Fluctuations of high voltage impedance

Paul A. Friedman; Charles D. Swerdlow

doi:10.1007/978-3-030-28533-3_172

Fluctuations of high voltage impedance

Paul A. Friedman
, Charles D. Swerdlow

Cardiovascular Medicine

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

A 59-year-old man with ischemic cardiomyopathy had a single-chamber Medtronic Entrust™ ICD and Sprint Fidelis™ Model 6949 dual-coil true bipolar lead implanted over 2 years ago after out-of-hospital VF. His NYHA Class is III and left ventricular ejection fraction is 34%. After an episode of monomorphic VT storm a year ago, he has been treated with amiodarone 200 mg per day to decrease the frequency of VT. He now presents for a routine follow-up visit. The pacing threshold is 0.5 V at 0.4 ms, and the pacing lead impedance is stable at 560 Ω. One episode of device-detected VT is stored in the ICD. Diagnosis and management steps are discussed.

Original language	English (US)
Title of host publication	Cardiac Electrophysiology
Subtitle of host publication	Clinical Case Review
Publisher	Springer International Publishing
Pages	687-691
Number of pages	5
ISBN (Electronic)	9783030285333
ISBN (Print)	9783030285319
DOIs	https://doi.org/10.1007/978-3-030-28533-3_172
State	Published - Jan 1 2020

Keywords

Amiodarone
Cardiomyopathy
ICD

ASJC Scopus subject areas

General Medicine

Access to Document

10.1007/978-3-030-28533-3_172

Cite this

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abstract = "A 59-year-old man with ischemic cardiomyopathy had a single-chamber Medtronic Entrust{\texttrademark} ICD and Sprint Fidelis{\texttrademark} Model 6949 dual-coil true bipolar lead implanted over 2 years ago after out-of-hospital VF. His NYHA Class is III and left ventricular ejection fraction is 34\%. After an episode of monomorphic VT storm a year ago, he has been treated with amiodarone 200 mg per day to decrease the frequency of VT. He now presents for a routine follow-up visit. The pacing threshold is 0.5 V at 0.4 ms, and the pacing lead impedance is stable at 560 Ω. One episode of device-detected VT is stored in the ICD. Diagnosis and management steps are discussed.",

keywords = "Amiodarone, Cardiomyopathy, ICD",

author = "Friedman, \{Paul A.\} and Swerdlow, \{Charles D.\}",

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AU - Swerdlow, Charles D.

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N2 - A 59-year-old man with ischemic cardiomyopathy had a single-chamber Medtronic Entrust™ ICD and Sprint Fidelis™ Model 6949 dual-coil true bipolar lead implanted over 2 years ago after out-of-hospital VF. His NYHA Class is III and left ventricular ejection fraction is 34%. After an episode of monomorphic VT storm a year ago, he has been treated with amiodarone 200 mg per day to decrease the frequency of VT. He now presents for a routine follow-up visit. The pacing threshold is 0.5 V at 0.4 ms, and the pacing lead impedance is stable at 560 Ω. One episode of device-detected VT is stored in the ICD. Diagnosis and management steps are discussed.

AB - A 59-year-old man with ischemic cardiomyopathy had a single-chamber Medtronic Entrust™ ICD and Sprint Fidelis™ Model 6949 dual-coil true bipolar lead implanted over 2 years ago after out-of-hospital VF. His NYHA Class is III and left ventricular ejection fraction is 34%. After an episode of monomorphic VT storm a year ago, he has been treated with amiodarone 200 mg per day to decrease the frequency of VT. He now presents for a routine follow-up visit. The pacing threshold is 0.5 V at 0.4 ms, and the pacing lead impedance is stable at 560 Ω. One episode of device-detected VT is stored in the ICD. Diagnosis and management steps are discussed.

KW - Amiodarone

KW - Cardiomyopathy

KW - ICD

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BT - Cardiac Electrophysiology

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Fluctuations of high voltage impedance

Abstract

Keywords

ASJC Scopus subject areas

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