Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz

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SHR Neuro Krebs Kardio Lipid Stoffw Microb

Kneidinger, N; Funk, GC; Lindner, G; Drolz, A; Schenk, P; Fuhrmann, V.
Unmeasured anions are associated with short-term mortality in patients with hypoxic hepatitis
WIEN KLIN WOCHENSCHR. 2013; 125(15-16): 474-480. Doi: 10.1007/s00508-013-0400-9
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Führende Autor*innen der Med Uni Graz: Kneidinger Nikolaus
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Abstract:: Hypoxic hepatitis is a common cause of hepatic impairment in critically ill patients and is an independent risk factor for mortality. An elevated level of unmeasured anions is another unfavourable prognostic marker in many disease entities. While the biochemical nature of unmeasured anions is unknown, data suggest that they may be released from the liver. Therefore, the purpose of this study was to determine whether the strong ion gap-the gold standard for estimation of unmeasured anions-is elevated and associated with outcome in patients with hypoxic hepatitis. One hundred and five consecutive patients with hypoxic hepatitis admitted to the (intensive care unit) ICU of a university hospital were prospectively included in the study and compared with 15 healthy controls. Compared with the controls, patients with hypoxic hepatitis had an elevated strong ion gap (4.0 +/- 2.6 vs. 7.8 +/- 4.0 mmol/L; p = 0.0002) that contributed to metabolic acidosis. Patients dying within 5 days had a larger strong ion gap upon admission than did patients surviving beyond 5 days. The mean strong ion gap (SIG) over the course of the first 5 days after admission to the ICU was 1.3 mmol/L (0.3-2.3 mmol/L) larger in patients who died compared with patients who survived, p = 0.008. In multivariate Cox-regression, larger strong ion gaps were associated with shorter survival time. The SIG correlated positively with both AST and ALT. Unmeasured anions are elevated in patients with hypoxic hepatitis, contribute to metabolic acidosis and are associated with mortality. The liver is a possible source of the unmeasured anions, which may represent markers of tissue damage in hypoxic hepatitis.
Find related publications in this database (Keywords): Unmeasured anions; Strong ion gap; Hypoxic hepatitis; Shock liver; Acid-base; Acidosis