{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,2]],"date-time":"2026-01-02T17:19:17Z","timestamp":1767374357631,"version":"3.37.3"},"reference-count":27,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2019,5,1]],"date-time":"2019-05-01T00:00:00Z","timestamp":1556668800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"NIH Intramural Research Program"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Surgical Oncology"],"published-print":{"date-parts":[[2019,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The optimal approach to biliary drainage for patients with supra\u2010ampullary cholangiocarcinoma remains undetermined. Violation of sphincter of Oddi results in bacterial colonization of bile ducts and may increase postdrainage infectious complications. We sought to determine if rates of cholangitis are affected by the type of drainage procedure.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We examined the Surveillance, Epidemiology, and End Results\u2010Medicare linked database from 1991 to 2013 for cholangiocarcinoma. Biliary drainage procedures were categorized as\u00a0sphincter of Oddi violating (SOV) or sphincter of Oddi preserving (SOP). Patients were stratified by resection.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 1914 patients were included in the final analysis. A total of 1264 patients did not undergo a postdrainage resection (SOP 83, SOV 1181) while 650 did undergo a postdrainage resection (SOP 26, SOV 624). For those patients not undergoing a postdrainage resection, the rate of cholangitis 90 days after an SOP procedure was 19% compared with 34% in the SOV cohort (<jats:italic>P<\/jats:italic>\u2009=\u20090.007). For those patients undergoing a postdrainage resection, the rate of cholangitis 90 days after an SOP procedure was less than 42.3% compared with 30% in the SOV cohort (<jats:italic>P<\/jats:italic>\u2009=\u20090.66).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>For patients with supra\u2010ampullary cholangiocarcinoma that did not undergo resection, biliary drainage procedures that violated the sphincter of Oddi were associated with increased rates of cholangitis.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jso.25485","type":"journal-article","created":{"date-parts":[[2019,5,2]],"date-time":"2019-05-02T05:12:45Z","timestamp":1556773965000},"page":"249-255","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Postbiliary drainage rates of cholangitis are impacted by procedural technique for patients with supra\u2010ampullary cholangiocarcinoma: A SEER\u2010Medicare analysis"],"prefix":"10.1002","volume":"120","author":[{"given":"Christine M.","family":"Kariya","sequence":"first","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7686-6076","authenticated-orcid":false,"given":"Michael M.","family":"Wach","sequence":"additional","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samantha M.","family":"Ruff","sequence":"additional","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reed I.","family":"Ayabe","sequence":"additional","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Winifred M.","family":"Lo","sequence":"additional","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Madeline B.","family":"Torres","sequence":"additional","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jessica L.","family":"Petrick","sequence":"additional","affiliation":[{"name":"Metabolic Epidemiology Branch National Cancer Institute Rockville Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Timothy S.","family":"McNeel","sequence":"additional","affiliation":[{"name":"Information Management Services, Inc Rockville Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeremy L.","family":"Davis","sequence":"additional","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katherine A.","family":"McGlynn","sequence":"additional","affiliation":[{"name":"Metabolic Epidemiology Branch National Cancer Institute Rockville Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonathan M.","family":"Hernandez","sequence":"additional","affiliation":[{"name":"Surgical Oncology Program National Cancer Institute Bethesda Maryland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,5]]},"reference":[{"key":"e_1_2_8_1_2_1","doi-asserted-by":"publisher","DOI":"10.1634\/theoncologist.2015-0446"},{"key":"e_1_2_8_1_3_1","doi-asserted-by":"publisher","DOI":"10.1097\/00000658-199610000-00005"},{"key":"e_1_2_8_1_4_1","doi-asserted-by":"publisher","DOI":"10.6004\/jnccn.2017.7056"},{"key":"e_1_2_8_1_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11605-009-1009-1"},{"key":"e_1_2_8_1_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00535-010-0298-1"},{"key":"e_1_2_8_1_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2468-1253(18)30234-6"},{"key":"e_1_2_8_1_8_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0186643"},{"key":"e_1_2_8_1_9_1","unstructured":"National Cancer Institute Division of Cancer Control and Population Sciences. 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