ASSA13-02-22 Application of a Novel Pacing Guide Wire in Cardiac Resynchronization Therapy. (29th April 2013)

• Record Type: Journal Article
• Authors: Hai-bo, Yu; Yan-chun, Liang; Zu-lu, Wang; Yi, Sun; Guo-qing, Xu; Zhi-qing, Jin; Shi-bei, Li; Liu-jing, Fu; Ya-ling, Han
• Is Part Of: Heart. Volume 99(2013)Supplement 1
• Page Start: A11
• Page End: A11
• Publication Date: 2013-04-29
• Subjects: Heart -- Diseases -- Treatment -- Periodicals; Cardiology -- Periodicals; 616.12
• DOI: 10.1136/heartjnl-2013-303992.035
• Languages: English
• ISSNs: 1355-6037

Abstract

Abstract : Background: The implantation of left ventricular (LV) lead was the most complicated process in the cardiac resynchronization therapy (CRT), the aim of this study was to investigate the availability of a novel Visionwire guide wire in the implantation ofLVlead in CRT. Methods: Five heart failure patients selected for CRT were involved in the study. The pacing threshold, R-wave sensing, phrenic nerve stimulation at local coronary sinus (CS) branch were measured by the Visionwire guide wire and LV lead separately. Results: The pacing parameters were analysed through the Visionwire guide wire and LV lead separately at the 16 CS branches in 5 patients. There was no significant difference between the pacing parameters measured by the two methods. Significant correlation was found betweenLVpacing threshold assessed by the Visionwire guide wire andLVlead (r = 0.90, P < 0.01). Correlation for R wave sensing was also significant (r = 0.67, P < 0.01). The pacing sites accompanied with phrenic nerve stimulation while pacing at 10 V/0.42 ms were similar by the two methods. Visionwire guide wire could be used for local potential electrical mapping. The procedure time for pacing test in a single coronary sinus branch by Visionwire guide wire was much less than that by LV lead (12.4 ± 7.5min vs 18.3 ± 12.2min, P < 0.01). Conclusions: Visionwire guide wire facilitated transvenousLVlead implantation by prediction of pacing parameter and locate the target CS branch quickly. The electrophysiological mapping function of Visionwire guide wire as a unipolar lead might have further potential usefulness.