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Cardiac rhythm devices

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https://www.readbyqxmd.com/read/29146417/association-between-percutaneous-hemodynamic-support-device-and-survival-from-cardiac-arrest-in-the-state-of-michigan
#1
Andrew Pressman, Kelly N Sawyer, William Devlin, Robert Swor
INTRODUCTION: The role of circulatory support in the post-cardiac arrest period remains controversial. Our objective was to investigate the association between treatment with a percutaneous hemodynamic support device and outcome after admission for cardiac arrest. METHODS: We performed a retrospective study of adult patients with admission diagnosis of cardiac arrest or ventricular fibrillation (VF) from the Michigan Inpatient Database, treated between July 1, 2010, and June 30, 2013...
October 17, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29135066/developing-and-sustaining-a-career-as-a-transdisciplinary-nurse-scientist
#2
Kathleen T Hickey
PURPOSE: The purpose of this article is to provide an overview of strategies to build and sustain a career as a nurse scientist. This article examines how to integrate technologies and precision approaches into clinical practice, research, and education of the next generation of nursing scholars. DESIGN: This article presents information for shaping a sustainable transdisciplinary career. Programs of research that utilize self-management to improve quality of life are discussed throughout the article...
November 14, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/29132930/a-novel-algorithm-increases-the-delivery-of-effective-cardiac-resynchronization-therapy-during-atrial-fibrillation-the-crtee-randomized-cross-over-trial
#3
Christopher J Plummer, Christopher M Frank, Zsolt Bári, Yahya S Al Hebaishi, Ruth Nicholson Klepfer, Robert W Stadler, Subham Ghosh, Shufeng Liu, Suneet Mittal
BACKGROUND: Cardiac resynchronization therapy (CRT) requires a high % of ventricular pacing (%Vp) to maximize its clinical benefits. Atrial fibrillation (AF) has been shown to reduce %Vp in CRT due to competition with irregular intrinsic atrio-ventricular (AV) conduction. We report the results of a prospective randomized cross-over trial evaluating the amount of effective CRT delivered during AF with a novel algorithm (eCRTAF). OBJECTIVE: To determine whether eCRTAF increases the amount of effective CRT delivered during AF when compared to a currently available rate regularization algorithm...
November 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29125053/twenty-minutes-of-normothermic-cardiac-arrest-in-a-pig-model-the-role-of-short-term-hypothermia-for-neurological-outcome
#4
Katharina Foerster, Christoph Benk, Friedhelm Beyersdorf, Heidi Cristina Schmitz, Karin Wittmann, Itumeleng Taunyane, Claudia Heilmann, Georg Trummer
INTRODUCTION: Cardiopulmonary resuscitation restores circulation, but with inconsistent blood-flow and pressures. Our recent approach using an extracorporeal life support system, named "controlled integrated resuscitation device" (CIRD), may lead to improved survival and neurological recovery after cardiac arrest (CA). The basic idea is to provide a reperfusion tailored to the individual patient by control of the conditions of reperfusion and the composition of the reperfusate. Hypothermia is one aspect of this concept...
November 1, 2017: Perfusion
https://www.readbyqxmd.com/read/29093259/-a-case-of-arrhythmias-syncope-diagnosed-by-implantable-loop-recorder
#5
Wanlu Zhou, Bilian Chen
Syncope is a clinical symptom for many kinds of diseases. The reasons for some syncope are still not clear even after a comprehensive and systematic examination, known as unexplained syncope. The clinical data of one patient with recurrent syncope, who had received the implanted loop recorder (ILR) in Xiangya Hospital, Central South University, were retrospectively analyzed. The instrument recorded the first syncope at a time of recurrence for the sustained ventricular tachycardia in 704 days after ILR. The patient was thus diagnosed as arrhythmic syncope and received an operation with implantable cardioverter defibrillator...
October 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29068499/changes-in-paced-signals-may-predict-in-hospital-cardiac-arrest
#6
Mina Attin, Spencer Rosero, Jimmy Ding, Scot Nolan, Rebecca Tucker
BACKGROUND: An increasing number of patients with chronic illnesses have implanted cardiac rhythm devices such as pacemakers and implantable cardioverter-defibrillators (ICD). This study was conducted to identify potentially useful predictors of in-hospital cardiac arrest (I-HCA) within paced electrocardiogram (ECG) signals from cardiovascular patients with implanted medical devices. METHODS: In this retrospective study of 17 subjects, full-disclosure ECG traces prior to the time of documented I-HCA were analyzed to determine R-R intervals and QRS durations (QRSd)...
October 25, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29057442/-subcutaneous-implantable-cardioverter-defibrillator-in-prevention-of-sudden-cardiac-death-in-poland-opinion-paper-endorsed-by-the-polish-cardiac-society-working-group-on-heart-rhythm
#7
Paweł Ptaszyński, Marcin Grabowski, Oskar Kowalski, Maciej Kempa, Przemysław Mitkowski, Andrzej Przybylski, Maciej Sterliński
In the past years, cardiovascular mortality has decreased but despite these cardiovascular diseases are responsible for millions of deaths every year in the world and approximately 25% of which are sudden cardiac death (SCD). Implantable defibrillators (ICD) is proven therapy used in primary and secondary SCD prevention. Currently majority of devices use transvenous leads inserted predominantly into the right heart for both pacing and defibrillation. On the other hand, ICD may cause complica-tions, including inappropriate shocks, device-related infection and lead failure...
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29055454/spontaneous-yawning-in-patients-with-multiple-sclerosis-a-polygraphic-study
#8
Hülya Uluğut Erkoyun, Yeşim Beckmann, Nazlı Gamze Bülbül, Tülay Kurt İncesu, Nevin Gürgör Kanat, Cumhur Ertekin
BACKGROUND: Patients with multiple sclerosis (MS) suffer from the repetitive yawning and sleep problems. Yawning is observed in MS and other central nervous system disorders and yawning and swallowing may be controlled by the network of the brain stem. Therefore it is important to investigate the MS patients with various clinical and radiological locations in order to understand the role of brainstem on the yawning mechanisms. One hour polygraphic recording would be crucial method for this purpose, because it is easy to observe spontaneous yawning (SY) and spontaneous swallowing (SS) together with their electrophysiologic counterparts...
October 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29048460/cardiovascular-magnetic-resonance-imaging-in-patients-with-cardiac-implantable-electronic-devices-a-device-dependent-imaging-strategy-for-improved-image-quality
#9
Sebastian Hilbert, Cosima Jahnke, Susanne Loebe, Sabrina Oebel, Alexander Weber, Ricardo Spampinato, Sergio Richter, Michael Doering, Andreas Bollmann, Philipp Sommer, Gerhard Hindricks, Ingo Paetsch
Aims: To prospectively determine evaluability of routine cardiovascular magnetic resonance (CMR) diagnostic modules in a referral population of implanted rhythm device all-comers, and to establish a device-dependent CMR imaging strategy to achieve optimal image quality. Methods and results: One hundred and twenty-eight patients with cardiac implantable electronic devices [insertable cardiac monitoring system, n = 14; implantable loop-recorder, n = 21; pacemaker, n = 31; implantable cardioverter-defibrillator (ICD), n = 50; and cardiac resynchronization therapy defibrillator (CRT-D), n = 12] underwent clinically indicated CMR at 1...
October 18, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29046320/mortality-and-cerebrovascular-events-following-heart-rhythm-disorder-management-procedures
#10
Justin Z Lee, Jayna Ling, Nancy N Diehl, David O Hodge, Deepak Padmanabhan, Ammar M Killu, Malini Madhavan, Peter A Noseworthy, Suraj Kapa, Christopher J McLeod, Yong-Mei Cha, Abhishek J Deshmukh, Komandoor Srivathsan, Fred M Kusumoto, Win-Kuang Shen, Paul A Friedman, Thomas M Munger, Samuel J Asirvatham, Douglas L Packer, Siva K Mulpuru
Background -Recognition of rates and causes of hard, patient-centered outcomes of death and cerebrovascular event (CVE) after heart rhythm disorder management (HRDM) procedures is an essential step for development of quality improvement programs in electrophysiology laboratories. Our primary aim was to assess and characterize death and CVE (stroke or transient ischemic attack) after HRDM procedures over a 17-year period. Methods -We performed a retrospective cohort study of all patients undergoing HRDM procedures between January 2000 and November 2016 at the Mayo Clinic...
October 18, 2017: Circulation
https://www.readbyqxmd.com/read/29042422/cardiac-resynchronization-therapy-using-quadripolar-versus-non-quadripolar-left-ventricular-leads-programmed-to-biventricular-pacing-with-single-site-left-ventricular-pacing-impact-on-survival-and-heart-failure-hospitalization
#11
Francisco Leyva, Abbasin Zegard, Tian Qiu, Edmund Acquaye, Gaetano Ferrante, Jamie Walton, Howard Marshall
BACKGROUND: In cardiac resynchronization therapy (CRT), quadripolar (QUAD) left ventricular (LV) leads are less prone to postoperative complications than non-QUAD leads. Some studies have suggested better clinical outcomes. METHODS AND RESULTS: Clinical events were assessed in 847 patients after CRT-pacing or CRT-defibrillation using either QUAD (n=287) or non-QUAD (n=560), programmed to single-site site LV pacing. Over a follow-up period of 3.2 years (median [interquartile range, 1...
October 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29040554/frailty-syndrome-an-emerging-clinical-problem-in-the-everyday-management-of-clinical-arrhythmias-the-results-of-the-european-heart-rhythm-association-survey
#12
Stefano Fumagalli, Tatjana S Potpara, Torben Bjerregaard Larsen, Kristina H Haugaa, Dan Dobreanu, Alessandro Proclemer, Nikolaos Dagres
The age of patients presenting with complex arrhythmias is increasing. Frailty is a multifaceted syndrome characterized by an increased vulnerability to stressors and a decreased ability to maintain homeostasis. The prevalence of frailty is associated with age. The aims of this European Heart Rhythm Association (EHRA) EP Wire survey were to evaluate the proportion of patients with frailty and its influence on the clinical management of arrhythmias. A total of 41 centres-members of the EHRA Electrophysiology Research Network-in 14 European countries completed the web-based questionnaire in June 2017...
November 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29036446/cardiac-resynchronization-therapy-when-no-lateral-pacing-option-exists-vectorcardiographic-guided-non-lateral-left-ventricular-lead-placement-predicts-acute-hemodynamic-response
#13
Stian Ross, Hans Henrik Odland, Alfonso Aranda, Thor Edvardsen, Lars Ove Gammelsrud, Trine Fink Haland, Richard Cornelussen, Einar Hopp, Erik Kongsgaard
Aims: A difficult cardiac resynchronization therapy (CRT) implantation scenario emerges when no lateral pacing option exists. The aim of this study was to explore the effect of biventricular pacing (BIVP) on vectorcardiographic parameters in patients with a non-lateral left ventricular (LV) lead position. We hypothesized that perimeter and area reduction for both the QRS complex and T-wave would predict acute CRT response. Methods and results: Twenty-six patients (14 ischaemic) with a mean age of 63 ± 10 years and standard CRT indication underwent device implantation with continuous LV pressure registration...
September 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29033518/a-rare-experience-of-infective-residual-sheath-in-the-wall-of-the-innominate-vein-after-extraction-of-implantable-defibrillators
#14
Yuan-Hao Liu, Wei-Shiang Lin, Yi-Chang Lin, Chih-Yuan Lin, Chien-Sung Tsai, Yi-Ting Tsai
BACKGROUND: Cardiac device-related infective endocarditis is an uncommon but potentially fatal complication. Therefore, cardiac devices should be removed as soon as a device-related infection is suspected. CASE REPORT: A 56-year-old male with a history of arrhythmogenic right ventricular dysplasia with implantable cardioverter-defibrillators (ICDs) 7 years earlier and re-implantation of ICDs due to dysfunction 18 months ago presented with erosion of the ICD pocket with Pseudomonas bacteremia...
July 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29031455/does-permanent-atrial-fibrillation-modify-response-to-cardiac-resynchronization-therapy-in-heart-failure-patients
#15
Ana Abreu, Mário Oliveira, Pedro Silva Cunha, Helena Santa Clara, Guilherme Portugal, Inês Gonçalves Rodrigues, Vanessa Santos, Luís Morais, Mafalda Selas, Rui Soares, Luísa Branco, Rui Ferreira, Miguel Mota Carmo
INTRODUCTION: The benefits of cardiac resynchronization therapy (CRT) documented in heart failure (HF) may be influenced by atrial fibrillation (AF). We aimed to compare CRT response in patients in AF and in sinus rhythm (SR). METHODS: We prospectively studied 101 HF patients treated by CRT. Rates of clinical, echocardiographic and functional response, baseline NYHA class and variation, left ventricular ejection fraction, volumes and mass, atrial volumes, cardiopulmonary exercise test (CPET) duration (CPET dur), peak oxygen consumption (VO2max) and ventilatory efficiency (VE/VCO2 slope) were compared between AF and SR patients, before and at three and six months after implantation of a CRT device...
October 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29030235/impact-of-ventricular-tachycardia-ablation-on-healthcare-utilization
#16
Jeffrey R Winterfield, Alexander R Kent, Edward Karst, Nirav Dalal, Srijoy Mahapatra, T Jared Bunch, Matthew R Reynolds, David J Wilber
BACKGROUND: Catheter ablation of ventricular tachycardia (VT) has been shown to reduce the number of recurrent shocks in patients with implantable cardioverter defibrillators (ICDs). However, it remains unclear how VT ablation affects post-procedural medical and pharmaceutical usage. OBJECTIVES: The objective of this study was to investigate changes in healthcare resource utilization (HCRU) following VT ablation. METHODS: This large-scale, real-world, retrospective study used the MarketScan databases to identify patients in the U...
October 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29016753/clinical-impact-safety-and-accuracy-of-the-remotely-monitored-implantable-loop-recorder-medtronic-reveal-linqtm
#17
Massimiliano Maines, Alessandro Zorzi, Giancarlo Tomasi, Carlo Angheben, Domenico Catanzariti, Lucio Piffer, Maurizio Del Greco
Aims: Implantable loop recorders (ILR) are indicated in a variety of clinical situations when extended cardiac rhythm monitoring is needed. We aimed to assess the clinical impact, safety, and accuracy of the new Medtronic Reveal LINQTM ILR that can be inserted outside the electrophysiology (EP) laboratory and remotely monitored. Methods and results: All 154 consecutive patients (100 males, 63 ± 15 year-old) who received the Reveal LINQTM ILR during the period July 2014-June 2016 were enrolled...
July 24, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016747/five-year-trends-2008-2012-in-cardiac-implantable-electrical-device-utilization-in-five-european-nations-a-case-study-in-cross-country-comparisons-using-administrative-databases
#18
Helen Banks, Aleksandra Torbica, Cinzia Valzania, Yauheniya Varabyova, Valentina Prevolnik Rupel, Rod S Taylor, Theresa Hunger, Simon Walker, Giuseppe Boriani, Giovanni Fattore
Aims: Common methodologies for analysis of analogous data sets are needed for international comparisons of treatment and outcomes. This study tests using administrative hospital discharge (HD) databases in five European countries to investigate variation/trends in pacemaker (PM) and implantable cardioverter defibrillator (ICD) implant rates in terms of patient characteristics/management, device subtype, and initial implantation vs. replacement, and compares findings with existing literature and European Heart Rhythm Association (EHRA) reports...
June 14, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28990316/non-invasive-assessment-of-left-ventricular-filling-pressure
#19
REVIEW
Sherif F Nagueh
Dyspnoea is a presenting symptom for patients with heart failure. It is often due to elevated left ventricular (LV) filling pressure but can be due to pulmonary disease or other non-cardiac reasons. While physical examination is useful, it has its limitations. Accordingly, non-invasive imaging has an important role in the diagnostic evaluation of patients with known or suspected heart failure. Echocardiography is usually the first test obtained and is used to determine LV volumes, ejection fraction and mass as well as right ventricular size and function, left and right atrial volumes, valvular lesions, and pulmonary artery pressures...
October 8, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28989025/aav-mediated-conversion-of-human-pluripotent-stem-cell-derived-pacemaker
#20
Patrick K W Chan, Lin Geng, Yi Gao, Wendy Keung, Ronald A Li
Malfunction of nodal pacemaker (Pm) cardiomyocytes (CMs) due to diseases or aging leads to rhythm generation disorders, necessitating electronic Pm implantation. We functionally reprogrammed human pluripotent stem cell (hPSC) derived-ventricular (V) CMs into -PmCMs via recombinant adeno-associated virus serotype 9 (rAAV9)-mediated overexpression of engineered HCN1 channel (HCN1ΔΔΔ) whose S3-S4 linker has been strategically deleted by design to promote cardiac pacemaking. rAAV9-HCN1ΔΔΔ-reprogrammed hPSC-PmCMs converted from -VCMs showed automaticity and action potential parameters typical of native nodal PmCMs...
December 9, 2017: Biochemical and Biophysical Research Communications
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