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Published on: June 11, 2019
Patient Selection and Clinical Indication for Chronic Total Occlusion Revascularization-A Workflow Focusing on
Kevin Hamzaraj1, Andreas Kammerlander1, Mariann Gyöngyösi1
1Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria.
Percutaneous coronary intervention for chronic total occlusion (CTO PCI) is complex. This review guides selecting patients for CTO PCI using non-invasive imaging to assess myocardial viability and optimize outcomes.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Imaging
Background:
- Chronic total occlusion percutaneous coronary intervention (CTO PCI) presents challenges with unclear long-term benefits.
- Current guidelines recommend CTO PCI for symptom relief in patients with high ischemic burden, targeting viable myocardial territories.
- Non-invasive imaging is crucial for selecting CTO PCI candidates, but modality choice lacks clear recommendations.
Purpose of the Study:
- To review current myocardial imaging tools for indicating CTO PCI.
- To propose a systematic, cost-effective approach for myocardial assessment in CTO PCI candidate selection.
Main Methods:
- Comprehensive review of current non-invasive cardiac imaging techniques.
- Analysis of their utility in assessing myocardial viability for CTO PCI.
- Proposal of an experienced-center-based, systematic evaluation process.
Main Results:
- Non-invasive imaging is vital for risk-benefit assessment in CTO PCI.
- No standardized approach exists for pre-CTO PCI myocardial evaluation.
- Physician discretion currently dictates imaging modality selection.
Conclusions:
- A systematic, cost-effective myocardial assessment strategy is needed to guide CTO PCI decisions.
- Experienced centers should encourage comprehensive non-invasive imaging for patient selection.
- Optimizing patient selection through imaging can improve CTO PCI outcomes.
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Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...

