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. 2017 Dec;31(12):5183-5191.
doi: 10.1007/s00464-017-5585-y. Epub 2017 Jun 8.

Safety and efficacy of endoscopic submucosal dissection of large (≥3 cm) subepithelial tumors located in the cardia

Jun Li  1 , Jian Tang  1 , G W Lua  2 , Jie Chen  1 , Xingang Shi  1 , Feng Liu  3 , Zhaoshen Li  4
Affiliations

Safety and efficacy of endoscopic submucosal dissection of large (≥3 cm) subepithelial tumors located in the cardia

Jun Li et al. Surg Endosc. 2017 Dec.

Abstract

Background: Upper gastrointestinal subepithelial tumors (SETs) may harbor potential malignancy. Although it is well recognized that large SETs should be resected, the treatment strategy remains controversial. Compared to surgical resection, endoscopic resection has many advantages such as less invasive, shorter hospital stay, lower costs, and better quality of life. However, Endoscopic resection of large SETs in the cardia is challenging. The purpose of this study was to evaluate the safety and efficacy of endoscopic submucosal dissection (ESD) in the treatment of such SETs.

Methods: A total of 41 patients with large SETs (≥3 cm in diameter) located in the cardia were involved in the study. All patients underwent ESD. Data on therapeutic outcomes and follow-up were collected, for analysis of risk factors of complication rates.

Results: The average tumor size was 4.7 ± 1.7 cm. The average procedure time was 69.3 ± 32.7 min and the average postoperative hospital stay was 3.5 ± 1.1 days. A total of 41 tumors were removed successfully, in which 35 were leiomyomas, three were gastrointestinal stromal tumors, two were lipomas, and one was gastritis cystica profunda. The en bloc resection rate was 90.2%, and was significantly higher for tumors with a round or oval shape (100%) than for those with an irregular shape (75.0%) (P < 0.05). Five patients experienced complications (12.2%), all of which were managed conservatively. The complication rates were significantly higher in patients with a tumor originating from the deep muscularis propria layer and demonstrating a trans-cardia growth pattern. No residual or tumor recurrence was observed and no stricture occurred during the follow-up period (average, 26.7 ± 18.4 months).

Conclusions: ESD is safe and effective to curatively remove most large SETs in the cardia, and may serve as an accurate histopathology measurement to direct future therapy.

Keywords: Cardia; Endoscopic submucosal dissection; Subepithelial tumor; Submucosal tumor.

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