Collapse of a self-expanding stent in a nonagenarian patient with Leriche syndrome

Figure 1Pre-procedure computed tomography (left, plain; right, contrast-enhanced) and aortography. (A): Sagittal images show complete occlusion with heavy calcification from the infrarenal abdominal aorta to the bilateral iliac arteries; (B): axial images at the level of the terminal aorta show fulfilled calcification within the abdominal aorta; and (C): aortography reveals complete occlusion from the infrarenal abdominal aorta to the bilateral iliac arteries (red line).

Figure 2Post-procedure intravascular ultrasound and aortography. (A): Intravascular ultrasound show well-dilated stents without deformation; and (B): final aortography confirms adequate revascularization.

Figure 3Contrast-enhanced computed tomography 18 months following revascularization. (A): Sagittal images show the stent collapse filled with a thrombus in the heavily calcified abdominal aorta; and (B–D): axial images of slices at each level.

Figure 4Radiographs showing the lumbar spine and implanted stents 18 months following revascularization. (A): Frontal view showing lumbar spondylosis (red line; implanted stents); (B): lateral view in the supine position (red line; implanted stents); and (C): lateral view in a sitting position: the lumbar spine appears to be compressing the implanted stents (red line; implanted stents).