Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
An Appropriate Defibrillation Threshold Obtained by the Combined Connection Between Two Shock Leads and ICD Generator
Akinori SatoMasaomi ChinushiKenichi IijimaHiroshi WatanabeDaisuke IzumiHiroshi FurushimaKeiko SonodaKanae HasegawaNobue YagiharaYoshifusa Aizawa
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JOURNALS OPEN ACCESS

2011 Volume 50 Issue 22 Pages 2815-2818

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Abstract

A 60-year-old man with arrhythmogenic right ventricular cardiomyopathy was readmitted for the battery exchange of his implantable cardioverter-defibrillator (ICD). Since (i) he had been treated with a dual-coil shock lead (Sprint Fidelis, Medtronic) and (ii) pre-operative venography showed mild collateral flow to the left subclavian vein, a single-coil lead was additionally implanted. However, the single-coil defibrillation system was unable to terminate the induced ventricular fibrillation (VF), thus dual defibrillation shock pathways were created using the connection to the superior vena cava coil of the Fidelis lead. The combined connections of the two shock leads provided an appropriate margin of the defibrillation threshold.

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© 2011 by The Japanese Society of Internal Medicine
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