The Impact of the COVID-19 Pandemic on Esophageal and Gastric Cancer Surgery in Germany: A Four-Year Retrospective Single-Center Study of 287 Patients.

Background: Disruptions to surgical care for cancer patients during the COVID-19 pandemic remain an ongoing debate. This study assesses the effects of the COVID-19 pandemic on perioperative outcomes in a continuous series of surgically treated esophageal and gastric carcinoma patients at a large university hospital in Europe over 48 months. Methods: We conducted a retrospective single-center cohort study at a tertiary referral center. All patients who underwent oncologic esophageal or gastric resection between March 2018 and February 2022 were included in the analysis. The sample was split into a 24 months COVID-19 and an equivalent pre-COVID-19 control period. Outcome variables included caseload, in-hospital mortality, morbidity, treatment course, and disease stage at presentation. Results: Surgeons performed 287 operations, with around two-thirds (62%) of the cohort undergoing esophagectomy and one-third (38%) gastrectomy. The in-hospital mortality was 1% for the COVID-19 and the control periods. Patients did not present at a later disease stage nor did they wait longer for treatment. There was no decrease in caseload, and patients did not suffer from more perioperative complications during COVID-19. Conclusions: Esophageal and gastric carcinoma patients received safe and timely surgical care during the pandemic. Future pandemic protocols may streamline oncologic care towards tertiary referral centers.