Stenting a coronary lesion should not present a drop in pressure when measuring the treated segment with fractional flow reserve (FFR). FFR based trans-stent gradient should involve a segment of the sub-expanded vessel or instent obstruction as plaque prolapse or thrombus. The link between post-stenting physiology and long-term outcomes have been looked at in several…
The New Sirolimus Eluting Balloons Are Also Effective
The technological development of drug eluting stents has allowed us to treat increasingly complex patients, with around 10% stenosis and using more, and longer stents. This situation generates a great challenge: keep using stents or use paclitaxel coated balloons (PCB). At present, there are sirolimus drug coated balloons (SCB), but we do not have enough…
Should We Start Using Ultra-Thin Struts?
The benefits of DES are well known, as well as the benefits of more recent polymer-based DES versions (even those with no polymers). However, strut size is no small matter, and might even make the difference, seeing as thinner struts are associated to better deliverability, simpler crossing profile in bifurcations, better endothelization and healing. Besides,…
Is TCA Useful for Severe Impairment of Left Ventricular Ejection Fraction?
Heart disease is the most frequent cause of heart failure and, in some observational studies, transluminal coronary angioplasty (TCA) could help improve ventricular function. The only major randomized study to compare myocardial revascularization surgery (MRS) vs. medical treatment in patients with ventricular function impairment was the STICH study, which showed no difference at 5 years,…
ESC 2022 | Should We Follow-Up with Functional Testing in High-Risk Patients after CTA?
While the need for repeat cinecoronary angiography after transluminal coronary angioplasty (TCA) has decreased with the use of drug-eluting stents and improved medical treatment, patients still present ischemic recurrence or cardiovascular events at follow-up. Using a functional test at follow-up after TCA or myocardial revascularization (CMR) is a frequent practice in our context. This is…
Longitudinal Deformation of a Stent with the POT Technique
The fractal geometry of coronary bifurcations offers a mismatch between the proximal diameter of the main branch and the distal branches that make up the bifurcation. Angioplasty in this area can be performed through different techniques depending on plaque distribution, and the particular geometry of each bifurcation. Overall, and regardless of the strategy used, there…
Thin vs. Ultrathin Stents: 1-Year Clinical Results After IVUS/OCT-Guided Implantation
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…