Collateral circulation develops during the gradual progression of coronary occlusions in order to replace the original artery and supply blood to areas jeopardized by ischemia. However, the relevance of collaterals has remained controversial for many years. Several works have suggested a rapid regression of collaterals after rechanneling of chronic total coronary occlusions, which could render...
The association between glycemic control after coronary angioplasty and outcomes of the latter is controversial in many studies. We have come to think that the risk lies in suffering from diabetes, as if it was an unmodifiable factor. We have also come to believe that glycemic control can impact microvascular complications while it cannot do...
Courtesy of Dr. Gustavo Leiva. Coronary Artery Bypass Graft (CABG) has traditionally been the procedure of choice in patients with left main coronary artery disease. However, the use of percutaneous techniques in this kind of lesions has been on the rise, partly due to recent research showing similar outcomes with both procedures. Unprotected left main...
Courtesy of Dr. Guillermo Migliaro. Drug eluting stents (DES) represented the greatest technological advance in the treatment of instent restenosis from conventional metallic stents (BMS), especially cobalt chromium everolimus eluting stents (CoCr EES), which have shown an excellent profile, and are mostly safer, compared to first generation DES. Indeed, several randomized studies and meta-analyzis have...
Courtesy of Dr. Carlos Fava. Thoracic radiation causes cardiac lesions, and coronary arteries are among the most affected structures. Furthermore, it provokes obstructive lesions due to wall fibrosis. Generally, patients with this background are not eligible for surgery and receive angioplasty, a seemingly great alternative. However, there is no clear information on outcomes yet. This...
Courtesy of SBHCI Diabetic patients have worse evolution after coronary PCI. Drug eluting stents with bioresorbable polymers were designed to facilitate arterial healing, and reduce inflammation and late and very late thrombosis risk. This sub-study of diabetic EVOLVE II patients presents the 3 year outcomes of the SYNERGY stent. The EVOLVE II included...
Courtesy of Dr. Carlos Fava. The treatment of vein graft lesions has always been difficult in relation to angioplasty, due to their characteristics. While drug-eluting stents (DES) have proven to be superior to bare-metal stents (BMS) for coronary arteries, such superiority is unclear as regards vein grafts. Several studies with first-generation DES (DES1) have even reported...
Courtesy of Dr. Guillermo Migliaro. In regular clinical practice, overlapping stents are reported in up to 30% of patients undergoing coronary angioplasty, especially due to very long lesions requiring implantation of multiple stents or dissection after the implantation of a first stent. In bare metal stent era, overlapping was associated with unfavorable clinical outcomes...
Courtesy of Dr. Carlos Fava. For type A and B femoropopliteal artery lesions, percutaneous transluminal angioplasty (PTA) with balloon has proven beneficial; however, drug-eluting balloons (DEB) have shown superiority as regards restenosis. Some studies have reported favorable outcomes for DEB in type C and D lesions, but its real benefit is still unclear. This study prospectively...
Courtesy of Dr. Leiva. Bioresorbable scaffolds with drug-eluting stents (bioresorbable vascular scaffolds, BVS) have been added to the list of endovascular treatment options for coronary disease. The ABSORB III trial showed the non-inferiority of this stent type to everolimus-eluting metallic stents as regards target-lesion revascularization (TLR) at one year. However, reports have suggested a higher...