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  • Title: Skin pretreatments for shortening onset of dermal patch anesthesia with 3% GA MHPh 2Na-10% lidocaine gel mixture.
    Author: Kano T, Nakamura M, Hashiguchi A, Sadanaga M, Morioka T, Mishima M, Nakano M.
    Journal: Anesth Analg; 1992 Oct; 75(4):555-7. PubMed ID: 1530169.
    Abstract:
    Three types of skin pretreatments (stripping with adhesive tape, scrubbing with Skin-Pure jelly, and cleaning with benzine) were studied in 21 volunteers to determine whether the pretreatments could shorten the application period of transdermal 3% GA MHPh 2Na-10% lidocaine gel. Before application of the gel, each subject received skin pretreatment on the volar surface of one forearm. Then, the lidocaine gel soaked in a round sponge was applied on both the pretreated area of the forearm and the unpretreated contrast area of the other forearm. A pain score was obtained from each subject at 30, 45, 60, and 75 min after placement of the dermal patch by noting the number of painful pinpricks of five delivered. The mean pain scores on the pretreated side were significantly lower at 30, 45, and 60 min in the stripping study group and at 45 and 60 min in the cleaning study group, compared with the corresponding scores on the unpretreated side (P less than 0.05). Skin pretreatments, such as stripping and cleaning, are useful for shortening the onset of the dermal patch anesthesia.
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