Effect of endoleaks on changes in aortoiliac volume after endovascular repair for abdominal aortic aneurysm.

Autor: Meinel, Felix G., Haack, Mareike, Weidenhagen, Rolf, Hellbach, Katharina, Rottenkolber, Marietta, Armbruster, Marco, Jerkku, Thomas, Thierfelder, Kolja M., Plum, Jessica L. V., Koeppel, Thomas A., Rubin, Geoffrey D., Sommer, Wieland H.
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Zdroj: Clinical Hemorheology & Microcirculation; 2016, Vol. 64 Issue 2, p135-147, 13p
Abstrakt: PURPOSE: To evaluate changes in aortoiliac volume after endovascular repair (EVAR) for abdominal aortic aneurysm (AAA) in patients with and without endoleaks. MATERIALS AND METHODS:We retrospectively analyzed 137 patients who underwent EVAR for AAA.We manually measured the aortoiliac volume on pre-procedural baseline CT angiograms (CTAs) and post-procedural follow-up CTAs. All post-procedural CTAs were evaluated for the presence of endoleaks. Follow-up examinations were grouped into five time points relative to the date of the EVAR procedure and mean aortoiliac volume changes from the baseline were calculated. RESULTS: In 51 patients (37.2%), endoleaks were detected during follow-up. In patients without any endoleaks, mean aortoiliac volume decreased by 21.1% from the pre-interventional baseline examination to the last follow-up examination. In patients with any endoleak during follow-up aortoiliac volume increased by 12.2% and in patients with only transient, post-procedural endoleaks (n = 18), aortoiliac volume decreased by 13.4% over the same time period. CONCLUSION: After EVAR for AAA, aortoiliac volume on CT angiography decreases by approximately 20% over time in the absence of endoleaks and increases in the presence of endoleaks. Transient post-procedural endoleaks, however, do not influence long-term volume regression. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index