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Published on: July 21, 2013
Treatment of the chronic total occlusion: a call to action for the interventional community
Mauro Carlino1, Caroline J Magri, Barry F Uretsky
1San Raffaele Scientific Institute, Milan, Italy.
Insights
Recanalization of chronic total occlusions (CTO) is beneficial but underutilized. This review examines the efficacy and safety of CTO percutaneous coronary intervention (PCI) to encourage appropriate clinical use.
Area of Science:
- Interventional Cardiology
- Cardiovascular Medicine
Background:
- Chronic total occlusions (CTOs) are common in coronary artery disease.
- Percutaneous coronary intervention (PCI) for CTOs is technically challenging, leading to underutilization.
- Misconceptions about CTO PCI efficacy persist, akin to the "Fox and the Grapes" fable.
Purpose of the Study:
- To review current evidence on the efficacy and safety of CTO PCI.
- To address the underutilization of CTO recanalization procedures.
- To encourage appropriate use of CTO PCI based on data.
Main Methods:
- Review of existing data on CTO percutaneous coronary intervention (PCI).
- Analysis of efficacy and safety outcomes in the drug-eluting stent era.
- Discussion of current challenges and future research needs.
Main Results:
- Substantial evidence supports the benefits of CTO recanalization.
- CTO PCI efficacy and safety are well-established in the current era.
- Underutilization remains a significant issue despite evidence.
Conclusions:
- CTO PCI is a valuable treatment option when indicated.
- Further research is needed in specific areas of CTO intervention.
- Interventional cardiologists should embrace CTO PCI based on current evidence.
Abstract:
There is substantial evidence that recanalization of a chronic total occlusion is beneficial; nonetheless, it is generally underutilized in clinical practice. We consider the Aesop's fable of the "Fox and the Grapes" as analogous to the current situation in interventional cardiology. The technical challenges in achieving CTO recanalization has led interventionalists, clinical cardiologists, and sometimes even patients to believe that CTO recanalization is not effective, and, therefore, not needed. This perspective reviews available data regarding efficacy and safety of CTO percutaneous coronary intervention (PCI) in the current drug-eluting stent era, discusses areas where more studies are required, and encourages the interventional community to utilize CTO PCI where appropriate based on current evidence.
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