{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T19:09:36Z","timestamp":1793128176552,"version":"4.5.0"},"reference-count":23,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2021,5,10]],"date-time":"2021-05-10T00:00:00Z","timestamp":1620604800000},"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":[[2022,11]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>High-flow arteriovenous fistulae (HF-AVF) may lead to adverse cardiac remodeling in hemodialysis patients. We have investigated whether a novel external stent is safe and effective in reducing and stabilizing flow rates during a 1-year follow-up after HF-AVF reconstruction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>All patients with HF-AVF (access flow rate\u2009\u2a7e\u20091500\u2009ml\/min), who underwent HF-AVF reconstruction with external stenting in two centers between June 2018 and May 2020, were included in this retrospective analysis. During HF-AVF reconstruction, the dilated vein segment was resected, underwent volume reduction, and was externally stabilized using a braided cobalt-chromium external stent. AVF flow rates were assessed preoperatively, intraoperatively, and at follow up visits using duplex ultrasound.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Forty-three HF-AVFs in 42 patients were reconstructed and supported with an external stent (mean age 49\u2009years, range 20\u201386\u2009years; 74% men). Fifty-one percent were forearm AVFs, 49% were upper arm. The mean preoperative flow rate was 2622\u2009\u00b1\u2009893\u2009ml\/min (range: 1500\u20136000\u2009ml\/min) and was decreased to 710\u2009\u00b1\u2009221\u2009ml\/min (range: 300\u20131300\u2009ml\/min) intra-operatively after HF-AVF reconstruction. At 6 and 12-months follow-up, the mean flow rates were 1132\u2009\u00b1\u2009320\u2009ml\/min (range: 470\u20131700\u2009ml\/min) and 1453\u2009\u00b1\u2009888\u2009ml\/min (range: 300\u20133800\u2009ml\/min), respectively. Recurrence of high flow (&gt;1500\u2009ml\/min) occurred in 16% and 25% of the patients at 6 and 12\u2009months and primary patency rates were 86% and 70%, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>This early experience with novel external stenting for HF-AVF reconstruction demonstrates that it is a safe and effective method for reducing and stabilizing flow rates up to 1-year post procedure. Additional studies are required to evaluate the durability of this procedure over the longer term and assess its effect on cardiac remodeling.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/11297298211015508","type":"journal-article","created":{"date-parts":[[2021,5,11]],"date-time":"2021-05-11T13:47:09Z","timestamp":1620740829000},"page":"864-870","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Novel external stenting for reconstruction of high flow arteriovenous fistula"],"prefix":"10.1177","volume":"23","author":[{"given":"Vladimir","family":"Matoussevitch","sequence":"first","affiliation":[{"name":"Vascular Access Unit, Department of Vascular and Endovascular Surgery, University Hospital of Cologne, Cologne, Nordrhein-Westfalen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Egan","family":"Kalmykov","sequence":"additional","affiliation":[{"name":"Vascular Access Unit, Department of Vascular and Endovascular Surgery, University Hospital of Cologne, Cologne, Nordrhein-Westfalen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8352-0954","authenticated-orcid":false,"given":"Robert","family":"Shahverdyan","sequence":"additional","affiliation":[{"name":"Vascular Access Center, Asklepios Clinic Barmbek, Hamburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,5,10]]},"reference":[{"key":"bibr1-11297298211015508","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.00730112"},{"key":"bibr2-11297298211015508","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.02950707"},{"key":"bibr3-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1093\/ndt\/gfm021"},{"key":"bibr4-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1053\/j.ajkd.2006.04.040"},{"key":"bibr5-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehx045"},{"key":"bibr6-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1159\/000322695"},{"key":"bibr7-11297298211015508","doi-asserted-by":"publisher","DOI":"10.5301\/jva.5000196"},{"key":"bibr8-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1111\/j.1525-139X.2006.00185.x"},{"key":"bibr9-11297298211015508","doi-asserted-by":"publisher","DOI":"10.15761\/CVS.1000116"},{"key":"bibr10-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1016\/j.ehj.2018.10.007"},{"key":"bibr11-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1093\/ndt\/gfm549"},{"key":"bibr12-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2014.09.034"},{"key":"bibr13-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1111\/sdi.12366"},{"key":"bibr14-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1111\/j.1525-139X.2007.00244.x"},{"key":"bibr15-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1067\/mva.2002.122025"},{"key":"bibr16-11297298211015508","doi-asserted-by":"publisher","DOI":"10.5301\/jva.5000357"},{"key":"bibr17-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejvs.2018.03.014"},{"key":"bibr18-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1038\/ki.2009.461"},{"key":"bibr19-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2005.11.047"},{"key":"bibr20-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2015.01.060"},{"key":"bibr21-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1093\/ehjci\/jev310"},{"key":"bibr22-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2015.04.061"},{"key":"bibr23-11297298211015508","doi-asserted-by":"publisher","DOI":"10.1186\/s13019-018-0803-9"}],"container-title":["The 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