Preoperative Relative Abdominal Aortic Aneurysm Thrombus Burden Predicts Endoleak and Sac Enlargement After Endovascular Anerysm Repair

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.…”

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

“…15 Although adverse effects of intraluminal thrombus were reported in some studies, not only area but volume of thrombus should be calculated for more faithful evaluation. As Sadek et al 16 similarly reported that greater than 50% thrombus can predict absence of postoperative endoleak, we think the percentage of ITV was a more important index as a predictor of residual type II endoleak and sac enlargement rather than other parameters including aneurysmal sac size. On the other hand, patient age was a differently independent risk factor for sac enlargement after EVAR.…”

Influencing Factors for Abdominal Aortic Aneurysm Sac Shrinkage and Enlargement after EVAR: Clinical Reviews before Introduction of Preoperative Coil Embolization

“…Sadek, et al focused on preoperative CT variables to predict aneurysmal sac behavior, and identified that the proportion of thrombus inside the aneurysmal sac was significantly associated with sac shrinkage and enlargement after EVAR. 18) In their series, aneurysms with a large thrombus burden are less likely to grow, compared with those with relatively little thrombus in their series. In the present study, we defined the proportion of thrombus inside the aneurysmal sac as % mural thrombus simply calculated by (MAOD-MALD)/MAOD × 100, and multivariate analysis demonstrated that % mural thrombus <36.6%, and patent IMA on preoperative CT were significant predictors of PT2EL after EVAR.…”