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Cardiac rhythm devices

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https://www.readbyqxmd.com/read/28339794/short-term-dabigatran-interruption-before-cardiac-rhythm-device-implantation-multi-centre-experience-from-the-re-ly-trial
#1
Vidal Essebag, Riccardo Proietti, David H Birnie, Jia Wang, James Douketis, Benoit Coutu, Ratika Parkash, Gregory Y H Lip, Stefan H Hohnloser, Andrew Moriarty, Jonas Oldgren, Stuart J Connolly, Michael Ezekowitz, Jeff S Healey
Aims: Cardiac implantable electronic device (CIED) surgery is commonly performed in patients with atrial fibrillation (AF). The current analysis was undertaken to compare peri-operative anticoagulation management, bleeding, and thrombotic events in AF patients treated with dabigatran vs. warfarin. Methods and results: This study included 611 patients treated with dabigatran vs. warfarin who underwent CIED surgery during the RE-LY trial. Among 201 warfarin-treated patients, warfarin was interrupted a median of 144 (inter-quartile range, IQR: 120-216) h, and 37 (18...
February 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339564/emerging-molecular-therapies-targeting-myocardial-infarction-related-arrhythmias
#2
Helen E Driessen, Toon A B van Veen, Gerard J J Boink
Cardiac disease is the leading cause of death in the developed world. Ventricular arrhythmias associated with myocardial ischaemia and/or infarction are a major contributor to cardiovascular mortality, and require improved prevention and treatment. Drugs, devices, and radiofrequency catheter ablation have made important inroads, but have significant limitations ranging from incomplete success to undesired toxicities and major side effects. These limitations derive from the nature of the intervention. Drugs are frequently ineffective, target the entire heart, and often do not deal with the specific arrhythmia trigger or substrate...
October 6, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28324186/association-of-evening-smartphone-use-with-cardiac-autonomic-nervous-activity-after-awakening-in-adolescents-living-in-high-school-dormitories
#3
Yoko Nose, Rina Fujinaga, Maki Suzuki, Ikuyo Hayashi, Toshio Moritani, Kazuhiko Kotani, Narumi Nagai
PURPOSE: Smartphones are prevalently used among adolescents; however, nighttime exposure to blue-enriched light, through electric devices, is known to induce delays of the circadian rhythm phases and poor morning somatic conditions. We therefore investigated whether evening smartphone use may affect sleep-wake cycle and cardiac autonomic nervous system (ANS) activity after awaking in dormitory students. METHODS: The participants were high school students, living under dormitory rules regarding the curfew, study, meals, lights-out, and wake-up times...
March 21, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28315562/improvement-in-left-ventricular-intrinsic-dyssynchrony-with-cardiac-resynchronization-therapy
#4
Serdar Bozyel, Ayşen Ağaçdiken Ağır, Tayfun Şahin, Umut Çelikyurt, Müjdat Aktaş, Onur Argan, İrem Yılmaz, Kurtuluş Karaüzüm, Emir Derviş, Ahmet Vural, Dilek Ural
OBJECTIVE: Cardiac resynchronization therapy (CRT) has been shown to induce a structural and electrical remodeling; the data on whether left ventricle (LV) reverse remodeling is associated with restitution of intrinsic contraction pattern are unknown. In this study, we investigated the presence of improvement in left ventricular intrinsic dyssynchrony in patients with CRT. METHODS: A total of 45 CRT recipients were prospectively studied. Dyssynchrony indexes including interventricular mechanical delay (IVMD) and tissue Doppler velocity opposing-wall delay (OWD) as well as QRS duration on 12-lead surface electrocardiogram were recorded before CRT device implantation...
March 3, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28291620/pacing-in-congenital-heart-disease-a-four-decade-experience-in-a-single-tertiary-centre
#5
Disha Midha, Zhong Chen, David G Jones, Howell J Williams, Karen Lascelles, Julian Jarman, Jonathan Clague, Janice Till, Konstatinos Dimopoulos, Sonya V Babu-Narayan, Vias Markides, Michael A Gatzoulis, Tom Wong
BACKGROUND: The increased risk of brady- and tachy-arrhythmias in the congenital heart disease (CHD) population means that cardiac rhythm management devices are often required at an early age and expose patients to device-related complications. The present study drew upon four decades of experience at a tertiary adult congenital heart disease ACHD center and aimed to investigate the indication for cardiac implantable electronic devices (CIEDs) and predictors of late device-related complication requiring re-intervention...
March 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28268405/wearable-ecg-platform-for-continuous-cardiac-monitoring
#6
S P Preejith, R Dhinesh, Jayaraj Joseph, Mohanasankar Sivaprakasam
An ultra-low power ECG platform for continuous and minimally intrusive monitoring for systems with minimal processing capabilities, is presented in this paper. The platform is capable of detecting abnormalities in the ECG signal by extracting and analyzing features related to various cardiac trends. The platform is built to continuously operate on any of the 12 leads and the presented work includes a single lead implementation that works on lead I or II. A single lead, wearable ECG patch that can detect rhythm based arrhythmias and continuously monitor beat-to-beat heart rate and respiratory rate has been developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28247846/incidence-of-device-detected-atrial-fibrillation-and-long-term-outcomes-in-patients-with-hypertrophic-cardiomyopathy
#7
Hannah G van Velzen, Dominic A M J Theuns, Sing-Chien Yap, Michelle Michels, Arend F L Schinkel
Atrial fibrillation (AF) is a common complication of hypertrophic cardiomyopathy (HC) and associated with adverse clinical outcomes, such as thromboembolisms. Cardiac implantable electronic devices (CIEDs) enable early detection of AF. The aim of this study was to assess the incidence of device-detected AF and the impact on long-term outcomes in patients with HC. The cohort consisted of 132 patients (63% men, mean age 52 ± 16 years) with a diagnosis of HC and a CIED. Follow-up started at the date of CIED implantation to assess the incidence of device-detected AF...
January 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28229483/venous-hemodialysis-catheters-and-cardiac-implantable-electronic-devices-avoiding-a-high-risk-combination
#8
EDITORIAL
Theodore F Saad, Henry L Weiner
End-stage renal disease is frequently accompanied by cardiac comorbidity that warrants treatment with a cardiovascular implantable electronic device (permanent pacemaker or implantable cardioverter-defibrillator). In the United States, chronic hemodialysis (HD) population, cardiac implantable devices are present in up to 10.5% of patients; a venous HD catheter is utilized for blood access in 18% of prevalent patients. The concomitant presence of a venous HD catheter and cardiovascular implantable device creates a high-risk circumstance, with potential for causing symptomatic central venous stenosis, and for developing complicated endovascular infection...
February 23, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28226575/wearable-ecg-platform-for-continuous-cardiac-monitoring
#9
S P Preejith, R Dhinesh, Jayaraj Joseph, Mohanasankar Sivaprakasam, S P Preejith, R Dhinesh, Jayaraj Joseph, Mohanasankar Sivaprakasam, R Dhinesh, Mohanasankar Sivaprakasam, S P Preejith, Jayaraj Joseph
An ultra-low power ECG platform for continuous and minimally intrusive monitoring for systems with minimal processing capabilities, is presented in this paper. The platform is capable of detecting abnormalities in the ECG signal by extracting and analyzing features related to various cardiac trends. The platform is built to continuously operate on any of the 12 leads and the presented work includes a single lead implementation that works on lead I or II. A single lead, wearable ECG patch that can detect rhythm based arrhythmias and continuously monitor beat-to-beat heart rate and respiratory rate has been developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28152451/can-natural-ways-to-stimulate-the-vagus-nerve-improve-seizure-control
#10
REVIEW
Alan W C Yuen, Josemir W Sander
The vagus nerve (VN) is the longest cranial nerve, innervating the neck, thorax and abdomen, with afferent fibers transmitting a range of interoceptive stimuli and efferent fibres to somatic structures and autonomic preganglions. Over the last few decades, electrical stimulation of the VN using implanted devices (VNS) has been developed leading to its approval for the treatment of epilepsy and depression. More recently, non-invasive devices to stimulation the VN have been developed. The VN has many functions and the activity that is most amenable to assessment is its effect in controlling the cardiac rhythm...
February 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28111105/preoperative-treatment-of-obstructive-sleep-apnea-with-positive-airway-pressure-is-associated-with-decreased-incidence-of-atrial-fibrillation-after-cardiac-surgery
#11
Jim K Wong, Edward R Mariano, Anthony G Doufas, Megan J Olejniczak, Clete A Kushida
OBJECTIVE: Based on clinical studies in the nonsurgical population that positive airway pressure (PAP) therapy for patients with obstructive sleep apnea (OSA) provides benefits for those with atrial fibrillation, the authors tested the hypothesis that PAP in patients with OSA reduces the incidence of postoperative atrial fibrillation (POAF) after cardiac surgery. DESIGN: Retrospective analysis. SETTING: Single-center university hospital. PARTICIPANTS: The study comprised 192 patients in sinus rhythm preoperatively who were undergoing nontransplantation or ventricular assist device implantation cardiac surgery requiring cardiopulmonary bypass but not requiring systemic circulatory arrest, with documented PAP adherence from January 2008 to October 2015...
November 14, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28109525/wire-and-needle-potentials-facilitating-transseptal-puncture
#12
Konstantin M Heinroth, Thomas Hartkopf, Alexander Plehn, Joachim Wilhelm, Susanne Unverzagt, Stefan Frantz, Alexander Schirdewan
BACKGROUND: Transseptal puncture for left heart interventions became a routine procedure guided by fluoroscopy and echocardiography. The use of intracardiac potentials derived from the sheath-transseptal-needle/guidewire-combination may provide helpful information to increase safety of this procedure. METHODS AND RESULTS: We recorded the intracardiac potentials from the sheath-transseptal-needle/guidewire-combination during the transseptal puncture procedure in 31 consecutive patients (mean age 67...
January 15, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28089095/characteristics-of-anatomy-and-function-of-the-left-atrial-appendage-and-their-relationships-in-patients-with-cardioembolic-stroke-a-3-dimensional-transesophageal-echocardiography-study
#13
Yuki Matsumoto, Yoshihiro Morino, Akiko Kumagai, Maiko Hozawa, Motoyuki Nakamura, Yasuo Terayama, Atsushi Tashiro
BACKGROUND: Increasing attention is being paid to the left atrial appendage (LAA) in the context of risk stratification in cardioembolic stroke (CES) and the requirement for meticulous planning of percutaneous closure device implantation. However, detailed systematic assessment of the LAA remains limited. METHODS: This study evaluated the anatomy and function of LAA using 3-dimensional transesophageal echocardiography (3D-TEE) on 194 consecutive patients older than 50 years old hospitalized exclusively for CES...
January 6, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28079553/end-of-life-decisions-in-heart-failure-to-turn-off-the-intracardiac-device-or-not
#14
Bilal Ayach, Amrit Malik, Colette Seifer, Shelley Zieroth
PURPOSE OF REVIEW: Heart failure is a significant public health concern around the world. Implantable cardioverter defibrillators with or without cardiac resynchronization therapy (CRT-D) have proven survival benefit. As patients progress to end-stage disease, management shifts to palliative care, and cardiologists are often confronted with how to best manage these devices. RECENT FINDINGS: Studies suggest that up to one-third of patients with an implantable cardioverter defibrillator receive painful shocks in the last 24 h of life...
March 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28055987/heart-beat-classification-from-single-lead-ecg-using-the-synchrosqueezing-transform
#15
Christophe L Herry, Martin Frasch, Andrew Je Seely, Hau-Tieng Wu
The processing of ECG signal provides a wealth of information on cardiac function and overall cardiovascular health. While multi-lead ECG recordings are often necessary for a proper assessment of cardiac rhythms, they are not always available or practical, for example in fetal ECG applications. Moreover, a wide range of small non-obtrusive single-lead ECG ambulatory monitoring devices are now available, from which heart rate variability (HRV) and other health-related metrics are derived. Proper beat detection and classification of abnormal rhythms is important for reliable HRV assessment and can be challenging in single-lead ECG monitoring devices...
January 5, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28011803/the-italian-subcutaneous-implantable-cardioverter-defibrillator-survey-s-icd-why-not
#16
Giovanni Luca Botto, Giovanni B Forleo, Alessandro Capucci, Francesco Solimene, Antonello Vado, Giovanni Bertero, Pietro Palmisano, Ennio Pisanò, Antonio Rapacciuolo, Tommaso Infusino, Alessandro Vicentini, Miguel Viscusi, Paola Ferrari, Antonello Talarico, Giovanni Russo, Giuseppe Boriani, Luigi Padeletti, Mariolina Lovecchio, Sergio Valsecchi, Antonio D'Onofrio
AIMS: A recommendation for a subcutaneous-implantable cardioverter-defibrillator (S-ICD) has been added to recent European Society of Cardiology Guidelines. However, the S-ICD is not ideally suitable for patients who need pacing. The aim of this survey was to analyse the current practice of ICD implantation and to evaluate the actual suitability of S-ICD. METHODS AND RESULTS: The survey 'S-ICD Why Not?' was an independent initiative taken by the Italian Heart Rhythm Society (AIAC)...
December 23, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28011801/impact-of-haemodynamic-sonr-sensor-on-monitoring-of-left-ventricular-function-in-patients-undergoing-cardiac-resynchronization-therapy
#17
Stefania Sacchi, Paolo Pieragnoli, Giuseppe Ricciardi, Gino Grifoni, Luigi Padeletti
AIMS: The haemodynamic SonR sensor is able to measure myocardial contractility. The isometric effort is useful in quantifying left ventricular (LV) performance. We investigated the amplitude changes in SonR signal over time and during static exercise according to the recovery of the left ventricle. METHODS AND RESULTS: Twenty five patients [18 male, 70 ± 8 years, LV ejection fraction (LVEF) 29 ± 5%, in sinus rhythm] underwent biventricular SonR implantable cardioverter defibrillator implant...
December 23, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27989041/left-atrial-and-left-ventricular-function-and-remodeling-following-percutaneous-mitral-valve-repair
#18
Christos Rammos, Tobias Zeus, Jan Balzer, Verena Veulemans, Katharina Hellhammer, Svenja Niebel, Malte Kelm, Tienush Rassaf
BACKGROUND: Mitral regurgitation causes left atrial (LA) and left ventricular (LV) dysfunction, dilatation, and remodeling. Following percutaneous mitral valve repair (PMVR) using the MitraClip® approach, reverse cardiac remodeling is desirable. To date, the influence of PMVR on LA and segmental LV function and remodeling has not been investigated in detail. METHODS: Twenty-six patients who received the MitraClip device were enrolled in an open-label, single-center observational study...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27977016/heart-sounds-at-home-feasibility-of-an-ambulatory-fetal-heart-rhythm-surveillance-program-for-anti-ssa-positive-pregnancies
#19
B F Cuneo, A J Moon-Grady, S-E Sonesson, S Levasseur, L Hornberger, M T Donofrio, A Krishnan, A Szwast, L Howley, D W Benson, E Jaeggi
OBJECTIVE: Fetuses exposed to anti-SSA (Sjögren's) antibodies are at risk of developing irreversible complete atrioventricular block (CAVB), resulting in death or permanent cardiac pacing. Anti-inflammatory treatment during the transition period from normal heart rhythm (fetal heart rhythm (FHR)) to CAVB (emergent CAVB) can restore sinus rhythm, but detection of emergent CAVB is challenging, because it can develop in ⩽24 h. We tested the feasibility of a new technique that relies on home FHR monitoring by the mother, to surveil for emergent CAVB...
March 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27968767/safety-of-device-implantation-under-antipatelet-therapy-with-ticagrelor-about-20-cases
#20
W Amara, S Naccache, C Akret, S Cheggour, S M'Zoughi, G Galuscan, A Dompnier
INTRODUCTION: Management of antiplatelet therapy at the time of device implantation remains controversial. This study aimed to assess the risk of bleeding complications in patients receiving ticagrelor at the time of cardiac device surgery. METHODS: We performed a multicentre (N=4), retrospective study from January 2015 to January 2016. The survey included all patients (pts) treated with ticagrelor before undergoing pacemaker, implantable-cardioverter defibrillator (ICD) implantation or generator replacement...
November 2016: Annales de Cardiologie et D'angéiologie
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