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The use of unipolar intracardiac impedance for discrimination of haemodynamically stable and unstable arrhythmias in man

Gerry Kaye, Wayne Arthur, Deborah Edgar, Michael Lippert, Gerald Czygan
2006 Europace  
Aims To determine the feasibility of discriminating haemodynamically stable from unstable arrhythmias using right ventricular (RV) unipolar intracardiac impedance (Z).  ...  Conclusion Right ventricular unipolar impedance is an adequate sensor for determining mechanical ventricular contraction and acts as a surrogate marker for a fall in arterial blood pressure during VF.  ...  G.C.K. has delivered paid lectures on behalf of Biotronik UK. G.C.K. and Biotronik GmbH are joint holders of a patent.  ... 
doi:10.1093/europace/eul103 pmid:17008329 fatcat:ofxpewct7bblvphk4esvwtfzoy

Can transventricular intracardiac impedance measurement discriminate haemodynamically unstable ventricular arrhythmias in human?

Gerry Kaye, Deborah Edgar, Telal Mudawi, Michael Lippert, Gerald Czygan
2007 Europace  
Transventricular impedance fell significantly during unstable arrhythmias and may be useful as a sensor capable of haemodynamic discrimination.  ...  Transventricular impedance was measured by injecting a subthreshold biphasic rectangular pulse of 600 mA between poles 1 of the CS catheter and pole 1 of the RVA catheter and the voltage measured between  ...  In commercial systems with permanent leads, fibrosis of the tip ensures that the lead movement is directly related to movement of the heart.  ... 
doi:10.1093/europace/eul150 pmid:17272334 fatcat:gc6xdnjp6neyddtk3dqmyqmzrm

Future of Implantable Devices for Cardiac Rhythm Management

C.-P. Lau, C.-W. Siu, H.-F. Tse
2014 Circulation  
The online-only Data Supplement is available with this article at http://circ.ahajournals.org/lookup/suppl/  ...  Adenovirus Porcine model of atrioventricular heart block Supplemental References  ...  T he first cardiac implantable electronic device (CIED), the electronic pacemaker, maintains cardiac contraction during bradycardia.  ... 
doi:10.1161/circulationaha.112.000312 pmid:24550552 fatcat:scmx34pb5bd5ndw6e3rrdqeuo4

Resynchronization therapy optimization by intracardiac impedance

M. Bocchiardo, D. Meyer zu Vilsendorf, C. Militello, M. Lippert, G. Czygan, P. Schauerte, F. Gaita, C. Stellbrink
2010 Europace  
Conclusion The feasibility of optimizing LV lead site, AVd, and VVd by intracardiac impedance has been demonstrated for CRT patients with a similar performance as using SV and PP.  ...  The feasibility of optimizing LV lead position, atrioventricular delay (AVd), and interventricular delay (VVd) in CRT using intracardiac impedance measurement was evaluated.  ...  Limitations Acute leads and catheters were used during the measurement, which are prone to small movements; this could modify the impedance measurements.  ... 
doi:10.1093/europace/euq273 pmid:20667892 fatcat:i6k3suytdbb3jcnqg7cj7nbigm

A Review on Recent Patents in Digital Processing for Cardiac Electric Signals (I): From Basic Systems to Arrhythmia Analysis

Rebeca Goya-Esteban, Oscar Barquero-Perez, Felipe Alonso-Atienza, Estrella Everss, Jesus Requena-Carrion, Arcadi Garcia-Alberola, Jose Rojo-Alvarez
2009 Recent Patents on Biomedical Engineering  
The wide number of basic systems for cardiac signal processing analysis that have been disclosed indicates that this field represents a main scenario in the near and middle future of cardiac health.  ...  A number of systems have been patented during the last years, which are grouped in this review according to their application scope.  ...  Given that there is no current method for obtaining realtime medical images of electric cardiac activity in the clinical setting, we are attending today to the movement from atomic analysis of signals,  ... 
doi:10.2174/1874764710902010022 fatcat:fm2mujrcpjfzhbx4h6b5v5cgem

Evolution of pacing for bradycardias: sensors

Chu-Pak Lau, Hung-Fat Tse, A. John Camm, Serge S. Barold
2007 European Heart Journal, Supplement  
Sensors can be classified by the method they detect a physiological change: body accelerations, paced QRS, impedance and sensors that require special leads.  ...  The latest development involves the use of sensors to monitor heart failure, and to best optimize rate and conduction status in cardiac resynchronization therapy.  ...  On the other hand, as contraction occurs, the walls surrounding the electrode tip get closer and impedance rises.  ... 
doi:10.1093/eurheartj/sum057 fatcat:bllihl5v65gl3jayh557mr3tku

JCS/JHRS 2019 guideline on non‐pharmacotherapy of cardiac arrhythmias

Akihiko Nogami, Takashi Kurita, Haruhiko Abe, Kenji Ando, Toshiyuki Ishikawa, Katsuhiko Imai, Akihiko Usui, Kaoru Okishige, Kengo Kusano, Koichiro Kumagai, Masahiko Goya, Yoshinori Kobayashi (+47 others)
2021 Journal of Arrhythmia  
This guideline contains information on conventional cardiac implantable electronic devices (CIEDs), such as pacemakers, ICDs, and ICDs with biventricular pacing function, as well as new information on  ...  ventricular contractions, VT, and ventricular fibrillation, as well as treatment for the associated heart failure and thromboembolism.  ...  tachycardia or during premature atrial contractions that are the same type as the tachycardia.  ... 
doi:10.1002/joa3.12491 fatcat:mhmdd6xppred7oehln4hefdwiu

JCS/JHRS 2019 Guideline on Non-Pharmacotherapy of Cardiac Arrhythmias

Akihiko Nogami, Takashi Kurita, Haruhiko Abe, Kenji Ando, Toshiyuki Ishikawa, Katsuhiko Imai, Akihiko Usui, Kaoru Okishige, Kengo Kusano, Koichiro Kumagai, Masahiko Goya, Yoshinori Kobayashi (+47 others)
2021 Circulation Journal  
Correct: In the JCS guideline on infective endocarditis, 410 part of the recommendation level is inconsistent with that in this guideline, because the recommendations for surgical removal and cardiac vegetation  ...  Recommendations and Evidence Levels for Patients With Infection of CIED System. We added the reference number in the footnote.  ...  The authors apologize for the error in the typesetting. Corrections are shown below.  ... 
doi:10.1253/circj.cj-20-0637 pmid:34078838 fatcat:vxu7eakjrnbivgopaexbwfgwze

Outcomes of Cardiac Perforation Complicating Catheter Ablation of Ventricular Arrhythmias

M. Tokuda, P. Kojodjojo, L. M. Epstein, B. A. Koplan, G. F. Michaud, U. B. Tedrow, W. G. Stevenson, R. M. John
2011 Circulation: Arrhythmia and Electrophysiology  
Of 6 cases in which the site of perforation could be determined at cardiac surgery, 5 were in the right ventricle (4 outflow tract, 1 free wall) and only 1 was located in the left ventricle.  ...  Background-Cardiac perforation is a recognized complication of catheter ablation procedures, most commonly encountered during ablation of atrial fibrillation.  ...  Fluoroscopy showing the absence of movement of the cardiac silhouette and the injection of contrast via a drain into the pericardium Video 2.  ... 
doi:10.1161/circep.111.963413 pmid:21753037 fatcat:3foixwe4qncjtps7udk63nn5tm

Current Status of the Implantable Cardioverter-Defibrillator

Michael H. Gollob, John J. Seger
2001 Chest  
Clinical trials have established the superiority of the implantable cardioverter-defibrillator (ICD) over antiarrhythmic drug therapy in survivors of sudden cardiac death and in high-risk patients with  ...  The growing number of ICD recipients necessitates an understanding of the specialized features of the modern ICD and the role of device therapy in clinical practice.  ...  During tachycardia detection, each complex is compared to the template, and the algorithm determines the percent match.  ... 
doi:10.1378/chest.119.4.1210 pmid:11296190 fatcat:65bxkdhguzcgba6uz5q5bx7woa

Cardiac Arrhythmias

2008 Journal of the American College of Cardiology  
Intracardiac echocardiography (ICE) affords real time imaging of the cardiac structures during mapping and ablation.  ...  GIRK1 expression was determined by Western blot analysis.  ...  Mortality was the endpoint of follow-up, which was defined as death or cardiac transplant.  ... 
doi:10.1016/j.jacc.2008.02.003 fatcat:xetk5vc2lfftzakrdkpok2nrcu

The First Three Years of Ablation Therapy in Cardiac Arrhythmias: Single Centre Experience

Yusuf Turkmen, naci babat
2020 Eastern Journal Of Medicine  
ABSTRACT Improvements in both evaluation of intracardiac signals and molecular data yielded an easy understanding of complex cardiac arrhythmias and channelopathies in last years.  ...  All types of arrhythmias such as atrioventricular nodal reentry tachycardia, atrioventricular reentry tachycardia, atrial flutter, atrial tachycardias, atrial fibrillation, premature ventricular contractions  ...  Obviously, the mentioned systems helped to determine and treat an almost all of cardiac arrhythmias in last years.  ... 
doi:10.5505/ejm.2020.32650 fatcat:7w23kfs7bzei3mk5bwxryfxxee

The Heart Rhythm Society (HRS)/American Society of Anesthesiologists (ASA) Expert Consensus Statement on the Perioperative Management of Patients with Implantable Defibrillators, Pacemakers and Arrhythmia Monitors: Facilities and Patient Management

George H. Crossley, Jeanne E. Poole, Marc A. Rozner, Samuel J. Asirvatham, Alan Cheng, Mina K. Chung, T. Bruce Ferguson, John D. Gallagher, Michael R. Gold, Robert H. Hoyt, Samuel Irefin, Fred M. Kusumoto (+2 others)
2011 Heart Rhythm  
The authors also want to express our thanks to the external reviewers from: the American Society of Anesthesiologists (ASA); the American College of Cardiology (ACC); the American Heart Association (AHA  ...  Acknowledgments This document would not have been possible without the efforts of HRS staff, and the Scientific and Clinical Documents Committee.  ...  BIOTRONIK pacemakers have a rate algorithm based upon measurement of right ventricle (RV) lead tip impedance changes with cardiac contraction.  ... 
doi:10.1016/j.hrthm.2010.12.023 pmid:21722856 fatcat:en6h3jaj5nafdmrdqu25jwsnne

Emerging Technologies in Electrophysiology: From Single Chamber to Biventricular Leadless Pacemakers

Jashan Gill
2022 Cardiology  
However, they possess inevitable drawbacks as they have a relatively high incidence of lead and device pocket-related complications.  ...  Key messages: This review will encompass the current literature regarding clinical safety and outcomes of these novel leadless pacemakers and discuss the evolving technologies in the field of cardiac pacing  ...  Thiago Gagliano-Jucá, MD, PhD, for providing editing assistance for the manuscript. Statement of Ethics  ... 
doi:10.1159/000521976 pmid:35038698 fatcat:eardn5dpvfgonjf6qo6ypyhpfe

Comprehensive multicomponent cardiac rehabilitation in cardiac implantable electronic devices recipients: a consensus document from the European Association of Preventive Cardiology (EAPC; Secondary prevention and rehabilitation section) and European Heart Rhythm Association (EHRA)

Roberto F E Pedretti, Marie-Christine Iliou, Carsten W Israel, Ana Abreu, Hielko Miljoen, Ugo Corrà, Christoph Stellbrink, Andreas B Gevaert, Dominic A Theuns, Massimo F Piepoli, Rona Reibis, Jean Paul Schmid (+13 others)
2021 Europace  
patients, the risk of arrhythmia, syncope, and sudden cardiac death.  ...  As evidence from studies of CR in patients with cardiac implantable electronic devices is sparse, detailed clinical practice guidelines are lacking.  ...  detect lead fracture, dislocation, or perforation if the electrical pacing parameters (threshold, impedance, and sensing) have changed.  ... 
doi:10.1093/europace/euaa427 pmid:33636723 fatcat:xlm4e27ilbev3bpplu2xbl5s5e
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