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Updated: Jun 6, 2026
Evaluation of the Effectiveness of Longitudinal Incision for Endoscopic Submucosal Excavation of Gastric Subepithelial Lesions
Published on: April 28, 2026
Short term results of endoscopic submucosal dissection in superficial esophageal squamous cell neoplasms
Kouichi Nonaka1, Shin Arai, Keiko Ishikawa
1Kouichi Nonaka, Shin Arai, Keiko Ishikawa, Masamitsu Nakao, Yousuke Nakai, Osamu Togawa, Hiroto Kita, Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama 350-1298, Japan.
Aim:
To evaluate the efficacy of endoscopic submucosal dissection for superficial esophageal squamous cell neoplasms.
Methods:
Between July 2007 and March 2009, 27 consecutive superficial esophageal squamous cell neoplasms in 25 enrolled patients were treated by endoscopic submucosal dissection. The therapeutic efficacy, complications, and follow-up results were assessed.
Results:
The mean size of the lesions was 21 ± 13 mm (range 2-55 mm); the mean size of the resection specimens was 32 ± 12 mm (range 10-70 mm). The en block resection rate was 100% (27/27), and en block resection with tumor-free lateral/basal margins was 88.9% (24/27). Perforation occurred in 1 patient who was managed by conservative medical treatments. None of the patients developed local recurrence or distant metastasis in the follow-up period.
Conclusion:
Endoscopic submucosal dissection is applicable to superficial esophageal squamous cell neoplasms with promising results.
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