{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T15:52:06Z","timestamp":1769183526915,"version":"3.49.0"},"reference-count":24,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2022,2,22]],"date-time":"2022-02-22T00:00:00Z","timestamp":1645488000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Seminars in Dialysis"],"published-print":{"date-parts":[[2022,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Failure to mature of native arteriovenous fistula (AVF) assessed by image is not well documented.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The aim of this study is to evaluate AVF maturation by Doppler ultrasound within 6\u00a0weeks after surgery and check for new hemodynamic variables as prognostic factors.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 155 native AVFs were created in 3\u00a0years. Median age of patients was 71\u2009years (60;79), with male gender predominance of 59.4% (<jats:italic>n<\/jats:italic>\u2009=\u200992). Diabetes was present in 60.6% (<jats:italic>n<\/jats:italic>\u2009=\u200994). AVF was created in distal forearm in 49.7% (<jats:italic>n<\/jats:italic>\u2009=\u200977). Un\u2010assisted and overall maturation was of 67.1% (<jats:italic>n<\/jats:italic>\u2009=\u2009104) and 83.9% (<jats:italic>n<\/jats:italic>\u2009=\u2009130), respectively. Failure to mature occurred in 21.3% (<jats:italic>n<\/jats:italic>\u2009=\u200933) and primary failure in 9.7% (<jats:italic>n<\/jats:italic>\u2009=\u200915). In univariate analysis, preoperative variables such as diameter of artery (3.5 vs. 2.2\u00a0mm; p\u2009&lt;\u20090.001) and pulsatility index (7.9 vs. 6.6; p\u2009=\u20090.055) were associated with failure to mature of AVF. Postoperative variables as Qa (994 vs. 401\u2009mL\/min; <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), resistance index (0.52 vs. 0.63; p\u2009&lt;\u20090.001), pulsatility index (0.74 vs. 1.21; p\u2009&lt;\u20090.001), and acceleration time (0.17 vs. 0.12; p\u2009&lt;\u20090.001) also predicted an unfunctional AVF. Spearman correlation coefficient (<jats:italic>r<\/jats:italic>) was good for resistance index (\u22120.628) and pulsatility index (\u22120.707) in comparison with blood flow (Qa). In multivariate analysis, postoperative pulsatility index was an independent predictor of AVF dysfunction (OR: 16.5; p\u2009&lt;\u20090.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Failure to mature was of 21.3%. Pulsatility index could be an important tool as new hemodynamic variable to predict failure to mature of native AVF.<\/jats:p><\/jats:sec>","DOI":"10.1111\/sdi.13062","type":"journal-article","created":{"date-parts":[[2022,2,23]],"date-time":"2022-02-23T00:28:51Z","timestamp":1645576131000},"page":"358-362","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["New hemodynamic variables as predictors of arteriovenous fistula maturation"],"prefix":"10.1111","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5974-4299","authenticated-orcid":false,"given":"Rui","family":"Abreu","sequence":"first","affiliation":[{"name":"Nephrology Department Centro Hospitalar T\u00e2mega e Sousa  Penafiel Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,2,22]]},"reference":[{"issue":"1","key":"e_1_2_6_2_1","first-page":"1","article-title":"por el Grupo Espa\u00f1ol Multidisciplinar del Acceso Vascular (GEMAV). Clinical guidelines on vascular access for haemodialysis","volume":"37","author":"Ibeas J","year":"2017","journal-title":"Nefrologia"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40477-014-0113-6"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/sj.ki.5002157"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/ndt\/gfm021"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1681\/ASN.2017111225"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1525\u2010139X.2005.18114.x"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1177\/112972980800900101"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2251011367"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen\u20102019\u2010031210"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1525-139X.2005.18320.x"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1093\/ndt\/13.1.125"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.00850805"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejvs.2018.02.001"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.299.18.2164"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2015.07.086"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.23736\/S0392\u20109590.18.03927\u20105"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000012994"},{"key":"e_1_2_6_19_1","first-page":"438","article-title":"Risk factors predicting successful function and use of autogenous arteriovenous fistulae for henodialysis","volume":"61","author":"Usta E","year":"2013","journal-title":"Thorac Cardiovasc Surg"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.avsg.2016.02.018"},{"key":"e_1_2_6_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2019.01.088"},{"key":"e_1_2_6_22_1","doi-asserted-by":"publisher","DOI":"10.15557\/JoU.2018.0049"},{"key":"e_1_2_6_23_1","doi-asserted-by":"publisher","DOI":"10.4103\/2045\u20108932.83446"},{"key":"e_1_2_6_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2015.01.036"},{"key":"e_1_2_6_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.crad.2016.02.025"}],"container-title":["Seminars in Dialysis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/sdi.13062","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/sdi.13062","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/sdi.13062","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,24]],"date-time":"2023-08-24T03:37:13Z","timestamp":1692848233000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/sdi.13062"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,2,22]]},"references-count":24,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2022,7]]}},"alternative-id":["10.1111\/sdi.13062"],"URL":"https:\/\/doi.org\/10.1111\/sdi.13062","archive":["Portico"],"relation":{},"ISSN":["0894-0959","1525-139X"],"issn-type":[{"value":"0894-0959","type":"print"},{"value":"1525-139X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,2,22]]},"assertion":[{"value":"2021-07-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-02-07","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-02-22","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}