Computed Tomography Scan Versus Color Duplex Ultrasound for Surveillance of Endovascular Repair of Abdominal Aortic Aneurysm. A Prospective Multicenter Study

Centre Hospitalier Universitaire de Nice659 enrolled

Overview

Cumulative radiation dose, cost, contrast induced nephrotoxicity and increased demand for computed tomography aortography (CTA) suggest that duplex ultrasonoraphy (DU) may be an alternative to CTA-based surveillance. The investigators compared CTA with DU during endovascular aneurysm repair (EVAR) follow-up. Patients undergoing EVAR have radiological follow-up data entered in a prospectively multicenter database. The gold standard test for endoleak detection was CTA. DU interpretation was performed independently of CTA and vice versa.

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

659

Conditions

Endovascular Repair of Abdominal Aortic Aneurysm

Interventions

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patients who were followed after EVAR, whatever the trademark and the model of the stentgraft (bi-iliac or mono-iliac) * Age \> 18 years old * Patient with social insurance * Signature of informed consent Exclusion Criteria: * patients who underwent EVAR with a fenestrated or branched stentgraft * Obese patients (BMI \> 30) * Patients with severe renal insufficiency (Creatinine Clearance \< 30 ml/mn) * Patients who can't practice both an CT scan with iode injection and duplex ultrasound test over a period of one month

Locations (21)

CHU d'Amiens - Service de Chirurgie Vasculaire

Amiens, France

CHU d'Angers - Service de Chirurgie Vasculaire

Angers, France

CHU de Besançon - Service de Chirurgie Vasculaire

Besançon, France

CHU de Bordeaux - Service de Chirurgie Vasculaire

Bordeaux, France

CHU de Caen - Service de Chirurgie Vasculaire

Caen, France

CHU Clermont-ferrand - Service de Chirurgie Vasculaire

Clermont-Ferrand, France

AP-HP Créteil - Service de chirurgie vasculaire

Créteil, France

CHU de Dijon - Service de Chirurgie Vasculaire

Dijon, France

CHU de Grenoble - Service de Chirurgie Vasculaire

Grenoble, France

CHRU Lille Service de Chirurgie Vasculaire

Lille, France

...and 11 more locations

Outcomes

Primary Outcomes

Clinically significant abnormalities that require secondary intervention (coil embolization, endovascular intervention, surgical conversion)

Clinically significant abnormalities that require secondary intervention (coil embolization, endovascular intervention, surgical conversion) : * increasing aneurysm sac size (≥5mm), * type I or type III endoleak, * type II endoleak with an increasing aneurysm sac size (≥2mm) * significant stenosis of a limb of the stentgraft (≥70%).

Time frame: Between 1 week and 1 month

Secondary Outcomes

All abnormalities, clinically significant or no

All abnormalities, clinically significant or no: All types of endoleak An increasing aneurysm sac size (≥1mm) Stenosis or thrombosis of limb of the stentgraft

Time frame: Between 1 week and 1 month