The presence of a metallic device interrupts normal laminar flow and creates an artery environment that favors thrombosis, leaving the vessel vulnerable to very late thrombosis. Dual antiplatelet therapy, a better implantation technique, and several improvements in new drug-eluting stents (DES) (thinner struts, and higher polymer stability and biocompatibility) have lowered significantly the incidence of...
Patients who receive chronic anticoagulation therapy and then undergo angioplasty are frequently discharged on a triple anti-thrombotic scheme that usually includes aspirin, clopidogrel, and warfarin. The optimal duration of this indication remains unclear, particularly for patients at high bleeding risk. According to expert consensus, patients receiving chronic anticoagulation may receive from 1 to 12 months of dual...
According to a recent study published in Circulation Cardiovascular Interventions, screening for coronary artery disease (CAD) with an invasive coronary angiography (as part of the protocol prior TAVR) and performing PCI and TAVR in the same session, has no impact on periprocedural safety or on long term outcomes. Study outcomes offer new hope, especially as regards using TAVR...
Courtesy of Dr. Carlos Fava. Severe atherosclerotic disease in iliac arteries is experienced by 15% of all men and 5% of all women. TAC II recommends angioplasty for type-A, -B, and -C lesions. As regards stent type, self-expanding stent (SE, more elasticity) vs. balloon-expandable stent (SB, more radial strength), Reekers indicates superior target lesion revascularization (TLR) with SE. However, there...
Peripheral artery disease (PAD) is no longer a systemic manifestation of atherosclerosis. In fact, 2 in 3 people with PAD have concomitant heart disease, and 1 in 3 people has concomitant PAD. To understand the real dimension of this problem, we should know that PAD patients have 60% more risk of acute myocardial infarction...
Durability ─or better yet, lack of deterioration─ is still a matter of debate when considering transcatheter aortic valve intervention (TAVI), especially now that it is being explored as a real alternative for younger patients. A recently published meta-analysis offers more evidence and suggests TAVI deterioration is mostly rare within the first 5 years. According to...
Courtesy of Dr. Agustín Vecchia. The advent of resorbable vascular scaffolds (BVS) generated high expectations among interventionists because of its potential advantages over bare metal stents. However, when comparing BVS against the Xience stent, we observed an increased rate of events associated to the first device, to their detriment. Among the reasons behind this poor...
Courtesy of the SBHCI. Guidelines recommend dual antiplatelet therapy for a year in patients admitted with coronary acute syndrome. However, patients at high risk for bleeding who receive coronary angioplasty have been historically excluded from studies. The new polymer-free stent BioFreedom allows for the reduction of dual antiplatelet therapy time, due to rapid drug elution...
Courtesy of Dr. Carlos Fava. Carotid artery stenting (CAS) has proven to be effective in high-risk patients. Nowadays, when performed by trained operators, its results are similar to those of surgery. This study seeks to clarify the incidence and prognosis of plaque protrusion through the stent (as observed in both control angiography and intravascular ultrasound [IVUS])...
The ICTUS (Invasive Versus Conservative Treatment in Unstable Coronary Syndromes) trial compared early invasive strategy with a selective invasive strategy in patients with non-ST-segment elevation acute coronary syndrome (NSTE-ACS), with elevated markers such as cardiac troponin T. The absence of long-term benefit of an early invasive strategy at 1 and 5 years had already been reported....