Impact of Age and Intraluminal Thrombus Volume on Abdominal Aortic Aneurysm Sac Enlargement after Endovascular Repair

Definition of Type II Endoleak Risk Based on Preoperative Anatomical Characteristics

“…According to our multiple logistic regression model, thrombus volume <35% was the only associated adjunctive anatomical factor, which is in line with Hiraoka et al, 21 who reported that an intraluminal thrombus volume <30% was a predictor of EII (OR 3.52, p=0.011). It is also interesting to note in our study that once a minimum number of patent aortic branches was reached, the presence of any adjunctive patent branches (subgroup 4) was not associated with an independent increased risk of EII or reintervention.…”

The Influence of Preoperative Aneurysmal Thrombus Quantity and Distribution on the Development of Type II Endoleaks with Aneurysm Sac Enlargement After EVAR of AAA

“…4A-C). This correlates with the results of previous studies that revealed an association between type II endoleak and the preoperative thrombus perimeter [7,8,14,18], thrombus diameter [6][7][8]14], thrombus cross-sectional area [6,8,14], and thrombus volume [10,11,13,21]. However, our analysis indicates that volumetry (T Vol /A Vol ratio) is superior to perimeter, diameter, and cross-sectional area in predicting type II endoleak with aneurysm sac enlargement.…”

“…Some authors stated that patients with a larger thrombus burden on preoperative CT were less likely to have a type II endoleak [6][7][8][9][10][11][12][13][14], whereas others groups found no significant association between preoperative thrombus burden and type II endoleak [15][16][17][18]. Unfortunately, the results so far were not comparable due to different endpoints and measuring methods that were used.…”

Endovascular Management of Abdominal Aortic Aneurysms: the Year in Review

“…A recent publication found that a thrombus volume 959 % was a strong predictor of need for re-intervention during follow-up (n = 191), in contrast to prior studies [51]. However, another study (n = 148) found that lower intra-luminal thrombus volume was a predictor for both type II endoleak and sac enlargement post-EVAR [52]. An interesting retrospective study of 312 patients looked at outcomes following limb-crossing, which may be performed to facilitate cannulation of the contralateral limb gate.…”