N-acetylcysteine in acute hepatic failure (non-paracetamol-induced)

Ziv Ben-Ari, Hanna Vaknin, Ran Tur-Kaspa

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


Background/Aims: Acute liver failure is a serious condition associated with poor prognosis. It may be associated with changes in systemic hemodynamics, i.e., tissue hypoxia, which contributes to multiple-organ failure. Recent studies have shown that N-acetylcysteine administered to patients with fulminant hepatic failure (paracetamol-induced) increases oxygen delivery and improves survival. The aim of this pilot study was to evaluate N-acetylcysteine administration to patients with non-paracetamol-induced acute liver failure and assess its effect on the clinical course and outcome. Methodology: N-acetylcysteine was administered at presentation to 7 patients with non-paracetamol-induced acute liver failure. Patients were followed for changes in clinical parameters (grade of encephalopathy), coagulation factors, biochemical parameters and outcome. Results: Clinically, 3 patients who initially had grade O/II encephalopathy, did not progress, and have fully recovered. The mean peak prothrombin time, serum factor V, aspartate aminotransferase and alanine aminotransferase levels, all significantly improved. Four patients (57%) have recovered fully (1 patient, although fully recovered, died later from an unrelated cause). Two patients required orthotopic liver transplantation and 1 patient died. N-acetylcysteine administration may have prevented progression to grade III/IV encephalopathy and improved serum coagulation factors. This may account for its beneficial effect on survival in patients who had poor prognostic criteria at base-line. No side effects of the drug were noted. Conclusions: This study suggests that N-acetylcysteine administration should be considered in all patients with acute liver failure.

Original languageEnglish
Pages (from-to)786-789
Number of pages4
Issue number33
StatePublished - 2000
Externally publishedYes


  • Acute liver failure
  • N-acetylcysteine


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