Access flow measured during hemodialysis

ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs
J SandsC Miranda

Abstract

Hemodialysis accesses must supply adequate blood flow to perform hemodialysis and maintain access patency. Access flow (QA) is not measured routinely during hemodialysis. The purpose of this study was to evaluate whether access flow changes during hemodialysis and to determine which factors correlate with QA. The authors measured hemodialysis access flow by ultrasound dilution (QA-T) (Transonic HD01 hemodialysis monitor; Transonic Systems, Inc., Ithaca, NY) and duplex ultrasound, with time-domain correlation (QA-S) (Philips CVI Phillips Medical Systems, Santa Ana, CA) hourly, in 19 patients during hemodialysis. Mean arterial pressure (MAP) (Fresenius automated blood pressure cuff) and cardiac output (CO) (Transonic hemodialysis monitor; Transonic Systems, Inc.) also were measured sequentially. Using duplex ultrasound, access flow was unchanged. However, it fell 132 +/- 137 ml/m (p < 0.05) by ultrasound dilution in hr 4. Cardiac output fell 586 +/- 840 ml/ m (p < 0.05), and MAP fell 11.9 +/- 13.0 mmHg (p < 0.01). There were small positive correlations between CO and QA (correlation coefficient (r) = 0.32, QA-T; r = 0.27, QA-S; p < 0.05), and between CO and MAP (r = 0.35; p < 0.01). In conclusion, access flow, CO, and MAP decreas...Continue Reading

Citations

Nov 7, 2008·Nephrology·Kevan Polkinghorne, UNKNOWN Caring for Australians with Renal Impairment (CARI)
Sep 15, 2004·Nephrology·Kevan R PolkinghornePeter G Kerr
Jul 22, 2004·Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association·Marcello TonelliKailash Jindal
Sep 9, 2006·Vascular and Endovascular Surgery·Trung D BuiSamuel E Wilson
Feb 24, 2001·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·M C Yang, C C Lin
Jun 1, 2019·The Journal of Vascular Access·Hoon Suk ParkDong Chan Jin
Feb 7, 2001·Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association·A L ZanenP N Diderich
Aug 3, 2001·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·S L NybergM D Stegall
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Dec 25, 2002·American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation·Kevan R PolkinghornePeter G Kerr
Apr 28, 2001·American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation·B M MurrayB Mepani

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