Percutaneous Techniques for Managing Maldeployed or Migrated Stents

Abstract

Percutaneous management of migrated or maldeployed endovascular stents is highly effective with few complications. On the basis of our findings, these techniques should be considered the therapy of choice.

Extravascular stent management for migration of left renal vein endovascular stent in nutcracker syndrome

“…Hartung et al described a LRV stent that migrated into the retro hepatic inferior vena cava; an attempt to retrieve it with a Goose Neck failed when the stent took a transversal orientation after 5 cm, and further attempts also failed [ 4 ]. A patient with a nitinol stent is difficult to manage percutaneously because of its inherent characteristics and probable endothelialization of the stent in 1 year, which makes the procedure more challenging [ 11 ]. In our previous case, one stent migrated into the right atrium and the patient required surgery after unsuccessful percutaneous removal [ 3 ].…”

Successful treatment of type I endoleak of common iliac artery with balloon expandable stent (Palmaz XL stent) during endovascular aneurysm repair

“…Malposition of a hand-mounted balloon-expandable stent during deployment is not an unusual complication [6,7]. To prevent malposition and increase the accuracy of stent deployment, the following techniques can be beneficial [6,7]. First, the sheath provides a means to control the sequence of the balloon expansion, and consequently, stent deployment.…”

Migration of superior vena cava stent

“…Stent migration can result in potentially serious complications such as lodgement in the right ventricle [ 10 - 12 ]. Percutaneous techniques for rescuing dislocated endovascular stents can be effective with few complications in most cases [ 13 ]. In extreme cases; displaced stents could be left in-situ with no disastrous consequences [ 14 ].…”