[The major nerve trunks are not the primary action site of intravenous regional anesthesia].
In a patient suffering from a deep penetrating wound of the left forearm and radial nerve injury, the administration of intravenous regional anesthesia (IVRA) was followed by prompt analgesia of the whole arm while intense pain could still be elicited by stimulating radial nerve stump. Complete radial nerve block was present 10 min later confirming that initial blockade of nerve terminals substantially contributes to IVRA and suggesting that a 10 min delay is indicated for optimal analgesia after IVRA whenever a major nerve injury is suspected.
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Servizio di Anestesia e Rianimazione, Ospedale S. Giovanni Evangelista, USL RM 26 Tivoli, Roma.
Cristina
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GR
D000698:Analgesia; D000771:Anesthesia, Intravenous; D006801:Humans; D008297:Male; D008875:Middle Aged; D009407:Nerve Block; D011826:Radial Nerve / Q000187:drug effects*
I tronchi nervosi di maggior calibro non costituiscono il sito d'azione primario dell'anestesia regionale intravenosa.