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Date Published: 28/01/2026
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DOI: https://doi.org/10.51298/vmj.v558i1.17001
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Vol. 558 No. 1 (2026)
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La, V. P., Phạm, V. L., & Võ , H. T. (2026). FACTORS ASSOCIATED WITH TREATMENT OUTCOMES OF ESOPHAGEAL AND GASTRIC SUBMUCOSAL TUMORS USING THE SUBMUCOSAL TUNNELING ENDOSCOPIC RESECTION (STER) TECHNIQUE WITH FLEXIBLE ENDOSCOPY. Vietnam Medical Journal, 558(1). https://doi.org/10.51298/vmj.v558i1.17001

FACTORS ASSOCIATED WITH TREATMENT OUTCOMES OF ESOPHAGEAL AND GASTRIC SUBMUCOSAL TUMORS USING THE SUBMUCOSAL TUNNELING ENDOSCOPIC RESECTION (STER) TECHNIQUE WITH FLEXIBLE ENDOSCOPY

Vĩnh Phúc La, Văn Lình Phạm, Huỳnh Trang Võ

Main Article Content

Abstract

Background: Submucosal Tunneling Endoscopic Resection (STER) is an advanced technique for the treatment of submucosal tumors (SMTs). Objective: To analyze factors associated with the treatment outcomes of esophageal and gastric submucosal tumors (SMTs) using Submucosal Tunneling Endoscopic Resection (STER). Methods: A prospective and retrospective study was conducted on 69 patients with submucosal tumors < 3 cm in diameter, performed at Can Tho University of Medicine and Pharmacy Hospital from October 2022 to February 2025. Results: The mean procedure time was 65.72 ± 46.81 minutes. Statistical analysis showed that tumor size was a significant factor affecting procedure time; the group with tumors ≥ 20 mm had significantly longer procedure times compared to the smaller tumor group (p=0.005). The complete resection rate reached 98.6%; however, no significant association was found between imaging characteristics (location, peritumoral vessels, growth pattern) and the complete resection rate (p > 0.05). Regarding recovery, full-thickness resection was identified as the only factor increasing the rate of postoperative pain at 24 hours (p=0.014). Conclusion: Tumor size is an important prognostic factor for the duration of the STER procedure. Preserving the serosal layer significantly helps reduce postoperative pain.

Article Details

Keywords

Submucosal tumor, submucosal tunneling endoscopic resection, STER.

References

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