星状神経節遮断による皮膚電位反応波形の変化

概要

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Skin potential responses (SPRs) were recorded bilaterally from the palmar thenar eminences before and after the stellate ganglion block (SGB). The SPRs on the blocked side gradually decreased in their amplitudes and the their wave-forms changed from positive SPRs to biphasic and negative SPRs, while the SPRs on the non-blocked side remained unchanged. The SPL on the blocked side also showed a gradual reduction but the relationship between the wave forms of SPR and the Skin Potential Level (SPL) was preserved even after the remarkable reduction of SPR amplides; higher SPL was accompanied by the positive SPR and lower SPL was acommpanied by the biphasic or negative SPRs. The comparison of the peak latencies of the SPR wave forms on both sides revealed phase relationships among the wave forms of SPRs; the rising point of the first negative peak in biphasic and negative SPR fell about a second before the first negative peak in the positive SPRs and so on. These findings support our previous hypothesis on the origin of the SPRs that SPRs are not differentiated on the level of the the stellate ganglion.
群馬大学の論文
1995-03-31