Details

Autor(en) / Beteiligte

• Verst, Silvia Mazzali
• Chung, Tae Mo
• Sucena, Andrea Caivano
• Maldaun, Marcos Vinicius Calfat
• Aguiar, Paulo Henrique Pires

Titel

Comparison between the C5 or C6-Cz electrode assembly and C3 or C4-Cz assembly for transcranial electric motor activation of muscular response of the contralateral facial nerve

Ist Teil von

• Acta neurochirurgica, 2012-12, Vol.154 (12), p.2229-2235

Ort / Verlag

Vienna: Springer Vienna

Erscheinungsjahr

2012

Quelle

MEDLINE

Beschreibungen/Notizen

• Objective We used an assembly of electrodes C3 and C4-Cz in order to activate the motor cortical area of the corticobulbar tract to elucidate the motor-evoked potential of the contralateral mentalis muscle. Method We compared this setup to that of an assembly with electrodes C5 or C6-Cz using a train of electrical pulses and a single electrical pulse. This analysis was made in 23 consecutive patients who underwent several varied surgeries and were prospectively operated on at Santa Paula Hospital between January and June 2011. Results The results showed that the assembly with C5 or C6-Cz produced a multisynaptic motor-evoked potential in the contralateral mentalis muscle in 86.9 % of the patients, whereas 82.6 % of patients stimulated at points C3 or C4-Cz presented the same response. However, both assemblies showed similar behavior with the use of a single electrical pulse for peripheral contralateral nerve stimulation. Conclusion We concluded that the C5 or C6-Cz assembly was similar to C3 or C4-Cz in obtaining a multisynaptic response in the contralateral mentalis muscle, although it required less intensive stimulation than the C3 or C4- Cz assembly.