Sitzung

27 - Freie Mitteilung
HPB I
15. Mai 2019, 15:30 - 17:00, Bellavista 2, 6. OG

Abstract

4
Systematic review and meta-analysis of thrombocytopenia as a predictor of post-hepatectomy liver failure
J. Meyer, A. Balaphas, C. Combescure, P. Morel, C. Gonelle-Gispert, L. Bühler, Presenter: J. Meyer (Genève)

Ziel
Platelet counts correlate with liver regeneration and post-hepatectomy liver failure in animal models. To determine if a similar effect of platelet count exists in humans, we performed a systematic review and meta-analysis to assess whether thrombocytopenia constituted a risk factor for post-hepatectomy liver failure (PHLF).
Methoden
We searched MEDLINE and EMBASE from inception until February the 17th, 2018 for studies reporting cases of PHLF in patients with and without thrombocytopenia (defined as a platelet count below 100 or 150 (G/l)) and/or platelet counts in patients with and without PHLF. Pooled odd ratios for PHLF, as well as mean difference in platelet counts between patients with and without PHLF, were obtained by random effects models. Robustness was tested by subgroups and leave-one out sensitivity analyses. Heterogeneity was assessed using the Q-test and quantified based on I2 value.
Resultate
We included 15 studies representing 3966 patients. Pooled odds ratio for PHLF in thrombocytopenic patients was 3.71 (95% CI : 2.51 to 5.48 ; I2=0%). Pooled odds ratio was 5.53 (95% CI: 2.85 to 10.48) when pooling only studies based on preoperative platelet count, and 3.13 (95% CI: 1.75 to 5.58) when pooling studies including only patients without liver cirrhosis. The pooled mean difference in platelet counts between patients with and without PHLF was -21.2 (G/l) (95% CI: -36.1 to 6.4) in disfavor of patients with PHLF. When pooling only patients with various qualities of liver tissue, the pooled mean difference was 0.6 (G/l) (95% CI: -21.1 to 22.2).
Schlussfolgerung
Preoperative and/or postoperative thrombocytopenia constitute significant risk factors for PHLF in cirrhotic and non-cirrhotic patients.
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