A decision analysis comparing three strategies for peritoneal lavage cytology testing in staging of gastric cancer in China

摘要

Positive peritoneal cytology (PCY) indicates metastasis (M1) in gastric cancer (GC) patients; both the American and Chinese guidelines recommend laparoscopic peritoneal lavage (LPL) for cytology. However, relatively high costs impair the widespread use of LPL in some resource‐limited regions in China, and the cost‐effectiveness of PCY testing remains unclear. Therefore, we performed a decision analysis to evaluate the cost‐effectiveness of PCY testing by comparing the guideline‐recommended intraoperative LPL, a newly proposed preoperative percutaneous peritoneal lavage (PPL), and a third strategy of exploratory laparotomy with no cytology testing (ELNC) among GC patients.