keyword
MENU ▼
Read by QxMD icon Read
search

Leadless

keyword
https://www.readbyqxmd.com/read/28765766/asystole-in-focal-epilepsy-complicating-a-traumatic-subdural-hematoma
#1
Yuk-Ming Lau, Chi-Hung Lo, Kathy Lai-Fun Lee, Chu-Pak Lau
Ictal asystole due to sinus node suppression is a cause of sudden unexplained death in epilepsy. Here, for the first time, we describe a complete atrioventricular nodal block in a patient with non-compressive traumatic subdural hematoma, who developed ictal asystole as a delayed presentation. A leadless VVI pacemaker (ventricular paced, ventricular sensed, and pacing inhibited in response to a sensed beat) was implanted as a preventive measure against seizure-related heart block.
August 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28754393/totally-leadless-dual-device-implantation-for-combined-spontaneous-ventricular-tachycardia-defibrillation-and-pacemaker-function-a-first-report
#2
Fozia Zahir Ahmed, Colin Cunnington, Manish Motwani, Amir Masood Zaidi
Subcutaneous implantable cardioverter defibrillators (S-ICDs) provide effective defibrillation, while also reducing the risk of long-term lead problems. However, S-ICDs do not offer bradycardia or antitachycardia pacing and therefore use has been limited. Combined implantation of an S-ICD with a leadless pacemaker (LP) has been proposed to overcome this limitation. Although a handful of combined S-ICD/LP implantations have been reported for Nanostim (St Jude Medical, St Paul, MN) as well as Micra LP (Medtronic, Minneapolis, MN) systems, none have documented delivery of appropriate shock therapies for spontaneous ventricular tachycardia...
August 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28733849/novel-pacing-strategies-for-heart-failure-management
#3
REVIEW
Jordan S Leyton-Mange, Theofanie Mela
Cardiac resynchronization therapy has emerged as the gold standard for heart failure patients with left ventricular systolic dysfunction and electrical dyssynchrony from an intrinsic intraventricular conduction delay or right ventricular pacing. However, the limits imposed by the coronary sinus venous anatomy restrict the applicability of the technology for many potential recipients. Furthermore, conventional resynchronization, by virtue of utilizing a single site of epicardial origin for left ventricular activation, is non-physiological...
August 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28733765/close-up-of-a-leadless-pacemaker-3%C3%A2-days-after-implantation
#4
Ekrem Ücer, Philip Irrgang, Sabine Fredersdorf, Lars Maier
No abstract text is available yet for this article.
September 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28733677/inductively-powered-wireless-pacing-via-a-miniature-pacemaker-and-remote-stimulation-control-system
#5
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/28713024/to-retrieve-or-not-to-retrieve-system-revisions-with-the-micra-transcatheter-pacemaker
#6
Eric Grubman, Philippe Ritter, Christopher R Ellis, Michael Giocondo, Ralph Augostini, Petr Neuzil, Bipin Ravindran, Anshul M Patel, Pamela Omdahl, Karen Pieper, Kurt Stromberg, J Harrison Hudnall, Dwight Reynolds
BACKGROUND: Early experience with leadless pacemakers has shown a low rate of complications. However, little is known about system revision in patients with these devices. OBJECTIVE: To describe the system revision experience with the Micra Transcatheter Pacing System (TPS). METHODS: Implanted patients from the Micra TPS and the Micra Continued Access study (N = 989) were analyzed and compared to 2667 patients with transvenous pacemakers (TVP)...
July 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28707515/successful-repositioning-of-leadless-cardiac-pacemaker-during-open-heart-surgery
#7
Christophe Garweg, Joris Ector, Wouter Oosterlinck, Rik Willems, Paul Herijgers
No abstract text is available yet for this article.
July 14, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28707043/leadless-pacing-current-state-and-future-direction
#8
REVIEW
Matthias Merkel, Philipp Grotherr, Andrea Radzewitz, Claus Schmitt
Leadless pacing is now an established alternative to conventional pacing with subcutaneous pocket and transvenous lead for patients with class I or II single-chamber pacing indication. Available 12-month follow-up data shows a 48% fewer major complication rate in patients with Micra™ compared to a historical control group in a nonrandomized study [1]. There is one system with Food and Drug Administration (FDA) approval and two with the Communauté Européenne (CE) mark. The OPS code for the implantation is 8-83d...
July 13, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28705736/a-worldwide-experience-of-the-management-of-battery-failures-and-chronic-device-retrieval-of-the-nanostim-leadless-pacemaker
#9
Dhanunjaya Lakkireddy, Reinoud Knops, Brett Atwater, Petr Neuzil, John Ip, Elkin Gonzalez, Paul Friedman, Pascal Defaye, Derek Exner, Kazutaka Aonuma, Rahul Doshi, Johannes Sperzel, Vivek Reddy
BACKGROUND: The Nanostim leadless pacemaker (LP) met the primary endpoints in an investigational device exemption trial, and was shown to be fully retrievable percutaneously. In October 2016, St Jude Medical issued a worldwide alert of a battery malfunction that caused lost pacing output and LP communication. OBJECTIVE: To report the battery failure mechanism and incidence and the worldwide patient management, including device retrieval experiences. METHODS: The affected LP battery is a custom lithium-carbon monofluoride cell...
July 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28696087/leadless-technology-a-new-paradigm-for-cardiac-pacing
#10
Giulio Zucchelli, Valentina Barletta, Maria G Bongiorni
Leadless pacemaker (LP) technology was recently developed and introduced for clinical purpose as an alternative to traditional systems in order to reduce leads and pocket-related complications. Currently, two self-contained right ventricular pacemaker implanted by using a femoral percutaneous approach have been developed and initial results seem promising. Although the clinical use is still limited to the right ventricular pacing, the LP currently represents a valid and alternative solution in several settings, when the standard pacemaker cannot be used or its use is associated with higher risk of complications...
July 10, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28666317/right-ventricular-and-tricuspid-valve-function-in-patients-chronically-implanted-with-leadless-pacemakers
#11
Erwan Salaun, Lilith Tovmassian, Blandine Simonnet, Roch Giorgi, Frédéric Franceschi, Linda Koutbi-Franceschi, Jérôme Hourdain, Gilbert Habib, Jean-Claude Deharo
Aims: Leadless cardiac pacing has recently been proposed as alternative to conventional right ventricular (RV) pacing. With this approach, devices are directly screwed or fixed with tines in the RV wall, but the possible consequences on RV and tricuspid valve (TV) structure and function remain unknown. We thus conducted a study to evaluate this potential impact in chronically implanted patients. Methods and results: Repeated echocardiographic studies were performed prior to implantation, at discharge, and 2 months thereafter on all consecutive patients implanted with a leadless pacemaker at our centre between October 2014 and end-December 2015...
June 28, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28627451/leadless-pacemaker-surrounded-by-three-valvular-prostheses
#12
Serge Boveda, Philippe Durand, Stéphane Combes, Claude-Jean Mariottini
No abstract text is available yet for this article.
June 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28606633/leadless-pacing-meets-the-real-world-the-maturation-of-clinical-evidence-behind-a-miniaturized-pacemaker
#13
EDITORIAL
Mark W Preminger, Suneet Mittal
No abstract text is available yet for this article.
June 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28595994/-news-techniques-of-pacing-in-congenital-heart-diseases
#14
REVIEW
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 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28594061/successful-implantation-of-a-leadless-pacemaker-in-a-patient-with-an-ivc-filter
#15
Jodie Franzil, Jason Rytlewski
No abstract text is available yet for this article.
June 8, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28583688/neointimal-fibrotic-lead-encapsulation-clinical-challenges-and-demands-for-implantable-cardiac-electronic-devices
#16
REVIEW
Jonas Keiler, Marko Schulze, Martina Sombetzki, Thomas Heller, Tina Tischer, Niels Grabow, Andreas Wree, Dietmar Bänsch
Every tenth patient with a cardiac pacemaker or implantable cardioverter-defibrillator implanted is expected to have at least one lead problem in his lifetime. However, transvenous leads are often difficult to remove due to thrombotic obstruction or extensive neointimal fibrotic ingrowth. Despite its clinical significance, knowledge on lead-induced vascular fibrosis and neointimal lead encapsulation is sparse. Although leadless pacemakers are already available, their clinical operating range is limited. Therefore, lead/tissue interactions must be further improved in order to improve lead removals in particular...
July 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28574852/a-novel-leadless-dielectrophoresis-chip-with-dot-matrix-electrodes-for-patterning-nanowires
#17
Linbo Liu, Ke Chen, Di Huang, Xin Wang, Nan Xiang, Zhonghua Ni
In this paper, we present a novel 'leadless' dielectrophoresis chip with dot matrix electrodes (LDME-DEP chip) fabricated by stacking three different functional layers. Our LDME-DEP chip excels mainly in two aspects: we for the first time applied the technique of separating the lead and the electrode pattern into two different layers to patterning nanowires which achieves continuous-area manipulation of nanowires without interference from the lead; the use of dot matrix electrodes makes the manipulation more flexible...
June 2, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28572238/lead-or-be-led-an-update-on-leadless-cardiac-devices-for-general-physicians
#18
David E Ward
No abstract text is available yet for this article.
June 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28566657/performance-of-leadless-pacemaker-in-japanese-patients-vs-rest-of-the-world%C3%A3-results-from-a-global-clinical-trial
#19
Kyoko Soejima, Taku Asano, Toshiyuki Ishikawa, Kengo Kusano, Toshiaki Sato, Hideo Okamura, Katsumi Matsumoto, Wataru Taguchi, Kurt Stromberg, Jeff Lande, Youichi Kobayashi
BACKGROUND: A global study designed to demonstrate the safety and efficacy of a transcatheter pacing system included 38 Japanese patients enrolled at 4 sites. Subgroup analysis to evaluate the performance of the leadless intracardiac transcatheter pacing system in Japanese patients was performed.Methods and Results:Safety and efficacy outcomes, patient and implant procedure characteristics, and patient and physician acceptability from the Japanese population were compared with those from outside Japan...
May 30, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28529181/leadless-cardiac-pacemakers-current-status-of-a-modern-approach-in-pacing
#20
REVIEW
Skevos Sideris, Stefanos Archontakis, Polychronis Dilaveris, Konstantinos A Gatzoulis, Konstantinos Trachanas, Ilias Sotiropoulos, Petros Arsenos, Dimitrios Tousoulis, Ioannis Kallikazaros
Since the first transvenous pacemaker implantation, that took place 50 years ago, important progress has been achieved in pacing technology. Consequently, today, more than 700,000 pacemakers are implanted annually worldwide. However, conventional pacemakers' implantation carries a non-negligible risk of periprocedural and long-term complications associated with the transvenous leads and pacemaker pocket. Recently, Leadless Pacing Systems have emerged as a therapeutic alternative to conventional pacing systems providing therapy for patients with bradyarrhythmias, while eliminating potential transvenous leads and pacemaker pocket related complications...
May 18, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
keyword
keyword
98953
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"