Arrhythmia Diagnosis Following an ICD Shock: Comment

Levine, Paul A. (2002) Arrhythmia Diagnosis Following an ICD Shock: Comment. [Journal (Paginated)]

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This case study by Dr. John1 demonstrates the care that one must take in programming an implantable cardioverter defibrillator, the complexity of these patients and the utility of the internal diagnostics in the system to facilitate the physician's understanding of device behavior. Even the single chamber ICDs have SVT discrimination algorithms that can be enabled in an effort to differentiate SVT from VT allowing the device to withhold ATP and shock therapy in the setting of an SVT. Many physicians, myself included, will initially utilize these discriminators in a monitoring mode preferring to deliver unnecessary therapy rather than inappropriately withholding needed therapy. This also provides an opportunity to better understand all the rhythms that may be occurring in a patient, many of which may not have been appreciated prior to the implant. After one or more SVT episodes have occurred and the clinician has a chance to review the stored electrograms (first introduced by Ventritex) along with the response of the device to any discriminators, a decision can be made as to how the ICD prescription might be adjusted.

Item Type:Journal (Paginated)
Subjects:JOURNALS > Indian Pacing and Electrophysiology Journal
ID Code:4325
Deposited By: Indian Pacing and Electrophysiology, Journal
Deposited On:02 May 2005
Last Modified:11 Mar 2011 08:56

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1. Roy M. John. Arrhythmia Diagnosis Following an ICD Shock.. Indian Pacing and Electrophysiology Journal; 2001;1(1):5.


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