Publications by authors named "Hugo Londero"

Objective: to describe a patient with myocardial ischemia with multiple causes.

Clinical Case: This clinical case describes a 58-year-old man with a history of hypertension, dyslipidemia, COPD and previous myocardial infarction (AMI). He went to the emergency room with chest pain and dyspnea.

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Background: Nonagenarians are mostly denied from different therapeutic strategies due to high preoperative risk. We present the results of nonagenarians with severe aortic stenosis (AS) undergoing transcatheter aortic valve replacement (TAVR).

Methods: Our retrospective analysis include baseline and procedural data along with clinical outcome.

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Background: The literature lacks studies regarding the correlation between risk scores and coronary anatomy in acute coronary syndrome (ACS) OBJECTIVE: Correlate risk scores with the severity of the coronary lesion in ACS with non-ST elevation.

Methods: A total of 582 patients were analyzed between July 2004 and October 2006. The correlation between TIMI risk scores and GRACE (hospital and six months) scores was performed for patients with coronary lesion ≥ 50%, using Spearman's non-parametric method.

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We report our experience using transradial access (TRA) for carotid artery stenting (CAS). Eighty-eight patients underwent CAS using a nonfemoral approach, 79 of them by TRA. Carotid artery stenting was performed using standard techniques with a long hydrophilic sheath.

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Aims: The occurrence of type I endoleaks represent an ominous sign after endovascular aneurysms repair (EVAR). We report our experience using balloon-expandable stents (BES) for the treatment of proximal Type I endoleaks at five high-volume hospitals in Argentina.

Methods And Results: Of 1,395 patients who underwent EVAR, we retrospectively collected data of 29 (2%) consecutive patients who underwent additional BES to repair proximal type I endoleaks.

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Unlabelled: We prospectively evaluated a novel nano-synthesized, membrane-covered self-expanding super-elastic all-metal endoprosthesis stent (SESAME Stent) in patients undergoing percutaneous intervention (PCI) of degenerated saphenous vein graft (SVG) lesions.

Methods: SESAME investigators prospectively enrolled 20 patients/21 lesions at 2 outside United States (OUS) centers, between February 2005 and August 2005. Patients underwent elective intervention of symptomatic SVG lesions with ≥ 50% stenosis.

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The purpose of the study was to examine the safety and efficacy of two different formulations of mycophenolic acid (MPA)-eluting Duraflex stents on coronary de novo lesions. Recent data indicate that local delivery of MPA in the porcine overstretch coronary model significantly reduces neointimal hyperplasia (NIH). Patients were divided into three consecutive groups.

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Atheroembolization resulting in transient or permanent neurologic impairment is the most common complication of catheter-based percutaneous carotid artery intervention. Protection of the distal cerebral vasculature during carotid stent implantation may enhance procedural safety. Carotid stent implantation with distal cerebral protection using the FilterWire EX was performed in 35 consecutive patients undergoing 36 procedures at six centers.

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Background: Prior studies of percutaneous transluminal renal artery angioplasty and stenting (PTRAS) for atherosclerotic renal artery stenosis (RAS) have shown that renal function is improved in about 25%, stabilizes in about 40%, but worsens in about 25% of patients. The factors predicting benefit remain controversial. We tested the hypothesis that the baseline glomerular filtration rate (GFR) predicts the changes in GFR and blood pressure (BP) after PTRAS.

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Background And Purpose: Fear of distal embolization and stroke has aroused concern regarding carotid stenting. Devices to protect the cerebral circulation may make carotid stenting safer.

Methods: A multidisciplinary study group tested a balloon occlusion-aspiration emboli entrapment device in conjunction with carotid stenting.

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