The optimal distance between two electrode tips during recording of compound nerve action potentials in the rat median nerve

• DOI: 10.4103/1673-5374.125346
• Publication Date: 2014-04-04T07:29:29Z
• Authors: Jie Lao; Yongping Li; Xin Zhao; Dong Tian; Yi Zhu; Xiaochun Wei
• Keywords: Orthodromic; Antidromic; Action potential

The distance between the two electrode tips can greatly influence parameters used for recording compound nerve action potentials. To investigate optimal these recordings in rat median nerve, we dissociated using different methods and potentials were orthodromically or antidromically recorded with spacings. Compound could be consistently a method which middle part of was intact, both ends from surrounding fascia ground wire inserted into muscle close to intact part. When stimulating increased, threshold supramaximal intensity gradually decreased, but amplitude not changed significantly. exhibited no significant change. Different distances sites did produce effects on aforementioned parameters. A 5 mm electrodes 10 found potential nerve. In addition, orthodromic potential, biphasic waveform that more stable displayed less interference (however also required higher stimulus), superior antidromic potential.