Abstract

Reductions in systemic vascular resistance and increased cardiac output are thought to help maintain tissue oxygen delivery during hypoxia. Here we discuss the rationale for creating arteriovenous (AV) shunts in humans and we describe novel techniques for percutaneous creation of AV shunts in patients. Although large AV shunts have been associated with cardiac failure, we believe that the creation of a moderate arteriovenous fistula (AVF) might benefit selected patients with respiratory disease. Here we study the acute effects of an AVF on mixed venous oxygen content and ar

Although the use of stents is common in other peripheral vessels, the application of stents remains highly controversial in the infrapopliteal bed (BTK). In general, infrapopliteal stent implantation is reserved for cases with a suboptimal outcome after PTA (i.e., > 50% residual stenosis, flow-limiting dissection). The fear that early thrombosis and late luminal loss due to intimal hyperplasia may lead to suboptimal long-term patency rates explains the reluctance on implanting stents in these small-diameter vessels. In the effort to optimize stent outcomes, coronary drug-eluting stent (DES) te

Abstract

We report a case of acute renal failure secondary to bilateral renal artery stenosis (RAS) presenting with anuria and well-controlled blood pressure. Renal function improved following percutaneous transluminal angioplasty and stenting (PTA/S). Anuria and well-controlled blood pressure can be an unusual presentation of bilateral RAS, and early detection followed by angioplasty and stenting in this group of patients may lead to an improvement in blood pressure control and preservation of renal functions.

Introduction

Atherosclerotic renal artery stenosis (RAS) is

By all accounts, leg ischemia caused by below-the-knee (BTK) arterial occlusive arterial lesions is an important and frequent form of atherosclerotic vascular disease. Until the recent past, BTK revascularization was long considered a “sacred domain” of surgical (bypass) treatment — with little if any room left for catheter-based therapy. We know better today.1 The BTK territory, in fact, can be appropriately thought of today as one of the most promising frontiers in the entire endovascular field when the potential for growth and patient benefit are taken into account.

Balloon angiop