Total arch replacement and open stent graft implantation using a newly developed stent graft: Report of a case

Abstract

We experienced a case in which a total arch replacement and an open stent implantation were performed for a distal aortic arch aneurysm using a newly developed stent graft (Ube CL-0201; Ube Medical, Tokyo, Japan). This novel stent graft is composed of a woven polyester graft and a nickel-titanium alloy stent, and has been under evaluation in clinical trials at four institutions in Japan, including our hospital, since 2008. The patient was weaned from the respirator on the day after surgery, and 9 months have passed since the surgery with no complications. A follow-up computed tomography scan showed that the stent part was sufficiently open, and no complications, such as an endoleak, have been observed.

Biomedical Applications of Titanium Alloys: A Comprehensive Review

“…For stents, the first few months after implantation appear to be the most critical, as survival rates as low as 87% were reported within the first year [ 340 , 341 , 342 , 343 , 344 , 345 ]. Most of these early failures appear to be caused by misplacement and migration or in-stent restenosis, but mechanical failures (fractures or inadequate expansions) and infections were also frequently reported.…”

“…Low survival rates at about 3 years after implantation were also occasionally reported for stents, and this is again associated with the specific patient cohorts [340][341][342][343][344][345]. Patients requiring a stent often exhibit multiple risk factors that increase the likelihood of implant failure, including conditions such as obesity, diabetes, hypertension, smoking, and a history of cardiovascular diseases [354,355].…”