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Updated: May 22, 2026

Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
Published on: January 16, 2019
[Liver parameters in intensive care medicine].
V Penndorf1, F Saner2, G Gerken1
1Universitätsklinikum Essen, Abteilung für Gastroenterologie und Hepatologie, Essen, Deutschland.
Elevated liver function tests in intensive care unit (ICU) patients indicate higher mortality risk. Identifying and treating the underlying cause of liver dysfunction is crucial for patient outcomes.
Area of Science:
- Critical Care Medicine
- Hepatology
- Clinical Biochemistry
Background:
- Elevated liver function tests (LFTs) in ICU patients are linked to increased mortality.
- Causes include chronic liver disease, acute events, and therapeutic complications.
Purpose of the Study:
- To outline diagnostic approaches for liver dysfunction in ICU patients.
- To emphasize the importance of identifying and managing the root cause of liver injury.
Main Methods:
- Assessment of liver cell integrity markers (AST, ALT, GLDH).
- Evaluation of cholestasis parameters (bilirubin, GGT, ALP).
- Analysis of liver synthetic function (albumin, coagulation profile).
- Utilizing ultrasound and elastography for assessing chronic liver disease, cholestasis, and liver perfusion.
- Integrating patient's ICU medical history for result interpretation.
Main Results:
- Liver injury in the ICU can stem from septic or ischemic complications, toxic effects, or parenteral nutrition.
- Specific LFT panels help differentiate causes of liver damage.
Conclusions:
- Prompt diagnosis and management of liver dysfunction are essential in critically ill patients.
- A comprehensive diagnostic strategy combining biochemical markers and imaging is recommended.
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