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Depth of resection using two different endoscopic mucosal resection techniques.

J A Abrams1, P Fedi, E Vakiani

  • 1Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA.

Endoscopy
|May 22, 2008
PubMed
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Two endoscopic mucosal resection techniques for Barrett's esophagus yield similar specimen depths for high-grade dysplasia and intramucosal carcinoma, ensuring accurate pathological staging.

Area of Science:

  • Gastroenterology
  • Endoscopy
  • Surgical Pathology

Background:

  • Barrett's esophagus poses a risk for high-grade dysplasia (HGD) and intramucosal carcinoma (IMCA).
  • Endoscopic mucosal resection (EMR) is a key treatment for HGD and IMCA in Barrett's esophagus.
  • Two cap-assisted EMR techniques, "inject, suck, and cut" and "band and snare," are commonly used.

Purpose of the Study:

  • To compare the depth of resection achieved by two cap-assisted EMR techniques.
  • To evaluate the adequacy of histological specimens for staging neoplastic lesions in Barrett's esophagus.

Main Methods:

  • Retrospective analysis of 40 EMR specimens (20 per technique) from patients with HGD or IMCA in Barrett's esophagus.
  • Pathological assessment of specimen depth, presence of submucosa, and muscularis propria at the deepest margin.

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  • Collection of clinical outcome and stricture formation data.

    • Main Results:

    • Mean specimen depth was comparable between the "inject, suck, and cut" (0.51 cm) and "band and snare" (0.50 cm) techniques (P = 0.76).
    • All specimens included sufficient submucosa for accurate staging.
    • Muscularis propria was identified in 65% of "band and snare" and 50% of "inject, suck, and cut" specimens (P = 0.52).

    Conclusions:

    • Both "inject, suck, and cut" and "band and snare" EMR techniques provide adequate histological specimen depth for Barrett's esophagus with HGD or IMCA.
    • Both techniques ensure accurate pathological staging of neoplastic lesions.