Review of latest researches of proximal optimization technique for coronary bifurcation lesions

Proximal optimization technique (POT) improves stent malapposition and deformation in coronary bifurcation lesions and brings definite clinical benefits. However, it is difficult to accurately locate the POT balloon in clinical practice. Furthermore, there still exist controversies over the combination of techniques such as rePOT, POKI and PBED. In this review, we made a comprehensive summary of the latest studies about POT.