While the use of intravascular ultrasound (IVUS) during coronary intervention proved useful in multiple studies, there is limited evidence in the literature regarding its use in specifically in chronic total occlusions. The IVUS may help guide in recognizing the true lumen and better distal positioning, better coverage of stent, an optimal apposition and expansion, diagnose…
DKCRUSH-VI: FFR versus conventional angiography in true bifurcations and provisional stent
The aim of this study was to compare angioplasty guided by fractional flow reserve (FFR) versus conventional angiography in bifurcations treated with provisional stent technique for lateral branch. The study included patients with bifurcations 1,1,1 or 0,1,1 of Medina classification and lateral branches, superior to 2.5 mm. 2nd generation pharmacological stents were used. After stent…
ABSORB 2: Results at one year of bioabsorbable platform versus Xience
This randomized, controlled, multicenter and blind study compared the second generation of bio-absorbable stent platform with the everolimus-eluting Xience. 501 patients were randomized 2: 1 (Absorb / Xience) with de novo lesions in native coronary arteries with a reference diameter between 2.25 and 3.8 mm estimated by quantitative angiography. All the patients underwent IVUS and…
RIBS IV: Drug-eluting balloon versus everolimus-eluting stent on in-stent restenosis
This prospective, multicenter, randomized trial compared the paclitaxel-eluting balloon versus everolimus-eluting stent to treat patients with in-stent restenosis. 309 patients were included in total (154 received the drug-eluting balloon, and 155 received the everolimus-eluting stent). There were no differences in the characteristics of both groups. At one year the rate of cardiac death, myocardial infarction…
OCT-STEMI: Primary angioplasty guided by OCT
This study included 201 patients suffering ST-segment elevation acute coronary syndrome and randomized to the use of optical coherence tomography (OCT) versus conventional angiography for the procedure. OCT-guided group used more stents per patient (1.4 versus 1.2, p = 0.03) and greater release pressure. During control OCT suboptimal results were found in a third of…