Adherence to Guideline Recommendations and Clinical Outcomes of Different Stenting Techniques in Non-Left Main...

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Guidelines

Background:

• Percutaneous coronary intervention (PCI) for coronary bifurcation lesions (CBLs) presents technical challenges.
• The optimal stenting strategy for CBLs remains a subject of debate.
• The impact of adhering to current guideline recommendations on clinical outcomes in PCI of CBLs requires clarification.

Purpose of the Study:

• To investigate the influence of guideline adherence on clinical outcomes in patients undergoing PCI for CBLs.
• To compare the effectiveness of different stenting techniques (provisional vs. 2-stent) in relation to guideline compliance.

Main Methods:

• Retrospective, multicenter observational registry of 1407 patients with true CBLs undergoing PCI.
• Evaluation of provisional and 2-stent techniques based on current guideline recommendations.
• Primary endpoint: target lesion failure (TLF), a composite of target lesion revascularization (TLR), target vessel myocardial infarction (TVMI), and cardiac death.

Main Results:

• Overall TLF, TLR, TVMI, and cardiac death rates were similar between provisional and 2-stent techniques.
• When guidelines were not followed, TLF was higher with 2-stent (16.1%) vs. provisional (9.1%).
• When guidelines were followed, TLF was lower with 2-stent (4.7%) vs. provisional (9.1%), driven by reduced TLR and TVMI.

Conclusions:

• Adherence to current guideline recommendations is the primary determinant of clinical outcomes in PCI of CBLs.
• The choice of stenting technique (provisional vs. 2-stent) is less critical than guideline compliance.
• Following guidelines significantly reduces target lesion failure, target lesion revascularization, and target vessel myocardial infarction.