slow inclusion

The purpose of this study is to demonstrate the efficacy of a PTFE covered stent-graft in the prevention of outflow re-stenosis in loop fistula in a prospective trial.

Inclusion Criteria:

• Patients of 18 years of age
• Patients have a life expectancy of at least 2 years
• Signed informed consent
• Recurrent stenosis at the venous anastomosis or in the draining vein of a loop arterio venous fistula, within 2 cm from the anastomosis.

Exclusion Criteria:

• Patient unsuitable for administration of contrast agent
• Pregnancy
• Dementia or altered mental status that would prohibit giving conscious informed consent
• Need for adjunctive major surgical or vascular procedures within one month