{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T20:02:07Z","timestamp":1789070527093,"version":"build-2803163510"},"reference-count":12,"publisher":"FapUNIFESP (SciELO)","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. vasc. bras."],"abstract":"<jats:p>Abstract  Background The ulnar artery normally follows a deep and medial course beneath the flexor digitorum profundus muscle. Anatomical variants in the upper limb vasculature are relatively common and may result from disruptions in angiogenesis or vasculogenesis. One example of such anatomic variants is presence of a superficial ulnar artery, which follows an atypical path superficial to the flexor digitorum profundus muscle. This variant is clinically important and can be diagnosed using vascular Doppler ultrasound.  Objectives To determine the incidence of the superficial ulnar artery using vascular Doppler ultrasound and to compare these findings with data from cadaveric studies.  Methods A cross-sectional study was conducted, examining 314 upper limbs from 157 volunteers using vascular Doppler ultrasound.  Results The superficial ulnar artery was detected in 2.5% of the participants. This incidence aligns with previous cadaveric studies, in which reported prevalence rates range from 0.7% to 9.4%. Being aware of this variation is of fundamental importance in procedures such as peripheral venipuncture, vein cannulation, forearm flaps, and emergency surgeries of the upper limb.  Conclusions The superficial ulnar artery is a relatively frequent anatomical variant of the upper limb. The 2.5% incidence observed in this study is consistent with previously published cadaveric studies.<\/jats:p>","DOI":"10.1590\/1677-5449.202500642","type":"journal-article","created":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T11:05:28Z","timestamp":1774263928000},"source":"Crossref","is-referenced-by-count":1,"title":["Superficial ulnar artery identification with vascular Doppler ultrasound: a cross-sectional study"],"prefix":"10.1590","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9552-7822","authenticated-orcid":false,"given":"Mariana Jord\u00e3o","family":"Fran\u00e7a","sequence":"first","affiliation":[{"name":"Universidade Positivo,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-2682-2763","authenticated-orcid":false,"given":"Guilherme Francisco","family":"C\u00e9","sequence":"additional","affiliation":[{"name":"Universidade Positivo,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1708-0038","authenticated-orcid":false,"given":"Solena Ziemer Kusma","family":"Fidalski","sequence":"additional","affiliation":[{"name":"Universidade Federal do Paran\u00e1,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1733-4299","authenticated-orcid":false,"given":"Graciliano Jos\u00e9","family":"Fran\u00e7a","sequence":"additional","affiliation":[{"name":"Universidade Positivo,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2026]]},"reference":[{"key":"ref1","series-title":"Clinically oriented anatomy.","author":"Moore KL","year":"2017","edition":"8th"},{"key":"ref2","series-title":"Developmental anatomy.","first-page":"375","author":"Arey LB","year":"1957","edition":"6th"},{"issue":"5","key":"ref3","doi-asserted-by":"crossref","first-page":"447","DOI":"10.1002\/hed.20367","article-title":"Superficial ulnar artery: curse or blessing in harvesting fasciocutaneous forearm flaps","volume":"28","author":"Sieg P","year":"2006","journal-title":"Head Neck"},{"issue":"3","key":"ref4","first-page":"289","article-title":"The superficial ulnar artery with reference to accidental intra-arterial injection","volume":"61","author":"Hazlett JW","year":"1949","journal-title":"Can Med Assoc J"},{"issue":"8","key":"ref5","doi-asserted-by":"crossref","first-page":"929","DOI":"10.1002\/ca.20546","article-title":"The superficial ulnar artery: incidence and calibre in 95 cadaveric specimens","volume":"20","author":"Dartnell J","year":"2007","journal-title":"Clin Anat"},{"issue":"4","key":"ref6","doi-asserted-by":"crossref","first-page":"284","DOI":"10.1002\/hed.2880170403","article-title":"Anomalies of forearm vascular anatomy encountered during elevation of the radial forearm flap","volume":"17","author":"Funk GF","year":"1995","journal-title":"Head Neck"},{"issue":"4","key":"ref7","first-page":"573","article-title":"High origin of ulnar artery in South Indian male cadaver: a case report","volume":"49","author":"Bhat KM","year":"2008","journal-title":"Rom J Morphol Embryol"},{"issue":"1","key":"ref8","doi-asserted-by":"crossref","first-page":"128","DOI":"10.1186\/1752-1947-1-128","article-title":"A rare variant of the superficial ulnar artery, and its clinical implications: a case report","volume":"1","author":"Senanayake KJ","year":"2007","journal-title":"J Med Case Rep"},{"issue":"5","key":"ref9","doi-asserted-by":"crossref","first-page":"692","DOI":"10.1093\/bja\/aei548","article-title":"The superficial ulnar artery: a potential hazard in patients with difficult venous access","volume":"94","author":"Chin KJ","year":"2005","journal-title":"Br J Anaesth"},{"key":"ref10","article-title":"Superficial ulnar artery pseudoaneurysm","volume":"22","author":"Fran\u00e7a MJ","year":"2023","journal-title":"J Vasc Bras"},{"issue":"1","key":"ref11","doi-asserted-by":"crossref","first-page":"683","DOI":"10.1186\/s13019-024-03158-z","article-title":"Rare bilateral vascular variations of the upper limb: a cadaveric case study","volume":"19","author":"Smith R","year":"2024","journal-title":"J Cardiothorac Surg"},{"key":"ref12","first-page":"409","article-title":"Arterial patterns in the hand based upon a study of 650 specimens","volume":"113","author":"Coleman SS","year":"1961","journal-title":"Surg Gynecol Obstet"}],"container-title":["Jornal Vascular Brasileiro"],"original-title":["Avalia\u00e7\u00e3o da art\u00e9ria ulnar superficial atrav\u00e9s do ultrassom vascular Doppler: um estudo transversal"],"link":[{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_pdf&pid=S1677-54492026000100601&tlng=en","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T11:05:32Z","timestamp":1774263932000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S1677-54492026000100601&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":12,"alternative-id":["S1677-54492026000100601"],"URL":"https:\/\/doi.org\/10.1590\/1677-5449.202500642","relation":{"has-translation":[{"id-type":"doi","id":"10.1590\/1677-5449.202500641","asserted-by":"subject"}]},"ISSN":["1677-7301","1677-5449"],"issn-type":[{"value":"1677-7301","type":"electronic"},{"value":"1677-5449","type":"print"}],"subject":[],"published":{"date-parts":[[2026]]},"article-number":"e20250064"}}