Successful Endovascular Treatment for Thrombotic In-Stent Iliac Occlusion with In-House-Devised Optimo®-Like Embolic Protection System

In practical settings of endovascular treatment, we sometimes encounter difficulties in treating lesions with massive thrombi, which may cause distal thromboembolism.
We encountered a case of severe critical limb ischemia involving in-stent iliac occlusion with massive thrombi. We had to overcome the critical issue of how to treat the massive thrombi in the iliac artery while avoiding thromboembolism. Therefore, we devised a very simple but possibly very useful protection system without any special devices based on the concept of the Optimo® balloon-tipped occlusion catheter.
Although various endovascular treatment (EVT) devices and techniques have since been developed, little tips and tricks during EVT procedures are sometimes markedly useful.