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Minerva Anestesiologica 2021 Oct 28

DOI: 10.23736/S0375-9393.21.15860-2

Copyright © 2021 EDIZIONI MINERVA MEDICA

language: English

Acute kidney injury after liver transplantation, perioperative risk factors, and outcome: prospective observational study of 1681 patients (OLTx Study)

Silvia FIORELLI 1 , Giandomenico BIANCOFIORE 2, Paolo FELTRACCO 3, Bruna LAVEZZO 4, Andrea DE GASPERI 5, Livia POMPEI 6, Lucia MASIERO 7, Silvia TESTA 7, Andrea RICCI 7, Giorgio DELLA ROCCA 6, on behalf of the OLTx Study Group

1 Department of Anesthesiology and Intensive care, Sapienza University of Rome, Rome, Italy; 2 Azienda Ospedaliera Pisana, University of Pisa, Pisa, Italy; 3 Azienda Ospedaliera Universitaria Padova, Padua, Italy; 4 AOU Città della Salute e della Scienza, presidio Molinette, Turin, Italy; 5 Ospedale Niguarda Ca' Granda, Milan, Italy; 6 Department of Medical Area, University of Udine, Udine, Italy; 7 Centro Nazionale Trapianti, ISS, Rome, Italy


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BACKGROUND: Acute kidney injury (AKI) represents a frequent complication after orthotopic liver transplantation (OLT). This study aimed to evaluate early postoperative AKI incidence during the first 72 h after OLT, perioperative risk factors, and AKI impact on survival.
METHODS: From January 2011 to December 2013) 1681 patients underwent OLT in 19 centers and were enrolled in this prospective cohort study.
RESULTS: According to RIFLE criteria, AKI occurred in 367 patients, 21.8% (R: 5.8%, I: 6.4%, F: 4.8%, L: 4.8%). Based on multivariate analysis, intraoperative risk factors for AKI were: administration of 5-10 RBCs (OR 1.8, 95%CI 1.3-2.7), dopamine use (OR 1.6, 95%CI 1.2-2.3), post-reperfusion syndrome (OR 1.5, 95%CI 1.0-2.3), surgical complications (OR 2.0, 95% CI 1.3-3.0), and cardiological complications (OR 2.2, 95%CI 1.2-4.0). Postoperative risk factors were: norepinephrine (OR 1.4, 95%CI 1.0-2.0), furosemide (OR 4.2, 95% CI 3.0-5.9), more than 10 RBCs transfusion, (OR 3.7, 95%CI 1.4-10.5), platelets administration (OR 1.6, 95% CI 1.1-2.4), fibrinogen administration (OR 3.0, 95%CI, 1.5-6.2), hepatic complications (OR 4.6, 95%CI 2.9-7.5), neurological complications (OR 2.4, 95%CI 1.5-3.7), and infectious complications (OR 2.7, 95%CI 1.8-4.3). NO-AKI patients’ 5 years survival rate was higher than AKI patients (68.06, 95% CI 62.7-72.7 and 81.2, 95% CI 78.9-83.3, p< 0.001).
CONCLUSIONS: AKI still remains an important risk factor for morbidity and mortality after OLT. Further researches to develop new strategies aimed at preventing or minimizing post-OLT AKI are needed.


KEY WORDS: Liver transplantation; Acute kidney injury; Anesthesia; Critical care medicine

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