An Approach to Non-left Main Bifurcation Lesions: A Contemporary Review
Ali Nazmi Calik1, F Aaysha Cader2, Erik Rafflenbeul3
1Department of Cardiology, University of Health Sciences, Dr Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital Istanbul, Turkey.
Insights
Treating complex coronary artery bifurcations requires understanding stenting strategies. This review explores provisional versus two-stent approaches for optimal patient outcomes in bifurcation percutaneous coronary intervention.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Biomedical Engineering
Background:
- Coronary artery bifurcations are susceptible to atherosclerotic lesions due to low wall shear stress.
- Percutaneous treatment of bifurcation lesions presents significant challenges in complex coronary interventions.
Purpose of the Study:
- To emphasize the importance of bifurcation stenting philosophy.
- To present an individualized algorithmic approach for treating non-left main coronary bifurcation lesions.
- To discuss current scientific evidence on stenting techniques and intracoronary imaging for percutaneous coronary intervention.
Main Methods:
- Review of recent scientific evidence on bifurcation stenting strategies.
- Analysis of advantages and disadvantages of provisional side branch (SB) stenting versus upfront two-stent techniques.
- Evaluation of the role of intracoronary imaging in optimizing percutaneous coronary intervention outcomes.
Main Results:
- The choice between provisional SB and upfront two-stent strategies remains debated, especially for complex bifurcations with diseased side branches supplying critical myocardial territories.
- An individualized algorithmic approach is crucial for selecting the optimal treatment strategy.
- Intracoronary imaging plays a vital role in enhancing outcomes for bifurcation percutaneous coronary intervention.
Conclusions:
- Understanding bifurcation stenting philosophy is essential for effective treatment.
- An individualized approach, considering lesion complexity and myocardial territory, guides optimal strategy selection.
- Further research and application of intracoronary imaging can improve percutaneous coronary intervention outcomes in coronary artery bifurcations.
Abstract:
Bifurcated anatomical locations in the arterial tree, such as coronary artery bifurcations, are prone to develop obstructive atherosclerotic lesions due to the pro-atherogenic low wall shear stress. The percutaneous treatment of bifurcation lesions is among the most challenging complex coronary interventions, including different multistep stenting strategies. Even though provisional side branch (SB) stenting is recommended as the primary approach in most cases, the debate continues between provisional SB and upfront two-stent strategies, particularly in complex bifurcations consisting of a significantly diseased SB that supplies a crucial myocardial territory. This review will highlight the importance of understanding the bifurcation philosophy and provide an individual algorithmic approach to find the optimal treatment strategy for each patient with a non-left main coronary bifurcation lesion. Considering the most recent scientific evidence, the advantages and disadvantages of each stenting technique and the role of intracoronary imaging to optimize bifurcation percutaneous coronary intervention outcomes will be discussed.
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