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...
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...
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...
TRYTON is a cobalt chromium device specifically dedicated for bifurcation lesions to be implanted in the side branch. Circumflex artery is the major lateral branch fund the coronary tree. Between 2008 and 2011 this work included 52 patients with left main coronary unprotected lesions who underwent angioplasty with drug-eluting stent in the coronary trunk left...
The use of FFR to guide treatment showed improved outcomes in previous studies. However, there are few data on the routine use of the method and its impact on modifying therapeutic decisions for injury and by patient. The aim of this study was to evaluate the routine use of FFR in the real world. All...
Initial studies showed a blood pressure significant reduction to 3 years in patients with resistant hypertension, while the SIMPLICITY HTN -3 with a larger number of patients compared to a group with “Sham” procedure (renal angiography with conscious sedation) could not confirm the results. The aim of this study was to evaluate the possible confounding...
P2Y12 receptor inhibitors are effective in patients experiencing NSTE-ACS, however, the administration timing is not clear. This study evaluated the administration of prasugrel at the time of diagnosis of ACS or after performing coronary angiography when angioplasty was already decided. 4033 patients were included experiencing an NSTE-ACS troponin positive who had planned angiography between 2...
This work compared the safety and efficacy of the culotte technique versus the use of self-expanding Biolimus A9 (AXXESS) eluting stent evaluating the healing of the vessel by OCT besides quantitative angiography and clinical events. In one, group (n = 20) bifurcated stent system AXXESS plus everolimus-eluting stents in the main distal branch and side...
Previous studies have shown that renal denervation in a 3-year period, reduced the blood pressure in resistant hypertensive patients in a sustained and meaningful way. The aim of this study was to evaluate this therapy in a larger number of patients with the control group receiving “sham” (renal angiography conscious sedation) procedure. Patients and the...
This randomized trial with an initial plan to include 1832 patients, compared stent implantation guided by fractional flow reserve (FFR) versus optimal medical treatment. In this study, we invasively evaluated the severity of lesion by FFR. Of this population, only patients who had lesions with significant translesional gradient (FFR <0.9) were included in the study...