Hemodynamic effects of arteriovenous fistula and bovine graft fistula used for hemodialysis.

: This study shows that arteriovenous fistulas created for vascular access to hemodialysis result in an increase in cardiac output and pulse rate, and a decrease in the total peripheral resistance. These changes are severe with bovine graft fistula; physicians should be aware of this potentially dangerous hemodynamic change in these patients.