Utilization of Staging Laparoscopy for Patients With Gastric Cancer in Ukraine.

[BACKGROUND] The use of advanced diagnostic methods, such as high-resolution CT or PET-CT scans, are limited in low and middle-income countries (LMICs). In gastric cancer, occult peritoneal disease may be present in up to 20% of cases, limiting the benefits of surgical resection. Accurate staging of gastric cancer is essential to ensure optimal patient management and prevent undue morbidity from unnecessary surgery. Our study evaluated the diagnostic accuracy and safety of staging laparoscopy (SL) versus computed tomography (CT) in detecting peritoneal metastases for gastric cancer in Ukraine.

[METHODS] Patients who underwent SL between October 2017 and October 2022 were retrospectively reviewed. SL was performed for each newly diagnosed patient with gastric cancer without evidence of distant metastases, except when peritoneal carcinomatosis was in question. Pathological findings at SL were compared with initial CT reports, and analysis of the sensitivity and specificity for SL was performed.

[RESULTS] Of 516 patients undergoing SL, 410 had no radiological considerations for distant metastases. Among them, radiographically occult peritoneal metastatic disease was found in 134 (32.7%). Overall SL sensitivity for peritoneal metastases was 90.6% (95% confidence interval [CI]: 85.8%-94.1%) and specificity 100.0% (95% CI: 98.8%-100.0%). Complications after SL occurred in 5 (1%) of patients. No mortality was associated with SL.

[CONCLUSION] SL is a safe and effective method to evaluate the presence of peritoneal disease in patients with gastric cancer. This method may be appropriate for LMICs, where availability of advanced imaging technologies is limited.