Publications by authors named "Luis Renier Goncalves Ramirez"
Introduction And Objectives: The reliability of quantitative flow ratio (QFR) has been questioned. Our aim was to evaluate the diagnostic accuracy of QFR in intermediate nonculprit lesions during the index ST-segment elevation myocardial infarction (STEMI) procedure compared with positive pressure wire-based fractional flow reserve (FFR ≤0.80) in a staged procedure.
View Article and Find Full Text PDFIntroduction And Objectives: The optimal treatment of nonculprit angiographic intermediate lesions (diameter stenosis 40%-69%) in patients with ST-segment elevation myocardial infarction (STEMI) is still unknown. Lesions with fractional flow reserve (FFR) ≤ 0.80 are indicative of ischemia and benefit from revascularization.
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- A study evaluated the effectiveness of closing a patent foramen ovale (PFO) after a cryptogenic stroke, comparing those who had it done within 9 months (early closure) to those who had it done after 9 months (delayed closure).
- The research found no significant differences in recurrence rates of cerebrovascular events or systemic embolisms between the early and delayed closure groups, indicating similar outcomes regardless of when the procedure was performed.
- The results suggest that PFO closure might be beneficial even in patients with a cryptogenic event that occurred more than 9 months ago, challenging the notion that the timing of the closure is critical.
Article Synopsis
- A study evaluated the long-term effects (5 years) of complete bioresorbable vascular scaffold (BVS) resorption on both structural healing and blood vessel function in patients who received the ABSORB-BVS treatment.* -
- The research included 31 patients, showing that while the scaffolds completely dissolved, there were concerning vasomotor responses, such as vasoconstriction after acetylcholine and lack of response to nitroglycerine in the treated blood vessels.* -
- New coronary lesions developed in some patients, indicating potential complications, and while the scaffolds were gone, the expected restoration of healthy blood vessel function was not fully achieved.*
We systematically categorized the longer-term (≥3 years) structural and functional characteristics of the ABSORB bioresorbable vascular scaffold (BVS) using optical coherence tomography imaging and coronary vasomotor reactivity testing and further compared the functional characteristics of BVS stented versus remote coronary segments. A total of 92 patients (mean age 56.4 ± 9.
View Article and Find Full Text PDFExercise right heart catheterization predicts outcome in asymptomatic degenerative aortic stenosis.
Rev Esp Cardiol (Engl Ed)
June 2020
Introduction And Objectives: Degenerative aortic stenosis (DAS) is the most frequent valvular heart disease. It remains unclear how to identify asymptomatic DAS patients with normal left ventricular ejection fraction who have a high probability of event occurrence and would thus benefit from early intervention. Here, we describe a protocol for exercise hemodynamics in true asymptomatic patients with moderate or severe DAS and assess the prognostic value of the data obtained in this population.
View Article and Find Full Text PDFObjectives: The aims of this registry were to determine the incidence, predictors, and prognostic value of periprocedural acute kidney injury (AKI) after left atrial appendage closure (LAAC).
Background: No data exist on the occurrence of AKI after LAAC.
Methods: A total of 355 patients undergoing LAAC were included in the study.