Abstract
Two cases are presented in which a test dose of bupivacaine 0.75 per cent was injected before institution of an epidural block, as a safeguard against inadvertent intrathecal injection. In each case there was immediate evidence of motor and sensory blockade, which gave warning that the epidural catheter was positioned in the subarachnoid space. The experience of these two cases indicates that bupivacaine 0.75 per cent would be appropriate for use as a test dose in epidural anaesthesia.
RéSUMé
Les auteurs rapportent deux cas où une injection-test de bupivacaine à 0.75 pour cent avant 1’administration de la dose prévue pour une anesthésie peridurale a permis de prévenir une injection sous-arachnoidienne accidentelle. Dans les deux cas, on a observé un bloc moteur et sensitif immédiatement après (’administration de la dose-test, indiquant que le cathéter péridural était de fait dans l’espace sous-arachnoidien. Une concentration de 0.75 pour cent de bupivacaïne est done adéquate comme agent-test dans les cas d’anesthesie peridurale.
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Fargas-Babjak, A., McChesney, J. & Morison, D.H. The efficacy of bupivacaine 0.75 per cent as an epidural test dose. Canad. Anaesth. Soc. J. 27, 500–501 (1980). https://doi.org/10.1007/BF03007052
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DOI: https://doi.org/10.1007/BF03007052