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Opening Injection Pressure Is Higher in Intraneural Compared With Perineural Injections During Simulated Nerve Blocks of the Lower Limb in Fresh Human Cadavers by Kris Vermeylen; Marlies Hermans; Filiep Soetens; Evie Vereecke; Thorsten Steinfeldt; Gerbrand Groen; Admir Hadzic; Marc Van de Velde is a Medicine article available to read on EtoBox.
What is Opening Injection Pressure Is Higher in Intraneural Compared With Perineural Injections During Simulated Nerve Blocks of the Lower Limb in Fresh Human Cadavers about?
## Background and objectives: Needle-induced nerve trauma and intraneural injection can lead to neurologic injury during peripheral nerve blocks. in this study, we assessed the utility of opening injection pressure (oip), time to oip, and rate of rise to oip in detecting needle-nerve contact and intraneural injection. ## Methods: Five common ultrasound-guided blocks of the femoral, saphenous, subgluteal sciatic, tibial, and common peroneal nerves were simulated in 10 fresh cadavers. opening injection pressure was defined as peak psi in the 60-second interval during which the injection is initiated. pressure-time curves were constructed separately for intraneural and perineural injections for each of the 5 nerves studied. ## Results: Opening injection pressure was higher for intraneural than for perineural injections (p < 0.001), ranging from 21.5 psi (1111.9 mm hg) to 25.8 psi (1334.2 mm hg) for intraneural injections and from 3.8 psi (196.5 mm hg) to 6.1 psi (315.5 mm hg) for perineural injections. time to oip tended to be shorter for intraneural than for perineural injections, particularly for the subgluteal sciatic, tibial, and common peroneal nerves. curves of intraneural injec
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- Author
- Kris Vermeylen; Marlies Hermans; Filiep Soetens; Evie Vereecke; Thorsten Steinfeldt; Gerbrand Groen; Admir Hadzic; Marc Van de Velde
- Publisher
- BMJ
- Published
- 2017
- Language
- EN
- Field
- Medicine (Health Sciences)