Second generation drug-eluting stents have lower frequency of thrombotic complications and in-stent restenosis. While clinical results have significantly improved, having a 2-3% annual rate of these complications within the first year after angioplasty is still worrisome. This resulted in the development of stents with struts <70 µm (ultrathin), with bioresorbable polymer and abluminal cover. Stents…
Is IVUS Guided PCI a Common Technique?
We all know the benefits of ultravascular ultrasound (IVUS) in the development of percutaneous coronary intervention, such as more accurate vessel measurement, improved stent expansion and apposition, and complication identification. This is why the use of IVUS is a class IIa recommendation in AHA and ESC guidelines. The aim of this retrospective study was to…
Two Safe Stents at Two Years in High Bleeding Risk
There is a consistent number of patients presenting high risk of bleeding. In this context, receiving dual antiplatelet therapy (DAPT) for 12 months would not be advisable. Even though the European and American guidelines recommend 1 to 6 months for chronic and acute syndromes in this group, these are often complex PCI cases, which makes…
Results of Zotarolimus-Eluting Stents vs Biolimus-Eluting Polymer-Free Stents After 2 Years. Are They Safe in Patients at High Risk for Bleeding?
The proportion of patients treated with coronary angioplasty who are at a high risk for bleeding is increasing. In this population, extended dual antithrombotic therapy increases the risk of bleeding. The 1-year randomized Onyx one study has demonstrated the non-inferiority of zotarolimus-eluting stents (ZES) vs. biolimus-coated polymer-free stent BioFreedom (DCS). Patients received dual-antiplatelet therapy (DAPT)…
Using Biolimus-Coated Balloons for Treating Small-Vessel Disease Yields Promising Results
Drug-eluting balloons have demonstrated safety and effectiveness in the treatment of small-vessel coronary artery disease and in-stent restenosis. However, randomized studies were performed using paclitaxel. Several studies have shown that using biolimus, a semisynthetic analog of sirolimus, optimizes drug delivery in both stents and balloons. The aim of this randomized, multicenter study was to evaluate…
Should We Start Thinking Again About Bioresorbable Stents?
Coronary revascularization with drug-eluting stents (DES) is very frequent, especially in acute coronary syndromes, but these metallic stents are permanent foreign bodies that activate the entire inflammatory system. Using bioresorbable stents (BRS) emerged as an alternative to this challenge. Although the initial results of the ABSORB study were not as expected (probably due to a…
Revascularization Using DES in Infrapopliteal Disease: Meta-Analysis and Change of Paradigm?
Peripheral vascular disease (PVD) has been under-studied and under-recognized in comparison with ischemic heart disease and stroke, despite its well-known impact on quality of life and its associated morbidity and mortality. According to a systematic review, it was estimated that in 2015 about 238 million people globally had PVD. This number is on the rise.…
Coronary Angioplasty Evolution According to Syntax II: 5-Year Followup
It has been long since the SYNTAX (NEJM 2009) came out comparing percutaneous coronary intervention (PCI) against coronary artery bypass grafting (CABG). That emblematic study associated PCI with first generation drug eluting stents (Taxus) with increased major cardiac and cerebrovascular events (all-cause mortality, AMI, stroke, or any revascularization – MACCE) vs. CABG, at 5 years,…
IVUS-Guided Coronary Angioplasty: Promising Results at 3-Year Follow-Up
Intravascular ultrasound (IVUS) to guide drug-eluting stent (DES) implantation has been evaluated in several studies. Two randomized studies, IVUS-XPL (Impact of Intravascular Ultrasound Guidance on the Outcomes of Xience Prime Stents in Long Lesions) and ULTIMATE (Intravascular Ultrasound Guided Drug Eluting Stents Implantation in All-Comers Coronary Lesions), have shown fewer repeat revascularizations compared with angiography-guided…
Drug Eluting Stents: Does Strut Size Matter?
The benefit of first-generation Drug-Eluting Stents (DES) over Bare Metal Stents (BMS) is largely known. Moreover, technological developments have led to reduced strut size, biodegradable polymers, and new scaffolds, which in turn have led to improved outcomes. These are known as ultrathin stents, and its struts measure between 70 and 100 microns, which contributes to…
Clnical Practice Dissociated from Study Outcomes: Bad News for Our Patients?
Differences in patient characteristics, changes in treatment algorithms, and advances in device technology, together or separately, might limit the applicability of older randomized trials to contemporary clinical practice. In this case, we look at patients and devices used in the contemporary clinical practice vs. those in the EXTEND DAPT. These differences were associated with attenuated…