A wireless, implantable sensor for continuous monitoring of blood leakage after endovascular aneurysm repair.

ABSTRACT: Endovascular aneurysm repair, a treatment for abdominal aortic aneurysms, carries the risk of recurrence due to endoleaks following stent graft implantation. Since these leaks do not present with specific symptoms, regular follow-up is necessary; however, now, only imaging-based monitoring is available. This study proposes an ultrathin flexible sensor inserted endovascularly with a stent to detect type I endoleaks, which pose the highest rupture risk. A coplanar capacitive sensor was attached to the stent graft using a specially developed flexible thermal adhesive to monitor blood leakage, without compromising the stent graft's function. It seamlessly folds and unfolds with the stent, allowing implantation through catheter-based procedures. Experimental validation confirmed that the sensor

SUBMITTER: Park SY 

PROVIDER: S-EPMC12487876 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature