CBS 2019
CBSMD教育中心
中 文

左主干支架

Abstract

Recommended Article

Operator Experience and Outcomes After Left Main Percutaneous Coronary Intervention Impact of Lesion Preparation Strategies on Outcomes of Left Main PCI: The EXCEL Trial Sex differences in left main coronary artery stenting: Different characteristics but similar outcomes for women compared with men Quality of Life after Everolimus-Eluting Stents or Bypass Surgery for Treatment of Left Main Disease Provisional versus elective two-stent strategy for unprotected true left main bifurcation lesions: Insights from a FAILS-2 sub-study Current treatment of significant left main coronary artery disease: A review Long-term outcomes following mini-crush versus culotte stenting for the treatment of unprotected left main disease: insights from the Milan and New-Tokyo (MITO) registry Second vs. First generation drug eluting stents in multiple vessel disease and left main stenosis: Two-year follow-up of the observational, prospective, controlled, and multicenter ERACI IV registry

Original Research2009 Jun;2(3):167-77.

JOURNAL:Circ Cardiovasc Interv. Article Link

Impact of intravascular ultrasound guidance on long-term mortality in stenting for unprotected left main coronary artery stenosis

Park SJ, Kim YH, MAIN-COMPARE Investigators et al. Keywords: IVUS; unprotected left main coronary artery stenosis; PCI; outcome

ABSTRACT


BACKGROUND - Although intravascular ultrasound (IVUS) guidance has been useful in stenting for unprotected left main coronary artery stenosis, its impact on long-term mortality is still unclear.


METHODS AND RESULTS - In the MAIN-COMPARE registry, patients with unprotected left main coronary artery stenosis in a hemodynamically stable condition underwent elective stenting under the guidance of IVUS (756 patients) or conventional angiography (219 patients). Patients with acute myocardial infarction were excluded. The 3-year outcomes between the 2 groups were primarily compared using propensity-score matching in the entire and separate populations according to stent type. In 201 matched pairs of the overall population, there was a tendency of lower risk of 3-year morality with IVUS guidance compared with angiography guidance (6.0% versus 13.6%, log-rank P=0.063; hazard ratio, 0.54; 95% CI, 0.28 to 1.03; Cox-model P=0.061). In particular, in 145 matched pairs of patients receiving drug-eluting stent, the 3-year incidence of mortality was lower with IVUS guidance as compared with angiography guidance (4.7% versus 16.0%, log-rank P=0.048; hazard ratio, 0.39; 95% CI, 0.15 to 1.02; Cox model P=0.055). In contrast, the use of IVUS guidance did not reduce the risk of mortality in 47 matched pairs of patients receiving bare-metal stent (8.6% versus 10.8%, log-rank P=0.35; hazard ratio, 0.59; 95% CI, 0.18 to 1.91; Cox model P=0.38). The risk of myocardial infarction or target vessel revascularization was not associated with the use of IVUS guidance.

CONCLUSIONS - Elective stenting with IVUS guidance, especially in the placement of drug-eluting stent, may reduce the long-term mortality rate for unprotected left main coronary artery stenosis when compared with conventional angiography guidance.