• Selena S Li, Brooks V Udelsman, Aparna Parikh, Samuel J Klempner, Jeffrey W Clark, Eric J Roeland, Jennifer Y Wo, Theodore S Hong, and John T Mullen.
• Department of Surgery, Boston, MA; Massachusetts General Hospital, and Harvard Medical School, Boston, MA.
• J. Am. Coll. Surg. 2020 Jun 1; 230 (6): 912-924.

BackgroundPostoperative complication (POC) adversely impacts long-term survival in patients with gastric cancer, perhaps due in part to lower rates for receipt of multimodality therapy (MMT). We sought to determine the impact of POC on MMT completion rates and overall survival (OS) in patients with locally advanced gastric cancer.Study DesignWe analyzed 206 patients with locally advanced gastric cancer undergoing curative-intent resection from 2001 to 2015. POCs were graded using Clavien-Dindo classification and survival outcomes were compared between groups.ResultsOne hundred and twenty patients underwent operation followed by chemoradiation therapy, 58 received perioperative chemotherapy, and 28 received total neoadjuvant therapy (TNT). Minor (Clavien-Dindo grade I to II) and major (Clavien-Dindo grade III to IV) POC occurred in 72 (35.0%) and 39 (18.9%) patients, respectively. At median follow-up of 37 months, the 3-year OS of patients experiencing a major, minor, or no POC were 33.3%, 56.9%, and 62.1% (p = 0.023), respectively. In contrast, there was no difference in 3-year OS rates in patients experiencing POC if they completed all intended MMT. Non-TNT patients who experienced a major POC were less likely to complete MMT (hazard ratio 0.36, p = 0.017), and a major POC in these patients had a significant impact on OS (hazard ratio 2.76, p = 0.011), and it did not in patients who completed MMT (hazard ratio 1.58, p = 0.336).ConclusionsMajor POC adversely affects long-term survival after gastrectomy for gastric cancer, at least in part via lower completion rates of MMT. Treatment strategy designed to ensure the completion of MMT, such as TNT, might be preferable, particularly for patients at high risk for POCs.Copyright © 2020 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

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