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BACKGROUND Prior unblinded studies have suggested that catheter-based renal-artery denervation reduces blood pressure in patients with resistant hypertension. METHODS We designed a prospective, single-blind, randomized, sham-controlled trial. Patients with severe resistant hypertension were randomly assigned in a 2:1 ratio to undergo renal denervation or(More)
BACKGROUND Renal denervation (RDN) with radiofrequency ablation substantially reduces blood pressure in patients with treatment-resistant hypertension. We assessed the long-term antihypertensive effects and safety. METHODS Symplicity HTN-1 is an open-label study that enrolled 153 patients, of whom 111 consented to follow-up for 36 months. Eligible(More)
BACKGROUND Animal models of therapeutic angiogenesis have stimulated development of clinical application in patients with limited options for coronary revascularization. The impact of recombinant human vascular endothelial growth factor (rhVEGF) on myocardial perfusion in humans has not been reported. METHODS AND RESULTS Fourteen patients underwent(More)
BACKGROUND Prior studies of catheter-based renal artery denervation have not systematically performed ambulatory blood pressure monitoring (ABPM) to assess the efficacy of the procedure. OBJECTIVES SYMPLICITY HTN-3 (Renal Denervation in Patients With Uncontrolled Hypertension) was a prospective, blinded, randomized, sham-controlled trial. The current(More)
OBJECTIVES We examined the procedural and 30-day clinical outcomes among patients receiving aspirin and either ticlopidine or clopidogrel during coronary stenting. BACKGROUND Ticlopidine-plus-aspirin has become standard antiplatelet therapy for the prevention of thrombotic complications after coronary stenting. Clopidogrel has a similar mechanism of(More)
BACKGROUND The treatment of peripheral artery disease with percutaneous transluminal angioplasty is limited by the occurrence of vessel recoil and restenosis. Drug-coated angioplasty balloons deliver antiproliferative agents directly to the artery, potentially improving vessel patency by reducing restenosis. METHODS In this single-blind, randomized trial(More)
BACKGROUND Recombinant fibroblast growth factor-2 (rFGF-2) improves perfusion in models of myocardial and hindlimb ischaemia. We investigated whether one or two doses of intra-arterial rFGF-2 improves exercise capacity in patients with moderate-to-severe intermittent claudication. METHODS 190 patients with intermittent claudication caused by(More)
The American College of Cardiology, in concert with the Society for Coronary Angiography and Interventions and the Society for Vascular Surgery, planned and implemented an initiative to teach stenting of renal and iliac arteries to their peers in practice. Supported by the Foundation to advance medical Education (FAME), the initiative involved 25 preceptees(More)
AIMS The SYMPLICITY HTN-3 randomized, blinded, sham-controlled trial confirmed the safety of renal denervation (RDN), but did not meet its primary efficacy endpoint. Prior RDN studies have demonstrated significant and durable reductions in blood pressure. This analysis investigated factors that may help explain these disparate results. METHODS AND RESULTS(More)
OBJECTIVE Angioplasty and stenting are options for revascularization of symptomatic femoral popliteal disease. Although angioplasty alone is effective in short lesions, longer lesions are often treated with stents. Multiple overlapping stents are expensive and may be associated with stent fracture. This trial evaluated the safety and efficacy of a single(More)