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Prognostic Implication of Thermodilution Coronary Flow Reserve in Patients Undergoing Fractional Flow Reserve Measurement Physiologic Characteristics and Clinical Outcomes of Patients With Discordance Between FFR and iFR Gut microbiota induces high platelet response in patients with ST segment elevation myocardial infarction after ticagrelor treatment Bench testing and coronary artery bifurcations: a consensus document from the European Bifurcation Club Evolving understanding of the heterogeneous natural history of individual coronary artery plaques and the role of local endothelial shear stress Relationship between fractional flow reserve value and the amount of subtended myocardium Bosentan therapy in patients with Eisenmenger syndrome: a multicenter, double-blind, randomized, placebo-controlled study Impact of myocardial supply area on the transstenotic hemodynamics as determined by fractional flow reserve Predictors of Left Main Coronary Artery Disease in the ISCHEMIA Trial Will Pulmonary Artery Denervation Really Have a Place in the Armamentarium of the Pulmonary Hypertension Specialist?

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.