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A Time-Varying Equivalent Circuit Modeling and Measuring Approach for Intracardiac Communication in Leadless Pacemakers.
IEEE Trans Biomed Circuits Syst
August 2024
Intracardiac wireless communication is crucial for the development of multi-chamber leadless cardiac pacemakers (LCP). However, the time-varying characteristics of intracardiac channel pose major challenges. As such, mastering the dynamic conduction properties of the intracardiac channel and modeling the equivalent time-varying channel are imperative for realizing LCP multi-chamber pacing.
View Article and Find Full Text PDFLeadless Cardiac Pacing: New Horizons.
Cardiol Ther
March 2023
Royal Brompton and Harefield Hospitals, Guy's and St. Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1, UK.
Since the introduction of transvenous cardiac pacing leads, pacemaker system design has remained similar for several decades. Progressive miniaturisation of electronic circuitry and batteries has enabled a smaller, single pacing unit comprising the intracardiac electrodes, generator and computer. This review explores the development of leadless pacing, the clinical trials comparing leadless to transvenous pacing in addition to the future developments of multi-chamber leadless pacing.
View Article and Find Full Text PDFConductive intracardiac communication (CIC) has been demonstrated as a promising concept for the synchronization of multi-chamber leadless cardiac pacemakers (LLPMs). To meet the 2-5 μW power budget of a LLPM, highly specialized CIC-transceivers, which make optimal use of the cardiac communication channel, need to be developed. However, a detailed investigation of the optimal communication parameters for CIC-based LLPM synchronization is missing so far.
View Article and Find Full Text PDFRole of Transesophageal Echocardiography in the Diagnosis of Multi-chamber Intracardiac Thrombosis During Liver Transplantation: A Case Series.
J Crit Care Med (Targu Mures)
July 2020
University of Washington, Seattle, WA, USA.
Intra-cardiac thrombosis is one of the most devastating complications during liver transplantation. In the majority of cases, ICT, followed by massive pulmonary embolism, is commonly occurring shortly after liver graft reperfusion, but it has been reported to occur at any stage of the surgery. We present a series of 3 cases of intra-cardiac thrombosis during orthotopic liver transplantation surgery, including a case of four-chamber intra-cardiac clot formation during the pre-anhepatic stage.
View Article and Find Full Text PDFMultichamber intracardiac thrombi successfully treated with apixaban in a patient with dilated cardiomyopathy and sinus rhythm.
Pol Arch Intern Med
November 2020
Department of Internal Medicine, Józef Struś Hospital, Poznań, Poland
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