Department of Medical Sciences, Universidade de Brasília Brasília, Brazil.
Department of Child Neurology, Hospital da Criança de Brasília José de Alencar Brasília, Brazil.
J Clin Neurophysiol. 2023 Sep 1;40(6):541-546. doi: 10.1097/WNP.0000000000000921. Epub 2022 Mar 29.
To establish cutaneous silent period (CSP) normative values and investigate the variables that may influence them.
We tested 41 healthy subjects. All subjects underwent nerve conduction studies, and we evaluated the CSP in both arms.
Four subjects did not have CSP and were excluded. The analyses were performed in the healthy group composed of 23 women and 14 men, with a mean age of 35 (range, 19-64) years. The CSP median duration was 23.2 milliseconds (ms), with 2 to 98th percentile at 11.3 and 48.7 ms. The median onset latency was 87.9 (range, 72.9-109) ms, and the median end latency was 112 (range, 93.8-138) ms. The CSP onset latency positively correlated with height, whereas CSP end latency and duration were weakly but significantly associated with age. Some measurements of ulnar nerve conduction study also correlated with CSP measures. The interrater coefficients for the primary measures of onset and end latency demonstrates the reproducibility of the method.
The CSP with the fifth digit stimulation and recording from the abductor digiti minimi muscle is a valid diagnostic tool that can be used in clinical practice.
建立皮肤性静息期（CSP）的正常值，并探讨可能影响这些值的变量。
我们测试了 41 名健康受试者。所有受试者均接受了神经传导研究，我们评估了双侧手臂的 CSP。
4 名受试者未出现 CSP，被排除在外。分析在由 23 名女性和 14 名男性组成的健康组中进行，这些受试者的平均年龄为 35 岁（范围 19-64 岁）。CSP 中位持续时间为 23.2 毫秒（ms），2 至 98 百分位值为 11.3 和 48.7 ms。中位起始潜伏期为 87.9（范围 72.9-109）ms，中位末端潜伏期为 112（范围 93.8-138）ms。CSP 起始潜伏期与身高呈正相关，而 CSP 末端潜伏期和持续时间与年龄呈弱但显著相关。一些尺神经传导研究的测量值也与 CSP 测量值相关。起始和末端潜伏期的主要测量指标的组内相关系数证明了该方法的可重复性。
使用第五指刺激和记录小指展肌的 CSP 是一种有效的诊断工具，可在临床实践中使用。
