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Background Early diagnosis of gastric cancer is essential for patient prognosis. Currently, endoscopic forceps biopsy (EFB) is an important tool for the diagnosis of gastric cancer. However, it has been shown in relevant studies that there are some differences between EFB-based diagnosis and pathological diagnosis after endoscopic submucosal dissection (ESD), resulting in an underestimation of the patient's condition. No related research has been conducted in northern Shaanxi. Objective To calculate the rate of pathological upgrading in gastric mucosal lesions after ESD in five hospitals in northern Shaanxi, and to analyze the factors associated with pathological upgrading. Methods We recruited patients with gastric mucosal lesions who underwent ESD following EFB in five hospitals (Yan'an University Affiliated Hospital, Yan'an People's Hospital, the First Hospital of Yulin, Yan'an Traditional Chinese Medicine Hospital, Zichang People's Hospital) from 2016 to 2021. We classified the pathological results of gastric mucosal lesions into the following categories: chronic gastric inflammatory changes (CIC), low-grade gastric intraepithelial neoplasia (LGIN), high-grade gastric intraepithelial neoplasia (HGIN), early gastric cancer (EGC) and progressive gastric cancer. The difference between EFB-based diagnosis and pathological diagnosis of ESD specimens was analyzed. Pathological upgrading was defined as progression in pathological results. The pathological upgrading in patients with CIC, LGIN or HGIN was counted. The factors associated with pathological upgrading were analyzed. Results A total of 241 patients were included. The EFB-based diagnosis of CIC, LGIN, HGIN, and EGC were 84, 75, 65, 17 cases, respectively. Seventy-six (31.5%) were found with pathological upgrading after ESD compared with their EFB-based diagnoses. Binary logistic regression analysis showed that endoscopic classification〔OR=0.134, 95%CI (0.029, 0.617) 〕 and superficial ulceration〔OR=3.595, 95%CI (1.226, 10.536) 〕 were associated with pathological upgrading in CIC by EFB-based diagnosis (P |
