Browsing by Author "Oemrawsingh, Rohit M. (24172653000)"

Objectives Recent improvements in coronary stent design have focussed on thinner struts, different alloys and architecture, more biocompatible polymers, and shorter drug absorption times. This study evaluates safety and efficacy of a newer generation thin-strut cobalt chromium sirolimus-eluting coronary stent (SES, Ultimaster) in comparison with a second-generation thicker strut stainless steel biolimus-eluting stent (BES, Nobori) in percutaneous coronary intervention (PCI) practice. Methods A propensity score analysis was performed to adjust for differences in baseline characteristics of 8137 SES patients and 2738 BES patients of two PCI registries (e-Ultimaster and NOBORI 2). An independent clinical event committee adjudicated all endpoint-related adverse events. Results The use of SES, as compared with BES was associated with a significantly lower rate of myocardial infarction (MI) (1.2% vs 2.2%; P = 0.0006) and target vessel-related MI (1.1% vs 1.8%; P = 0.002) at 1 year. One-year composite endpoints of all predefined endpoints were lower in patients undergoing SES implantation (target lesion failure: 3.2% vs 4.1%; P = 0.03, target vessel failure: 3.7% vs 5.0%; P = 0.003, patient-oriented composite endpoint 5.7% vs 6.8%; P = 0.03). No significant differences between SES and BES were observed in all-cause death (2.0% vs 1.6%; P = 0.19), cardiac death (1.2% vs 1.2%; P = 0.76) or stent thrombosis (0.6% vs 0.8%; P = 0.43). Conclusions These findings suggest an improved clinical safety and efficacy of a newer generation thin-strut SES as compared with a second-generation thicker strut BES. © 2021 Lippincott Williams and Wilkins. All rights reserved.

Monotherapy with a potent P2Y12 receptor antagonist after 1 month of dual antiplatelet therapy (DAPT) may reduce bleeding in the absence of increased ischaemic events compared to 12-month DAPT in patients with acute coronary syndrome undergoing percutaneous coronary intervention (PCI). PCI guidance with optical coherence tomography (OCT) may enhance stent expansion. COMPARE STEMI ONE is an international, multicentre, open-label, randomised controlled trial. In 1,656 ST-segment elevation myocardial infarction (STEMI) patients, prasugrel monotherapy after 1 month of DAPT, as compared to standard 12-month prasugrel-based DAPT, will be tested for non-inferiority for the primary composite endpoint of net adverse clinical events - defined as all-cause death, myocardial infarction, stroke, or Bleeding Academic Research Consortium Type 3 or 5 bleeding events - at 11 months after randomisation. Furthermore, an ancillary substudy will test the superiority of OCT-guided versus angiography-guided staged complete revascularisation in achieving a larger minimal stent area (MSA) in non-culprit lesions during staged procedures. COMPARE STEMI ONE is the first randomised controlled trial assessing an abbreviated 1-month DAPT regimen followed by prasugrel monotherapy in the context of STEMI. The trial will also study the value of OCT-guided PCI in terms of the MSA of non-culprit lesions and may elucidate potential synergies between intravascular imaging-guided PCI and abbreviated DAPT regimens. (ClinicalTrials.gov: NCT05491200).