What triggered this study was a long unanswered question: should patients successfully resuscitated from an out-of-hospital cardiac arrest presenting a non-STEMI ECG be immediately taken to the cath lab? In response to this question the TOMAHAWK randomized 554 out-of-hospital resuscitated patients without electrocardiographic evidence of ST-segment elevation patients to immediate angiography (n=281) vs intensive care...
Functional assessment with fractional flow reserve (FFR) was not better than conventional angiography to guide complete revascularization in patients with multivessel lesions in a setting of ST-segment elevation myocardial infarction and successful primary angioplasty. These results were published in the New England Journal of Medicine (NEJM) and presented during the American College of Cardiology (ACC)...
Computed tomographic (CT) angiography showed a high degree of agreement with conventional angiography to detect significant coronary artery disease and rule out left main disease. This imaging study was done on a group of patients before their randomization in the ISCHEMIA trial. Data are soon to be published in JACC Cardiovascular Imaging and add plenty...
Shear stress has been incorporated to our jargon to identify this turbulent flow in certain places of the arterial tree (curves, bifurcations, etc.) that make these sectors more prone to plaque buildup. Seeing we often use the original term, no Spanish translation has been coined; we all refer to this phenomenon as shear stress and...
Courtesy of SBHCI. The aim of this work, which was presented during the TCT 2019 Scientific Session and simultaneously published in JACC Intv, was to prove the benefit of intravascular ultrasound (IVUS) in angioplasty. The IVUS-XPL trial randomized 1400 patients with long coronary lesions (≥28 mm) to IVUS-guided angioplasty (n = 700) vs. angiography-guided angioplasty (n = 700). All procedures were...
Fractional Flow reserve (FFR) guided myocardial revascularization surgery (CABG) has similar graft failure rate and clinical outcomes as angiography guided CABG. When planning PCI, the value of FFR for lesion assessment pose no questions, but we know little when it comes to CABG. Since the early start, back when Dr. Mason Sones performed catheterizations and...
Angiography-derived fractional flow reserve (FFR) demonstrated substantial usefulness, especially in patients with three-vessel lesions. The functional SYNTAX score derived from angiography has the potential to redefine prognosis and treatment strategies compared with the classic anatomical SYNTAX score. This study sought to investigate the applicability of this method in patients with multivessel lesions included in the...
Approximately 10% of patients who undergo transcatheter aortic valve replacement (TAVR) are readmitted for an acute coronary syndrome after a mean follow-up of 25 months. Male sex, prior coronary artery disease, and (surprisingly and hard to explain) nontransfemoral approach were independent predictors of acute coronary syndrome after TAVR, an event associated with high midterm mortality. While...
All over the world, functional lesion measurement remains underutilized due to the need for a hyperemic stimulus (which may be avoided with instantaneous wave-free ratio [iFR]) and, above all, the invasiveness of guidewire placement (crossing the intended lesion) for the measurement. These guidewires have improved a lot, but they still lack the navigating capacity of...
In the daily practice and in randomized studies such as Syntax or Freedom, most cardiovascular surgeons across the world use angiography guided CABG to teat 50% coronary stenosis. Many of these lesions might not be functionally significant. There is abundant evidence in favor of fractional flow reserve (FFR) guided PCI, but FFR guided CABG is...