Summary
There appears to be no reason why succinylcholine cannot be used for intubation where deemed advantageous by the anaesthetist, for the rise in intraocular pressure has been dissipated long before the surgeon is ready to open the eye. Where a rise may be undesirable, slow depolarization is indicated. Indeed, where a rise in ocular tension is feared, it would seem that that associated with intubation in the absence of adequate topical anaesthesia or moderately deep general anaesthesia may be of far greater and prolonged extent than that produced by succinylcholine. It remains a fact however, that a single large injection of succinylcholine should never be administered when the eye is open during intraocular surgery.
Résumé
Chez 50 pour cent des individus, la succinylcholine à dose unique, en vue de pratiquer une intubation, entraîne une augmentation appréciable de la tension ultra-oculaire. Toutefois, en deça de cinq minutes, la tension est revenue à ce qu’elle était, ce qui ne constitue pas une contrindication à ľemploi de la succinylcholine pour ľintubation des cas de chirurgie intra-oculaire puisque la tension est normale au moment où ľon ouvre ľœil. Si ľon emploie un goutte-à-goutte de succinylcholine à 0.1 pour cent pour, dépolariser le malade de façon à éviter les fasciculations des extrémités, il néexiste plus, à toute fin pratique, ďaugmentation de la tension oculaire. Ľintubation endotrachéene s’accompagne également ďune élévation de tension intra-oculaire qui semble plus importante que celle qui suit ľadministration de la succinylcholine. Cette augmentation de tension semble ďorigine réflexe et elle serait diminuée par une anesthésie locale adéquate.
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Wynands, J.E., Crowell, D.E. Intraocular tension in association with succinylcholine and endotracheal intubation: a preliminary report. Can. Anaes. Soc. J. 7, 39–43 (1960). https://doi.org/10.1007/BF03013681
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DOI: https://doi.org/10.1007/BF03013681