Salvage of Permanent Epicardial Lead Function by Conversion of a Bipolar to Unipolar Lead

2012 ◽  
Vol 27 (6) ◽  
pp. 771-773
Author(s):  
Robert C Neely ◽  
Henry M Spotnitz
Keyword(s):  
Epicardial Lead ◽  
Unipolar Lead

Distal balloon occlusion allows epicardial lead placement in a tortuous branch of the great cardiac vein

2009 ◽  
Vol 25 (2) ◽  
pp. 159-161
Author(s):  
Parag Patel ◽  
Javier E. Banchs ◽  
Robert T. Stevenson ◽  
Nehal D. Patel ◽  
Gerald V. Naccarelli ◽  
...  
Keyword(s):  
Balloon Occlusion ◽  
Great Cardiac Vein ◽  
Epicardial Lead ◽  
Lead Placement

scholarly journals Pacemaker Failure Due to Loss of Fluid Seal in a Patient with a 5/6mm Pacemaker Header Port and a 5mm Unipolar Lead

2013 ◽  
Vol 13 (6) ◽  
pp. 217-220 ◽  
Author(s):  
Paul Chun Yih Lim ◽  
Boon Yew Tan ◽  
Kah Leng Ho ◽  
Chee Keong Ching ◽  
Wee Siong Teo
Keyword(s):  
Unipolar Lead

Left Ventricular Epicardial Lead Implantation: Anatomy, Techniques, and Tools

2007 ◽  
pp. 134-144
Author(s):  
Jennifer Cummings ◽  
William Belden ◽  
Bruce L. Wilkoff
Keyword(s):  
Left Ventricular ◽  
Epicardial Lead

Comparison of Endovascular Versus Epicardial Lead Placement for Resynchronization Therapy

2014 ◽  
Vol 113 (5) ◽  
pp. 840-844 ◽  
Author(s):  
Naga V. Garikipati ◽  
Suneet Mittal ◽  
Farooq Chaudhry ◽  
Dan L. Musat ◽  
Tina Sichrovsky ◽  
...  
Keyword(s):  
Resynchronization Therapy ◽  
Epicardial Lead ◽  
Lead Placement

scholarly journals Epicardial Unipolar Lead Loss of Ventricular Capture during Radiofrequency Ablation of Atrial Fibrillation

2020 ◽  
Vol 2020 ◽  
pp. 1-3
Author(s):  
Daniel J. Chu ◽  
Wilson W. Lam
Keyword(s):  
Atrial Fibrillation ◽  
Radiofrequency Ablation ◽  
Pulmonary Vein ◽  
Case History ◽  
Pulse Generator ◽  
Persistent Atrial Fibrillation ◽  
Dual Chamber ◽  
Dual Chamber Pacemaker ◽  
Cellular Changes ◽  
Unipolar Lead

Introduction. Abnormal pacemaker behavior can occur during radiofrequency ablation. The behaviors are varied and include loss of capture. The mechanisms in this context have not been well described in the literature. We describe a case of epicardial unipolar lead loss of ventricular capture during pulmonary vein isolation. Case History. A 48-year-old man with an epicardial dual chamber pacemaker and persistent atrial fibrillation presented for radiofrequency ablation (RFA) of his abnormal rhythm. During RFA, intermittent loss of ventricular capture was witnessed. Review of the device settings prior to and after the procedure showed an increase in ventricular threshold after the procedure. Loss of capture was shown to be dependent on location and RF energy delivered. It was independent of QTc and independent of local cellular changes that would increase threshold. Conclusion. We hypothesize the mechanism of loss of ventricular capture in this patient with an epicardial pacemaker with unipolar leads is related to intermittent shunt of voltage from the pulse generator to the grounding pad rather than the unipolar lead.

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