Aneurysmorrhaphy of Vascular Access for Haemodialysis

Not Applicable

Completed

• Conditions: Patients With an Aneurysm of Native Vascular Access Indicated for Surgical Treatment
• Interventions: Procedure: Aneurysmorrhaphy with or without external porous prosthesis (Provena©, BBraun)

• Registration Number: NCT03262467
• Lead Sponsor: Faculty Hospital Kralovske Vinohrady

Brief Summary

In patients with chronic renal failure, a well-functioning vascular access is essential for hemodialysis treatment. Native arteriovenous fistula (AVF) is the first-choice of vascular access, due to a lower incidence of complications and better long-term patency as compared to prosthetic arteriovenous fistula. With the incidence ranging between 6-60%, AVF aneurysm (AAVF) is a common complication of native AVF. According to Kidney Disease Outcomes Quality Initiative (K/DOQI) guidelines, asymptomatic aneurysms are indicated for conservative treatment, but precise recommendations when and how to intervene in available guidelines are missing.

Several surgical (remodeling, resection and substitution, ligation) and endovascular techniques have been described in the AAVF treatment, but there is currently no prospective randomized study comparing these techniques.

In 2008, our team published the first experience with a new surgical method of AAVF treatment - aneurysmorrhaphy with external porous prosthesis (Provena©, BBraun). This therapy was validated in several studies and has shown a good long-term patency and a minimal incidence of complications.

AAVF aneurysmorrhaphy can be performed with or without an external porous prosthesis (Provena©, BBraun). The use of external prostheses reduces venous wall shear stress, turbulent flow, endothelial damage, and thrombus formation, which should improve vascular patency and reduce the risk of AVF re-aneurysm. So far, there is no prospective randomized study comparing the effect of external porous prosthesis on AVF patency and the incidence of postoperative complications.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2017-08-23
• Study First Submitted QC: 2017-08-24
• Study First Posted: 2017-08-25
• Study Start: 2018-01-31
• Primary Completion: 2023-07-01
• Study Completion: 2023-09-01
• Status Verified: 2024-02
• Last Update Submitted: 2024-02-24
• Last Update Posted: 2024-02-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 115

Inclusion Criteria

1. Signature of informed consent.
2. A male or female subject aged 18 or older.
3. A subject with a naive vascular access aneurysm indicated for surgical treatment.

Exclusion Criteria

1. Patients with pseudoaneurysm of prosthetic vascular access
2. Patients with a vascular access infection

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Aneurysmorrhaphy without external porous prosthesis	Aneurysmorrhaphy with or without external porous prosthesis (Provena©, BBraun)	-
Aneurysmorrhaphy with external porous prosthesis (Provena©)	Aneurysmorrhaphy with or without external porous prosthesis (Provena©, BBraun)	-

Primary Outcome Measures

Name	Time	Method
Patency and aneurysms recurrence at 12 months after operation	12 months

Secondary Outcome Measures

Name	Time	Method
Complications at 12 months	12 months

Trial Locations

Locations (1)

Department of Surgery, Faculty Hospital Kralovske Vinohrady, 3rd Medical Faculty, Charles University; 🇨🇿 Prague, Czechia