Table 1. Inclusion and Exclusion Criteria of the Study Population.

Inclusion criteria
	1. Native AVF at least 60 days before tde procedure tdat had been used for dialysis for at least 8 of 12 sessions during a 4-week period, ensuring fistula maturity
	2. ≥ 50% stenosis documented on fistulogram
Exclusion criteria
	1. Thrombosed AVF
	2. Age < 18 years

AVF = arteriovenous fistula