Yonsei Med J.  2021 Oct;62(10):877-884. 10.3349/ymj.2021.62.10.877.

Clinical Implication of Hypoxic Liver Injury for Predicting Hypoxic Hepatitis and In-Hospital Mortality in ST Elevation Myocardial Infarction Patients

Affiliations
  • 1Department of Cardiology, Inha University Hospital, Incheon, Korea
  • 2Department of Cardiology, Sejong General Hospital, Bucheon, Korea
  • 3Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Korea
  • 4Department of Cardiology, Gil Medical Center, Gachon University, Incheon, Korea
  • 5Department of Cardiology, Soon Chun Hyang University Bucheon Hospital, Bucheon, Korea
  • 6Division of Cardiology, CHA Medical Center, Ilsan Hospital, Goyang, Korea

Abstract

Purpose
In this study, we aimed to determine the value of hypoxic liver injury (HLI) in the emergency room (ER) for predicting hypoxic hepatitis (HH) and in-hospital mortality in ST elevation myocardial infarction (STEMI) patients.
Materials and Methods
1537 consecutive STEMI patients were enrolled. HLI in the ER was defined as a ≥2-fold increase in serum aspartate transaminase (AST). HH was defined as a ≥20-fold increase in peak serum transaminase. Patients were divided into four groups according to HLI and HH status (group 1, no HLI or HH; group 2, HLI, but no HH; group 3, no HLI, but HH; group 4, both HLI and HH).
Results
The incidences of HLI and HH in the ER were 22% and 2%, respectively. In-hospital mortality rates were 3.1%, 11.8%, 28.6%, and 47.1% for groups 1, 2, 3, and 4, respectively. Patients with HLI and/or HH had worse Killip class, higher cardiac biomarker elevations, and lower left ventricular ejection fraction. Multivariate logistic regression analysis showed that HLI in the ER was an independent predictor of HH [odds ratio 2.572, 95% confidence interval (CI) 1.166–5.675, p=0.019]. The predictive value of HLI in the ER for the development of HH during hospitalization was favorable [area under the curve (AUC) 0.737, 95% CI 0.643–0.830, sensitivity 0.548, specificity 0.805, for cut-off value AST >80]. Furthermore, in terms of in-hospital mortality, predictive values of HLI in the ER and HH during hospitalization were comparable (AUC 0.701 for HLI at ER and AUC 0.674 for HH).
Conclusion
Among STEMI patients, HLI in the ER is a significant predictor for the development of HH and mortality during hospitalization (INTERSTELLAR ClinicalTrials.gov number, NCT02800421).

Keyword

STEMI; hypoxic liver injury; hypoxic hepatitis; in-hospital mortality
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