Prognostic impact of preoperative cachexia in patients undergoing major hepatopancreatobiliary surgery for malignancy

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BACKGROUND & AIMS: Data regarding the association between cachexia and clinical outcomes in hepatopancreatobiliary (HPB) malignancies are limited. This retrospective study sought to investigate the prognostic significance of preoperative cachexia in patients undergoing major HPB surgery for malignancies. METHODS: ) and decreased handgrip strength (<28 kg [males] and <18 kg [females]) or elevated C-reactive protein level (>0.5 mg/dL). The primary endpoint was postoperative overall survival (OS); secondary endpoints included disease-free survival (DFS) and postoperative complications. RESULTS: Of 332 patients (228 male; mean age, 68.8 ± 10.3 years), 93 (28 %) had preoperative cachexia. There were 154 (46 %) deaths and 181 (55 %) combined events (death or recurrence) during a five-year follow-up (mean, 3.3 ± 1.7 years), with no significant differences in major postoperative complications between the 2 groups (P = 0.329). After adjusting for covariates, cachexia (n = 93) exhibited significant associations with shorter OS (adjusted hazard ratio [HR] 1.65 [95 % confidence interval (CI) 1.18-2.30]; P = 0.004) and DFS (adjusted HR 1.39 [95 % CI 1.01-1.91; P = 0.043) compared with non-cachexia (n = 239). Cachexia significantly shortened OS only in a subset with pathological stage ≤ II disease (adjusted HR 2.45 [95 % CI 1.27-4.74]; P = 0.008) but not otherwise (P for interaction, 0.040). CONCLUSIONS: Preoperative cachexia did not affect short-term surgical complications but significantly deteriorated postoperative prognosis in patients who underwent surgery for HPB malignancies.

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