Dartnell J, Sekaran P, Ellis H
Department of Anatomy, Guy's, King's and St. Thomas's School of Biomedical Sciences, University of London, London, United Kingdom.
Clin Anat. 2007 Nov;20(8):929-32. doi: 10.1002/ca.20546.
The superficial ulnar artery (SUA) is an anatomical variation of the upper limb vasculature with a prevalence of 0.7-9.4% in the population. The importance of this variant is that it may be cannulated inadvertently by an unsuspecting physician, leading to possible ischemia of the hand. With the growing use of radial forearm flaps, the surgeon needs to be aware of its presence during surgery and be able to adapt the procedure accordingly. The aims of the study focus on the incidence and calibre of the SUA. Ninety-five cadaveric limbs were dissected and the calibre of the different arteries measured. Four SUAs (4.2%) were found, all in male cadavers. Two of these were from the same cadaver. Measurements of the calibre of the vessels showed that the SUA was smaller than the ulnar artery. Of the limbs dissected, 4.2% had an SUA, which is a similar prevalence to other studies in Western Europe. It is most commonly found in males, unilaterally and in the right upper limb. It is extremely rare to experience consequences from intra-arterial cannulation and the SUA may have more of a beneficial role in reconstructive fasciocutaneous forearm flaps.
尺侧浅动脉（SUA）是上肢血管系统的一种解剖变异，在人群中的发生率为0.7%-9.4%。这种变异的重要性在于，不知情的医生可能会无意中对其进行插管，导致手部可能出现缺血。随着桡侧前臂皮瓣使用的增加，外科医生在手术过程中需要意识到它的存在，并能够相应地调整手术操作。该研究的目的集中在SUA的发生率和管径。解剖了95具尸体的上肢，并测量了不同动脉的管径。发现了4条SUA（4.2%），均在男性尸体中。其中两条来自同一具尸体。血管管径测量显示，SUA比尺动脉小。在解剖的上肢中，4.2%有SUA，这一发生率与西欧的其他研究相似。它最常见于男性，单侧且位于右上肢。动脉内插管极少产生后果，并且SUA在重建性前臂筋膜皮瓣中可能具有更多有益作用。
