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Comparative Study
Journal Article
Endoscopic resection for small esophageal submucosa tumor: Band ligation versus conventional endoscopic mucosal resection.
Medicine (Baltimore) 2017 August
Because an esophageal submucosa tumor (SMT) may be malignant despite its small size, a safe endoscopic resection method is needed in some small SMTs. Conventional endoscopic mucosal resection (EMR) may be simple, but incomplete pathologic resection margin status is common. We aimed to investigate the clinical outcomes of 2 kinds of EMR techniques (conventional EMR and EMR with band ligation device) and to evaluate the factors associated with incomplete pathologic resection.We evaluated the medical records of 36 patients. All lesions were esophageal SMTs located in the submucosa or muscularis mucosa less than 10 mm in size by endoscopic ultrasound (EUS). The clinical outcomes based on the endoscopic procedures and factors associated with incomplete pathologic resection were evaluated.The mean tumor size was 6.6 ± 4.1 mm. The overall en bloc and complete resection rates were 100% and 80.6%, respectively. No procedure-related complications, such as perforation and bleeding, were found. Univariate analysis showed that complete resection rates were higher in granular cell tumors than in leiomyomas (82.8% vs 17.2%, P = .029), tumors located in the submucosa layer than in the muscularis mucosa (96.6% vs 3.4%, P = .003), and in EMR with band ligation device than in conventional EMR (82.8% vs 17.2%, P < .001). Multivariate analysis showed that conventional EMR was the only significant factor associated with incomplete resection (OR, 35.594; 95% CI, 2.042-520.329; P = .014)EMR with a band ligation device is an effective and safe treatment method for small esophageal SMT.
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