AUTHOR=Favrod-Coune Thierry , Lidsky Déborah , Vionnet Julien , Magini Giulia , Déglon Julien , Broers Barbara TITLE=A false positive hair ethylglucuronide dosage in an alcohol abstinent patient after liver transplantation: a case report JOURNAL=Frontiers in Medicine VOLUME=Volume 11 - 2024 YEAR=2024 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2024.1363012 DOI=10.3389/fmed.2024.1363012 ISSN=2296-858X ABSTRACT=

The use of direct alcohol biomarkers (ethylglucuronide and phosphatidylethanol) has recently been implemented in a clinical setting. Due to their low alcohol detection threshold, high sensitivity, and specificity, these tools are very useful in the pre- and post-liver transplantation setting, where the history and physical signs are not always reliable. However, the interpretation of the results can sometimes be misleading and must be integrated into a global clinical evaluation and, more importantly, in the clinical context of each patient. We present here a case report illustrating a false-positive hair ethylglucuronide caused by the application of a capillary gel in an abstinent patient after liver transplantation. This reminds us that even the most accurate laboratory tests must be interpreted with caution.