Journal
JOURNAL OF GASTROINTESTINAL SURGERY
Volume 26, Issue 10, Pages 2136-2147Publisher
SPRINGER
DOI: 10.1007/s11605-022-05381-2
Keywords
Pancreatic cancer; Multimodal Therapy
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Tumor location within the tail is independently associated with not receiving neoadjuvant chemotherapy in patients with clinical stage I-III pancreatic ductal adenocarcinoma (PDAC). Increasing the number of patients who receive chemotherapy is necessary due to the marked improvement in overall survival when chemotherapy is administered.
Background Chemotherapy (CTX) is associated with improved survival for patients undergoing resection for pancreatic ductal adenocarcinoma (PDAC). The current study evaluated the influence of tumor location on receipt of CTX. Methods The NCDB (2006-2017) was queried to identify patients with clinical stage I-III PDAC. Predictors of receipt of CTX, sequencing of CTX, and overall survival (OS) were analyzed. Results Among 14,557 patients who underwent resection for PDAC 3,453 (24%) did not receive CTX. On multivariable analysis, patients with tail tumors were 15% less likely to receive CTX (OR 0.85, 95% CI 0.747-0.968) and 58% less likely to receive neoadjuvant CTX (OR 0.42, 95% CI 0.351-0.509) relative to patients with head/neck tumors. For patients with body tumors, there was no difference in rates of administration or sequence of CTX. For patients with resected tail tumors, median OS was 29.9 vs 18.9 months (p <0.001) between those who did and did not receive CTX. For patients with tail tumors, independent predictors of not receiving CTX, regardless of sequence, were increasing age (OR 0.95, 95% CI 0.935-0.965), increasing post-op length of stay (OR 0.95, 95% CI 0.932-0.968), and 30-day post-op readmission (OR 0.46, 95% CI 0.315-0.670). Conclusions In patients with clinical stage I-III PDAC, tumor location within the tail was independently associated with not receiving CTX. Given the marked improvement in OS when CTX is administered, strategies aimed at increasing the number of these patients who receive CTX are necessary.
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