It was reported that premature deployment and difficulty positioning the stent, occurred.The 99% stenosed target lesion was located in the moderately tortuous left renal artery.A 4.0mm x 19mm x 150cm express vascular sd stent was advanced for treatment.However, the stent began to expand from the distal end and slipped to the aortic side more than expected.The device was positioned out of the original intended location of the left renal artery and was fully expanded.The procedure was completed with implantation of an additional stent to cover the lesion.No patient complications were reported.
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