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The Mount Sinai Diabetic Foot Ulcer Prospective Trial

2018-01-26 13:20:11 | BioPortfolio

Summary

The purpose of this study is to evaluate whether placing stent(s) for a blockage in a leg vein will help improve the healing of diabetic foot ulcers (DFU). The investigators know from having taken care of many patients with diabetic foot ulcers that it is a major cause of disability and amputation. These diabetic foot ulcers frequently heal slowly or not at all. They sometimes become infected and require antibiotic therapy, debridement and amputation. The investigators normally take care of a diabetic foot ulcer with a combination of local wound care, surgical debridement if necessary, antibiotics if there is an infection, and reduction of pressure on the area of the foot with the ulcer. The investigators observed that some patients with a diabetic foot ulcer also have a blockage in a major leg vein referred to as the iliac vein. This blockage in the iliac vein prevents the proper flow of blood from the leg. This blockage results in pressure within the leg veins leading to swelling in the legs which may also prevent healing of the diabetic foot ulcer. This study will investigate whether placing stent(s) to treat the blockage(s) will improve healing of the diabetic foot ulcer and reduce some of the complications associated with a diabetic foot ulcer. The results of this study could result in a new treatment that will allow future patients with diabetic foot ulcers to heal better. Right now, placing stents for these blockages in the iliac vein is not the standard of care treatment for a diabetic foot ulcer. In order for us to determine whether stent placement is helpful, the researchers will have to randomize each patient. In other words, to reduce bias, patients will be assigned either to a group receiving a stent or to a group not receiving a stent. Every patient in both groups will receive the standard of care for a diabetic foot ulcer and undergo an x-ray with contrast and intravenous ultrasound examination of the legs. The standard of care for a diabetic foot ulcer may include local wound care, antibiotic therapy, debridement and/or amputation, and pressure offloading in the foot.

Description

This will be a single center, patient-blinded, randomized controlled trial. In the event that a patient does not meet inclusion criteria after signing the consent for and undergoing venogram/IVUS (screen fail), additional patients will be enrolled until 60 patients have been successfully randomized. Up to 80 patients will be consented in order to account for potential screen fails. Randomized patients will be followed monthly until their ulcer heals, every 3 months after healing for one year postoperatively.

Every patient subject will undergo venogram & IVUS. The investigator experience with over 600 patients who underwent venous stenting at Mount Sinai - all of whom had preoperative MR venogram or CT venogram - revealed that pre-operative imaging missed the diagnosis of PVOO in approximately 10% of patients (this is unpublished data). Due to the small sample size of this pilot study, the very low risks associated with venogram and IVUS, and the 100% accuracy of venogram and IVUS in diagnosing PVOO, every study subject will undergo these two imaging studies. Once the diagnosis of PVOO is confirmed, the study subject will be immediately randomized in the OR. Study subjects randomized to convention therapy plus venous stents will undergo venous stent placement at the same sitting. For study subjects randomized to conventional therapy alone, the procedure will be terminated after venogram and IVUS.

Study Design

Conditions

Diabetes

Intervention

Conventional Therapy, Venous Stent(s)

Location

Icahn School of Medicine at Mount Sinai
New York
New York
United States
10029

Status

Not yet recruiting

Source

Icahn School of Medicine at Mount Sinai

Results (where available)

View Results

Links

Published on BioPortfolio: 2018-01-26T13:20:11-0500

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