PHANTOM PHENOMENA DURING REGIONAL ANESTHESIA

  • 1 January 1983
    • journal article
    • research article
    • Vol. 32  (4) , 30-35
Abstract
Phantom phenomena were studied following the administration of peridural (PDA), spinal (SA) and brachial plexus anesthesia (PB) to 200 patients undergoing a peripheral surgical procedure. Of the subjects in PDA, 18%, 40% in SA and 63% in the PB group reported a typical, phantom of lower, or upper extremities. Various additional (atypical) forms of phantoms were observed: 10% in PDA, 24% in SA and 6% in PB group. Sex, age, tourniquet, premedication and type of local anesthetic did not influence substantially the occurrence of phantom. The latter was however directly related to the total dose (mg) of local anesthetic administered. The appearance of phantom was not always a guarantee of successful block. The possible mechanisms of painless phantoms are discussed.

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