1. Reduction of radiation exposure in cryoballoon ablation procedures: a single-centre study applying intracardiac echocardiography and other radioprotective measures.
- Author
-
Rubesch-Kütemeyer V, Molatta S, Vogt J, Gutleben KJ, Horstkotte D, and Nölker G
- Subjects
- Aged, Atrial Fibrillation physiopathology, Female, Fluoroscopy, Germany, Humans, Male, Middle Aged, Operative Time, Postoperative Complications etiology, Predictive Value of Tests, Pulmonary Veins physiopathology, Radiation Exposure adverse effects, Recurrence, Retrospective Studies, Risk Assessment, Risk Factors, Time Factors, Treatment Outcome, Atrial Fibrillation diagnostic imaging, Atrial Fibrillation surgery, Cryosurgery adverse effects, Echocardiography, Pulmonary Veins diagnostic imaging, Pulmonary Veins surgery, Radiation Dosage, Radiation Exposure prevention & control, Radiography, Interventional adverse effects
- Abstract
Aims: The population treated with cryoballoon (CB) ablation is relatively young, and radiation protection is of major importance. We aimed to demonstrate that radiation exposure can be markedly reduced by intracardiac echocardiography (ICE) and optimized settings of the X-ray system., Methods and Results: We analysed 100 patients undergoing CB pulmonary vein isolation (PVI) for treatment of paroxysmal atrial fibrillation. In 50 consecutive patients (25 male, 59 ± 13 years; Group 1), we used ICE, skipped PV angiography prior to CB inflation, and avoided fluoroscopy whenever possible. Furthermore, we reduced the frame rate, minimized distance between patient and detector, and consequently applied collimation. These patients were compared with 50 similar preceding patients in Group 2 (29 male, 61 ± 12 years). Total fluoroscopy time was reduced from 18 ± 6 min in Group 2 to 12 ± 5 min in Group 1 (P < 0.001). Moreover, the dose area product was significantly lower (1555 ± 1219 vs. 4935 ± 2094 cGycm2, P < 0.001), total freezing time was significantly shortened (1855 ± 399 vs. 2121 ± 756 s, P = 0.031), and contrast media use was significantly reduced (66 ± 25 vs. 109 ± 27 mL, P < 0.001). At the same time, total procedure duration and complication rates did not differ significantly between both groups. After a 12 months follow-up, a similar percentage of patients was free from recurrences (74% in Group 1 vs. 78% in Group 2, P = 0.640)., Conclusion: Radiation exposure in CB PVI can be markedly reduced without prolonging procedure times, affecting the outcome or complication rates. Moreover, ICE seems to shorten total freezing time., (Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2016. For permissions please email: journals.permissions@oup.com.)
- Published
- 2017
- Full Text
- View/download PDF