PCI optimization with lesion selection and preparation is a crucial approach to improving the outcomes of percutaneous interventions, particularly in complex lesions. Ultimately, PCI success is determined not only by stent placement, but also by appropriate lesion selection, careful anatomical and physiological assessment, and lesion preparation prior to stent placement.
Why lesion selection is important
Not all coronary stenoses need to be treated the same. Lesion selection helps physicians determine whether a lesion is truly physiologically significant, not just narrowing on angiography. An approach based on intracoronary physiology and intravascular imaging can help select lesions most likely to benefit from revascularization.
What is lesion preparation?
Lesion preparation is the process of preparing the lesion before stent placement to optimize stent expansion and reduce the risk of complications. This can include balloon pre-dilation, calcification management, and device size adjustments based on lesion characteristics. In calcified lesions, adequate preparation is crucial because calcium can inhibit stent expansion and affect long-term outcomes.
PCI optimization principles
PCI optimization typically involves three key steps: selecting a suitable lesion, preparing the lesion with appropriate technique, and ensuring a good stent outcome through post-deployment evaluation. Data from the AIDA trial showed that a careful implementation strategy, including pre- and post-dilatation, was associated with better outcomes, while the use of an excessively large pre-dilatation balloon was associated with an increased risk of lesion-related events. This demonstrates that optimization is not simply about being more aggressive; it must be precise.
The role of imaging and physiology
Intravascular imaging such as IVUS or OCT helps assess vessel size, plaque characteristics, and calcification degree more accurately than angiography alone. Conversely, coronary physiology approaches help assess whether the lesion is truly causing ischemia. The combination of the two often provides a stronger basis for PCI decisions and optimizes outcomes.
Challenges in complex lesions
Calcified lesions, bifurcations, and long lesions often present major challenges in PCI because they are more difficult to prepare and carry a higher risk of suboptimal stent expansion. In these situations, the choice of preparation device and technique should be individualized, not uniform across all cases. An overly simplistic approach can increase the risk of restenosis, target lesion revascularization, or procedural complications.
Practical conclusions
In practice, optimizing PCI relies on a combination of appropriate lesion selection, appropriate preparation, and meticulous outcome evaluation . This approach helps improve the success of the procedure while reducing the risk of future recurrence. In the modern PCI era, the quality of the decision-making before stent placement is often as important as the stent placement itself.
The article was written by Dr. Dede Moeswir Sp.PD-KKV, FINASIM, FAPSC, FSCAI (Internist – Cardiovascular Consultant at EMC Pulomas Hospital).