RecruitingNot ApplicableNCT06249373

The Effect of LIPUS on the Maturation of Newly Constructed Autogenous AVF

A Multicenter Randomized Controlled Trial on the Effect of Low-intensity Pulsed Ultrasound on the Maturation of Newly Constructed Autogenous Arteriovenous Fistulas in Uremic Patients

Sponsor

Suzhou Municipal Hospital

Enrollment

300 participants

Start Date

Feb 26, 2024

Study Type

INTERVENTIONAL

Conditions

Uremia; Chronic

Summary

This study aims to evaluate the effect of 12 week low-intensity pulse ultrasound (LIPUS) intervention on the maturation of newly constructed autologous arteriovenous fistulas in uremic patients. This study is a prospective, blinded, randomized controlled trial. This trial is divided into two stages. The first stage is a concept validation trial, which is a single center, prospective, blinded, randomized controlled clinical study. Subjects who meet the screening criteria are randomly divided into an intervention group and a control group in a 1:1 ratio. All subjects underwent safety and efficacy evaluations at the 2nd, 4th, 8th, 12th, and 4th week after treatment. After completing a 4-week follow-up of the 20th study subject, an analysis was conducted with the preset goal of achieving a higher maturation rate of arteriovenous fistula in the intervention group compared to the control group at the follow-up point, and the safety of the study was evaluated. The second stage is a key trial, which is a multicenter, prospective, blinded, randomized controlled clinical study. The inclusion criteria, primary and secondary endpoints, and safety endpoints of the study subjects remain unchanged, and the safety and efficacy of the overall population are evaluated.

Eligibility

Min Age: 18 YearsMax Age: 75 Years

Plain Language Summary

Simplified for easier understanding

This study tests whether low-intensity pulsed ultrasound (LIPUS) — a painless sound wave therapy applied to the arm — can help a newly created arteriovenous fistula (AVF) mature more quickly so it can be used for kidney dialysis. An AVF is a surgically connected artery and vein in the wrist that needs time to grow strong enough for dialysis use. **You may be eligible if...** - You are between 18 and 75 years old - You are a dialysis or pre-dialysis patient who just had a new wrist AVF created - Your fistula has not yet been used for dialysis - Your blood vessels met the required size criteria before surgery **You may NOT be eligible if...** - Your fistula has already been used for dialysis - Your blood vessels were too small for standard AVF criteria - You have conditions that would interfere with healing or ultrasound therapy - You are pregnant Talk to your doctor to see if this trial is right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DEVICELow intensity pulse ultrasound （LIPUS） intervention for arteriovenous fistula anastomosis

The LIPUS intervention group for arteriovenous fistula should receive forearm wearable portable low-intensity pulse ultrasound （LIPUS） intervention at the anastomotic site no more than 3 days after suture removal two weeks after the fistula surgery. If the ultrasound examination indicates the presence of stenosis in the outflow tract, the intervention should also be performed at the same time. It belongs to non-invasive extracorporeal intervention, with three times a week （during dialysis） for 20 minutes each time. The sound intensity is 350mW/cm2, the pulse frequency is 1MHz, the pulse repetition frequency is 100Hz, the pulse frequency is 100 times, and the treatment period is 12 weeks.