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. 2022 Nov-Dec;72(6):832-833.
doi: 10.1016/j.bjane.2022.05.005. Epub 2022 Jun 1.

Improving the success rate of intravenous cannulation

Anthony M H Ho  1 , Gregory Klar  1 , Glenio Bitencourt Mizubuti  2
Affiliations

Improving the success rate of intravenous cannulation

Anthony M H Ho et al. Braz J Anesthesiol. 2022 Nov-Dec.
No abstract available

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Conflict of interest statement

Conflicts of interest The authors declare no conflicts of interest.

Figures

Figure 1:
Figure 1
(a) The advancing tip of the needle of the IV cannula can go through the opposite (i.e., posterior) wall of the vein if the incident angle is not adjusted to nearly zero after the initial blood flashback. (b) The advancing tip of the needle is parallel to the vein, avoiding double-puncture, but the safety margin is small as any unsuspected downward tilt will lead to double-puncture. (c) A slight upward tilt of the needle provides the least chance of an inadvertent downward bias, and since the receding side of the bevel does not penetrate, it is the safest, even if the vein is slightly smaller than the IV needle-cannula set.
Figure 2:
Figure 2
The IV needle-cannula shield (a) can be used to bend the set by a few degrees (b) while maintaining sterility.
See this image and copyright information in PMC

References

    1. Bensghir M., Chkoura K., Mounir K., et al. Peripheral intravenous access in the operating room: characteristics and predictors of difficulty. Ann Fr Anesth Reanim. 2012;31:600–604. - PubMed
    1. Angles E., Robin F., Moal B., et al. Pre-operative peripheral intravenous cannula insertion failure at the first attempt in adults. Development of the VENSCORE predictive scale and identification of risk factors. J Clin Anesth. 2021;75 - PubMed
    1. Solomowitz B.H. Intravenous cannulation: a different approach. Anesth Prog. 1993;40:20–22. - PMC - PubMed

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