{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T14:09:37Z","timestamp":1790172577006,"version":"4.1.0"},"reference-count":8,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T00:00:00Z","timestamp":1756080000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T00:00:00Z","timestamp":1756080000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["DEN Open"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Self\u2010expanding metallic stents (SEMSs) are an established palliative option for malignant colonic obstruction, including in cases with proximal lesions. However, SEMS placement across the ileocecal valve (ICV) can be technically challenging because of the anatomical curvature and luminal stenosis. Herein, we report a successful case of colonic stenting for a malignant ileocecal obstruction using an ultra\u2010thin scope and a single\u2010balloon overtube. A 72\u2010year\u2010old man with alcoholic cirrhosis and multiple liver metastases presented with malignant ileocecal obstruction. Given his inoperability, palliative SEMS placement was attempted. Colonoscopy showed a circumferential tumor in the ileocecum, with no passage of contrast medium into the ileum. Guidewire insertion across the ICV failed because of the inability to visualize the direction of the ileal lumen. To overcome this, we used a rescue technique with an ultra\u2010thin scope and a single\u2010balloon overtube. After placing the overtube in the ascending colon, the ultra\u2010thin scope was advanced through it to explore the stenotic lumen directly. This allowed safe insertion of the guidewire into the proximal lumen of the stenosis. The ultra\u2010thin scope was withdrawn, and a standard scope was inserted over the guidewire. Finally, a SEMS was deployed across the ICV through the scope. The patient's obstructive symptoms were resolved without complications, and he was discharged 7 days later. This case demonstrates that in cases of malignant ileocecal obstruction where SEMS placement using conventional methods is difficult, a rescue technique using an ultra\u2010thin scope with a single\u2010balloon overtube may be a viable alternative.<\/jats:p>","DOI":"10.1002\/deo2.70190","type":"journal-article","created":{"date-parts":[[2025,8,26]],"date-time":"2025-08-26T03:26:42Z","timestamp":1756178802000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Successful Colonic Stenting Across the Ileocecal Valve With Severe Malignant Stenosis Using Ultra\u2010thin Scope and Single\u2010balloon Overtube"],"prefix":"10.1002","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7529-9375","authenticated-orcid":false,"given":"Takato","family":"Maeda","sequence":"first","affiliation":[{"name":"Department of Gastroenterology Aomori Prefectural Central Hospital  Aomori 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Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Numao","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology Aomori Prefectural Central Hospital  Aomori Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masaki","family":"Munakata","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology Aomori Prefectural Central Hospital  Aomori Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hirotake","family":"Sakuraba","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology Hematology and Clinical Immunology Hirosaki University Graduate School of Medicine  Aomori Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,8,25]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1055\/a-1140-3017"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.5946\/ce.2024.120"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/den.12450"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0043-113560"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.3390\/jcm14030826"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1055\/a-1934-9704"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00464-023-10233-4"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.vgie.2023.07.017"}],"container-title":["DEN 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