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  • Title: Factors associated with endoscopic full-thickness resection of gastric submucosal tumors.
    Author: Yang F, Wang S, Sun S, Liu X, Ge N, Wang G, Guo J, Liu W, Feng L, Ma W.
    Journal: Surg Endosc; 2015 Dec; 29(12):3588-93. PubMed ID: 25894443.
    Abstract:
    OBJECTIVE: To identify factors that impact the procedure and treatment outcomes for endoscopic full-thickness resection (EFTR) of gastric submucosal tumors (SMTs). METHODS: Medical records were collected for all patients with gastric SMTs who underwent EFTR procedures in Shengjing Hospital between June 2012 and April 2014. The data from each patient were reviewed, including gender, age, maximum tumor size on endoscopic ultrasound (EUS), tumor location in stomach, length of EFTR procedure, pneumoperitoneum during EFTR, cost to close defects, length of hospital stay after the procedure, and procedure-related complications. RESULTS: Endoscopic full-thickness resection of gastric SMTs was successfully performed in all 41 patients. Maximum size on EUS [parameter estimate (PE) = 4.443, 95% confidence interval (CI) 2.191-6.695; p = 0.000] and tumor location in the greater curvature (PE = 44.441, 95% CI 5.539-83.343; p = 0.026) were significantly associated with the length of the procedure. A pneumoperitoneum was more likely to occur during EFTR in tumors with a larger EUS size [odds ratio (OR) = 1.415, 95% CI 1.034-1.936; p = 0.03], and less likely to occur during EFTR for tumors located in the posterior wall (OR = 0.003, 95% CI 0-0.351; p = 0.017). The use of the over-the-scope clip (OTSC) system was significantly associated with shorter hospital stays (PE = -1.006, 95% CI -1.998 to -0.014; p = 0.047) and a higher cost of closing defects (PE = 854.742, 95% CI 358.377-1351.107; p = 0.001). CONCLUSIONS: Endoscopic full-thickness resection is an effective and safe method for removing gastric SMTs. Tumor size on EUS and location of the tumor were associated with the duration of EFTR and the occurrence of a pneumoperitoneum during the procedure. The use of an OTSC system was significantly associated with shorter hospital stays and a higher cost of closing defects.
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