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Gastrointest Endosc. 2009 Nov;70(5):860-6. doi: 10.1016/j.gie.2009.04.044. Epub 2009 Jul 4.

Long-term outcomes of endoscopic submucosal dissection for superficial esophageal squamous cell neoplasms.

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1
Department of Gastroenterology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.

Abstract

BACKGROUND:

The long-term outcomes of endoscopic submucosal dissection (ESD) for superficial esophageal squamous cell neoplasms (ESCNs) have not been evaluated to date.

OBJECTIVE:

Assess the long-term outcomes of ESD for ESCNs from our consecutive cases.

DESIGN AND SETTING:

Retrospective study from a single institution.

PATIENTS AND INTERVENTION:

From January 2002 to July 2008, 107 superficial ESCNs in 84 patients were treated by ESD. The enrolled patients were divided into 2 groups based on the lesion with the deepest invasion in each patient: group A, intraepithelial neoplasm or invasive carcinoma limited to the lamina propria mucosa and group B, invasive carcinoma deeper than the lamina propria mucosa.

MAIN OUTCOME MEASUREMENTS:

Rates of en bloc resection, complete resection, and complication were evaluated as short-term outcomes. Overall survival, cause-specific survival, and postoperative stricture rates were evaluated as long-term outcomes.

RESULTS:

The rates of en bloc resection and complete resection were 100% and 88%, respectively. Perforation accompanied by mediastinal emphysema was observed in 4 (4%) patients. No patient experienced massive bleeding. During the median observation of 632 days (range 8-2358), 15 (18%) patients experienced benign esophageal stricture with dysphagia, which was successfully managed by balloon dilation for a median of 2 sessions (range 1-20). One patient had local recurrence 6 months after ESD. In 2 patients with intramucosal invasive carcinomas in the muscularis mucosa, distant metastases were observed 9 and 18 months after ESD. During the observation period, 3 patients died of esophageal carcinoma. The 5-year cause-specific survival rates of groups A and B were 100% and 85%, respectively.

LIMITATIONS:

This was a retrospective study with a relatively short follow-up and a small number of patients from a single institution.

CONCLUSION:

This long-term follow-up study revealed that ESD is a potentially curative treatment for superficial ESCNs. There were substantial risks of perforation and stricture that were successfully managed endoscopically.

PMID:
19577748
DOI:
10.1016/j.gie.2009.04.044
[Indexed for MEDLINE]

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