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Use of intravascular ultrasound (IVUS) in ambiguous angiograms

Introduction

Intravascular ultrasound (IVUS) can resolve abnormalities within the coronary artery to a degree that is not possible with angiography alone. With an axial resolution of 70-200 μm and lateral resolution of 200-400 μm, IVUS can provide information on arterial wall and luminal composition that can change clinical management decisions.

Delayed Coronary Occlusion After Transcatheter Aortic Valve Implantation: Implications for New Transcatheter Heart Valve Design and Patient Management

Transcatheter aortic valve implantation (TAVI) has undoubtedly revolutionised the treatment of severe aortic stenosis and has become the preferred treatment option for patients at increased surgical risk.1,2 Although outcomes have improved and complications reduced over time, certain potentially catastrophic complications remain.3,4 Coronary obstruction has long been a feared complication and is classically recognised to occur in the acute setting just after valve deployment.

ORBITA: What Goes Around, Comes Around… Or Does It?

Medical therapy has been the primary treatment for stable angina since nitroglycerin was first used in 1878. However, since the first successful percutaneous coronary intervention (PCI) procedure was performed in 1977, the role of PCI in patients with stable coronary artery disease (CAD) has been the subject of much study. Numerous trials have shown no reduction in death or myocardial infarction.1–5 However, these trials suggest that PCI is maybe more effective for managing angina symptoms than medical therapy alone.

Culprit Vessel Only Versus Complete Revascularisation in Patients with ST-Segment Elevation Myocardial Infarction – Should we Stay or Stage?

For ST-segment elevation myocardial infarction (STEMI), there is currently no doubt that primary percutaneous coronary intervention (PPCI) of the infarct related artery (IRA) is the preferred reperfusion strategy.1 In about 50 % of cases, STEMI is associated with multivessel coronary artery disease (MVCAD), defined as a ≥50 % stenosis in at least one non-infarct related epicardial coronary artery (N-IRA, Figure 1).2,3 Like many other facto