CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

2010 ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines Does Risk of Premature Discontinuation of Dual-Antiplatelet Therapy Following PCI Attenuate With Increasing Age? Endocardium Minimally Contributes to Coronary Endothelium in the Embryonic Ventricular Free Walls Impact of bleeding during dual antiplatelet therapy in patients with coronary artery disease Drug-coated balloon for treatment of de-novo coronary artery lesions in patients with high bleeding risk (DEBUT): a single-blind, randomised, non-inferiority trial Trial Design Principles for Patients at High Bleeding Risk Undergoing PCI: JACC Scientific Expert Panel Efficacy and Safety of Ticagrelor Monotherapy in Patients Undergoing Multivessel PCI Benefit-risk profile of extended dual antiplatelet therapy beyond 1 year in patients with high risk of ischemic or bleeding events after PCI Acute Aortic Syndrome Revisited: JACC State-of-the-Art Review Independent Association of Lipoprotein(a) and Coronary Artery Calcification With Atherosclerotic Cardiovascular Risk

Original Research2014 Jan;7(1):29-36.

JOURNAL:JACC Cardiovasc Interv. Article Link

Impact of coronary anatomy and stenting technique on long-term outcome after drug-eluting stent implantation for unprotected left main coronary artery disease

Tiroch K, Mehilli J, Byrne RA et al. Keywords: CABG; DES; ISR; LCX; LMCA; MACE; MI; PCI; SYNTAX score; TBL; TLR; coronary artery bypass graft surgery; drug-eluting stent(s); in-stent restenosis; left circumflex coronary artery; left main; left main coronary artery; major adverse cardiac event(s); myocardial infarction; percutaneous coronary intervention; stenting technique; target lesion revascularization; true bifurcation lesion; uLMCA; unprotected left main coronary artery

ABSTRACT


OBJECTIVESThis study sought to evaluate the impact of anatomic and procedural variables on the outcome of the unprotected left main coronary artery (uLMCA) itself after drug-eluting stent (DES) implantation.


BACKGROUNDThere is a controversial debate regarding when and how to perform percutaneous coronary intervention (PCI) for an uLMCA stenosis.

METHODSThis analysis is based on a randomized study of 607 patients undergoing PCI for uLMCA, randomized 1:1 to receive paclitaxel- or sirolimus-eluting stents. We evaluated the impact of the SYNTAX score, uLMCA anatomy, and stenting technique on in-stent restenosis (ISR), target lesion revascularization (TLR), and the 3-year outcomes.

RESULTSThe 3-year cardiac mortality rate was 5.8%; 235 (39%) patients had a true bifurcation lesion (TBL), and the median SYNTAX score was 27. TBL was associated with a higher need for multiple stents (72% vs. 37%, p < 0.001). TBL was a significant predictor of ISR (23% vs. 14%, p = 0.008) and for TLR (18% vs. 9%, p < 0.001). The need for multiple stents was a predictor of ISR (22% vs. 13%, p = 0.005) and for TLR (16% vs. 9%, p = 0.005). Culotte stenting showed better results compared with T-stenting for ISR (21% vs. 56%, p = 0.02) and for TLR (15% vs. 56%, p < 0.001). We observed a significant association between uLMCA-TLR and SYNTAX scores (9.2% for scores ≤ 22, 14.9% for scores 23 to 32, and 13.0% for scores ≥ 33, p = 0.008).

CONCLUSIONS PCI of uLMCA lesions with DES is safe and effective out to 3 years. TBL and multiple stents were independent predictors for ISR. In the multivariate analysis, independent predictors for TLR were TBL, age, and EuroSCORE (European System for Cardiac Operative Risk Evaluation). (Drug-Eluting-Stents for Unprotected Left Main Stem Disease [ISAR-LEFT-MAIN]; NCT00133237).

Copyright © 2014 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.