Impact of Obesity on Overall Radiation Exposure for Patients Who Underwent Radiofrequency Ablation of Atrial Fibrillation
Autor: | Caroline Mora, Pierre Nazeyrollas, Laurent Faroux, François Lesaffre, Thierry Blanpain, Damien Metz |
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Rok vydání: | 2019 |
Předmět: |
Male
medicine.medical_specialty Radiofrequency ablation medicine.medical_treatment 030204 cardiovascular system & hematology Effective dose (radiation) 030218 nuclear medicine & medical imaging law.invention Ionizing radiation 03 medical and health sciences 0302 clinical medicine law Risk Factors Internal medicine Atrial Fibrillation Medicine Humans In patient Obesity Radiation Injuries Aged Retrospective Studies business.industry Incidence Retrospective cohort study Atrial fibrillation Dose-Response Relationship Radiation Middle Aged Radiation Exposure medicine.disease Ablation Radiation exposure Fluoroscopy Cardiology Catheter Ablation Female Radiology France Cardiology and Cardiovascular Medicine business Tomography X-Ray Computed Follow-Up Studies |
Zdroj: | The American journal of cardiology. 124(8) |
ISSN: | 1879-1913 |
Popis: | Patients who underwent radiofrequency ablation of atrial fibrillation are exposed to X-rays not only during the procedure but also during the preprocedural computed tomography. No study has investigated the cumulative effective dose received by patients who underwent atrial fibrillation ablation and identified factors influencing this dose. We aimed to evaluate the overall exposure to ionizing radiation in patients who underwent radiofrequency ablation of atrial fibrillation. The secondary objective was to estimate the impact of obesity on this exposure. All patients who underwent a first attempt of radiofrequency ablation of atrial fibrillation in our center over a 21 months period were included. Dosimetric indicators from preprocedural computed tomography and the ablation procedure were collected and converted into an effective dose. A total of 144 radiofrequency ablation of atrial fibrillation were included. The mean cumulative effective dose was 11.4 mSv, and 82% of the dose was from the computed tomography. Obese patients received a dose that was 75% higher than normal-weight patients, and this increase remained significant by multivariate analysis. In conclusion, overall exposure to ionizing radiation for patients who underwent radiofrequency ablation of atrial fibrillation seems acceptable, and the majority of the overall effective dose comes from the computed tomography. Obese patients are exposed to a 75% higher dose than normal-weight patients. |
Databáze: | OpenAIRE |
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