Explanipedia

Device longevity of a leadless pacemaker family Open

Miguel A. Leal, Todd Sheldon, Keelia Escalante, Mikayle A. Holm, Michelle Galarneau , et al. · 2025

Modeling of the Micra leadless pacemakers projected meaningful improvements in device longevity and an increase in the number of patients served with a single device.

Atrioventricular Synchrony Algorithm Modeling of a Leadless Pacemaker Family: A Virtual Patient Analysis Open

Miguel A. Leal, Todd Sheldon, Keelia Escalante, Mikayle A. Holm, Michelle Galarneau , et al. · 2025

Impact of pacing mode and different echocardiographic parameters on cardiac output (PADIAC) Open

Hermann Blessberger, Juergen Kammler, Joerg Kellermair, Daniel Kiblboeck, Alexander Nahler , et al. · 2023

Introduction The extent of the hemodynamic benefit from AV-synchronous pacing in patients with sinus rhythm and AV block is not completely understood. Thus, we systematically investigated the association of an array of echocardiographic an…

Correlation between AV synchrony and device collected AM‐VP sequence counter in atrioventricular synchronous leadless pacemakers: A real‐world assessment Open

Christophe Garweg, Jonathan P. Piccini, Laurence M. Epstein, Camille Frazier‐Mills, Larry A. Chinitz , et al. · 2022

Introduction Micra atrioventricular (AV) provides leadless atrioventricular synchronous pacing by sensing atrial contraction (A4 signal). Real‐world operation and reliability of AV synchrony (AVS) assessment using device data have not been…

Ambulatory atrioventricular synchronous pacing over time using a leadless ventricular pacemaker: Primary results from the AccelAV study Open

Larry A. Chinitz, Mikhael F. El‐Chami, Venkata Sagi, Héctor H. García, F. Kevin Hackett , et al. · 2022

Accelerometer-based mechanical atrial sensing provided by a leadless pacemaker implanted in the right ventricle significantly improves quality of life in a select cohort of patients with AV block and normal sinus function. AVS remained sta…

Behavior of AV synchrony pacing mode in a leadless pacemaker during variable AV conduction and arrhythmias Open

Christophe Garweg, Surinder Kaur Khelae, Joseph Yat Sun Chan, Larry A. Chinitz, Philippe Ritter , et al. · 2021

Introduction MARVEL 2 assessed the efficacy of mechanical atrial sensing by a ventricular leadless pacemaker, enabling a VDD pacing mode. The behavior of the enhanced MARVEL 2 algorithm during variable atrio‐ventricular conduction (AVC) an…

Predictors of atrial mechanical sensing and atrioventricular synchrony with a leadless ventricular pacemaker: Results from the MARVEL 2 Study Open

Christophe Garweg, Surinder Kaur Khelae, Clemens Steinwender, Joseph Yat Sun Chan, Philippe Ritter , et al. · 2020

Atrioventricular Synchronous Pacing Using a Leadless Ventricular Pacemaker: Primary Results From the MARVEL 2 Study Open

Larry A. Chinitz, Surinder Kaur Khelae, Christophe Garweg, Joseph Chan, Philippe Ritter , et al. · 2019

Atrioventricular Synchronous Pacing Using a Leadless Ventricular Pacemaker Open

Clemens Steinwender, Surinder Kaur Khelae, Christophe Garweg, Joseph Yat Sun Chan, Philippe Ritter , et al. · 2019

Accelerometer-based atrial sensing with an automated, enhanced algorithm significantly improved AV synchrony in patients with sinus rhythm and AV block who were implanted with a leadless ventricular pacemaker. (Micra Atrial Tracking Using …

Novel Method for Assessment of His Bundle Pacing Morphology Using Near Field and Far Field Device Electrograms Open

Aditya Saini, Nicholas Serafini, Shawn Campbell, William B. Waugh, Ryan Zimberg , et al. · 2019

Background: The 12-lead ECG is considered the gold standard to differentiate between selective (S), nonselective (NS) His bundle pacing (HBP), and right ventricular septal capture in routine clinical practice. We sought to assess the utili…

Response to atrial arrhythmias in an atrioventricular synchronous ventricular leadless pacemaker: A case report in a paroxysmal atrial fibrillation patient Open

Christophe Garweg, Todd Sheldon, Larry A. Chinitz, Philippe Ritter, Clemens Steinwender , et al. · 2018

sponsorship: Abbott Laboratories, Boston Scientific Corporation, Pfizer, Biosense Webster, Medtronic, Biotronik|NCT03157297

Accelerometer-based atrioventricular synchronous pacing with a ventricular leadless pacemaker: Results from the Micra atrioventricular feasibility studies Open

Larry A. Chinitz, Philippe Ritter, Surinder Kaur Khelae, Saverio Iacopino, Christophe Garweg , et al. · 2018

Accelerometer-based atrial sensing is feasible and significantly improves AVS in patients with AV block and a single-chamber leadless pacemaker implanted in the right ventricle.

39Sensing of atrial contraction by an accelerometer within a ventricular leadless pacemaker Open

Clemens Steinwender, Lluı́s Mont, Gábor Zoltán Duray, Nicolas Clémenty, Larry A. Chinitz , et al. · 2018

136-38: Physical activity detection of a total intracardiac leadless pacemaker with 3-axis accelerometer Open

Zsolt Bári, Áron Sztaniszláv, Melinda Jaszko, Todd Sheldon, Dwight Reynolds , et al. · 2016

Background: The Micra Trans-Catheter Pacemaker (TCP) is implanted in the right ventricle and incorporates a 3-axis accelerometer to detect patient (pt) activity, and filter cardiac motion. Purpose: To describe the performance and stability…

59-05: Accelerometer based Rate Adaptive Pacing in Micra™ Transcatheter Pacemaker Open

Gábor Zoltán Duray, Razali Omar, Kurt Stromberg, Todd Sheldon, Kyoko Soejima , et al. · 2016

Introduction: The Micra transcatheter pacemaker has similar functionality to conventional transvenous VVIR pacing systems despite its small size (0.8 cc) and intracardiac location. It provides rate responsive (RR) pacing using a programmab…

136-41: Initial Real World Performance of Micra™ Leadless Transcatheter Pacemaker Anticipates Outstanding Battery Longevity Open

Clemens Steinwender, Philippe Ritter, Gábor Zoltán Duray, Razali Omar, Shu Zhang , et al. · 2016

Introduction: Battery longevity is especially important for leadless pacemakers designed to be endocardially abandoned at end-of-life. The Micra transcatheter pacemaker incorporates multiple features to prolong battery life. These include …

Early Performance and Safety of the Micra Transcatheter Pacemaker in Pigs Open

M. Bonner, Michael D. Eggen, Tarek Haddad, Todd Sheldon, Eric Williams · 2015

Overall, despite the 10-fold size reduction of the Micra TPS, it appears to perform similarly and have a similar safety profile to a traditional pacemaker system.

Early performance of a miniaturized leadless cardiac pacemaker: the Micra Transcatheter Pacing Study Open

Philippe Ritter, Gábor Zoltán Duray, Clemens Steinwender, Kyoko Soejima, Razali Omar , et al. · 2015

ClinicalTrials.gov ID NCT02004873.

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