Document Detail

Entrance Skin Dose during Radiofrequency Catheter Ablation for Tachyarrhythmia: A Multicenter Study.
MedLine Citation:
PMID:  21609338     Owner:  NLM     Status:  In-Data-Review    
Background:  To assess the entrance skin dose (ESD) during radiofrequency catheter ablation procedures for tachyarrhythmia including atrial fibrillation (Af). Methods:  This study focused on 99 consecutive patients who underwent procedures for tachyarrhythmia (Af; n = 34, non-Af; n = 65) in three institutions. The non-Af group included atrial flutter, atrial tachycardia, paroxysmal supraventricular tachycardia, ventricular tachycardia, ventricular premature contraction, atrial premature contraction, atrioventricular nodal reentry tachycardia, and Wolff-Parkinson-White syndrome. In two of the three institutions, the procedures were performed for both Af and non-Af. The ESDs were measured using 100 radiosensitive indicators attached to the back of each patient's jacket at 5-cm intervals. For statistical analyses, multiple regression analysis (the dependent variable, Max-ESD; and the independent variables, dose area product [DAP], total fluoroscopic time [TFT], body mass index, etc.), Pearson's correlation test, and the Mann-Whitney test were employed. Results:  The overall averages for the TFTs, the DAPs, and the Max-ESDs were 49.9 ± 28.2 minutes, 71.2 ± 73.7 Gy cm(2) , and 0.57 ± 0.51 Gy, respectively. DAP was positively related to the Max-ESD and was significant in stepwise multiple regression analysis (P < 0.0001). There was a significant association between TFT and Max-ESD in five of the six kinds of angiographic unit, and between DAP and Max-ESD in all three systems with available DAP measures. In one institution, TFT, DAP, and Max-ESD differed significantly between the Af and non-Af groups (P = 0.0002, P < 0.0001, and P < 0.0001). Conclusions:  During the cardiac catheter ablation, ESDs of only a few patients exceeded the thresholds of radiation skin injuries, and the DAP proved useful to estimate each patient's Max-ESD. (PACE 2011; 34:563-570).
Takashi Kidouchi; Shigeru Suzuki; Shigeru Furui; Haruo Mitani; Junichi Nitta; Kunihiro Matsumoto; Kuni Ohtomo
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  34     ISSN:  1540-8159     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-05-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  563-70     Citation Subset:  IM    
Copyright Information:
©2011, The Authors. Journal compilation ©2011 Wiley Periodicals, Inc.
Department of Radiology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan Department of Radiology, Saitama Red Cross Hospital, Saitama, Japan Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan Department of Cardiology, Toranomon Hospital, Tokyo, Japan Department of Cardiology, Saitama Red Cross Hospital, Saitama, Japan Department of Radiology, Fukuoka University Hospital, Fukuoka, Japan.
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