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Kotoh K, Enjoji M, Kato M, et al. A new parameter using serum lactate dehydrogenase and alanine aminotransferase level is useful for predicting the prognosis of patients at an early stage of acute liver injury: a retrospective study. Comp Hepatol. 2008;7:6doi: 10.1186/1476-5926-7-6.
Kotoh, K., Enjoji, M., Kato, M., Kohjima, M., Nakamuta, M., & Takayanagi, R. (2008). A new parameter using serum lactate dehydrogenase and alanine aminotransferase level is useful for predicting the prognosis of patients at an early stage of acute liver injury: a retrospective study. Comparative hepatology, 76. https://doi.org/10.1186/1476-5926-7-6
Kotoh, Kazuhiro, et al. "A new parameter using serum lactate dehydrogenase and alanine aminotransferase level is useful for predicting the prognosis of patients at an early stage of acute liver injury: a retrospective study." Comparative hepatology vol. 7 (2008): 6. doi: https://doi.org/10.1186/1476-5926-7-6
Kotoh K, Enjoji M, Kato M, Kohjima M, Nakamuta M, Takayanagi R. A new parameter using serum lactate dehydrogenase and alanine aminotransferase level is useful for predicting the prognosis of patients at an early stage of acute liver injury: a retrospective study. Comp Hepatol. 2008 Aug 14;7:6. doi: 10.1186/1476-5926-7-6. PMID: 18700988; PMCID: PMC2527551.
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Comp Hepatol. 2008 Aug 14;7:6. doi: 10.1186/1476-5926-7-6.

A new parameter using serum lactate dehydrogenase and alanine aminotransferase level is useful for predicting the prognosis of patients at an early stage of acute liver injury: a retrospective study.

Comparative hepatology

Kazuhiro Kotoh, Munechika Enjoji, Masaki Kato, Motoyuki Kohjima, Makoto Nakamuta, Ryoichi Takayanagi

Affiliations

  1. Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. [email protected]

PMID: 18700988 PMCID: PMC2527551 DOI: 10.1186/1476-5926-7-6

Abstract

BACKGROUND: Although most patients with severe acute hepatitis are conservatively cured, some progress to acute liver failure (ALF) with a high rate of mortality. Based on the evidence that over-activation of macrophages, followed by disturbance of the hepatic microcirculation, plays a key role in ALF, we hypothesized that the production of serum lactate dehydrogenase (LDH) might increase in the liver under hypoxic conditions and could be an indicator to discriminate between conservative survivors and fatal patients at an early stage.

RESULTS: To confirm this hypothesis, we developed a new parameter with serum alanine aminotransferase (ALT) and LDH: the ALT-LDH index = serum ALT/(serum LDH - median of normal LDH range). We analyzed retrospectively 33 patients suffering acute liver injury (serum ALT more than 1000 U/L or prothrombin time expressed as international normalized ratio over 1.5 at admission) and evaluated the prognostic value of the ALT-LDH index, comparing data from the first 5 days of hospitalization with the Model for End-Stage Liver Disease (MELD) score. Patients whose symptoms had appeared more than 10 days before admission were excluded from this study. Among those included, 17 were conservative survivors, 9 underwent liver transplantation (LT) and 7 died waiting for LT. We found a rapid increase in the ALT-LDH index in conservative survivors but not in fatal patients. While the prognostic sensitivity and specificity of the ALT-LDH index was low on admission, at day 3 they were superior to the results of MELD.

CONCLUSION: ALT-LDH index was useful to predict the prognosis of the patients with acute liver injury and should be helpful to begin preparation for LT soon after admission.

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