Rohdewald P, Keuth V
Institut für Pharmazeutische Chemie der Westfälischen Wilhelms-Universität Münster, Federal Republic of Germany.
Anesth Prog. 1990 Jan-Feb;37(1):4-10.
Investigations concerning the validity and sensitivity of algesimetric parameters were performed on 23 healthy volunteers on the basis of electrical tooth pulp stimulation. Bipolar tooth pulp stimulation has been proved to be superior to monopolar stimulation in respect to the reproducibility of threshold of sensation. Verbal numerical scale (VNS) was found to discriminate better between stimulus intensities than visual analogue scale in terms of sensitivity and reproducibility. The long-term reproducibility of subjective pain rating by VNS was surprisingly high. The evaluation of the amplitude of the somatosensory-evoked potential (SEP) was performed by two methods. Calculation on the basis of the N(2), P(1), and P(2) signal gives a more sensitive connection to stimulus intensity. The VNS was found to be more sensitive than SEP in differentiating stimulus intensities.
基于电刺激牙髓，对23名健康志愿者进行了有关痛觉测量参数有效性和敏感性的研究。在感觉阈值的可重复性方面，已证明双极牙髓刺激优于单极刺激。在敏感性和可重复性方面，发现言语数字评分量表（VNS）比视觉模拟评分量表能更好地区分刺激强度。VNS对主观疼痛评分的长期可重复性出奇地高。通过两种方法对体感诱发电位（SEP）的振幅进行评估。基于N(2)、P(1)和P(2)信号进行计算，能更敏感地反映刺激强度。发现在区分刺激强度方面，VNS比SEP更敏感。
