Boereboom FTJ, Bosman PJ, Blankestijn PJ, Koomans HA
Do patients with angiographically proven access stenosis have low access blood flow?
Am Soc Nephrol
J Am Soc Nephrol (abstract) (Nov) 6:483 1995

This study combined access pressure measurements (at 200 ml blood flow = VP200, and the delta pressure from 0 to 400 blood flow (VP0-400), access flow measurements using the Transonics ultrasound dilution monitor, and angiographic findings in 36 patients. In 19 the angiogram revealed significant stenosis, and in this group the pressures were higher and the flow was lower than in patients with unobstructed angiograms. Not surprisingly, some with angiographically proved stenosis had high flows, ranging up to 1440 ml/min.

Comment: One of the few studies that combines all measurements. The only piece missing is outome data regarding the incidence of access clotting. Perhaps then we will know which measure best predicts graft failure. (Daugirdas)

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Am Soc Nephrol
Basic hemodialysis : Vascular Access: graft/fistula