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THE JOURNAL OF CARDIOVASCULAR SURGERY
Rivista di Chirurgia Cardiaca, Vascolare e Toracica
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES VASCULAR SECTION
The Journal of Cardiovascular Surgery 2007 Ottobre;48(5):593-600
Postinterventional volume dynamics following endovascular treatment of infrarenal aortic aneurysms
Glodny B. 1, Chemelli A. 1, Petersen J. 1, Kopf H. 2, Steingruber I. 1
1 Department of Radiology Innsbruck Medical University, Innsbruck, Austria
2 Department of Radiology Wilhelminen-Spital, Vienna, Austria
Aim. Endovascular treatment of infrarenal aortic aneurysms requires follow-up to rule out complications that would require renewed intervention. The aim of this study was to define those factors which, in the absence of such complications, could be relevant for the remaining risk.
Methods. The CT data sets of 55 patients (73.5±8 years; M: F ratio 49: 6) were evaluated volumetrically: immediately postinterventional, 6 months, and annually after the procedure. The median observation period was 30±19 months.
Results. Risk factors for a further increase in aneurysm volume were: short-term increase in volume >5%, medium-term growth >20%, one-time growth >20%, no decrease in volume, and an initial aneurysm volume >200 mL. Favorable factors were: a one-time decrease in volume >15% and no increase in volume at any follow-up visit. Indifferent factors were: initial decrease in volume, one-time growth <20%, one-time shrinkage <15%, and type II endoleak.
Conclusion. Patients require particular attention whose aneurysm volume increased by more than 5% or increased medium-term or increased at once by more than 20%, and who either did not show a decrease in volume at any follow-up or who had a large initial volume. A one-time decrease in volume of more than 15% was positive, as was no increase in volume at any follow-up.