Delayed upstream migration of an iliac stent.
BACKGROUND
Stent migrations are described after peripheral endovascular treatments. We report a case of an unusual iliac stent movement after a successful angioplasty.


METHODS
An occlusive distal intimal flap after aorto-iliac endoarterectomy was successfully fixed by stenting of the left external iliac artery. One month later, the patient was readmitted due to contralateral limb acute ischemia. Angiography revealed a right iliac artery thrombosis due to upstream stent migration from the left external iliac artery into the right common iliac artery. The patient underwent a combined surgical and endovascular rescue technique.


CONCLUSIONS
Turbulent and pulsatile flow, associated with wall remodelling may explain this unexpected complication.
Civilini
E
E
Scientific Institute H. San Raffaele, Vita-Salute University-School of Medicine, Via Olgettina 60, 20132 Milan, Italy. civilini.efrem@hsr.it
Melissano
G
G
Baccellieri
D
D
Chiesa
R
R
D015901:Angiography, Digital Subtraction; D017130:Angioplasty / Q000009:adverse effects* / Q000295:instrumentation; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging / Q000601:surgery*; D004691:Endarterectomy; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006801:Humans; D007083:Iliac Artery / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D015607:Stents / Q000009:adverse effects*; D016896:Treatment Outcome