The purpose of this single center, randomized, control, open-labeled study is to evaluate the effect and safety of RCA versus no anticoagulation for CRRT in patients with liver failure and high risk bleeding.
Liver failure (LF) is a common co-morbidity in critical care patients who need continuous renal replacement therapy (CRRT). Patients with LF are usually associated with impaired coagulation, impaired metabolic ability of anticoagulants, and increased bleeding risk. KDIGO guideline recommended no-anticoagulation for CRRT in patients with liver failure and increased bleeding risk. However, the averaged CRRT circuit lifespan under no-coagulation was reported to be 7-8 hours in patients with liver failure. Commonly, a CRRT regimen needs more than 24 hours treatment, which means 3-4 filters replacement for one regimen in liver failure patients underwent no-anticoagulation CRRT. Several observational studies suggested that regional citrate anticoagulation (RCA) during CRRT was effective and safe in patients with liver failure. Therefore, the current opinions on the anticoagulation strategy for CRRT in patients with liver failure and high bleeding risk are controversial. Therefore, the purpose of this single center, randomized, control, open-labeled study is to evaluate the effect and safety of RCA versus no anticoagulation for CRRT in patients with liver failure and high risk bleeding.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
90
Sodium citrate (4%) infusion before the filter in order to maintain post-filter ionCa2+ level between 0.25 to 0.35 mmol/L. Calcium gluconate supplementary after the filter to maintain serum ionCa2+ level between 1.0 to 1.2 mmol/L.
Patients accepted CRRT without anticoagulant.
Xijing Hospital of Nephrology
Xi'an, Shaanxi, China
RECRUITINGFilter failure
Filter failure
Time frame: 72 hours
Serum Total Ca2+/ion Ca2+ level
Serum Total Ca2+/ ionized Ca2+ level
Time frame: 2, 6, 12, 20, 28, 36, 44, 52, 60, and 72 hours.
Hypocalcemia
Ionized Ca2+ \< 1.0
Time frame: 72 hours
Acidosis
Blood pH \< 7.35
Time frame: 72 hours
Alkalosis
Blood pH \> 7.45
Time frame: 72 hours.
Bleeding
Bleeding episode during the CRRT.
Time frame: 72 hours
Serum citrate concentration
Citrate concentration
Time frame: 2, 6, 12, 20, 28, 36, 44, 52, 60, and 72 hours.
Serum total bilirubin level
Total bilirubin
Time frame: Every 24 hours up to 72 hours.
Serum AST level
AST
Time frame: Every 24 hours up to 72 hours.
Serum ALT level
ALT
Time frame: Every 24 hours up to 72 hours.
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