Underwater endoscopic mucosal resection for complete R0 removal of an adenoma extending deep into a colonic diverticulum

Shiotsuki, Kazuo; Imai, Kenichiro; Ito, Sayo; Kishida, Yoshihiro; Ono, Hiroyuki

doi:10.1055/a-1134-4668

Cited by 4 publications

(6 citation statements)

References 5 publications

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“…39 Three case reports indicated complete removal of adenoma extending into a colonic diverticulum or surrounded by a diverticulum using UEMR. [40][41][42] Appendiceal orifice and diverticulum are similar conditions involving deep depression of the colonic wall, and these case reports may indicate the efficacy of a "floating" effect in UEMR.…”

Section: Uemr In Case Reports Under Special Situationsmentioning

confidence: 76%

“…Furthermore, a prospective study on clinical outcomes of UEMR for lesions involving an appendiceal orifice found that UEMR was successful in 89% (24/27) with the post‐polypectomy syndrome in 7% and local recurrence rate of 10% 39 . Three case reports indicated complete removal of adenoma extending into a colonic diverticulum or surrounded by a diverticulum using UEMR 40–42 . Appendiceal orifice and diverticulum are similar conditions involving deep depression of the colonic wall, and these case reports may indicate the efficacy of a “floating” effect in UEMR.…”

Section: Uemr In Case Reports Under Special Situationsmentioning

confidence: 99%

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Underwater endoscopic mucosal resection for colorectal lesions: Can it be an “Underwater” revolution?

2022

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Underwater endoscopic mucosal resection (UEMR) is a newly developed technique for the removal of colorectal, duodenal, esophageal, gastric, ampullary, and small intestinal lesions. We performed a PubMed literature search for articles reporting UEMR outcomes for colorectal polyps. Four randomized controlled trials, nine non‐randomized prospective trials, 16 retrospective studies, and 27 case reports were selected for assessment of the efficacy and safety of UEMR. We summarized the therapeutic outcomes of UEMR in each category according to the lesion characteristics [small size (<10 mm), intermediate size (10–19 mm), large size (≥20 mm), recurrent lesion, and rectal neuroendocrine tumor], and calculated the incidence of adverse events among the included articles. As the treatment outcomes for small polyps appeared similar between UEMR and conventional endoscopic mucosal resection (CEMR), UEMR can be a standard procedure for small colorectal polyps suspicious for high‐grade dysplasia to avoid incomplete removal of occult invasive cancer by cold snare polypectomy. As UEMR showed satisfactory outcomes for intermediate‐size lesions and recurrent lesions after endoscopic resection, UEMR can be a standard procedure for these lesions. Regarding large lesions and rectal neuroendocrine tumors, comparisons of UEMR with current standard methods for them were lacking, and further investigations are warranted. Adverse events appeared comparable or less frequent for UEMR compared with CEMR but still existed. Therefore, careful implementation of this new technique in clinical practice is important for its widespread use.

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Section: Uemr In Case Reports Under Special Situationsmentioning

confidence: 76%

Section: Uemr In Case Reports Under Special Situationsmentioning

confidence: 99%

Underwater endoscopic mucosal resection for colorectal lesions: Can it be an “Underwater” revolution?

2022

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“…5,6 The first case of UEMR for a colon adenoma extending into a diverticulum was reported in 2020. 7 We report successful UEMR of colorectal adenomas extending into a diverticulum. safely resected it in an en bloc fashion ( Fig.…”

Section: Introductionmentioning

confidence: 93%

“…Binmoeller et al first reported underwater endoscopic mucosal resection without submucosal injection (UEMR), an innovative technique enabling en bloc resection of superficial colon lesions [ 5 , 6 ]. The first case of UEMR for a colon adenoma extending into a diverticulum was reported in 2020 [ 7 ]. We report successful UEMR of colorectal adenomas extending into a diverticulum.…”

Section: Introductionmentioning

confidence: 99%

Underwater Endoscopic Mucosal Resection without Submucosal Injection Facilitates En bloc Resection of Colon Adenomas Extending into a Diverticulum

et al. 2021

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Patient 1 was a 65-year-old man with a positive fecal immunochemical test who underwent colonoscopy showing a flat lesion extending into a diverticulum in the cecum. The lesion was 1.5 cm in diameter and suspicious for an adenoma. After water immersion, the mucosa in the diverticulum was everted through the orifice and the diverticulum-side demarcation of the lesion was easily identified. We snared the entire lesion and

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“…Furthermore, submucosal scarring after previously attempted endoscopic removal significantly reduces the efficacy of submucosal injection. Underwater endoscopic mucosal resection (UEMR) can be effective for poorly visualized polyps, such as orifice- or diverticular-related polyps, or for scarred residual polyps 2 3 4 . Nevertheless, suboptimal visualization of the proximal margins in the deflated lumen hampers effective snaring.…”

Section: Figmentioning

confidence: 99%

Tip-in underwater endoscopic mucosal resection for a residual lower rectal lesion extending to the dentate line

Okumura,

Imai,

Hotta

et al. 2023

Endoscopy

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Underwater endoscopic mucosal resection for complete R0 removal of an adenoma extending deep into a colonic diverticulum

Cited by 4 publications

References 5 publications

Underwater endoscopic mucosal resection for colorectal lesions: Can it be an “Underwater” revolution?

Underwater endoscopic mucosal resection for colorectal lesions: Can it be an “Underwater” revolution?

Underwater Endoscopic Mucosal Resection without Submucosal Injection Facilitates En bloc Resection of Colon Adenomas Extending into a Diverticulum

Tip-in underwater endoscopic mucosal resection for a residual lower rectal lesion extending to the dentate line

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