaker electrode perforates the right ventricle, but rarely the left ventricular myocardium. We describe an 82-year-old female patient who presented with left ventricular pacing after temporary pacemaker implantation and was diagnosed with myocardial perforation. Emergency thoracotomy showed that the exact position of the cardiac perforation was close to the left ventricular apex. Perforation of the left ventricular free wall by an electrode sometimes progresses slowly...
June 3, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28620573/clinical-characteristics-and-outcomes-of-patients-with-ischemic-and-non-ischemic-complete-heart-block
#9
Murtaza Sundhu, Mehmet Yildiz, Mubbasher Syed, Bhavan Shah, Sajjad Gul, Omer Afzal, Lon Castle
INTRODUCTION: Third degree or complete heart block (CHB) is a medical emergency and usually requires permanent pacemaker placement. CHB can be caused by cardiac ischemia or non-ischemic conditions such as infiltrative diseases or fibrosis. The purpose of this study is to identify the baseline clinical characteristics associated with ischemic versus non-ischemic causes of complete heart block and compare their outcomes. MATERIALS AND METHODS: An institutional review broad approval was granted by the Cleveland Clinic Health System...
May 12, 2017: Curēus
https://www.readbyqxmd.com/read/28613276/genetic-loci-associated-with-heart-rate-variability-and-their-effects-on-cardiac-disease-risk
#10
Ilja M Nolte, M Loretto Munoz, Vinicius Tragante, Azmeraw T Amare, Rick Jansen, Ahmad Vaez, Benedikt von der Heyde, Christy L Avery, Joshua C Bis, Bram Dierckx, Jenny van Dongen, Stephanie M Gogarten, Philippe Goyette, Jussi Hernesniemi, Ville Huikari, Shih-Jen Hwang, Deepali Jaju, Kathleen F Kerr, Alexander Kluttig, Bouwe P Krijthe, Jitender Kumar, Sander W van der Laan, Leo-Pekka Lyytikäinen, Adam X Maihofer, Arpi Minassian, Peter J van der Most, Martina Müller-Nurasyid, Michel Nivard, Erika Salvi, James D Stewart, Julian F Thayer, Niek Verweij, Andrew Wong, Delilah Zabaneh, Mohammad H Zafarmand, Abdel Abdellaoui, Sulayma Albarwani, Christine Albert, Alvaro Alonso, Foram Ashar, Juha Auvinen, Tomas Axelsson, Dewleen G Baker, Paul I W de Bakker, Matteo Barcella, Riad Bayoumi, Rob J Bieringa, Dorret Boomsma, Gabrielle Boucher, Annie R Britton, Ingrid Christophersen, Andrea Dietrich, George B Ehret, Patrick T Ellinor, Markku Eskola, Janine F Felix, John S Floras, Oscar H Franco, Peter Friberg, Maaike G J Gademan, Mark A Geyer, Vilmantas Giedraitis, Catharina A Hartman, Daiane Hemerich, Albert Hofman, Jouke-Jan Hottenga, Heikki Huikuri, Nina Hutri-Kähönen, Xavier Jouven, Juhani Junttila, Markus Juonala, Antti M Kiviniemi, Jan A Kors, Meena Kumari, Tatiana Kuznetsova, Cathy C Laurie, Joop D Lefrandt, Yong Li, Yun Li, Duanping Liao, Marian C Limacher, Henry J Lin, Cecilia M Lindgren, Steven A Lubitz, Anubha Mahajan, Barbara McKnight, Henriette Meyer Zu Schwabedissen, Yuri Milaneschi, Nina Mononen, Andrew P Morris, Mike A Nalls, Gerjan Navis, Melanie Neijts, Kjell Nikus, Kari E North, Daniel T O'Connor, Johan Ormel, Siegfried Perz, Annette Peters, Bruce M Psaty, Olli T Raitakari, Victoria B Risbrough, Moritz F Sinner, David Siscovick, Johannes H Smit, Nicholas L Smith, Elsayed Z Soliman, Nona Sotoodehnia, Jan A Staessen, Phyllis K Stein, Adrienne M Stilp, Katarzyna Stolarz-Skrzypek, Konstantin Strauch, Johan Sundström, Cees A Swenne, Ann-Christine Syvänen, Jean-Claude Tardif, Kent D Taylor, Alexander Teumer, Timothy A Thornton, Lesley E Tinker, André G Uitterlinden, Jessica van Setten, Andreas Voss, Melanie Waldenberger, Kirk C Wilhelmsen, Gonneke Willemsen, Quenna Wong, Zhu-Ming Zhang, Alan B Zonderman, Daniele Cusi, Michele K Evans, Halina K Greiser, Pim van der Harst, Mohammad Hassan, Erik Ingelsson, Marjo-Riitta Järvelin, Stefan Kääb, Mika Kähönen, Mika Kivimaki, Charles Kooperberg, Diana Kuh, Terho Lehtimäki, Lars Lind, Caroline M Nievergelt, Chris J O'Donnell, Albertine J Oldehinkel, Brenda Penninx, Alexander P Reiner, Harriëtte Riese, Arie M van Roon, John D Rioux, Jerome I Rotter, Tamar Sofer, Bruno H Stricker, Henning Tiemeier, Tanja G M Vrijkotte, Folkert W Asselbergs, Bianca J J M Brundel, Susan R Heckbert, Eric A Whitsel, Marcel den Hoed, Harold Snieder, Eco J C de Geus
Reduced cardiac vagal control reflected in low heart rate variability (HRV) is associated with greater risks for cardiac morbidity and mortality. In two-stage meta-analyses of genome-wide association studies for three HRV traits in up to 53,174 individuals of European ancestry, we detect 17 genome-wide significant SNPs in eight loci. HRV SNPs tag non-synonymous SNPs (in NDUFA11 and KIAA1755), expression quantitative trait loci (eQTLs) (influencing GNG11, RGS6 and NEO1), or are located in genes preferentially expressed in the sinoatrial node (GNG11, RGS6 and HCN4)...
June 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28611030/association-between-mutation-size-and-cardiac-involvement-in-myotonic-dystrophy-type-1-an-analysis-of-the-dm1-heart-registry
#11
Caroline Chong-Nguyen, Karim Wahbi, Vincent Algalarrondo, Henri Marc Bécane, Hélène Radvanyi-Hoffman, Pauline Arnaud, Denis Furling, Arnaud Lazarus, Guillaume Bassez, Anthony Béhin, Abdallah Fayssoil, Pascal Laforêt, Tanya Stojkovic, Bruno Eymard, Denis Duboc
BACKGROUND: In myotonic dystrophy type 1, the association between mutation size (CTG expansion) and the severity of cardiac involvement is controversial. METHODS AND RESULTS: We selected 855 patients with myotonic dystrophy type 1 (women, 51%; median age, 37 years), with genetic testing performed at the moment of their initial cardiac evaluation, out of 1014 patients included in the Myotonic Dystrophy Type 1-Heart Registry between January 2000 and December 2015...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28610884/outcomes-for-low-risk-surgical-aortic-valve-replacement-a-benchmark-for-aortic-valve-technology
#12
Lily E Johnston, Emily A Downs, Robert B Hawkins, Mohammed A Quader, Alan M Speir, Jeffrey B Rich, Ravi K Ghanta, Leora T Yarboro, Gorav Ailawadi
BACKGROUND: Two large, randomized trials are underway evaluating transcatheter aortic valve replacement (AVR) against conventional surgical AVR. We analyzed contemporary, real-world outcomes of surgical AVR in low-risk patients to provide a practical benchmark of outcomes and cost for evaluating current and future transapical AVR technology. METHODS: From 2010 to 2015, 2,505 isolated AVR operations were performed for severe aortic stenosis at 18 statewide cardiac institutions...
June 11, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28605469/surgical-ablation-for-persistent-atrial-fibrillation-in-concomitant-cardiac-surgery-mid-long-term-result%C3%A2
#13
Wenda Gu, Huiming Guo, Cong Lu, Huanlei Huang, Jing Liu, Jian Liu, Bin Xie, Ruobin Wu, Jimei Chen, Jian Zhuang
OBJECTIVES: Surgical ablation is an option for patients with atrial fibrillation (AF) undergoing concomitant cardiac surgery. This study aims to evaluate the outcome of surgical ablation during concomitant cardiac surgery and to identify the independent predictors for a primary end-point consisting of AF or atrial flutter (AFL) recurrence, death, permanent pacemaker implantation and necessity for anti-arrhythmic drugs and the effects of reintervention for AF/AFL recurrence. METHODS: A retrospective analysis was performed for 1028 patients who underwent surgical ablation during concomitant cardiac surgery from October 2004 to April 2015...
June 12, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28603001/low-lateral-thoracic-site-for-cardiac-implantable-electronic-device-implantation-a-viable-alternative-in-patients-with-limited-access-options-after-infected-device-extraction
#14
Jackson J Liang, Robert D Schaller, Danesh S Modi, Andres Enriquez, Gregory E Supple, Joshua M Cooper
BACKGROUND: Device reimplantation after extraction due to cardiac implantable electronic device (CIED) infection in pacemaker-dependent patients can be challenging in patients with limited access options. OBJECTIVE: We describe a straight-forward, low lateral thoracic implantation technique for patients with a patent axillary vein but unavailable bilateral pectoral sites. METHODS: We included 9 pacemaker-dependent patients (mean age 70±13, 7 male) who underwent CIED extraction and low lateral thoracic reimplant, in whom bilateral pectoral sites were unavailable...
June 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28597740/pocket-haematoma-after-cardiac-electronic-device-implantation-in-patients-receiving-antiplatelet-and-anticoagulant-treatment-a-single-centre-experience
#15
Gültekin Gunhan Demir, Gamze Babur Guler, Ekrem Guler, HacıMurat Güneş, Filiz Kizilirmak, İbrahim Oğuz Karaca, Mehmet Onur Omaygenç, Beytullah Çakal, Erkam Olgun, Umeyr Savur, Ersın Ibisoglu, Irfan Barutçu, Fethi Kiliçaslan
Objective In modern cardiology practice, implantation of cardiac electronic devices in patients taking anticoagulant or antiplatelet therapy is a common clinical scenario. Bleeding complications are of particular concern in this patient population and pocket haematoma is one of the most frequent complications. We sought to determine the relationship between periprocedural antiplatelet/anticoagulant therapy and pocket haematoma formation in patients undergoing cardiac implantable electronic device (CIED) implantation...
February 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28595994/-news-techniques-of-pacing-in-congenital-heart-diseases
#16
Mathieu Le Bloa, Jean-Benoît Thambo
The number of children and adult with congenital heart disease requiring implantation of cardiac pacemaker or cardioverter defibrillator is constantly increasing. The lead between stimulation/defibrillation site and the generator constitutes the main weakpoint of those devices despite the numerous recent technological advances: use of bipolar probes, corticoid elution electrodes, insulation improvement, magnetic resonance imaging (MRI) compatibility. Risk of device failure remains high in this population. Long term adverse events with endovascular devices remain high...
June 5, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28593660/inhibition-of-left-ventricular-stimulation-due-to-left-ventricular-lead-failure-and-the-left-ventricular-t-wave-protection-algorithm-in-patient-with-cardiac-resynchronization-therapy-and-pacemaker-dependency
#17
Andrzej Ząbek, Barbara Małecka, Maciej Dębski, Krzysztof Boczar, Jacek Lelakowski
The electrocardiogram (ECG) interpretation in patients with cardiac resynchronization therapy (CRT) is often a perplexing problem. The difficulty in the device evaluation increases in the presence of unfamiliar timing cycles and a lead dysfunction. Authors describe a special function of a Biotronik CRT devices called the left ventricle T-wave protection (LVTP), and demonstrate its behavior in a patient with left ventricular (LV) lead failure. This report shows that sometimes it might be difficult to understand the loss of resynchronization in 12-lead ECG when LVTP feature is on, and a malfunction of left ventricular lead sensing occurs...
June 8, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28593499/in-utero-exposure-to-nicotine-alters-the-development-of-the-rabbit-cardiac-conduction-system-and-provides-a-potential-mechanism-for-sudden-infant-death-syndrome
#18
Anh Tuan Ton, Michael Biet, Jean-Francois Delabre, Nathalie Morin, Robert Dumaine
In-utero exposure to tobacco smoke remains the highest risk factor for sudden infant death syndrome (SIDS). To alleviate the risks, nicotine replacement therapies are often prescribed to women who wish to quit smoking during their pregnancy. Cardiac arrhythmias is considered the final outcome leading to sudden death. Our goal in this study was to determine if exposing rabbit fetus to nicotine altered the cardiac conduction system of newborn kittens in a manner susceptible to cause SIDS. Using neuronal markers and a series of immunohistological and electrophysiological techniques we found that nicotine delayed the development of the cardiac pacemaker center (sinoatrial node) and decreased its innervation...
June 7, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28592789/are-sutureless-aortic-valves-suitable-for-severe-high-risk-patients-suffering-from-active-infective-aortic-valve-endocarditis
#19
Alexander Weymann, Johanna Konertz, Michael Laule, Karl Stangl, Pascal M Dohmen
BACKGROUND Sutureless aortic valves were introduced to facilitate minimally invasive aortic valve surgery. Since sutureless aortic valves are a feasible procedure, we evaluated if any benefits could be identified in severe high-risk patients with active infective endocarditis of the aortic valve. MATERIAL AND METHODS Between April 2014 and April 2015, a total of 42 patients received a sutureless Perceval® aortic valve (Sorin Biomedica Cardio Srl, Saluggia, Italy) for different indications. Nine of these patients (median age 71 years, range 47-83 years) suffered from active infective endocarditis, including four patients with prosthetic aortic valve endocarditis...
June 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28587353/clinical-analysis-of-the-effect-of-anti-allergy-treatment-on-pocket-related-complications-following-pacemaker-implantation
#20
Yang Bai, Jialin Duan, Lin Wang, Rong Bai, Li Lin
A total number of 339 patients who received a pacemaker implantation between June 2012 and June 2014 at Tongji Hospital of Tongji Medical College (Wuhan, China) were investigated in the present study. The aims of the present study were to explore the risk factors of pocket hematoma following pacemaker implantation, and to analyze the effect of anti-allergy treatment on pocket-related complications following pacemaker implantation. Predictors of hematoma occurrence were determined and analyzed via a Chi-square test...
June 2017: Experimental and Therapeutic Medicine
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