San Martín S, Bueno C, Montes C, Díaz-Calavia E, Teijeira J M, López-Reneo R
Servicio de Neurofisiología Clínica, Hospital Virgen de la Salud, Toledo, España.
Rev Neurol. 2000;31(8):720-3.
Determine the diagnostic validity of the most usual neurophysiological procedures in the examination of compressive neuropathies and/or ulnar nerve entrapment at the elbow.
A prospective observational study was carried out over a period of one year which included 19 patients with clinical features compatible with entrapment/compression of the ulnar nerve at the elbow, their neurophysiological diagnosis and surgical confirmation. We also studied 49 patients who were attended in our clinic for other reasons not related to disorders of the ulnar nerve. The variables studied were: maximum rate of motor conduction above the elbow; the amplitudes between spikes and the area between the first negative deflection and the last positive spike of the responses at the wrist and above the elbow.
In the group of persons without disorders of the ulnar nerve the average rate of motor conduction was 58.07 m/s, with a confidence interval of 53-65. In the group of patients with specific clinical features the average rate of motor conduction was 47.26 m/s, with a confidence interval of 43.74-50.77. No relation was found between age and pathology, although rate of motor conduction was related to the presence of pathology.
It was seen on logistical regression that the main variables for prediction of the presence or absence of pathology in a person were firstly motor conduction and secondly the amplitude index.
确定在检查压迫性神经病变和/或肘部尺神经卡压时最常用的神经生理学检查方法的诊断效度。
开展了一项为期一年的前瞻性观察研究，纳入了19例具有与肘部尺神经卡压/受压相符临床特征的患者，对其进行神经生理学诊断并通过手术确认。我们还研究了49例因与尺神经疾病无关的其他原因到我们诊所就诊的患者。所研究的变量包括：肘部以上运动传导的最大速率；腕部及肘部以上反应的波峰间波幅以及首个负向偏转与最后一个正向波峰之间的面积。
在无尺神经疾病的人群组中，运动传导的平均速率为58.07米/秒，置信区间为53 - 65。在具有特定临床特征的患者组中，运动传导的平均速率为47.26米/秒，置信区间为43.74 - 50.77。未发现年龄与病变之间存在关联，尽管运动传导速率与病变的存在有关。
通过逻辑回归发现，预测一个人是否存在病变的主要变量首先是运动传导，其次是波幅指数。
