This review found that there is a paucity of studies that have examined the veins used for PICC insertion” Sharp et al (2016).
Background: The risk of venous thromboembolism (VTE) may be reduced if a vein of appropriate diameter is used for peripherally inserted central catheter (PICC) insertion. However, clinicians may have predilections to cannulate certain vein types and use particular insertion sites (eg, right or left arm) and therefore do not necessarily assess all veins available to determine the most optimal vessel to introduce a catheter. It is important that clinicians have an understanding of the diameter of veins used for PICC insertion and the effect of patient factors such as hand dominance on vein size to determine whether their clinical practice is appropriate.
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Methods: A scoping review of published literature was performed to determine existing knowledge regarding the diameters of veins used for PICC insertion and the influence of patient factors such as hand dominance and laterality (left or right arm) on vein size.
Results: There was limited published research about the diameters of the basilic, brachial, and cephalic veins at the midupper arm, with only 6 studies identified. Three of the 6 selected articles focused on vein diameter measurement to inform arteriovenous fistula development. Only 1 study included participants undergoing PICC insertion. Scant research examined the effect of laterality on vein diameter and 1 study was identified that reported the influence of hand dominance or vein type on the diameter of veins used for PICC insertion.
Conclusions: This review found that there is a paucity of studies that have examined the veins used for PICC insertion. Nevertheless, it appears that the basilic vein has the largest diameter (with smaller brachial and cephalic veins), although this is not always the case. Laterality and hand dominance does not seem to influence vein diameter. Further research about the vasculature used for PICC insertion is needed to inform clinical practice.
Sharp, R., Grech, C., Fielder, A., Mikocka-Walus, A. and Esterman, A. (2016) Vein Diameter for Peripherally Inserted Catheter Insertion: A Scoping Review. The Journal of the Association for Vascular Access. 21(3), p.166-175.
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