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Leadless cardiac pacemaker

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https://www.readbyqxmd.com/read/29462311/device-orientation-of-a-leadless-pacemaker-and-subcutaneous-implantable-cardioverter-defibrillator-in-canine-and-human-subjects-and-the-effect-on-intrabody-communication
#1
Anne-Floor B E Quast, Fleur V Y Tjong, Brendan E Koop, Arthur A M Wilde, Reinoud E Knops, Martin C Burke
Aims: The development of communicating modular cardiac rhythm management systems relies on effective intrabody communication between a subcutaneous implantable cardioverter-defibrillator (S-ICD) and a leadless pacemaker (LP), using conducted communication. Communication success is affected by the LP and S-ICD orientation. This study is designed to evaluate the orientation of the LP and S-ICD in canine subjects and measure success and threshold of intrabody communication. To gain more human insights, we will explore device orientation in LP and S-ICD patients...
February 14, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29428139/leadless-pacemakers-state-of-the-art-and-future-perspectives
#2
REVIEW
Domenico G Della Rocca, Carola Gianni, Luigi Di Biase, Andrea Natale, Amin Al-Ahmad
Leadless pacemaker therapy is a new technology that aims at avoiding lead- and pocket-related complications of conventional transvenous and epicardial pacing. To date, 2 self-contained leadless pacemakers for right ventricular pacing have been clinically available: the Nanostim Leadless Pacemaker System and the Micra Transcatheter Pacing System. Additionally, a new multicomponent leadless pacemaker for endocardial left ventricular pacing has been proposed as an alternative choice for cardiac resynchronization therapy...
March 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29365073/primary-safety-results-from-the-leadless-observational-study
#3
Johannes Sperzel, Pascal Defaye, Peter-Paul Delnoy, Juan Jose Garcia Guerrero, Reinoud E Knops, Claudio Tondo, Jean-Claude Deharo, Tom Wong, Petr Neuzil
Aims: A prospective, single-arm, multicentre, post-market study was conducted to confirm the short-term safety of the Nanostim™ leadless pacemaker (LP). In this study, we report the primary results of the LEADLESS Observational Study. Methods and results: Subjects meeting VVIR pacemaker indications were enrolled and followed up after successful LP implantation, prior to discharge and post-implantation at 90 days, 180 days, and every 6 months thereafter for the assessment of adverse events...
January 19, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29346109/endocardial-energy-harvesting-by-electromagnetic-induction
#4
Adrian Zurbuchen, Andreas Haeberlin, Lukas Bereuter, Alois Pfenniger, Simon Bosshard, Micha Kernen, Paul Philipp Heinisch, Juerg Fuhrer, Rolf Vogel
OBJECTIVE: cardiac pacemakers require regular medical follow-ups to ensure proper functioning. However, device replacements due to battery depletion are common and account for ∼25% of all implantation procedures. Furthermore, conventional pacemakers require pacemaker leads which are prone to fractures, dislocations or isolation defects. The ensuing surgical interventions increase risks for the patients and costs that need to be avoided. METHODS: in this study, we present a method to harvest energy from endocardial heart motions...
February 2018: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/29335839/successful-replacement-of-the-longest-worldwide-in-situ-nanostim-leadless-cardiac%C3%A2-pacemaker-for-a-micra-transcatheter-pacing-system
#5
Niek E G Beurskens, Fleur V Y Tjong, Anne-Floor B E Quast, Reinoud E Knops
No abstract text is available yet for this article.
January 15, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29300871/leadless-pacemaker-implantation-in-achondroplastic-dwarfism-and-recurrent-cardiac-implantable-electronic-device-infections-a-case-report
#6
Giovanni Morani, Bruna Bolzan, Gianluca Borio, Luca Tomasi, Flavio Luciano Ribichini
No abstract text is available yet for this article.
December 29, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29274799/leadless-pacing-in-a-young-patient-with-cardioinhibitory-vasovagal-syncope
#7
Valentina De Regibus, Darragh Moran, Gian Battista Chierchia, Pedro Brugada, Carlo de Asmundis
Vasovagal syncope is characterized by vasodilatation and/or bradycardia and thereby a fall in arterial BP and global cerebral perfusion in response to a trigger. Although it is a benign condition, patients with frequent and traumatic episodes need treatment in order to improve quality of life. We describe the case of a 17-years-old boy suffering from cardioinhibitory syncope. At the end of a complete negative cardiac and neurological examination, a loop recorder was implanted. During the subsequent follow-up the ILR documented a 9-s pause...
December 21, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29250229/leadless-pacemakers-implant-explant-and-long-term-safety-and-efficacy-data
#8
REVIEW
Krishna Kancharla, Abhishek J Deshmukh, Paul A Friedman
Implantable cardiac pacemakers have seen remarkable progress in the last sixty years and remained as cornerstone therapy for symptomatic bradycardia. Despite this progress the current day traditional transvenous implanted pacemaker systems are limited by the need for a surgically created pocket for the generator, indwelling leads in the vascular system and lastly passage through the tricuspid valve. A majority of the implant and explant related complications are due to the surgical pocket and indwelling leads...
August 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29221628/recommendations-for-the-implantation-of-leadless-pacemakers-from-the-french-working-group-on-cardiac-pacing-and-electrophysiology-of-the-french-society-of-cardiology
#9
Pascal Defaye, Didier Klug, Frederic Anselme, Daniel Gras, Jean-Sylvain Hermida, Olivier Piot, Christine Alonso, Laurent Fauchier, Estelle Gandjbakhch, Eloi Marijon, Philippe Maury, Jérôme Taieb, Serge Boveda, Nicolas Sadoul
No abstract text is available yet for this article.
January 2018: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29194683/leadless-pacemaker-extraction-from-a-single-center-perspective
#10
Elkin González Villegas, Omar Al Razzo, Jorge Silvestre García, José Mesa García
BACKGROUND: Leadless pacemaker can be considered as a technical revolution in cardiac pacing devices, with clear advantages over conventional pacemakers in overcoming all lead related complications. However, the management of these devices once they reach the end of life of the battery is still controversial. In the next years there will be an increase in the need to define a clear strategy in the management of leadless PM once they reach their EOL. Safe extraction of these devices will define in a great manner this strategy METHODS: We performed the extraction of three functioning Nanostim leadless pacemaker prophylactically in two females and one male patients part of the Nanostim battery depletion field action recommendation...
November 30, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29189109/monocentric-experience-of-leadless-pacing-with-focus-on-challenging-cases-for-conventional-pacemaker
#11
Christophe Garweg, Joris Ector, Gabor Voros, Adèle Greyling, Bert Vandenberk, Stefaan Foulon, Rik Willems
AIM: Leadless cardiac pacemaker has been developed to reduce complications related to cardiac pacing and is considered as an alternative to conventional pacemaker although safety and efficacy data in clinical practice are limited. The purpose of this study was to investigate the safety and efficacy profile of Micra Transcatheter Pacing System (TPS) used in daily clinical activity with a focus on challenging cases for conventional pacing. METHODS: A total of 66 patients (46 men, 79...
November 30, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/29110935/successful-percutaneous-retrieval-of-a-leadless-pacemaker-due-to-an-acute-rise-in-pacing-threshold
#12
Ngai-Yin Chan, Ho-Chuen Yuen, Ngai-Shing Mok
Leadless cardiac pacemakers (LCP) have become available recently. Both its acute and long-term performance in a large population of patients remain to be tested. Subacute rise in pacing threshold has been reported as an uncommon complication. On the other hand, the retrieval technique for LCP with passive fixation mechanism has not been previously described in details. Herein we report a newly recognized complication of an acute rise in pacing threshold very soon after implantation of an LCP without radiographic dislodgement...
October 28, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29045345/leadless-cardiac-pacemakers-present-and-the-future
#13
Derek S Chew, Vikas Kuriachan
PURPOSE OF REVIEW: Pacing technology for many decades has been composed of a generator attached to leads that are usually transvenous. Recently, leadless pacemakers have been studied in clinical settings and now available for use in many countries. This includes the single-component Nanostim Leadless Cardiac Pacemaker and Micra Transcatheter Pacing System, as well as the multicomponent Wireless Stimulation Endocardial system. RECENT FINDINGS: Clinical studies in single-component leadless pacing technology has shown that they can be successfully implanted with minimal complications...
October 17, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29021417/miniaturized-leadless-cardiac-pacemakers%C3%A3-can-they-overcome-the-problems-with-transvenous-pacing-systems
#14
EDITORIAL
Yasushi Oginosawa, Ritsuko Kohno, Hisaharu Ohe, Haruhiko Abe
No abstract text is available yet for this article.
October 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29018521/end-of-life-management-of-leadless-cardiac-pacemaker-therapy
#15
Niek Eg Beurskens, Fleur Vy Tjong, Reinoud E Knops
The clinically available leadless pacemakers for patients with a single-chamber pacing indication have shown to be safe and effective. However, the optimal end-of-life strategy of this novel technique is undefined. Suggested strategies comprise of (a) placing an additional leadless device adjacent to the leadless pacemaker, or (b) retrieving the non-functioning leadless pacemaker and subsequently implanting a new device. Although initial studies demonstrate promising results, early experience of acute and mid-term retrieval feasibility and safety remains mixed...
August 2017: Arrhythmia & Electrophysiology Review
https://www.readbyqxmd.com/read/28965962/spanish-pacemaker-registry-14th-official-report-of-the-spanish-society-of-cardiology-working-group-on-cardiac-pacing-2016
#16
Óscar Cano Pérez, Marta Pombo Jiménez, María Luisa Fidalgo Andrés, Diego Lorente Carreño, Raúl Coma Samartín
INTRODUCTION AND OBJECTIVES: This report describes the results of analysis of implanted pacemakers reported to the Spanish Pacemaker Registry. METHODS: The analysis was based on information provided by the European Pacemaker Identification Card. RESULTS: Information was received from 115 hospitals, with a total of 12 697 cards, representing 32.3% of the estimated activity. Use of conventional and resynchronization pacemakers was 818 and 79 units per million inhabitants, respectively...
December 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28957879/perioperative-management-of-cardiac-rhythm-assist-devices-in-ambulatory-surgery-and-nonoperating-room-anesthesia
#17
Lovkesh Arora, Chakradhari Inampudi
PURPOSE OF REVIEW: Patients with cardiac implantable electronic devices (CIEDs) frequently undergo various surgical procedures and in the past perioperative management involved only placing magnet over the device. New programming features, development of implantable cardiac defibrillator (ICD), cardiac resynchronization therapy, and increasing complexity of the operating room equipment have led to new sources of electromagnetic interference (EMI). A comprehensive understanding of the CIED is necessary to provide a timely and optimal care to the patients...
December 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28826669/leadless-pacemaker-performance-and-complications
#18
REVIEW
Justin Z Lee, Siva K Mulpuru, Win K Shen
Traditional transvenous cardiac pacemakers have pitfalls due to lead- and device pocket-related complications. Leadless pacemakers were developed and introduced into clinical practice to overcome the shortcomings of traditional transvenous pacemakers. In this review, we provide a description of leadless pacemaker devices, and summarize existing data on device performance. We also describe associated complications during implantation procedure as well as during the follow-up period. Although current generation devices are limited to single-chamber pacing, future generation devices are expected to progress to multi-chamber multi-component pacing systems, and eventually to battery-less devices...
August 9, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28733677/inductively-powered-wireless-pacing-via-a-miniature-pacemaker-and-remote-stimulation-control-system
#19
Parinaz Abiri, Ahmad Abiri, René R Sevag Packard, Yichen Ding, Alireza Yousefi, Jianguo Ma, Malcolm Bersohn, Kim-Lien Nguyen, Dejan Markovic, Shervin Moloudi, Tzung K Hsiai
Pacemakers have existed for decades as a means to restore cardiac electrical rhythms. However, lead-related complications have remained a clinical challenge. While market-released leadless devices have addressed some of the issues, their pacer-integrated batteries cause new health risks and functional limitations. Inductive power transfer enables wireless powering of bioelectronic devices; however, Specific Absorption Rate and size limitations reduce power efficiency for biomedical applications. We designed a remote-controlled system in which power requirements were significantly reduced via intermittent power transfer to control stimulation intervals...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28707515/successful-repositioning-of-leadless-cardiac-pacemaker-during-open-heart-surgery
#20
Christophe Garweg, Joris Ector, Wouter Oosterlinck, Rik Willems, Paul Herijgers
No abstract text is available yet for this article.
July 14, 2017: Acta Cardiologica
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