Document Detail

Unmasking of myopotential oversensing by an integrated bipolar defibrillator lead following AV node ablation.
MedLine Citation:
PMID:  22457167     Owner:  NLM     Status:  Publisher    
A 73-year-old man with nonischemic cardiomyopathy underwent catheter ablation of ventricular tachycardia that had resulted in frequent shocks from his implanted cardiac resynchronization therapy defibrillator (CRT-D). Coexisting atrial fibrillation required AV node ablation which rendered the patient pacemaker dependent. During follow-up, recurrent episodes of dizziness occurred caused by inhibition of pacing due to oversensing of pectoral muscle myopotentials. Surgical revision was performed and the intraoperative examination revealed an intact integrated bipolar defibrillator lead with appropriate connections to the CRT-D header. The placement of an additional pace/sense lead completely resolved the patient's symptoms and no further myopotential oversensing was recorded.
M Dorenkamp; L-H Boldt; F Blaschke; Y Kühnle; W Haverkamp; M Roser
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-30
Journal Detail:
Title:  Herzschrittmachertherapie & Elektrophysiologie     Volume:  -     ISSN:  1435-1544     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9425873     Medline TA:  Herzschrittmacherther Elektrophysiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Cardiology, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
Vernacular Title:
Demaskierung von Myopotenzial-Oversensing durch eine integrierte bipolare Defibrillatorsonde nach Katheterablation des AV-Knotens.
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