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03.08.2017 | Original Paper | Ausgabe 12/2017

Clinical Research in Cardiology 12/2017

Impact of left main coronary artery disease on long-term mortality in patients undergoing drug-eluting stent implantation

Zeitschrift:
Clinical Research in Cardiology > Ausgabe 12/2017
Autoren:
Se Hun Kang, Cheol Whan Lee, Seunghee Baek, Pil Hyung Lee, Jung-Min Ahn, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Seong-Wook Park, Seung-Jung Park

Abstract

Background

Limited data are available on long-term mortality according to the extent of coronary artery disease (CAD) in patients undergoing percutaneous coronary intervention (PCI) with drug-eluting stent (DES). We assessed long-term mortality DES implantation according to the extent of CAD and the impact of left main CAD alone on mortality among patients undergoing PCI with DES.

Methods and results

A total of 18,716 patients were pooled from real-world PCI registries. The primary outcome was death from any cause. The median follow-up duration was 47.1 (interquartile range 32.8–57.9) months. The presence of left main CAD [adjusted hazard ratio (HR) 1.24, 95% confidence interval (CI) 1.05–1.46, p = 0.012] and the extent of diseased vessels (adjusted HR 1.17, 95% CI 1.08–1.27, p < 0.001) significantly increased the risk of all-cause mortality. Left main CAD alone was associated with a risk of all-cause mortality similar to one- and two-vessel CAD, whereas it was associated with a significantly lower risk of mortality compared with three-vessel CAD (adjusted HR 0.42, 95% CI 0.18–0.98, p = 0.044). Among patients with left main CAD, the risk of mortality tended to increase in proportion with the number of concomitant vessel CAD, but it did not achieve statistical significance.

Conclusions

Among patients undergoing DES implantation, the risk of mortality increased in a stepwise manner according to the extent of coronary CAD. Left main CAD alone was associated with a risk of long-term mortality similar to one- and two-vessel CAD.

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