To address the heterogeneity of practices, better understand the outcomes of cricital limb theatening ischemia (CLTI) patients after endovascular interventions, and recognize effective endovascular options for infrapopliteal artery revascularization in CLTI, our prospective registry aims to tackle the critical question of whether intensive toe pressure evaluation, guiding repeat revascularization using predetermined thresholds (\<30 mmHg or decrease \>10% from immediate postoperative assessment), could optimize outcomes in patients with CLTI.