8,983 results match your criteria Pacemakers and Implantable Cardioverter Defibrillators


Evaluation of the safety of users of active implantable medical devices (AIMD) in the working environment in terms of exposure to electromagnetic fields - practical approach to the requirements of European Directive 2013/35/EU.

Int J Occup Med Environ Health 2018 Nov 5. Epub 2018 Nov 5.

Central Institute for Labour Protection - National Research Institute, Warszawa, Poland (Laboratory of Electromagnetic Hazards).

Objectives: Electromagnetic fields (EMF) may cause malfunctions in electronic devices, in particular in active implantable medical devices (AIMD), along with discomfort or health hazards to users. The use of AIMD by workers is increasing (especially cardiac pacemakers, implantable cardioverter defibrillators and wearable insulin infusion pumps). Electromagnetic fields may be much stronger in the working environment than applied in basic immunity tests of AIMD (based on EN 60601- 1-2:2015 and EN 50527-1:2016). Read More

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November 2018
1 Read

Pacemaker implantation after transcatheter aortic valve: why is this still happening?

J Thorac Dis 2018 Nov;10(Suppl 30):S3614-S3619

Heart Center Lucerne, Luzerner Kantonsspital, Lucerne, Switzerland.

During the past years, the industry and most transcatheter aortic valve operators have focused on reduction of paravalvular leaks rather than on the reduction of permanent pacemakers (PPM). However, since indication for transcatheter aortic valve implantation (TAVI) is moving toward a healthier and younger patient population, new PPMs may become more of an issue. Certain factors such as pre-existing conduction disorders or anatomical features cannot be changed. Read More

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November 2018

Remote Monitoring of Atrial High Rate Episodes in Pacemaker Patients. The Rapid Study Design.

J Atr Fibrillation 2018 Aug 31;11(2):2075. Epub 2018 Aug 31.

Departmental Unit of Electrophysiology, Evaluation and Treatment of Arrhythmias, Monaldi Hospital, Naples, Italy.

Background: Remote Monitoring (RM) has been introduced for several years and nowadays most pacemakers are equipped with such a technology. RM can provide early detection of high atrial rate episodes (AHREs) onset and enable prompt medical intervention. However, there are still little data on the clinical reactions triggered by the AHRE detected by RM of pacemaker recipients and on their possible benefit on patients' outcome. Read More

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An update on recent developments in the prevention and treatment of Staphylococcus aureus biofilms.

Int J Med Microbiol 2018 Nov 27. Epub 2018 Nov 27.

Center for Nanosciences and Molecular Medicine, Amrita School of Medical Sciences and Research Center (AIMS), Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India. Electronic address:

Staphylococcus aureus (S. aureus) readily forms biofilms on prosthetic devices such as the pacemakers, heart valves, orthopaedic implants, and indwelling catheters. Its biofilms are recalcitrant to antibiotic therapy and pose a serious burden in the healthcare setting as they drastically increase the treatment cost and morbidity of the patient. Read More

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November 2018

Design and evaluation of the Micra Transcatheter Pacing System for bradyarrhythmia management.

Future Cardiol 2018 Dec 5. Epub 2018 Dec 5.

Cardiac Rhythm Management Research Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK.

Permanent cardiac pacemakers have traditionally comprised a surgically implanted subcutaneous pulse generator affixed to at least one transvenous pacing lead. Despite technological advances, implant-related complications and transvenous-lead failure rates have remained high. The Micra Transcatheter Pacing System is a miniaturized single chamber pacemaker that is implanted directly into the right ventricle, eliminating the subcutaneous pocket and creating a leadless pacemaker system. Read More

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December 2018
1 Read

Optimizing resynchronization pacing in the failing systemic right ventricle.

Pacing Clin Electrophysiol 2018 Dec 4. Epub 2018 Dec 4.

Section of Pediatric Cardiology, The Children's Hospital of Michigan, Wayne State University School of Medicine, 3901 Beaubien Blvd, Detroit, MI, 48201.

Cardiac resynchronization pacing therapy (CRT) can be a potentially effective modality to delay the need for heart transplantation and improve the clinical status among patients with heart failure. Unfortunately, published guidelines and studies with an over-reliance on ejection fraction (EF) and QRS duration as markers for efficacy are frequently not applicable to the ever-growing number of adults with repaired congenital heart defects (CHD), some with systemic anatomical right ventricles as well as pre-existing pacemakers. In this issue of Pacing and Clinical Electrophysiology, Moore et al introduce a novel pre-selection screening process to optimize paced contractility among patients with repaired CHD and systemic right ventricles. Read More

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December 2018
3 Reads

Ultrasound-Guided axillary venous access for pediatric and adult congenital lead implantation.

Pacing Clin Electrophysiol 2018 Dec 4. Epub 2018 Dec 4.

Children's Hospital at Montefiore, Bronx, NY.

Background: Axillary venous access with ultrasound guidance for pediatric transvenous lead implantation may reduce risks for pneumothorax and hemothorax. The objective was to retrospectively evaluate ultrasound-guided axillary vein access as an alternative to the subclavian approach.

Methods: The technique consists of ultrasonographic identification of the axillary vein at the delto-pectoral groove after initial contrast venography. Read More

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December 2018

Sudden-onset severe presyncope in a 67-year-old man.

Heart 2018 Dec 4. Epub 2018 Dec 4.

Cardiology Department, Addenbrooke's Hospital, Cambridge, UK.

A 67-year-old man presented to the emergency department with sudden onset of severe presyncope. He reported that he had a permanent pacemaker implanted in 2006 following atrioventricular node ablation for persistent atrial fibrillation (AF). After suffering increasing shortness of breath, he underwent upgrade to cardiac resynchronisation therapy (CRT) in 2016. Read More

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December 2018

The Utility of Magnetic Resonance Imaging-compatible Pacemakers in Neurosurgical Patients.

Cureus 2018 Sep 27;10(9):e3374. Epub 2018 Sep 27.

Neurological Surgery, University of Miami Miller School of Medicine, Miami, USA.

Artificial implantable pacemakers have long been a challenge to neurosurgeons seeking to perform advanced diagnostic imaging on their patients. Unfortunately, while the use of implantable pacemakers has been a life-saving advance for those with cardiac arrhythmias, they also often prevent these patients from undergoing magnetic resonance imaging (MRI). There have been multiple reported cases of pacemaker failure in the context of MRI use. Read More

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September 2018

A Rare Case of Complete Fragmentation of Pacemaker Lead after a High-Velocity Theme Park Ride.

Case Rep Cardiol 2018 18;2018:4192964. Epub 2018 Oct 18.

East Tennessee State University, Johnson City, TN, USA.

Pacemaker lead fracture is one of the most common causes of pacemaker malfunction and is most frequently associated with weight lifting or chest trauma. These patients usually present with symptoms of dizziness, syncope, chest discomfort, and palpitations or less commonly with extracardiac symptoms. Diagnosis is made by ECG and careful review of chest imaging such as chest X-ray or fluoroscopy. Read More

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October 2018

The first successful implantation of an intravenous AAIR pacemaker into autologous extracardiac lateral tunnel Fontan in the child.

J Electrocardiol 2018 Nov - Dec;51(6):1015-1018. Epub 2018 Jul 27.

Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian Center for Heart Diseases, Zabrze, Poland; Department of Dietetics, School of Public Health in Bytom, Medical University of Silesia, Katowice, Poland.

Patients with a single ventricle have complex anatomy that requires staged palliation which is usually the Fontan procedure. This procedure has undergone a lot of modifications to improve hemodynamics. Despite these efforts, sinus node dysfunction (SND) and bradyarrythmias are still common complications after Fontan operation, therefore there is a need of pacemakers implantation. Read More

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Electrical Stun Gun and Modern Implantable Cardiac Stimulators.

Health Phys 2019 Jan;116(1):18-26

Italian National Institute of Health, Rome, Italy.

The aim of the study is to investigate systematically the possible interactions between two types of stun guns and last-generation pacemakers and implantable defibrillators. Experimental measurements were performed on pacemakers and implantable defibrillators from five leading manufacturers, considering the effect of stun gun dart positioning, sensing modality, stun gun shock duration, and defibrillation energy level. More than 300 measurements were collected. Read More

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January 2019
1 Read

Effect of increasing heart rate on finger photoplethysmography fitness index (PPGF) in subjects with implanted cardiac pacemakers.

PLoS One 2018 28;13(11):e0207301. Epub 2018 Nov 28.

Centre of Advance Electronic & Communication Engineering (PAKET), Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia.

Finger photoplethysmography (PPG) is a noninvasive method that measures blood volume changes in the finger. The PPG fitness index (PPGF) has been proposed as an index of vascular risk and vascular aging. The objectives of the study were to determine the effects of heart rate (HR) on the PPGF and to determine whether PPGF is influenced by blood pressure (BP) changes. Read More

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November 2018

Insulin gene enhancer binding protein 1 induces adipose tissue‑derived stem cells to differentiate into pacemaker‑like cells.

Int J Mol Med 2018 Nov 27. Epub 2018 Nov 27.

Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China.

Hybrid approaches combining gene‑ and cell‑based therapies to make biological pacemakers are a promising therapeutic avenue for bradyarrhythmia. The present study aimed to direct adipose tissue‑derived stem cells (ADSCs) to differentiate specifically into cardiac pacemaker cells by overexpressing a single transcription factor, insulin gene enhancer binding protein 1 (ISL‑1). In the present study, the ADSCs were transfected with ISL‑1 or mCherry fluorescent protein lentiviral vectors and co‑cultured with neonatal rat ventricular cardiomyocytes (NRVMs) in vitro for 5‑7 days. Read More

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November 2018
1 Read

Are implanted electronic devices hackable?

Trends Cardiovasc Med 2018 Nov 22. Epub 2018 Nov 22.

Division of Cardiology, Queen's University, Kingston, Ontario, Canada. Electronic address:

Medical devices have become increasingly connected in recent years. While this added interconnectivity has provided capabilities for wireless communication and remote monitoring, it has also introduced possible risks for cybersecurity vulnerabilities. Lately, there has been an increased awareness of the potential for cybersecurity breaches in implanted cardiac devices (pacemakers and defibrillators) among patients, healthcare providers, and the media. Read More

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November 2018
3 Reads

Heart failure and right ventricular pacing - how to avoid the need for cardiac resynchronization therapy.

Expert Rev Med Devices 2018 Nov 26. Epub 2018 Nov 26.

a Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds , Leeds , UK.

Introduction: Heart failure is a common finding in patients with pacemakers implanted for bradycardia, with cross-sectional and longitudinal studies contributing to the growing consensus that right ventricular pacing can cause adverse cardiac remodeling and left ventricular systolic dysfunction increasing the risk of hospitalization and death. An unselected approach using cardiac resynchronization therapy from the time of first implant in patients with heart block has produced equivocal results. Contemporary research has therefore begun to focus on the stratification of patients' risk of pacemaker-associated impairment to permit focused, personalized management. Read More

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November 2018

Prognostic Significance of Incidental Nonsustained Ventricular Tachycardia Detected on Pacemaker Interrogation.

Am J Cardiol 2018 Nov 7. Epub 2018 Nov 7.

Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom.

Symptomatic sustained ventricular tachycardia is a life threatening arrhythmia requiring prompt treatment. However, the risk associated with asymptomatic nonsustained ventricular tachycardia (NSVT) detected on routine permanent pacemaker (PPM) interrogation in patients with known cardiac conduction disease is unknown. Our aim is to determine if asymptomatic NSVT detected on PPM interrogation is associated with increased mortality. Read More

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November 2018

Utility of transthoracic impedance and novel algorithm for sleep apnea screening in pacemaker patient.

Sleep Breath 2018 Nov 24. Epub 2018 Nov 24.

Center of Arrhythmia, Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beilishi Road 167#, Xicheng Qu, Beijing, 100037, China.

Background: Pacing patients was revealed with a high prevalence of sleep disorder, but mostly undiagnosed. The pacemaker with transthoracic impedance sensor and novel algorithm could identify sleep apnea (SA) event. This study aimed to evaluate accuracy of pacemaker in sleep apnea diagnosis. Read More

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November 2018
3 Reads

Contribution of Cardiac Implantable Electronic Devices to Thrombus Formation in Patients With Chronic Thromboembolic Pulmonary Hypertension.

JACC Clin Electrophysiol 2018 Nov 26;4(11):1431-1436. Epub 2018 Sep 26.

Division of Cardiovascular Medicine, University of California, San Diego, La Jolla, California. Electronic address:

Objectives: This study aimed to identify the prevalence of cardiac implantable electronic devices (CIEDs) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) and to describe the associated disease burden.

Background: CTEPH is a debilitating disease, now potentially curable with pulmonary thromboendarterectomy (PTE). The contribution of CIEDs to thrombosis in this patient population has not been previously studied. Read More

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November 2018
2 Reads

Influence and safety of electronic apex locators in patients with cardiovascular implantable electronic devices: a systematic review.

Libyan J Med 2019 Dec;14(1):1547071

a College of Dentistry , Taibah University , Madinah Al Munawwarah , Saudi Arabia.

The widespread use of cardiovascular implantable electronic devices has increased concerns regarding using electronic apex locators in patients with these devices. This systematic review investigated the effects and safety of using electronic apex locators in patients with cardiovascular implantable electronic devices.

Methods: An electronic search in the Cochrane Library, PubMed (MEDLINE), ScienceDirect, and Scientific Electronic Library Online (Scielo) databases for relevant articles published between December 2000 and December 2018 was performed. Read More

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December 2019
3 Reads

[Micra™ leadless pacemaker : Clinical experience and perspectives].

Herzschrittmacherther Elektrophysiol 2018 Dec 19;29(4):334-339. Epub 2018 Nov 19.

Klinik für Kardiologie und Internistische Intensivmedizin, Kepler Universitätsklinikum Linz, Medizinische Fakultät, Johannes Kepler Universität Linz, Altenberger Straße 69, 4040, Linz, Österreich.

Leadless pacemakers have the potential to fundamentally change the field of device therapy. As leads and generator pockets are no longer needed with this technology, many potentially dangerous complications of conventional pacemaker systems like lead fractures, lead endocarditis or pocket infections can be effectively avoided. At present, Micra™ (Medtronic Inc. Read More

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December 2018
1 Read

Shock to the heart: cardiac implantable devices' bad name in adults with tetralogy of Fallot.

Heart 2018 Nov 19. Epub 2018 Nov 19.

Division of Cardiology, Department of Medicine, University of Washington, Seattle, Washington, USA.

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November 2018
3 Reads

Leadless pacemakers: learning from experience-Authors' reply.

Europace 2018 Nov 16. Epub 2018 Nov 16.

Cardiology Department, University Hospital of Geneva, Rue Gabrielle Perret Gentil 4, Geneva, Switzerland.

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November 2018

Leadless pacemakers: learning from experience.

Authors:
Nicolas Clementy

Europace 2018 Nov 16. Epub 2018 Nov 16.

Cardiology Department, Trousseau Hospital, University of Tours, Service de Cardiologie, Hôpital Trousseau, CHRU de Tours, Tours, France.

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November 2018

Arrhythmia Evaluation and Management.

Authors:
Jason T Jacobson

Cardiol Clin 2019 Feb 29;37(1):55-62. Epub 2018 Oct 29.

Complex Arrhythmia Ablation Program, New York Medical College, Westchester Medical Center, Macy 130, 100 Woods Road, Valahalla, NY 10595, USA. Electronic address:

Patients with hypertrophic cardiomyopathy may present with a number of arrhythmias. Although not unique, arrhythmias in hypertrophic cardiomyopathy require management approaches that may differ from other populations. Standard permanent pacemaker indications can be seen, but unique applications and implantation considerations pertain to this population. Read More

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February 2019
4 Reads

Remote Monitoring of Implantable Cardioverter-Defibrillators, Cardiac Resynchronization Therapy and Permanent Pacemakers: A Health Technology Assessment.

Authors:

Ont Health Technol Assess Ser 2018 24;18(7):1-199. Epub 2018 Oct 24.

Background: Under usual care, people with an implantable cardioverter-defibrillator (ICD), cardiac resynchronization therapy with or without a defibrillator (CRT-D and CRT-P, respectively), or a permanent pacemaker have follow-up in-person clinic visits. Remote monitoring of these devices allows the transfer of the information stored in the device so that it can be accessed by the clinic personnel via a secured website.

Methods: We completed a health technology assessment, which included an evaluation of clinical benefits and harms, value for money, and patient preferences for remote monitoring of ICDs, CRTs, and permanent pacemakers plus clinic visits compared with clinic visits alone. Read More

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October 2018
3 Reads

Wireless Channel Modeling for Leadless Cardiac Pacemaker: Effects ofVentricular Blood Volume.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:3746-3749

In this paper, the effects of ventricular blood volume change on the cardiac wireless channel modeling at 2.4 GHz are presented for future multi-node leadless capsule pacemakers. Numerical electromagnetic simulations are implemented in the anatomical model of human body and experiments are done in a homogeneous liquid phantom. Read More

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A Multi-site Heart Pacing Study Using Wirelessly Powered Leadless Pacemakers.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:3434-3437

In this work, we report an energy-efficient switched capacitor based millimeter-scale pacemaker (5 mm ×7.5 mm) and a multi-receiver wireless energy transfer system operating at around 200 MHz, and use them in a proof-of-concept multi-site heart pacing study. Two pacemakers were placed on two beating Langendorff rodent heart models separately. Read More

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Techniques and Considerations in the Microfabrication of Parylene C Microelectromechanical Systems.

Micromachines (Basel) 2018 Aug 22;9(9). Epub 2018 Aug 22.

Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.

Parylene C is a promising material for constructing flexible, biocompatible and corrosion-resistant microelectromechanical systems (MEMS) devices. Historically, Parylene C has been employed as an encapsulation material for medical implants, such as stents and pacemakers, due to its strong barrier properties and biocompatibility. In the past few decades, the adaptation of planar microfabrication processes to thin film Parylene C has encouraged its use as an insulator, structural and substrate material for MEMS and other microelectronic devices. Read More

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August 2018
4 Reads

Organizational model and reactions to alerts in remote monitoring of cardiac implantable electronic devices: a survey from the Home Monitoring Expert Alliance (HMEA) project.

Clin Cardiol 2018 Nov 12. Epub 2018 Nov 12.

CardioArrhythmology Center, Rome, Italy.

Background: This survey aimed to describe the organizational workflow of cardiac implantable electronic devices (CIEDs) remote monitoring (RM) service in ordinary practice.

Methods: A questionnaire was designed for our purpose and completed by 49 sites participating to the Italian Home Monitoring Expert Alliance.

Results: A dedicated organizational model for RM was set up for 86% of centers. Read More

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November 2018
5 Reads

Analyses of risk factors and prognosis for new-onset atrial fibrillation in elderly patients after dual-chamber pacemaker implantation.

J Geriatr Cardiol 2018 Oct;15(10):628-633

Department of Cardiology, Beijing Geriatric Hospital, Beijing, China.

Objective: To retrospectively identify risk factors and the prognosis for new-onset atrial fibrillation (AF) after implantation of dual-chamber pacemakers in elderly patients.

Methods: Consecutive patients aged ≥ 65 years who underwent their first implantation of a dual-chamber permanent pacemaker in Beijing Anzhen Hospital from October 2013 to May 2016 were enrolled. Their complete programming and follow-up data were recorded. Read More

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October 2018
4 Reads

Assessment of a novel radiation reduction protocol for pediatric and adult congenital device implantation.

J Interv Card Electrophysiol 2018 Nov 9. Epub 2018 Nov 9.

Children's Hospital at Montefiore, 3415 Bainbridge Ave, Rosenthal 1 Pediatrics, Bronx, NY, 10467, USA.

Purpose: Device implantation requires fluoroscopic guidance, which carries inherent risks of ionizing radiation. We evaluated the impact of a low-dose fluoroscopic protocol on radiation exposure during device implantation.

Methods: All patients who underwent pacemaker or ICD implantation with new transvenous leads from July 2011 to January 2018 were included. Read More

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November 2018
9 Reads

Results of Ten-Year Follow-Up of Alcohol Septal Ablation in Patients with Obstructive Hypertrophic Cardiomyopathy.

Int J Angiol 2018 Dec 29;27(4):202-207. Epub 2018 Oct 29.

Sverdlovsk Regional Hospital No.1, Ekaterinburg, Russia.

This study looks at 10-year follow-up outcomes of alcohol septal ablation in patients with obstructive hypertrophic cardiomyopathy. Between 2000 and 2008, 40 patients with obstructive hypertrophic cardiomyopathy (27 males, 13 females) underwent alcohol septal ablation. The median follow-up period was 123 (2-179) months. Read More

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December 2018
3 Reads

Long-term performance of right ventricular pacing leads: risk factors associated with permanent right ventricular pacing threshold increase.

J Interv Card Electrophysiol 2018 Nov 6. Epub 2018 Nov 6.

Section of Electrophysiology, Division of Cardiology, Beijing Friendship Hospital Affiliated to Capital Medical University, No. 95 Yongan Road, Xi-cheng District, Beijing, 100050, China.

Purpose: Right ventricular pacing threshold (RVPT) may rise over time accompanied by the increased use of implantable cardiac pacemakers. However, risk factors for permanent RVPT increase are not fully clarified in patients without definite lead fracture and dislodgment. We aimed to evaluate the long-term performance of RV pacing leads and identify risk factors associated with the occurrence of permanent RVPT increase in this population. Read More

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November 2018
6 Reads

Thoracoscopic Patch Insulation for Phrenic Nerve Stimulation after Permanent Pacemaker Implantation.

Korean J Thorac Cardiovasc Surg 2018 Oct 5;51(5):363-366. Epub 2018 Oct 5.

Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine.

One of the complications of permanent pacemaker implantation is unintended phrenic nerve stimulation. A 15-year-old boy with a permanent pacemaker presented with chest discomfort due to synchronous chest wall contraction with pacing beats. Even after reprogramming of the pacemaker, diaphragmatic stimulation persisted. Read More

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October 2018

Cardiac and Vascular Injuries Sustained During Transvenous Lead Extraction.

Card Electrophysiol Clin 2018 Dec 5;10(4):651-657. Epub 2018 Oct 5.

University of Miami, Miller School of Medicine, 1295 Northwest 14 Street, Suite H, Miami, FL 33125, USA.

The rise in indications for cardiac implantable electronic devices has necessitated the development of tools for removal of the electrodes that connect the heart to these externally located pacemakers and defibrillators. After implant of a cardiac electrode, variable but progressive fibrous adhesion occurs. Removal of these adhesions can cause devastating complications with high risk of mortality if not treated surgically in a highly expeditious and appropriate manner. Read More

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December 2018
4 Reads

Leadless Permanent Pacing: A Single Centre Australian Experience.

Heart Lung Circ 2018 Oct 15. Epub 2018 Oct 15.

Department of Cardiology, The Prince Charles Hospital, Brisbane, Qld, Australia; Faculty of Medicine, University of Queensland, Brisbane, Qld, Australia.

Background: To describe the performance and clinical outcomes of consecutive patients having a leadless pacemaker (LP) implanted at a single institution.

Methods: Clinical data and device parameters were prospectively collected on all patients undergoing LP implantation from November 2015 to April 2018.

Results: A total of 79 patients (52 male), median age of 78 years, were included. Read More

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October 2018
2 Reads

Development of propagated discharge and behavioral arrest in hippocampal and amygdala-kindled animals.

Epilepsy Res 2018 Dec 24;148:78-89. Epub 2018 Oct 24.

Institute of Medical Science, University of Toronto, Toronto, Canada; Department of Pharmacology & Toxicology, University of Toronto, Toronto, Canada.

Patients with focal temporal lobe seizures often experience transient episodes of impaired awareness with behavioral arrest, but the precise mechanism remains unknown. The Network Inhibition Hypothesis attributes these deficits to a loss of cholinergic input to the cortex. This is presumed to result from increased activation of inhibitory regions that suppress subcortical arousal, giving rise to cortical delta wave activity. Read More

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December 2018

The modular cardiac rhythm management system: the EMPOWER leadless pacemaker and the EMBLEM subcutaneous ICD.

Herzschrittmacherther Elektrophysiol 2018 Dec 31;29(4):355-361. Epub 2018 Oct 31.

Boston Scientific Corporation, St. Paul, MN, USA.

Cardiac implantable electronic devices have been successfully treating patients with brady- and tachyarrhythmias for decades. However, there are still significant complications related to this therapy modality, many related to the transvenous lead. Paradigm-shifting technologies, such as the subcutaneous implantable cardioverter-defibrillator (S-ICD) and leadless cardiac pacemakers (LCP), have emerged to address these complications. Read More

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December 2018

Cardiac implantable electronic devices in adults with tetralogy of Fallot.

Heart 2018 Oct 30. Epub 2018 Oct 30.

Department of Cardiovascular Medicine, Mayo Clinic Rochester, Rochester, Minnesota, USA.

Background: Tachyarrhythmias and bradyarrhythmias affect 20%-50% of adult patients with tetralogy of Fallot (TOF) and some of these patients will require cardiac implantable electronic devices (CIED) such as pacemaker and/or internal cardioverter defibrillator.

Methods: The Mayo Adult Congenital Heart Disease database was queried for patients with repaired TOF and history of CIED implantation, 1990-2017. The study objectives were: (1) determine the occurrence of device-related complications defined as lead failure, lead recall, device infection and lead thrombus; and (2) determine the occurrence and risk factors for defibrillator shock. Read More

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October 2018
2 Reads
5.590 Impact Factor

[New Innovative Pacemaker Kevices - Leadless Pacemaker, Subcutaneous ICD].

Dtsch Med Wochenschr 2018 Nov 30;143(22):1617-1622. Epub 2018 Oct 30.

Conventional transvenous pacemaker and ICD-therapy is associated with significant lead- and pocket-related problems. Leadless pacemaker and subcutaneous ICD (S-ICD) therapies are innovative technologies, that avoid these complications. To date two leadless pacemaker systems have been implanted percutaneously for isolated right ventricular pacing, the Nanostim™ and the Micra™ device. Read More

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November 2018

[Troubleshooting in Patients with Implanted Pacemaker and ICD].

Dtsch Med Wochenschr 2018 Nov 30;143(22):1608-1616. Epub 2018 Oct 30.

Because of the growing number of implanted cardiac pacemakers and defibrillators and the ever-increasing complexity of these devices a fundamental knowledge of device malfunctions is of utmost importance even for the non-cardiology physician. Apart from hardware problems such as device infection, lead fracture or dislocation, basic knowledge of the pacemaker sensing and pacing algorithms is also necessary in order to judge the stimulation behavior in different clinical settings. With this respect, there are specific problems for antibradycardia and resynchronizing pacemakers as well as implantable defibrillators. Read More

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November 2018
7 Reads

[Guideline-Based Indications on Pacing and ICD-Therapy].

Dtsch Med Wochenschr 2018 Nov 30;143(22):1599-1607. Epub 2018 Oct 30.

In 2016, there were 77 293 pacemakers and 28 953 ICDs implanted in Germany. This makes pacemaker- and ICD-implantations part of the most frequently performed operations in Germany. This article addresses questions of correct indication and patient selection. Read More

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November 2018

The Symptoms and Clinical events associated with Automatic Reprogramming (SCARE) at replacement notification study.

Pacing Clin Electrophysiol 2018 Oct 30. Epub 2018 Oct 30.

Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.

Background: Pacemaker patients experience battery depletion that activates pacemaker's alert for replacement notification. Automatic reprogramming at replacement notification can result in loss of rate response and atrioventricular (AV) synchrony.

Objective: To determine if relevant symptoms or clinical events may be associated with automatic reprogramming at replacement notification. Read More

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October 2018
5 Reads

Provision of MR imaging for patients with cardiac implantable electronic devices (CIEDs): a single-center experience and national survey.

Ir J Med Sci 2018 Oct 27. Epub 2018 Oct 27.

Department of Radiology, Mater Private Hospital, Eccles St, Dublin, 7, Ireland.

Background: Patients with cardiac implantable electronic devices (CIEDs) were traditionally denied access to MR imaging due to safety concerns.

Aims: The aim of this study was to review a single-center experience of MR imaging at 1.5T of patients with CIEDs and survey national availability of this service. Read More

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October 2018
4 Reads

Radiofrequency Neurotomy for Facet Joint Pain in Patients with Permanent Pacemakers and Defibrillators.

Pain Med 2018 Oct 24. Epub 2018 Oct 24.

Emory Department of Orthopaedics, The Emory Spine Center, Atlanta, Georgia, USA.

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October 2018
1 Read

CIED Cybersecurity Risks in an Increasingly Connected World.

Circulation 2018 Sep;138(12):1181-1183

Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, MD.

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September 2018

Putting down the phone: the obsolescence of transtelephonic monitoring for pacemaker follow-up.

J Interv Card Electrophysiol 2018 Oct 23. Epub 2018 Oct 23.

Division of Cardiovascular Disease, Department of Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.

Purpose: The evolution of heart rhythm monitoring technology over the past few decades has seen a decline in the use and need of transtelephonic monitoring (TTM). We sought to establish a predicted date for the sun setting of TTM at our institution, as well as establish the current demographics of the patients still using this technology.

Methods: We retrospectively reviewed all patients with permanent pacemakers receiving routine device follow-up at our institution (Mayo Clinic-Rochester) between 2015 and 2018. Read More

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October 2018
5 Reads
1.550 Impact Factor

Suspicious index in Lyme carditis: Systematic review and proposed new risk score.

Clin Cardiol 2018 Oct 23. Epub 2018 Oct 23.

Division of Cardiology, Kingston Health Sciences Centre, Queen's University, Kingston, Ontario, Canada.

Background: Lyme carditis (LC), an early manifestation of Lyme disease that most commonly presents as high-degree atrioventricular block (AVB), usually resolves with antibiotic treatment. When LC is not identified as the cause of AVB, a permanent pacemaker may be inappropriately implanted in a reversible cardiac conduction disorder.

Hypothesis: The likelihood that a patient's high-degree AVB is caused by LC can be evaluated by clinical characteristics incorporated into a risk stratification tool. Read More

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October 2018
3 Reads