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Life sciences · Journal article
The American Surgeon · October 9, 2026
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Background Sarcopenia is associated with worse outcomes in pancreatic cancer patients, but longitudinal body composition changes during neoadjuvant therapy remain poorly understood. Methods A retrospective review identified patients who underwent pancreatectomy, either upfront or after neoadjuvant therapy, for pancreatic adenocarcinoma between 2011 and 2021. Skeletal muscle area, index, and mean attenuation were calculated from CT images throughout the treatment course to assess sarcopenia. Multivariable generalized linear and logistic regression models were used to assess associations between sarcopenia, neoadjuvant therapy, and postoperative outcomes. Results A total of 72 patients were included: 32 who underwent neoadjuvant therapy and 40 who underwent upfront surgery. Forty-one (57%) patients had sarcopenia at diagnosis (65% upfront surgery vs 47% neoadjuvant, P = 0.154). Post-neoadjuvant therapy, 15.6% developed and 18.8% resolved sarcopenia. Median skeletal muscle mean attenuation increased by 2.4 HU after neoadjuvant therapy ( P = 0.02). Patients receiving neoadjuvant therapy were more likely to undergo nutrition consultation prior to surgery (61% vs 7%, P = 0.003). Neoadjuvant therapy was also associated with higher postoperative albumin levels (β = 0.244; 95% CI 0.041-0.446). Baseline sarcopenia diagnosed by skeletal muscle area was associated with increased postoperative complications (OR 13.696; 95% CI 2.537-73.921), while neoadjuvant therapy did not significantly impact complications (OR 0.384; 95% CI 0.12-1.226). Conclusions Patients who completed neoadjuvant therapy and underwent resection did not have increased rates of sarcopenia and were more likely to receive preoperative nutrition consultation and have higher postoperative albumin levels. The neoadjuvant period may represent an opportunity for sarcopenia assessment, nutritional optimization, and multimodal prehabilitation prior to pancreatectomy.