The phenomenon of stentgraft “shortening” during endovascular stentgraft implantation into an abdominal aortic aneurysm in cases involving significant tortuosity of the aorta and iliac arteries.

Introduction: One of the main problems with implantation stent-graft (STG) in abdominal aortic aneurysm (AAA) remains its proper fit. Minor differences distances from relevant structures can result life-threatening complications. This article aims to show problem shortening during implantation. occurs case significant tortuosity aorta vessels and iliac arteries. Our study has found a correlation between vessel erroneous results preoperative sizing (using centerline). The new measurement system developed (along long curves) seems correlate better intraoperative images. Material methods: involved evaluation 70 patients sized classically use described technique, then operated on EVAR technique. In all patients, stent-grafts were central lumen line) along curvature line vessels. dimensions selected according standard method (classical sizing), fit STG relation calibrated catheter (“pigtail”), final postoperative was considered be result. There 44 men (62,8%) 26 women (37,2 %) group. mean age 74 years. Eighty-nine percent classified as NYHA (Class I-II) 11 % Class III. Results: Average arteries using centerline 201.8 mm, average based 222.2 mm. 218.1 analysis showed measurements (centerline vessel): Z = 7.17; p < 0.001; r 0.87. Conclusions: made curves is more accurate than centerline. underestimated (it indicates smaller value actual measurement).