Year 2023 / Volume 115 / Number 8
Original
Delays to surgery following chemoradiotherapy lead to poorer oncologic outcomes in patients with localized pancreatic adenocarcinoma

428-434

DOI: 10.17235/reed.2022.9256/2022

Javier A. Cienfuegos, Pablo Martí-Cruchaga, Gabriel Zozaya, José Luis Hernández Lizoain, Fernando Martínez Regueira, Fernando Pardo, Javier Rodríguez, Leire Arbea Moreno, Fernando Rotellar,

Abstract
Background: although neoadjuvant chemoradiotherapy (NCRT) and surgery are accepted as treatments for pancreatic ductal adenocarcinoma (PDAC), some authors have highlighted the risks of delaying surgery. The objective of this study was to analyze the impact of prolonging the time interval between NCRT and surgery (NCRT-TTS) in PDAC. Methods: patients treated with NCRT and pancreatoduodenectomy (PD) were identified. Clinical, histopathological variables were analyzed about whether NCRT-TTS was greater or less than 50 days. Five- and ten-year overall survival (OS) and disease-free survival (DFS) were analyzed depending on whether the delay was greater than 50 days or not. Results: one hundred (8.3 %) of 120 eligible patients underwent PD (61 male, median age of 63.7 years). In 71 (71 %) patients, the median NCRT-TTS was 39 (24-50) days and in 29 (29 %) 61 days. There were no differences between the two groups except for carbohydrate antigen 19-9 (CA 19-9) levels, the incidence of cholangitis, American Society of Anesthesiologists (ASA) score, intraoperative blood transfusions and degree of histopathologic response (all p < 0.001). Median DFS when the NCRT-TTS was less than 50 days was higher than when the interval exceeded 50 days (51.0 months [95 % CI: 20.3-81.6] vs 17.0 months [95 %: CI 10.9-23.0]; HR [95 % CI 1.08-3.46], p = 0.026). Five-year DFS was higher in the subgroup with NCRT-TTS of less than 50 days compared to the group with an interval of more than 50 days (43.5 % vs 23.65 % [HR 1.812, 95 % CI: 1.001-3.280], p = 0.050). Conclusions: an increase in the NCRT-TTS > 50 days is associated with poorer OS and DFS in patients with localized PDAC treated with NCRT and PD.
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Cienfuegos J, Martí-Cruchaga P, Zozaya G, Hernández Lizoain J, Martínez Regueira F, Pardo F, et all. Delays to surgery following chemoradiotherapy lead to poorer oncologic outcomes in patients with localized pancreatic adenocarcinoma. 9256/2022


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Publication history

Received: 04/10/2022

Accepted: 08/11/2022

Online First: 22/11/2022

Published: 26/07/2023

Article Online First time: 49 days

Article editing time: 295 days


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