Cumulative radiation exposure during thoracic endovascular aneurysm repair and subsequent follow-up

Stefano Zoli, Piero Trabattoni, Luca Dainese, Andrea Annoni, Claudio Saccu, Miriam Fumagalli, Rita Spirito, Paolo Biglioli

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives: Thoracic endovascular aneurysm repair (TEVAR) is an appealing alternative to the standard surgical approach, but requires rigorous radiological follow-up. The cumulative radiation exposure (RE) of patients undergoing TEVAR-including pre-operative workup, the procedure and subsequent follow-up computed tomography (CT) imaging-has not previously been investigated. Methods: From August 2003 to February 2011, 48 patients underwent TEVAR at our institution. Mean age was 66 ± 11 years, with 10 patients (21%) aged 350 mSv. Conclusions: A 2-year RE exceeding the threshold of 100 mSv with a life expectancy >15 years can be estimated to lead to a lifetime risk increase in radiation-induced leukaemia and solid-tumour cancer >2.7%. The risks of cumulative RE especially in younger and/or obese patients must be balanced with the expected morbidity and mortality reduction in TEVAR versus traditional open repair, and the anticipated benefits of recurrent radiographic imaging.

Original languageEnglish
Article numberezr301
Pages (from-to)254-260
Number of pages7
JournalEuropean Journal of Cardio-thoracic Surgery
Volume42
Issue number2
DOIs
Publication statusPublished - Aug 2012

Keywords

  • Radiation exposure
  • Radiation-induced cancer
  • Recurrent CT scan
  • TEVAR

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Surgery
  • Pulmonary and Respiratory Medicine
  • Medicine(all)

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