Abnormal liver function tests are associated with increased mortality in both cardiothoracic and general intensive care
© Musa et al; licensee BioMed Central Ltd. 2009
Published: 13 March 2009
The objective of this study was to identify differences in liver function tests (LFT) between patients admitted to a general ICU (GICU) and a cardiothoracic ICU (CTICU), and the effect on mortality. Liver dysfunction (LD) in critically ill patients is common and is associated with increased mortality and prolonged ICU stay . Patients undergoing cardiothoracic surgery are anecdotally at increased risk of LD as a consequence of haemodynamic instability.
A retrospective study of all first admissions to the CTICU and the GICU between 1 October 2006 and 31 March 2007 was performed. LFT were obtained from the Chemical Pathology Department. Patient demographics and mortality were established from the hospital electronic patient record.
Abnormal LFT on admission to the ICU and associated 30-day mortality
Abnormal on admission (%)
Mortality odds ratio (95% CI)
1.35 (0.93 to 1.97)
1.99 (1.05 to 3.79)*
2.23 (1.46 to 3.39)*
5.07 (2.62 to 9.83)*
2.24 (1.34 to 3.74)*
2.92 (1.08 to 7.59)*
1.87 (1.28 to 2.73)*
4.01 (2.08 to 7.70)*
Abnormal LFT are common in critically ill patients on admission to the ICU. Patients with subtle LD on admission are at increased risk of mortality in both groups. An abnormal bilirubin has a greater impact in patients admitted to the CTICU than the GICU.
- Thomson S, et al.: Increased mortality and length of stay related to abnormal liver function tests on admission to the general intensive care unit: a six month retrospective analysis [abstract]. Gut 2008,57(Suppl I):A85.Google Scholar
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