Oxygen extraction ratio to identify patients at increased risk of intradialytic hypotension.

ABSTRACT: Intradialytic hypotension (IDH) is a hemodynamic phenomenon recently associated with decreased blood oxygen saturation (SO₂). The ratio between peripheral oxygen saturation (SpO₂) and central venous SO₂ (ScvO₂) or Oxygen Extraction Ratio (OER), which represents a roughly estimate of the amount of oxygen claimed by peripheral tissues, might be used to estimate haemodialysis (HD) related hypoxic stress. Aim of this pilot study was to evaluate the relationship between OER increments during dialysis sessions (ΔOER) and episodes of IDH. We enrolled chronic HD patients with permanent central venous catheter (CVC) and no fistula, in whom ScvO₂ measurement is at hand. OER ([(SpO₂ - ScvO₂)/SpO₂] × 100) was measu

SUBMITTER: Rotondi S 

PROVIDER: S-EPMC7910620 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature