Lactate is a prognostic marker of acute liver failure in early identification of patients susceptible to liver transplantation following acute acetaminophen poisoning.
Masoumeh Ebrahimi Medisah, Mahdieh Sadat Badiee, Masoud Mahdavinia, Hassan Motamed, Ali Hasan Rahmani
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引用次数: 0
Abstract
Background: Acetaminophen (APAP) is the most commonly used analgesic and antipyretic drug, and its intentional or accidental overdose can lead to acute liver failure (ALF). Rapid prognosis and the selection of appropriate patients for transplantation in ALF are crucial. Lactate is the end product of anaerobic glycolysis and an indicator for determining the oxygen status in cells. The aim of this study was to investigate the relationship between serum lactate level and the prognosis of ALF due to acute APAP poisoning in patients referred to Razi Hospital, Ahvaz.
Methods: This cross-sectional and prospective study was conducted on 34 healthy individuals (as controls) and 34 patients diagnosed with acute APAP poisoning. Serum levels of APAP, lactate, alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total bilirubin (T.bil), direct bilirubin (D.bil), and gamma-glutamyl transferase (GGT) were measured in healthy individuals and patients with acute APAP poisoning within 24 hours of admission. The relationship between the dose of APAP consumed, the amount of N-acetylcysteine (NAC) received, and the age and gender of the patients with lactate level was also evaluated.
Results: The mean dose of APAP in the patients was 10.75 gr. A total of 85% of the patients received NAC. The mean volume of NAC injection was 4.4 mmol/L. The number of women with APAP overdose was higher than men. Lactate level increased with increasing APAP doses. The mean serum lactate level significantly reduced after 24 hours compared to the initial admission, and the levels of liver markers increased significantly after 24 hours.
Conclusion: In order to accept lactate as an international criterion in early identification of liver transplant candidate patients and reduce their mortality, clinical validity studies including definition and validation of clinical conditions related to lactate level and reliability tests are necessary. Therefore, early and periodic determination of serum lactate level seems to be essential as a promising biomarker for the prognosis of ALF caused by acute APAP poisoning.
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