{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,6]],"date-time":"2026-06-06T10:41:29Z","timestamp":1780742489422,"version":"3.54.1"},"reference-count":74,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T00:00:00Z","timestamp":1761436800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Background: The rising prevalence of gastric, biliary, and pancreatic surgeries has led to an increasing population of patients with surgically altered anatomy (SAA). In this setting, conventional endoscopic retrograde cholangiopancreatography (ERCP) is often limited by anatomical barriers, resulting in high rates of technical failure and complications. While device-assisted enteroscopy (DAE) has expanded therapeutic possibilities, its efficacy remains modest in complex reconstructions. Methods: This review analyzed recent literature from PubMed, Embase, and Scopus up to April 2025, focusing on diagnostic and therapeutic roles of endoscopic ultrasound (EUS) in SAA. Particular attention was given to cases where standard endoscopic, percutaneous, or surgical techniques failed and to studies comparing EUS-guided approaches with alternative modalities. Results: EUS has transitioned from a primarily diagnostic modality to a versatile therapeutic platform in SAA. Techniques such as EUS-guided rendezvous, antegrade drainage, and hepaticogastrostomy have shown technical and clinical success rates exceeding 80\u201390%, often comparable or superior to interventional radiology, while reducing the need for external drains. Innovative procedures, including EUS-directed transgastric ERCP (EDGE) and EUS-directed enteroenteric bypass (EDEE), have transformed the management of Roux-en-Y gastric bypass and bilioenteric anastomoses, providing durable and reusable access for repeated interventions. Despite these advances, EUS-guided interventions remain technically demanding, requiring advanced endoscopic and radiologic skills, specialized devices, and are best performed in tertiary referral centers. Conclusions: EUS has redefined the treatment paradigm of biliopancreatic diseases in patients with SAA, increasingly emerging as the preferred minimally invasive approach when conventional techniques fail. Future developments will focus on dedicated devices, standardized guidelines, and structured training programs to optimize outcomes. Multidisciplinary collaboration and centralization in high-volume centers remain essential to ensure safety, efficacy, and reproducibility.<\/jats:p>","DOI":"10.3390\/diagnostics15212707","type":"journal-article","created":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T07:31:58Z","timestamp":1761550318000},"page":"2707","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Role of the EUS in the Treatment of Biliopancreatic Disease in Patients with Surgically Altered Anatomy"],"prefix":"10.3390","volume":"15","author":[{"given":"Marcello","family":"Cintolo","sequence":"first","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7400-2979","authenticated-orcid":false,"given":"Edoardo","family":"Forti","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giulia","family":"Bonato","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michele","family":"Puricelli","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lorenzo","family":"Dioscoridi","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marianna","family":"Bravo","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Camilla","family":"Gallo","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesco","family":"Pugliese","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8057-9398","authenticated-orcid":false,"given":"Andrea","family":"Palermo","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessia","family":"La Mantia","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6591-612X","authenticated-orcid":false,"given":"Massimiliano","family":"Mutignani","sequence":"additional","affiliation":[{"name":"Endoscopy Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,10,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Mauro, A., Binda, C., Fugazza, A., Vanella, G., Mirante, V.G., Mazza, S., Scalvini, D., Tarantino, I., Fabbri, C., and Anderloni, A. 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