... Practice of Clinical Electroencephalography. 3rd ed.Lippincott Williams & Wilkins, Philadelphia, 20 03: 8 03 832 .Rechtschaffen A, Kales A, eds. A manual of standardized terminology, tech-niques ... P31/N34 forlower) and cortical (N20 for upper, P37 for lower) waveforms are fol-lowed during surgery. SEPs monitor the posterior aspect of spinal cord(dorsal columns) and therefore, are often ... of the surgery, the patient is likely to have post-operative hearing loss. However, the loss of the wave V is not incom-patible with preserved hearing (false-positive). When complete loss of wave...