A Combined Atrial/Ventricular Lead for Permanent Dual-Chamber Cardiac Pacing Applications

CHEST Journal ◽  
1983 ◽  
Vol 83 (6) ◽  
pp. 929-931
Author(s):  
David G. Benditt ◽  
D. Woodrow Benson ◽  
Kenneth Stokes ◽  
Marc R. Pritzker ◽  
Robert W Anderson
Keyword(s):  
Cardiac Pacing ◽  
Dual Chamber ◽  
Ventricular Lead

scholarly journals A case report of inappropriate inhibition of ventricular pacing due to a unique pacemaker electrogram storage feature

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Habib R Khan ◽  
William K Chan ◽  
Juliana Kanawati ◽  
Raymond Yee
Keyword(s):  
Rare Case ◽  
Storage Capacitor ◽  
Ventricular Pacing ◽  
Dual Chamber ◽  
Holter Monitor ◽  
Case Summary ◽  
Ventricular Lead ◽  
Internal Function ◽  
Third Degree Atrioventricular Block

Abstract Background Modern permanent pacemakers (PPMs) have individual features designed to identify cardiac rhythm abnormalities and improve their performance. Inappropriate pacing inhibition may be an undesired outcome from these features and cause symptoms in patients who require frequent pacing, leading to dizziness, and syncope. Inappropriate inhibition can be difficult to identify in circumstances that are intermittent and difficult to reproduce. Case summary A 57-year-old female underwent a mitral valve replacement (MVR) for severe mitral stenosis. One month following MVR, she presented with symptomatic third-degree atrioventricular block, and a dual-chamber PPM (Advisa™, Medtronic, Minneapolis, USA) was implanted and programmed DDD 50–130 b.p.m. At the 3-month follow-up, she reported frequent episodes of lightheadedness. She was found to have intermittent ventricular pacing inhibition on a 48-h Holter monitor due to an internal function of the Advisa™ series of PPMs that attempts to store an electrogram (EGM) every 1 h and 30 s. During the EGM storage, an amplified signal from the storage capacitor can result in oversensing by the ventricular channel and inappropriate pacing inhibition. Discussion To rectify the issue, the ventricular lead sensitivity value was increased from 0.9 mV to 1.2 mV. No instances of inappropriate ventricular pacing inhibition were noted on follow-up. To our knowledge, this is a rare case of inappropriate ventricular pacing inhibition caused by a combination of PPM self-adjusting sensitivity algorithm and oversensing every 1 h and 30 s from an amplified storage capacitor. Physicians should be aware of this possible complication and differentiate it from device or lead malfunction.

scholarly journals The Apparent and the Effective PR Interval, Insights for Cardiac Pacing

2011 ◽  
Vol 4 ◽  
pp. CCRep.S8227
Author(s):  
Antoine Kossaify
Keyword(s):  
Right Ventricular ◽  
Male Patient ◽  
Right Bundle Branch Block ◽  
Cardiac Pacing ◽  
Qrs Complex ◽  
Dual Chamber ◽  
Bundle Branch Block ◽  
Dual Chamber Pacemaker ◽  
Pr Interval ◽  
Av Delay

A 75-year-old-male patient with dual chamber pacemaker presented with a bizarre EKG showing a unique spike within the QRS complex. Apparent PR interval was 160 ms and effective atrio- right ventricular delay was 210 ms due to right bundle branch block. Sensed AV delay was set at 180 ms causing pseudofusions. Insights regarding cardiac pacing are presented.

Temporary pacing

2018 ◽  
Author(s):  
Bulent Gorenek
Keyword(s):  
Biventricular Pacing ◽  
Sinus Node ◽  
Cardiac Pacing ◽  
Coronary Intervention ◽  
Venous Access ◽  
Term Treatment ◽  
Dual Chamber ◽  
Short Term Treatment ◽  
Temporary Pacing ◽  
Life Threatening

Temporary cardiac pacing by electrical stimulation of the heart is indicated as a short-term treatment of life-threatening bradyarrhythmias or tachyarrhythmias. It can be used temporarily until the arrhythmias resolve or as a bridge to permanent pacing. Symptomatic bradycardias needing temporary pacing may occur in acute myocardial infarction, during percutaneous coronary intervention, and in patients with sinus node dysfunction. Temporary pacing can also be useful for terminating or suppressing some types of supraventricular and ventricular arrhythmias. Single-chamber, dual-chamber, or biventricular pacing modes can be used. In haemodynamically compromised patients, dual-chamber pacing is preferred. Ideally, this procedure is performed under fluoroscopy, but electrode catheters can also be inserted without fluoroscopy, with ECG and/or pressure monitoring. Several methods of temporary pacing are available: transvenous, external, and transoesophageal pacing. Transvenous pacing is the most commonly used technique. Although this method is safe and easy, some complications related to venous access or caused by the inserted electrode catheters or by an electrical dysfunction of the pacing device may occur, either during or after the implantation.

Twiddler’s syndrome with occult lead insulation damage in a child with epicardial pacemaker leads

2020 ◽  
Vol 30 (6) ◽  
pp. 890-891
Author(s):  
Peter Kramer ◽  
Felix Berger ◽  
Björn Peters
Keyword(s):  
Rare Case ◽  
Pacemaker Lead ◽  
Dual Chamber ◽  
Dual Chamber Pacemaker ◽  
Ventricular Lead ◽  
Insulation Defect ◽  
Pacemaker Leads ◽  
Twiddler’S Syndrome ◽  
Lead Testing

AbstractWe present a rare case of incidentally diagnosed Twiddler’s syndrome in a child 7 years after implantation of a dual-chamber pacemaker system with epicardial leads. During revision, an insulation defect of the ventricular lead was evident, despite unremarkable prior pacemaker lead testing. The lead was repaired and a new generator was suture-fixated to prevent re-occurrence of generator manipulation.

Unusual Cause of Far-Field Atrial Sensing by the Ventricular Lead of a Dual Chamber Defibrillator. What is the Mechanism?

2012 ◽  
Vol 36 (4) ◽  
pp. 501-504
Author(s):  
S. SERGE BAROLD ◽  
ANDREAS KUCHER ◽  
FREDERIC VAN HEUVERSWYN ◽  
LIESBETH TIMMERS ◽  
ROLAND X. STROOBANDT
Keyword(s):  
Far Field ◽  
Dual Chamber ◽  
Ventricular Lead ◽  
Dual Chamber Defibrillator ◽  
Atrial Sensing

Temporary pacing

2021 ◽  
pp. 306-313
Author(s):  
Bulent Gorenek
Keyword(s):  
Biventricular Pacing ◽  
Sinus Node ◽  
Cardiac Pacing ◽  
Coronary Intervention ◽  
Venous Access ◽  
Term Treatment ◽  
Dual Chamber ◽  
Temporary Pacing ◽  
Percutaneous Coronary ◽  
Life Threatening

Temporary cardiac pacing by electrical stimulation of the heart is indicated as a short-term treatment of life-threatening bradyarrhythmias or tachyarrhythmias. It can be used temporarily until the arrhythmias resolve or as a bridge to permanent pacing. Symptomatic bradycardias needing temporary pacing may occur in acute myocardial infarction, during percutaneous coronary intervention, and in patients with sinus node dysfunction. Temporary pacing can also be useful for terminating or suppressing some types of supraventricular and ventricular arrhythmias. Single-chamber, dual-chamber, or biventricular pacing modes can be used. In haemodynamically compromised patients, dual-chamber pacing is preferred. Ideally, this procedure is performed under fluoroscopy, but electrode catheters can also be inserted without fluoroscopy, with ECG and/or pressure monitoring. Several methods of temporary pacing are available: transvenous, external, and transoesophageal pacing. Transvenous pacing is the most commonly used technique. Although this method is safe and easy, some complications related to venous access or caused by the inserted electrode catheters or by an electrical dysfunction of the pacing device may occur, either during or after the implantation.

scholarly journals A case of cardiac strangulation following epicardial pacemaker implantation

2020 ◽  
Vol 68 (12) ◽  
pp. 1499-1502
Author(s):  
Chihiro Miyagi ◽  
Yoshie Ochiai ◽  
Yusuke Ando ◽  
Manabu Hisahara ◽  
Hironori Baba ◽  
...  
Keyword(s):  
Pulmonary Stenosis ◽  
Pacemaker Implantation ◽  
Complete Atrioventricular Block ◽  
Dual Chamber ◽  
Congenital Complete Atrioventricular Block ◽  
Ventricular Lead ◽  
Cardiac Silhouette ◽  
The Right ◽  
Complete Atrioventricular

AbstractAn 8-year-old boy had undergone permanent epicardial pacemaker implantation with a Y-shaped bipolar ventricular lead on day 6 after birth for treatment of congenital complete atrioventricular block. He was found to have pulmonary stenosis and mitral stenosis by follow-up echocardiography. Further studies including computed tomography and cardiac catheterization revealed that the pacemaker lead had completely encircled the cardiac silhouette and was in a state of “cardiac strangulation”. We removed the previous pacing leads and generator and implanted a new epicardial dual-chamber pacing system in the right atrium and right ventricle. Additionally, an expanded polytetrafluoroethylene sheet was placed between the new leads and the heart to prevent recurrence of cardiac strangulation.

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