Simultaneous alterations of QRS configuration and tachycardia cycle length during radiofrequency ablation of idiopathic left ventricular tachycardia

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Title:	Simultaneous alterations of QRS configuration and tachycardia cycle length during radiofrequency ablation of idiopathic left ventricular tachycardia
Authors:	Lee, H;Chang, KC;Lin, YC;Chou, HT;Hung, JS
Contributors:	附設醫院內科部心臟科;China Med Coll Hosp, Dept Med, Div Cardiol, Taichung, Taiwan
Date:	2000
Issue Date:	2010-09-24 14:19:14 (UTC+8)
Publisher:	CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
Abstract:	Bipolar leads are most commonly used in the current practice of pacemaker therapy. In our study of 124 patients implanted with Guidant/Cardiac Pacemakers (CPI) Vigor dual chamber pacemakers, 5 patients had unexpectedly abrupt increases in bipolar lead impedance and pacing threshold 2 weeks to 18 months postimplantation without changes in sensing function. With the lead configuration reprogrammed to unipolar, the lead impedance and pacing threshold were restored to appropriate ranges. The changes in bipolar lead parameters can be caused by the CPI's "Quick Connect" (QC1) header lead system incorporated in these pacemakers. (PACE 2000; 23:4-7).
Relation:	JOURNAL OF ELECTROCARDIOLOGY 33(1):79-83
Appears in Collections:	[China Medical University Hospital] Jurnal articles

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