Much has been done since studies on conventional balloon angioplasty for BMS instent restenosis showed over 40% new revascularization. Drug eluting stents, aimed at improving this problem, have never achieved 0% restenosis, which is why technologies such as paclitaxel coated balloons have been developed, with reasonable efficacy (8% to 10% reinterventions rate for BMS restenosis and 17% to 23%...
By restoring vascular physiology and eliminating the inflammatory focus and the chance of fracture and neo atherosclerosis inherent to DES, bioresorbable scaffolds offer the potential to improve long term outcomes. A number of bioresorbable materials have been tested, mainly polylactic acid, with several limitations that have taken the Absorb bioresorbable scaffold out of the market....
Courtesy of Dr. Carlos Fava. The incidence of peripheral vascular disease is clearly increasing, progressing towards critical ischemic claudication and amputation. Angioplasty is currently the treatment of choice for these pathologies. Several times, an implanted stent ends up cracking due to extensive calcification, increasing the rate of restenosis and worsening critical ischemia. Technological development on drug-eluting...
Diabetes mellitus patients generally present more diffuse coronary disease, faster lesion progression and higher risk of restenosis after PCI. The way these anatomical differences translate into in a different clinical practice, compared to non-diabetic patients, remains unclear. Prior studies comparing the frequency of angina symptoms in diabetic vs. non-diabetic patients have arrived to contradicting outcomes,...
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...
The higher rate of restenosis in the diabetic population is historic and has been reproduced in all studies and with all kinds of stents, but it was only after the FREEDOM trial when we found out about the higher infarction rate with PCI compared to surgery. This is why 50% of patients undergoing CABG are diabetic. Apart from the above...
There are plenty of clinical studies assessing the use of angioplasty for en la peripheral artery disease with restenosis rates as high as 40% and 60% at 6 and 12 months. Drug coated balloons have significantly raised primary patency, but they have mostly been tested in short lesions with mild calcification and no total occlusions. This...
Gentileza del Dr. Carlos Fava. The common femoral artery has always been treated with surgery. Thanks to the development of new generation stents and the advancement of percutaneous intervention, common femoral lesions are currently being treated with PCI. However, data on the safety of PCI vs. surgery, remain unavailable. The TECCO is multicenter study, randomized...
Peripheral vascular diseases affect over 20% of the population and can affect up to 30% of people with cardiovascular risk factors. The most important treatment points include modification of risk factors, exercise, optimal medical treatment, and timely revascularization. Given its lower risk of peri-procedural complications (when compared to surgery), endovascular therapy is generally the first...
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...