5 results on '"Nicolas Clementy"'
Search Results
2. Implantation of a leadless pacemaker in young adults
- Author
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Marc Strik, Nicolas Clementy, Pierre Mondoly, Romain Eschalier, F. Daniel Ramirez, Hugo‐Pierre Racine, Michel Haïssaguerre, Philippe Ritter, Sylvain Ploux, and Pierre Bordachar
- Subjects
Physiology (medical) ,Cardiology and Cardiovascular Medicine - Abstract
Leadless pacing has emerged as an alternative to conventional transvenous pacemakers to mitigate the risks of pocket- and lead-related complications but its use remains controversial in young adults mostly because experience in this patient population is limited. We sought to examine the feasibility and safety of implanting leadless single chamber pacemakers in young adults.This multicenter, retrospective, observational study sought to evaluate the safety, efficacy, and electrical performance of the Micra VR Transcatheter Pacemaker System (Medtronic) in patients between 18 and 40 years who underwent implantation of a leadless pacemaker for any indication at the university medical centers of Bordeaux, Clermont-Ferrand, Toulouse, and Tours (France), between 2015 and 2021. The primary safety endpoint was freedom from system-related or procedure-related major complications at 6 months. The primary efficacy endpoint was the combination of a low (≤2 V) and stable (increase within 1.5 V) pacing capture threshold at 6 months.Leadless pacemaker implantation was successful in all 35 patients. At six months, safety endpoint was met for 35 (100%) and efficacy endpoint for 34 (97%) patients. During a follow-up of 26±15 months (range: 6-60 months), Safety endpoint remained 100% and efficacy endpoint was 94%. Leadless pacemaker retrieval was not required in any patient. Approximately one third of patients (n=13, 37%) had40% ventricular pacing burdens at one year, including all 10 patients with a complete AV block but also 3 patients with normal AV conduction during implantation. One patient reported symptoms of pacemaker syndrome which was confirmed using Holter recording and successfully treated using reprogramming.In this observational study, leadless pacemakers demonstrated favorable short- and intermediate-term safety and effectiveness in young adults. This article is protected by copyright. All rights reserved.
- Published
- 2022
3. Physiological pacing with a DF‐1 single chamber defibrillator in a patient with permanent atrial fibrillation and heart block: A case report
- Author
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Mathieu Nasarre, Nicolas Clementy, Alexandre Bodin, Dominique Babuty, and Arnaud Bisson
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Cardiac Resynchronization Therapy ,Male ,Bundle of His ,Heart Block ,Treatment Outcome ,Physiology (medical) ,Atrial Fibrillation ,Cardiac Pacing, Artificial ,Humans ,Cardiomyopathies ,Cardiology and Cardiovascular Medicine ,Aged ,Defibrillators - Abstract
We report a case report of a 68-year-old man with chemotherapy-induced cardiomyopathy and uncontrolled permanent atrial fibrillation. Cardiac resynchronization therapy implantation and atrioventricular junction ablation were planned. DF-1 single chamber defibrillator was connected to lead's defibrillation and a lead destinated to left bundle branch area pacing. This system leads to reduce costs by one-third, improve battery longevity, and provide a more physiological pacing.
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- 2022
4. Distal‐to‐proximal delay for ablation of premature ventricular contractions
- Author
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Arnaud Bisson, Clémentine André, Laurent Fauchier, Bertrand Pierre, Yann Ancedy, Nicolas Clementy, and Dominique Babuty
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Adult ,Male ,medicine.medical_specialty ,Time Factors ,Heart Ventricles ,medicine.medical_treatment ,Action Potentials ,Catheter ablation ,030204 cardiovascular system & hematology ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Heart Rate ,Predictive Value of Tests ,Physiology (medical) ,Internal medicine ,Heart rate ,Humans ,Medicine ,Prospective Studies ,030212 general & internal medicine ,Ventricular ectopic ,Prospective cohort study ,Aged ,Aged, 80 and over ,Receiver operating characteristic ,business.industry ,Middle Aged ,Ablation ,Ventricular Premature Complexes ,Catheter ,Treatment Outcome ,Predictive value of tests ,Catheter Ablation ,Cardiology ,Female ,Electrophysiologic Techniques, Cardiac ,Cardiology and Cardiovascular Medicine ,business - Abstract
INTRODUCTION Ablation of premature ventricular contractions (PVCs) has emerged as a safe and effective treatment in patients experiencing a high PVCs burden. Mapping of PVCs origin may sometimes be challenging. We sought to evaluate the accuracy of a new electrophysiological criterion, the distal-to-proximal (DP) delay, at localizing the optimal site for ablation of ventricular ectopic foci. METHODS AND RESULTS Consecutive patients with ablation attempts of symptomatic PVCs were included. Prematurity and DP delay-that is, the time duration between the onset of ablation catheter distal bipolar electrogram and the onset of proximal bipolar electrogram-were measured at successful and unsuccessful ablation sites by three blinded experienced electrophysiologists. Mean DP delay at effective ablation sites (N = 30) was significantly higher than at ineffective sites ( N = 55) (23 ± 9 vs 11 ± 8 milliseconds; P
- Published
- 2018
5. How to upgrade a leadless pacemaker to cardiac resynchronization therapy
- Author
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Anne Bernard, Laurent Fauchier, Dominique Babuty, Nicolas Clementy, Arnaud Bisson, and Thibaud Lacour
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Male ,medicine.medical_specialty ,Pacemaker, Artificial ,medicine.medical_treatment ,Cardiomyopathy ,Cardiac resynchronization therapy ,030204 cardiovascular system & hematology ,Cardiac Resynchronization Therapy ,03 medical and health sciences ,Ventricular Dysfunction, Left ,0302 clinical medicine ,Physiology (medical) ,Internal medicine ,Atrial Fibrillation ,medicine ,Humans ,cardiovascular diseases ,030212 general & internal medicine ,Lead (electronics) ,Coronary sinus ,Aged ,Aged, 80 and over ,Tricuspid valve ,business.industry ,Perioperative ,medicine.disease ,medicine.anatomical_structure ,Heart failure ,cardiovascular system ,Cardiology ,Cardiology and Cardiovascular Medicine ,business ,Complication - Abstract
Introduction We sought to develop an efficient method to upgrade pacing-induced cardiomyopathy (PICM) patients from a leadless pacemaker (LPM) to cardiac resynchronization therapy. Methods and results Three consecutive patients with chronic atrial fibrillation, implanted with an LPM, with permanent right ventricular pacing, and who developed left ventricular systolic dysfunction due to PICM, were included. A conventional biventricular pacemaker with two different coronary sinus leads, one used for left lateral ventricular pacing, one for early right ventricular sensing, was implanted. It was then synchronized with the LPM working as the right ventricular pacing lead to provide biventricular pacing. The upgrading technique was feasible in all cases, without any perioperative complication. All patients had an improved clinical status during follow-up. Conclusion This new upgrading technique allows efficient cardiac resynchronization therapy in LPM patients while preventing tricuspid valve crossing and providing an increased battery longevity.
- Published
- 2019
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