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Modular Leadless Pacing: A Case Series of Leadless Pacemaker Upgrades.
JACC Clin Electrophysiol
December 2024
Division of Cardiology, Department of Medicine, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA. Electronic address:
Outcomes of concurrent and delayed leadless pacemaker implantation following extraction of infected cardiovascular implantable electronic device.
J Interv Card Electrophysiol
December 2024
Cardiac Electrophysiology, Boston Medical Center, Boston, MA, USA.
Article Synopsis
- The study explores optimal reimplantation strategies after the removal of infected cardiovascular implantable electronic devices (CIEDs), highlighting the potential advantages of leadless pacemakers (LPs) due to their lower infection risk.
- A literature review included 22 relevant studies, covering 657 patients who had lead removal followed by LP implantation, with 44.9% receiving LPs concurrently during the procedure and minimal complications reported.
- The findings suggest that both concurrent and delayed LP implantation is safe, with low rates of reinfection and complications, positioning LPs as a viable option for patients needing temporary pacing before further treatments.
Introducing a Novel Pacemaker-Mediated Arrhythmia: The Pseudo-RNRVAS Arising From Atrial Capture Challenges.
Ann Noninvasive Electrocardiol
November 2024
Ankara Guven Hospital, Ankara, Turkey.
Article Synopsis
- The study explores a new type of heart rhythm issue called pseudo-RNRVAS that occurs when atrial stimulation stops while there is continued communication between the ventricles and atrium during certain heart phases.
- Researchers investigated 21 patients with cardiac devices, finding that 20 experienced pseudo-RNRVAS, particularly at lower heart rates and specific timing intervals after losing atrial capture.
- The findings suggest that pseudo-RNRVAS can happen without the usual risk factors and are more likely in scenarios that increase atrial pacing, especially soon after pacemaker implantation, indicating a possible link to pacemaker syndrome and heart failure risk.
Human-heart-model for hardware-in-the-loop testing of pacemakers.
Comput Biol Med
September 2024
Universität Siegen, Hölderlinstr. 3, Siegen, 57076, North Rhine-Westphalia, Germany. Electronic address:
To guarantee the safety of medical devices, including embedded systems, it is essential to consider both electronic components and the natural environment during validation and verification. In contrast to prior research, we present a hardware-in-the-loop environment that connects a real medical system to a biological model in real time for validation, including the modeling of the mechanical component of the heart valves in addition to the modeling of the electrical conduction and electrical stimulation of the heart chambers. Our model accounts for the dynamic adaptation of the temporal processes in the heart chambers to the pacing frequency of the individual chambers as a function of the action potential.
View Article and Find Full Text PDFPacemaker syndrome: Thinking beyond atrioventricular dyssynchrony.
HeartRhythm Case Rep
April 2024
Missouri Baptist Medical Center, St. Louis, Missouri.
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