Korean Circulation Journal

The Korean Society of Cardiology (대한심장학회)
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Patient Characteristics and the Incidence of Radiation-induced Dermatitis Following Radiofrequency Catheter Ablation

  • Cha, Myung-Jin (Department of Internal Medicine, Seoul National University Hospital) ;
  • Jo, Seong Jin (Department of Dermatology, Seoul National University Hospital) ;
  • Cho, Youngjin (Department of Internal Medicine, Seoul National University Hospital) ;
  • Choi, Eue-Keun (Department of Internal Medicine, Seoul National University Hospital) ;
  • Oh, Seil (Department of Internal Medicine, Seoul National University Hospital)
  • Received : 2015.07.01
  • Accepted : 2016.02.02
  • Published : 2016.09.30
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Abstract

Background and Objectives: Radiofrequency catheter ablation (RFCA) exposes patients to fixed angle radiation for extended periods of time. We investigated the incidence and characteristics of radiation-induced dermatitis (RID) associated with RFCA. Subjects and Methods: We screened 1347 consecutive patients from 2000 to 2011 who underwent RFCA for any indication and reviewed patients with dermatologic issues at the 1-month follow-up. Skin lesions were classified into three groups: most likely RID, probable RID, and possible RID. Results: Of the 1347 enrolled patients, 12 (0.89%) experienced dermatologic issues within 1 month after RFCA, including six patients (0.45%) clinically classified as 'most likely RID' and four patients (0.30%) with 'probable RID'. Ten patients, including most likely RID or probable RID patients, developed skin lesions on the right back and upper arm. Skin lesions did not improve without meticulous treatment, and three cases required surgical intervention. We compared the RID group to the remaining 1335 patients (normal group). The mean body mass indices (BMIs) of the RID and normal groups were 29.3 and $23.9kg/m^2$, respectively (p<0.001). Radiation exposure times were longer in the RID group ($180{\pm}31.0$ vs. $47{\pm}49.9$ minutes, p<0.001). We further analyzed 44 patients (6 RID cases and 38 normal patients) that had BMIs $>26kg/m^2$ and exposure times >115 minutes based on receiver operator characteristic curve analyses. Among the 35 patients without RID, 29 patients (82.9%) did not use biplane fluoroscopy. Conclusions: Patients with high BMIs have a higher risk of developing severe RID with increasing fluoroscopy times using biplane fluoroscopy.

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