Individual components of post-hepatectomy care pathways have differential impacts on length of stay

The value of individual variable contributions to post-hepatectomy length of stay (LOS) are difficult to quantify within bundled care pathways. Poisson regression and marginal effects models for prolonged post-hepatectomy LOS (>25% median) included Kawaguchi-Gayet (KG) complexity, perioperative variables, and pathways (minimally-invasive = MIS; low-intermediate-risk = KGI/II; high-risk = KGIII; combination). Median LOS was 2, 4, 5, and 5 days for MIS, KGI/II, KGIII and combination pathways (N = 978). Poisson regression identified age, intraoperative fluids, delayed diet tolerance, and combination cases as associated with increased LOS (p