Antecubital perforating vein stent-grafting for radiocephalic arteriovenous fistula recovery: A case report.

Stent-grafts have been increasingly used in hemodialysis arteriovenous accesses, particularly in recurrent stenosis or in cases of vein rupture after percutaneous transluminal angioplasty (PTA). Although they limit neointimal hyperplasia, stenosis development at stent edges remains a concern. Despite their advantages, they are seldom used on the forearm veins due to fracture risk associated with elbow motion and the potential to limit cannulation sites.

Outflow Rescue of Elbow-Blockade Forearm Arteriovenous Fistulas: Outcomes of Open Surgical Techniques.

Background: Venous scarring at the elbow is a common problem that can cause early and late forearm arteriovenous fistula (AVF) dysfunction in hemodialysis patients. However, any effort to prolong the long-term patency of distal vascular accesses could benefit the patient's survival, maximizing the use of restricted venous patrimony. This study aims to report a single-center experience in the recovery of distal autologous AVF with venous outflow obstruction at the elbow using different surgical techniques.

Brachial Vein Transposition Versus Arteriovenous Graft - Two-year Results.

Background: Proper vascular access is essential for effective hemodialysis. There are three main access modalities: arte- riovenous fistula (AVF), arteriovenous graft (AVG), and central venous catheter. AVF has better patency and fewer complications, with lower morbidity and mortality rates.

Radio-cephalic fistula recovered with drainage to median basilic vein by straightening of the forearm cephalic vein: A case report.

The distal arteriovenous fistula (AVF) has less complications and better patency than the proximal fistula, when it works properly. The complications of outflow of the fistula are complex, and it is necessary to analyze all solutions to solve the problem. We introduce a novel approach to solve outflow problems of a radio-cephalic AVF by straightening of the forearm cephalic vein with drainage into the median basilic vein.

Ruptured arteriovenous fistula pseudoaneurysm treatment by balloon-assisted direct percutaneous thrombin injection.

We present the case of a male patient on hemodialysis with a ruptured pseudoaneurysm in a brachiocephalic arteriovenous fistula (AVF) and with edema and pain in the right arm attended to in the emergency department. An ultrasonographic scan identified a ruptured pseudoaneurysm with hemorrhagic infiltration of the arm muscular tissues. We performed a percutaneous ultrasound-guided thrombin injection with an angioplasty balloon inflated in the lumen of the AVF achieving the pseudoaneurysm thrombosis.

Surgical Treatment of Cephalic Arch Stenosis through Rotation of the External Jugular Vein.

The percutaneous transluminal balloon angioplasty or cephalic vein transposition is the treatment for cephalic arch stenosis. In some cases, rotation of the external jugular vein may be a good option for the cephalic arch problems. We describe a new technique to treat cephalic arch stenosis.

Stenosis and thrombosis-unveiled complications of buttonhole cannulation.

The vascular access is the mainstay of hemodialysis. Arteriovenous fistula has been prioritized as the first choice of long-term vascular access for its inferior rate of complications and improved patient survival. Rope ladder and buttonhole venipuncture are the most common techniques for arteriovenous fistulae cannulation.

Radiocephalic Fistula Recovery Using the Brachial Vein and Forearm Basilic Vein: A Case Series and Literature Review.

Vascular access dysfunction is a serious problem in dialysis units. Some patients have complex dysfunctions that are difficult to resolve. In this article, we report the case a of two patients with radiocephalic arteriovenous fistulae (RC-AVF) who had stenosis/occlusion of the forearm median vein and where we used the basilic vein of the forearm as a solution.

Radio-cephalic arteriovenous fistula recovered with drainage through the brachial vein.

Dysfunction of arteriovenous access for hemodialysis is a challenge for the vascular surgeon. Some patients have complex vascular access with problems that are difficult to solve. Careful analysis of the vascular network with ultrasound and dissection of the veins during surgery can help to identify the best option for each access.

Arteriovenous access banding revisited.

Purpose: The aim of this study is to validate the current applicability of arteriovenous access banding in high flow access (HFA) and/or haemodialysis access-induced distal ischaemia (HAIDI).

Methods: This retrospective study was conducted at the GEV (Grupo de Estudos Vasculares) vascular access centre. The clinical records of consecutive patients undergoing banding for HAIDI and HFA symptoms, between June 2011 and January 2015, were reviewed until April 2015.

Brachio-Brachial Arteriovenous Fistula Superficialization with Short Skip Incisions.

The exhaustion of superficial venous patrimony or reduced diameter of superficial veins usually prevents patients from having an arteriovenous fistula created. In such cases, using deep vessels can be a more viable option as opposed to an arteriovenous graft. We describe a new approach for the brachio-brachial arteriovenous fistula creation technique.

Radio-cephalic fistula recovered with drainage to forearm basilic vein.

Dysfunction problems with vascular access are a concern to patients and dialysis units. The vascular surgeon should analyse such dysfunction and perform a careful assessment of the vascular network in order to find new fistula layouts. We introduce and discuss the case of creation of a radio-cephalic fistula with outflow into the forearm basilic vein through rotation of the forearm basilic vein toward the cephalic vein in the forearm of an 88-year-old hemodialysis male patient.

Brachial-cephalic fistula recovered with drainage for the basilic vein: Case report.

Vascular access is essential for the implementation of hemodialysis (HD). The arteriovenous fistula (AVF) can be constructed in various locations using various veins. However, the quality of the veins will influence the construction site, as well as the functioning of the AVF.

An overview on the development of a bio-artificial pancreas as a treatment of insulin-dependent diabetes mellitus.

This paper presents the concept and most of the research undertaken all over the world for the development of a bio-artificial pancreas (BAP) device over the last 30 years. The devices studied, meant to mimic the insulin secretion of the natural organ, were diverse and have been reviewed. Allogeneic or xenogeneic cells or cell clusters have been separated from the host's immune system by synthetic biocompatible semipermeable membranes to prevent the need, of the host, for immune-suppressing regimens.