{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T21:09:18Z","timestamp":1788815358920,"version":"build-2803163510"},"reference-count":30,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T00:00:00Z","timestamp":1777852800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Vasc Access"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Radiocephalic arteriovenous fistulas (RCAVFs) are the preferred initial haemodialysis access but are limited by high non-maturation rates, particularly in populations with smaller vessels and high diabetic burden. Preoperative duplex ultrasound (DUS) guides vessel selection but inconsistently predicts postoperative haemodynamic adaptation. We evaluated whether a standardised 2-week postoperative DUS checkpoint could function as a clinical workflow tool for early risk stratification and long-term patency prediction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>In this prospective single-centre study, 57 patients undergoing primary RCAVF creation were followed for up to 10\u2009years. Two-week postoperative DUS assessed vein diameter (VD), brachial artery flow (BAF) and resistive index (RI). Receiver operating characteristic analysis identified thresholds predicting 6-week Kidney-Disease-Outcomes-Quality-Initiative-defined maturation. Kaplan\u2013Meier and Cox regression analyses evaluated long-term primary (PP) and secondary patency (SP).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Six-week maturation occurred in 56%, and functional maturation in 61% of patients initiated on dialysis. Two-week VD demonstrated the strongest discrimination for maturation (AUC 0.81, 95% CI 0.50\u20130.84,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.01), followed by BAF (AUC 0.72, 95% CI 0.65\u20130.90,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.02). RI showed weaker performance (AUC 0.67, 95% CI 0.50\u20130.83,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.05). A VD &lt;5\u2009mm independently predicted long-term PP loss up to 10\u2009years (HR 2.43, 95% CI 1.21\u20134.86,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.01). BAF predicted early maturation but not long-term PP and SP. Early vein and flow expansion kinetics were not independently associated with long-term outcomes.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>A 2-week postoperative DUS checkpoint provides actionable early structural risk stratification after RCAVF creation. Early structural calibre reflects adaptive remodelling and independently predicts long-term PP, supporting integration of this checkpoint into routine practice.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/11297298261443162","type":"journal-article","created":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T11:48:43Z","timestamp":1777895323000},"page":"2204-2211","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Two-week postoperative duplex ultrasound as a clinical workflow tool for risk stratification of radiocephalic arteriovenous fistulas"],"prefix":"10.1177","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4201-0488","authenticated-orcid":false,"given":"Claude Jeffrey","family":"Renaud","sequence":"first","affiliation":[{"name":"Division of Nephrology, Department of General Medicine, Khoo Teck Puat Hospital, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allen Yan Lun","family":"Liu","sequence":"additional","affiliation":[{"name":"Division of Nephrology, Department of General Medicine, Khoo Teck Puat Hospital, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Clarice","family":"Chua Kah Hwei","sequence":"additional","affiliation":[{"name":"Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tan Khin Swee","family":"Elisabeth","sequence":"additional","affiliation":[{"name":"Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdul","family":"Haque bin Abdul Jabbar","sequence":"additional","affiliation":[{"name":"Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lee","family":"Wei Han","sequence":"additional","affiliation":[{"name":"Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chuo Ren","family":"Leong","sequence":"additional","affiliation":[{"name":"Vascular and Endovascular Clinic, Gleneagles Medical Centre, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,5,4]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1523-1755.2002.kid551.x"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.ajkd.2019.12.001"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.15.14650"},{"issue":"5","key":"e_1_3_2_5_2","article-title":"The Society for Vascular Surgery: clinical practice guidelines for the surgical placement and maintenance of arteriovenous hemodialysis access","volume":"48","author":"Sidawy AN","year":"2008","unstructured":"Sidawy AN, Spergel LM, Besarab A, et al. The Society for Vascular Surgery: clinical practice guidelines for the surgical placement and maintenance of arteriovenous hemodialysis access. J Vasc Surg 2008; 48(5): S2\u2013S25.","journal-title":"J Vasc Surg"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejvs.2018.02.001"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1001\/jamasurg.2021.4527"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2015.07.067"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.5301\/jva.5000591"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2020.09.035"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1681\/ASN.2017050559"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1177\/1129729818821620"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.5301\/jva.5000544"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2015.06.134"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1525-139X.2011.00969.x"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.1097\/JTO.0b013e3181ec173d"},{"key":"e_1_3_2_17_2","doi-asserted-by":"publisher","DOI":"10.1177\/11297298241295267"},{"key":"e_1_3_2_18_2","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.04630422"},{"key":"e_1_3_2_19_2","doi-asserted-by":"publisher","DOI":"10.1177\/11297298221091757"},{"key":"e_1_3_2_20_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2015150385"},{"key":"e_1_3_2_21_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10237-022-01586-1"},{"key":"e_1_3_2_22_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.ackd.2009.06.009"},{"key":"e_1_3_2_23_2","doi-asserted-by":"publisher","DOI":"10.3390\/surgeries5040076"},{"key":"e_1_3_2_24_2","doi-asserted-by":"publisher","DOI":"10.4103\/ijves.ijves_26_18"},{"key":"e_1_3_2_25_2","doi-asserted-by":"publisher","DOI":"10.5301\/jva.5000210"},{"key":"e_1_3_2_26_2","doi-asserted-by":"publisher","DOI":"10.1177\/1129729820965064"},{"key":"e_1_3_2_27_2","doi-asserted-by":"publisher","DOI":"10.2147\/VHRM.S205130"},{"key":"e_1_3_2_28_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2022.04.037"},{"key":"e_1_3_2_29_2","doi-asserted-by":"publisher","DOI":"10.1111\/sdi.12333"},{"key":"e_1_3_2_30_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-025-04310-y"},{"key":"e_1_3_2_31_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(02)08594-X"}],"container-title":["The Journal of Vascular Access"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11297298261443162","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/11297298261443162","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11297298261443162","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T20:47:23Z","timestamp":1788814043000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/11297298261443162"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5,4]]},"references-count":30,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2026,9]]}},"alternative-id":["10.1177\/11297298261443162"],"URL":"https:\/\/doi.org\/10.1177\/11297298261443162","relation":{},"ISSN":["1129-7298","1724-6032"],"issn-type":[{"value":"1129-7298","type":"print"},{"value":"1724-6032","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,5,4]]}}}