Chronic total occlusion (CTO) in Japan

Hiroki Watanabe, Takeshi Kimura

Chronic total occlusion (CTO) was once called an unexplored frontier for interventional cardiologists. The need for a high level of technical expertise, longer procedure time, a higher rate of procedure-related complications, and other available treatment options prevented general cardiologists from revascularising CTO. Also, there was a paucity of reliable data supporting the clinical benefit of CTO revascularisation.

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