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  • Title: Forced fluid removal in critically ill patients with acute kidney injury.
    Author: Ganter CC, Hochuli R, Bossard M, Etter R, Takala J, Uehlinger DE, Jakob SM.
    Journal: Acta Anaesthesiol Scand; 2012 Oct; 56(9):1183-90. PubMed ID: 22834537.
    Abstract:
    PURPOSE: The aim was to test the feasibility of protocol-driven fluid removal with continuous renal replacement therapy (CRRT) in patients in whom standard fluid balance prescription did not result in substantial negative fluid balances. MATERIALS AND METHODS: In 10 mechanically ventilated patients with sepsis or signs of inflammation and acute kidney injury [age 65 (48-78 years; median, range), simplified acute physiology score II 66 (39-116)], fluid removal was guided by mean arterial pressure (MAP), cardiac index (CI), mixed venous oxygen saturation (SvO(2)), lactate/base excess, peripheral circulation, and filling pressures, and adjusted hourly with the goal to maximize volume removal for up to 3 days. RESULTS: Fluid removal rates during the 3 days before and during the study period [66 (36-72) h] were 11 (-30 to +36) ml/kg/day and -59 (-85 to -31) ml/kg/day, respectively (P = 0.002). In 12% of a total of 594 fluid removal rate evaluations, fluid removal had to be decreased or stopped. Most frequent reasons leading to decreasing fluid removal were (n, % of all instances, median lowest value from all patients): SvO(2) (44, 28%, 59%), MAP (36, 23%, 57 mmHg), CI (26, 17%, 2.4 l/min/m(2)), low peripheral temperature (22, 14%, 'cold'). Overall, systemic hemodynamics remained stable throughout the study period. CONCLUSIONS: In these patients, protocolized fluid removal with CRRT was associated with large negative fluid balances.
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