A new pitfall in a sensory conduction study of the lateral antebrachial cutaneous nerve: Spread to the radial nerve.
A new pitfall in a sensory conduction study of the lateral antebrachial cutaneous nerve: Spread to the radial nerve.
复制标题
前臂外侧皮神经感觉传导研究中的一个新陷阱：扩散到桡神经。
作者：
Oishi C;Sonoo M;Kurono H;Hatanaka Y;Shimizu T;Chiba A;et al.
简介：我们描述了一个以前未报道的陷阱，传播的刺激在手肘的桡神经，在一个逆向感觉神经传导研究的外侧前臂皮（LAC）nerve.Methods：受试者包括80名健康志愿者，双方进行了检查，每个主题。结果：160只手臂中有73只（46%）出现了桡神经动作电位（SNAP）的扩散现象，SNAP的振幅因污染而增加，最高可达真实LAC SNAP的6.7倍。在10个武器（6%），传播开始前LAC SNAP饱和，真正的LAC SNAP是未知的，由于解剖变异，至少有1 arm.Conclusions：没有监测远端径向SNAP，传播现象将仍然无法识别。这个陷阱破坏了测试的可靠性。肌肉神经50：186-192，2014
Introduction: We describe a previously unreported pitfall, spread of the stimulus at the elbow to the radial nerve, in an antidromic sensory nerve conduction study of the lateral antebrachial cutaneous (LAC) nerve.Methods: Subjects consisted of 80 healthy volunteers, and both sides were examined for each subject. Besides routine recording of the LAC nerve, sensory nerve action potentials (SNAPs) of the radial nerve were recorded distally.Results: The spread phenomenon occurred in 73 of 160 arms (46%), and the SNAP amplitude increased due to contamination of the radial SNAP up to 6.7 times the genuine LAC SNAP. In 10 arms (6%), the spread started before the LAC SNAP was saturated, and the genuine LAC SNAP was unknown due to an anatomical variation in at least 1 arm.Conclusions: Without monitoring distal radial SNAPs, the spread phenomenon will remain unrecognized. This pitfall undermines the reliability of the test.Muscle Nerve50:186–192, 2014