Gloor, Severin; Jiang, Wanjie; Maurer, Martin H; Gottstein, Bruno; Oberli, Alexander Oliver; Hagemann, Jürgen B; Hotz, Julian F; Candinas, Daniel; Lachenmayer, Anja; Grüner, Beate; Beldi, Guido (2024). The trajectory of anti-recEm18 antibody levels determines follow-up after curative resection of hepatic alveolar echinococcosis. HPB : the official journal of the International Hepato Pancreato Biliary Association, 26(2), pp. 224-233. Elsevier 10.1016/j.hpb.2023.10.007
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INTRODUCTION
Recurrence after curative resection of hepatic alveolar echinococcosis remains a clinical challenge. The current study tested if assessment of anti-recEm18 allows for postsurgical patient surveillance.
METHODS
A retrospective study with patients undergoing liver resection for alveolar echinococcosis (n = 88) at the University Hospital Bern from 2002 to 2020 and at the University Hospital and Medical Center Ulm from 2011 to 2017 was performed. Analysis was directed to determine a potential association of pre- and postoperative values of anti-recEm18 with clinical outcomes.
RESULTS
Anti-recEm18 had a linear correlation to the maximum lesion diameter (R2 = 0.558). Three trajectories of anti-recEm18 were identified based on a threshold of 10 AU/ml: "Em18-low" (n = 31), "responders" (n = 53) and "residual disease" (n = 4). The decline of anti-recEm18 in "responders" reached a plateau after 10.9 months at which levels decreased by 90%. The only patient with recurrence in the entire population was also the only patient with a secondary increase of anti-recEm18.
CONCLUSION
In patients with preoperative elevated values, anti-recEm18 confirms curative surgery at 12 months follow-up and allows for long-term surveillance.
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