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Impact of complete revascularization with percutaneous coronary intervention on survival in patients with at least
Renato Valenti1, Angela Migliorini, Umberto Signorini
1Division of Cardiology, Careggi Hospital, Viale Pieraccini, I-50134 Florence, Italy.
Insights
Successful drug-eluting stent percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) improves long-term cardiac survival. This survival benefit is most pronounced in patients with multivessel disease who achieve complete revascularization.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Medicine
Background:
- Chronic total occlusion (CTO) poses a significant challenge in coronary artery disease management.
- Percutaneous coronary intervention (PCI) using drug-eluting stents (DES) is a primary revascularization strategy for CTO.
- The long-term survival impact of successful CTO-PCI remains an area of active investigation.
Purpose of the Study:
- To evaluate the effect of successful drug-eluting stent-supported PCI on long-term survival in patients with CTO.
- To compare cardiac survival rates between successful and failed CTO-PCI procedures.
- To identify patient subgroups benefiting most from successful CTO-PCI.
Main Methods:
- Retrospective analysis of consecutive patients undergoing PCI for at least one CTO between 2003 and 2006.
- Stratification of patients into successful (71%) and failure CTO-PCI groups.
- Comparison of long-term cardiac survival, considering factors like multivessel disease and complete revascularization.
Main Results:
- Successful CTO-PCI was achieved in 71% of patients and 68% of lesions.
- Long-term cardiac survival was significantly higher in the successful CTO-PCI group (91.6%) compared to the failure group (87.4%; P = 0.025).
- Patients with multivessel disease and complete revascularization in the success group showed superior survival rates (94.0%) versus incomplete revascularization (83.8%; P < 0.001).
Conclusions:
- Successful drug-eluting stent-supported CTO-PCI significantly improves long-term cardiac survival.
- The survival benefit is particularly evident in patients with multivessel disease who undergo complete revascularization.
- CTO-PCI success is a critical determinant of favorable long-term outcomes in selected patient populations.
Aims:
This study sought to determine the impact on survival of successful drug-eluting stent-supported percutaneous coronary intervention (PCI) for chronic total occlusion (CTO).
Methods And Results:
Comparison of long-term cardiac survival of consecutive patients who underwent PCI for at least one CTO and who were stratified into successful and failure procedures. From 2003 to 2006, 486 patients underwent PCI for 527 CTO. CTO-PCI was successful in 344 patients (71%) and 361 lesions (68%). Multivessel PCI was performed in 62% in the CTO-PCI failure group and in 71% in the CTO-PCI success group (P = 0.062). Cardiac survival rate was higher in the CTO-PCI success group compared with CTO-PCI failure group (91.6 +/- 2.0 vs. 87.4 +/- 2.9%; P = 0.025), in patients with multivessel disease and CTO-PCI success compared with CTO-PCI failure (91.4 +/- 2.2 vs. 86.6 +/- 3.1%; P = 0.021), and in patients with complete revascularization when compared to patients with incomplete revascularization (94.0 +/- 1.7 vs. 83.8 +/- 3.6%; P < 0.001).
Conclusion:
Successful CTO-PCI confers a long-term survival benefit. Improvement in survival is driven by the differences in the outcome of patients with multivessel disease and who were completely revascularized.
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