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Self-expandable sirolimus-eluting stents compared to second-generation drug-eluting stents for the treatment of the left main: A propensity score analysis from the SPARTA and the FAILS-2 registries Restricted access Mortality After Repeat Revascularization Following PCI or CABG for Left Main Disease: The EXCEL Trial Left main coronary angioplasty: early and late results of 127 acute and elective procedures Abnormalities in 3-Dimensional Left Ventricular Mechanics With Anthracycline Chemotherapy Are Associated With Systolic and Diastolic Dysfunction Impact of large periprocedural myocardial infarction on mortality after percutaneous coronary intervention and coronary artery bypass grafting for left main disease: an analysis from the EXCEL trial Long-term safety and effectiveness of unprotected left main coronary stenting with drug-eluting stents compared with bare-metal stents Instantaneous Wave-free Ratio versus Fractional Flow Reserve to Guide PCI Medical Therapy for CTEPH: Is There Still Space for More? Unprotected Left Main Disease: Indications and Optimal Strategies for Percutaneous Intervention Angiographic versus functional severity of coronary artery stenoses in the FAME study fractional flow reserve versus angiography in multivessel evaluation

Review ArticleJuly 27, 2017

JOURNAL:Oncotarget. Article Link

Intravascular ultrasound guidance in drug-eluting stents implantation: a meta-analysis and trial sequential analysis of randomized controlled trials

Qian C, Feng H, Cao J et al. Keywords: intravascular ultrasound, drug-eluting stents, meta-analysis, trial sequential analysis, randomized controlled trials

ABSTRACT

OBJECTIVES - Previous evidence suggested that intravascular ultrasound (IVUS) guidance could improve outcomes after drug-eluting stents (DES) placement, largely driven by data from observational studies. We, therefore, performed a meta-analysis and trial sequential analysis of randomized controlled trials to overcome this limitation.


RESULTS -  The retrieval process yielded 7 RCTs with 3,192 patients. Compared to the angiography guidance, IVUS-guided DES implantation was associated with a significant reduction in the major adverse cardiac events (MACE) (OR 0.60, 95% CI 0.46-0.78; P < 0.001), target vessel revascularization (OR 0.60, 95% CI 0.40-0.91; P = 0.02) and target lesion revascularization (OR 0.60, 95% CI 0.42-0.85; P = 0.004). IVUS and conventional angiography guidance showed similar incidence of stent thrombosis (ST) (OR 0.56, 95% CI 0.25-1.23; P = 0.15), cardiac death (OR 0.47, 95% CI 0.19-1.15; P = 0.10) and myocardial infarction (OR 0.85, 95% CI 0.45-1.61; P = 0.62). Trial sequential analysis revealed a definite reduction in MACE with IVUS guidance without solid evidence for ST.


MATERIALS AND METHODS - A systematical literature search was performed in the databases of PubMed, the Cochrane Library and ClinicalTrials.gov, complemented with reference screening from relevant articles. Primary endpoints were MACE and ST.


CONCLUSIONS - IVUS-guided DES implantation is associated with a lower risk of MACE and revascularization without conclusive benefits for ST.