Volume 5 - Issue 5 - Sept/Oct 2008
Original Contribution »
Percutaneous Creation of Arteriovenous Shunts
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
Original Contribution »
Percutaneous Mechanical Thrombectomy of Acute Lower Extremity Ischemia
Abstract
Background. Data are limited regarding the efficacy of percutaneous mechanical thrombectomy (PMT) for the treatment of acute lower extremity (LE) ischemia. The current study was undertaken to evaluate the results following PMT for occluded LE bypass grafts, stents, and thromboembolic events involving native arteries. Methods. During a 3-year period, 43 patients underwent PMT. The patient’s outcome, including the technical success rate, additional procedures, major complications, limb salvage rate, and length of hospital stay were documented for each patient. Ultrasound fol
Clinical Review »
Why Drug-Eluting Stents May Not Work for Most Patients with Leg Ischemia Caused by Below-Knee Arterial Occlusive Disease
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
Case Report »
Focal Neurologic Symptoms and Diminished Flow to an Upper Extremity Arteriovenous Fistula
Following Placement of a Thoracic Aortic Endograft: Successful Treatment with Carotid Subclavian Bypass
Introduction
Most traumatic thoracic aortic disruptions occur in the proximal descending thoracic aorta. A significant number of patients with thoracic aortic pathology are found to have disease adjacent to the origin of the great vessels. Endovascular treatment of these injuries often requires either partial or complete intentional coverage of the origin of the left subclavian artery (LSA) in order to obtain an adequate length of the proximal landing zone. The majority
Case Report and Brief Review »
Successful Angioplasty and Stenting of an Unusual Case of Bilateral Renal Artery Stenosis
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
Case Report »
Vascular Complications of Osteochondromas: A Report of Two Cases
Introduction
Osteochondromas, or exostoses, are the most common form of benign bone tumor, representing about 20–50% of all benign and 10–15% of all bone tumors.1 Patients rarely develop vascular complications. In the English literature, only 106 cases are reported. The development of a pseudoaneurysm, which was first described by Paul in 1953,2 is reported in 58 cases.1,3–7
We report two cases of vascular complications of osteochondromas: a pseudoaneurysm and an arterial occlusion.
Case Report 1
A 22-year-old male with a smoking habit and an HIV infection prese
Editor's Corner »
Going below the knee: Not without challenges
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
