RT Journal Article SR Electronic A1 Jacobson, Anne T1 Chronic Coronary Total Occlusions: State-of-the-Art JF MD Conference Express YR 2009 FD SAGE Publications VO 8 IS 8 SP 9 OP 11 DO 10.1177/155989770900800802 UL http://mdc.sagepub.com/content/8/8/9.abstract AB Despite technological advances and improved outcomes with percutaneous coronary intervention (PCI), treatment of chronic total occlusion (CTO) of coronary arteries remains a challenge. However, new techniques, such as retrograde wiring, have improved procedural success rates and clinical outcomes in patients who undergo PCI of a CTO. This article discusses data that support the use of PCI in patients with CTO and described different approaches to CTO PCI around the world.