ArticleWorld journal of gastrointestinal surgery2026
Psoas muscle variables and adjuvant chemotherapy-related and survival outcomes following pancreaticoduodenectomy for periampullary malignancy.
Article in World journal of gastrointestinal surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundEarly skeletal muscle wasting has been demonstrated to be associated with chemotherapy-related toxicity in patients with cancer. Hounsfield unit average calculation (HUAC) or psoas muscle index (PMI) can be used to diagnose skeletal muscle wasting radiologically by calculations involving psoas muscle area.
aimTo evaluate ability of HUAC and PMI in predicting adjuvant chemotherapy (AC)-related and survival outcomes following pancreaticoduodenectomy for periampullary malignancy.
methodsA retrospective study of patients who underwent pancreaticoduodenectomy for periampullary malignancy was conducted. HUAC and PMI were determined from preoperative computed tomography scans. Time to AC, completion of AC, survival, failure to initiate AC, mortality during AC, AC-related toxicity, cancer progression during AC and non-chemotherapy-related complications were the outcome measures.
resultsA total of 148 patients were included of whom 62.2% completed AC. The AC was terminated due to toxicity in 33.9%, cancer progression in 25.0%, non-chemotherapy-related complications in 16.1%, or poor performance status in 3.5% of the patients. The 1-,3-,5-years survival rates were 85.1%, 29.7% and 19.9%, respectively. The overall median survival was 22.6 (76.8) months. HUAC was an independent predictor of time to AC (
conclusionUnlike PMI, preoperative HUAC, determined from psoas muscle area and density, may predict time to AC, AC-related toxicity and completion of AC following pancreaticoduodenectomy for periampullary cancers. However, its ability to predict survival should be evaluated by future research.
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