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Automated 3D Ultrasound-based Surveillance of Arteriovenous Fistula Maturation for Post-operative Hemodialysis Patients

2019-07-18 10:31:17 | BioPortfolio

Summary

This study evaluates the role of an implanted ultrasonic fiducial marker and automated Duplex for evaluating the maturation of peripheral arteriovenous fistulae created for the purpose of establishing long term hemodialysis access in patients with end stage renal disease.

Study Design

Conditions

Arteriovenous Fistula

Intervention

Implantation of ultrasonic fiduciary

Status

Not yet recruiting

Source

Sonavex, Inc.

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-07-18T10:31:17-0400

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Medical and Biotech [MESH] Definitions

An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.

A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. Not to be confused with surgical anastomosis, nor with arteriovenous fistula.

Abnormal formation of blood vessels that shunt arterial blood directly into veins without passing through the CAPILLARIES. They usually are crooked, dilated, and with thick vessel walls. A common type is the congenital arteriovenous fistula. The lack of blood flow and oxygen in the capillaries can lead to tissue damage in the affected areas.

An abnormal anatomical passage between the INTESTINE, and another segment of the intestine or other organs. External intestinal fistula is connected to the SKIN (enterocutaneous fistula). Internal intestinal fistula can be connected to a number of organs, such as STOMACH (gastrocolic fistula), the BILIARY TRACT (cholecystoduodenal fistula), or the URINARY BLADDER of the URINARY TRACT (colovesical fistula). Risk factors include inflammatory processes, cancer, radiation treatment, and surgical misadventures (MEDICAL ERRORS).

An abnormal anatomical passage that connects the VAGINA to other organs, such as the bladder (VESICOVAGINAL FISTULA) or the rectum (RECTOVAGINAL FISTULA).

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