A case report on retrograde approach for recanalization of stumpless chronic total occlusion (CTO)Dayu Wang, MM1; Ruibin Wei, MM1; Junteng Zheng, MM1; Zhen Liu, MM 1; Jian Hou, PhD1#;Jianhao Li, MM1#;1 Department of Cardiology, The Affiliated Panyu Central Hospital of Guangzhou Medical University, Guangzhou, China#Correspondence to:Jian Hou, Department of Cardiology, The Affiliated Panyu Central Hospital of Guangzhou Medical University, Guangzhou, China 511400, GD, China; E-mail: chnhouj@163.comJianhao Li, Department of Cardiology, The Affiliated Panyu Central Hospital of Guangzhou Medical University, Guangzhou, China 511400, GD, China; E-mail: pydoctor_ljh@163.com