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IVUS Guidance

Abstract

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Role of intravascular ultrasound in patients with acute myocardial infarction undergoing percutaneous coronary intervention A volumetric intravascular ultrasound comparison of early drug-eluting stent thrombosis versus restenosis American College of Cardiology Clinical Expert Consensus Document on Standards for Acquisition, Measurement and Reporting of Intravascular Ultrasound Studies (IVUS). A report of the American College of Cardiology Task Force on Clinical Expert Consensus Documents First-in-man evaluation of intravascular optical frequency domain imaging (OFDI) of Terumo: a comparison with intravascular ultrasound and quantitative coronary angiography A Randomized Study of Distal Filter Protection Versus Conventional Treatment During Percutaneous Coronary Intervention in Patients With Attenuated Plaque Identified by Intravascular Ultrasound Intravascular ultrasound-guided drug-eluting stent implantation: An updated meta-analysis of randomized control trials and observational studies The effect of complete percutaneous revascularisation with and without intravascular ultrasound guidance in the drugeluting stent era Temporal Trends in Inpatient Use of Intravascular Imaging Among Patients Undergoing Percutaneous Coronary Intervention in the United States

Review Article2013 Dec 5;170(1):54-63.

JOURNAL:Int J Cardiol. Article Link

Use of IVUS guided coronary stenting with drug eluting stent: a systematic review and meta-analysis of randomized controlled clinical trials and high quality observational studies

Klersy C, Ferlini M, Raisaro A et al. Keywords: IVUS guidance; DES implantation; MACE, mortality; MI

ABSTRACT


BACKGROUND/OBJECTIVES - Long term safety of DES, particularly regarding thrombosis is of concern. The hypothesized underlying mechanisms (stent under expansion, malapposition) could be prevented by IVUS guidance. Aim of this meta-analysis of randomized controlled clinical trials (RCT) and high quality observational cohort studies (HQ-OBS) is to quantify the potential clinical benefit of intravascular ultrasound (IVUS) guidance in drug-eluting stents (DES) implantation.


METHODS - We performed an extensive literature search for full-text articles published in 2003–2013. The primary outcome was the rate of major adverse cardiac events (MACE) in RCT and HQ-OBS; secondary outcomes were death, myocardial infarction (MI), revascularization, thrombosis and post-procedural minimum lumen diameter (MLD). Fixed/random effect relative risks (RRs) or standardized mean difference (SMD) and 95% confidence interval (95% CI) were computed for the meta-analysis.


RESULTS - Thirty-four articles were retrieved from 268 found; of these 3 were RCT and 9 were HQ-OBS; 18,707 patients were enrolled, 1037 in RCT and 17,670 in OBS. Median follow-up was 20 months. IVUS guidance was associated with a significantly lower rate of MACE (RR=0.80, 95% CI 0.71–0.89, p b 0.001), death (RR=0.60, 95% CI 0.48–0.74, p b 0.001), MI (RR=0.59, 95% CI 0.44–0.80, p=0.001) and thrombosis (RR=0.50, 95% CI 0.32–0.80, p=0.007) and larger MLD (SMD=0.15, 95% CI 0.03 to 0.27, p=0.014), but not of revascularization (RR=0.95, 95% CI 0.82–1.09, p=0.75).


CONCLUSIONS - In this meta-analysis, IVUS guidance in DES implantation appears to reduce MACE, mortality and MI, possibly by reducing thrombosis rather than restenosis rate. Patients at high risk for thrombosis might be identified as the best candidate for IVUS guidance.