| Hyperkalemia induced T wave oversensing leading to loss of biventricular pacing and inappropriate ICD shocks. | |
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MedLine Citation:
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PMID: 15125731 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Inappropriate ICD shocks remain a common problem. Double counting of single ventricular events can occur with biventricular ICDs implanted before univentricular sensing was available. Often this is due to a tachyarrhythmia or loss of left ventricular capture. This report describes a patient who developed hyperkalemia during hemodialysis, received inappropriate ICD shocks and experienced loss of biventricular pacing due to T wave rather than QRS double counting. Oversensing was abolished by reducing the potassium content of the dialysis bath. This underscores the need for careful interpretation of saved electrograms to determine the cause for, and appropriate treatment of, device related problems. |
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Authors:
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Ashok K Koul; Seth Keller; Jude F Clancy; Rachel Lampert; William P Batsford; Lynda E Rosenfeld |
Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Pacing and clinical electrophysiology : PACE Volume: 27 ISSN: 0147-8389 ISO Abbreviation: Pacing Clin Electrophysiol Publication Date: 2004 May |
Date Detail:
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Created Date: 2004-05-05 Completed Date: 2004-09-17 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 7803944 Medline TA: Pacing Clin Electrophysiol Country: United States |
Other Details:
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Languages: eng Pagination: 681-3 Citation Subset: IM |
Affiliation:
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Yale University School of Medicine, New Haven, Connecticut 06520, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Defibrillators, Implantable
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adverse effects* Equipment Failure Humans Hyperkalemia / complications* Male Middle Aged Ventricular Fibrillation / etiology*, surgery* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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