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2015 ; 19
(ä): 349
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Safety and efficacy of regional citrate anticoagulation in continuous venovenous
hemodialysis in the presence of liver failure: the Liver Citrate Anticoagulation
Threshold (L-CAT) observational study
#MMPMID26415638
Slowinski T
; Morgera S
; Joannidis M
; Henneberg T
; Stocker R
; Helset E
; Andersson K
; Wehner M
; Kozik-Jaromin J
; Brett S
; Hasslacher J
; Stover JF
; Peters H
; Neumayer HH
; Kindgen-Milles D
Crit Care
2015[Sep]; 19
(ä): 349
PMID26415638
show ga
INTRODUCTION: Regional citrate anticoagulation (RCA) for continuous renal
replacement therapy is widely used in intensive care units (ICUs). However,
concern exists about the safety of citrate in patients with liver failure (LF).
The aim of this study was to evaluate safety and efficacy of RCA in ICU patients
with varying degrees of impaired liver function. METHODS: In a multicenter,
prospective, observational study, 133 patients who were treated with RCA and
continuous venovenous hemodialysis (RCA-CVVHD) were included. Endpoints for
safety were severe acidosis or alkalosis (pH ?7.2 or ?7.55, respectively) and
severe hypo- or hypercalcemia (ionized calcium ?0.9 or ?1.5 mmol/L, respectively)
of any cause. The endpoint for efficacy was filter lifetime. For analysis,
patients were stratified into three predefined liver function or LF groups
according to their baseline serum bilirubin level (normal liver function ?2
mg/dl, mild LF >2 to ?7 mg/dl, severe LF >7 mg/dl). RESULTS: We included 48
patients with normal liver function, 43 with mild LF, and 42 with severe LF. LF
was predominantly due to ischemia (39 %) or multiple organ dysfunction syndrome
(27 %). The frequency of safety endpoints in the three patient strata did not
differ: severe alkalosis (normal liver function 2 %, mild LF 0 %, severe LF 5 %;
p = 0.41), severe acidosis (normal liver function 13 %, mild LF 16 %, severe LF
14 %; p = 0.95), severe hypocalcemia (normal liver function 8 %, mild LF 14 %,
severe LF 12 %; p = 0.70), and severe hypercalcemia (0 % in all strata). Only
three patients showed signs of impaired citrate metabolism. Overall filter
patency was 49 % at 72 h. After censoring for stop of the treatment due to
non-clotting causes, estimated 72-h filter survival was 96 %. CONCLUSIONS:
RCA-CVVHD can be safely used in patients with LF. The technique yields excellent
filter patency and thus can be recommended as first-line anticoagulation for the
majority of ICU patients. TRIAL REGISTRATION: ISRCTN Registry identifier:
ISRCTN92716512 . Date assigned: 4 December 2008.
|Acid-Base Equilibrium/drug effects
[MESH]
|Acidosis/chemically induced
[MESH]
|Aged
[MESH]
|Alkalosis/chemically induced
[MESH]
|Anticoagulants/adverse effects/*therapeutic use
[MESH]
|Citric Acid/adverse effects/*therapeutic use
[MESH]