Intraoperative Electrophysiology Monitoring
Evoked Potential study (EPS)
• Visual evoked response (VER) test. This test can diagnose problems with the optic nerves that affect sight.
• Brainstem auditory evoked response (BAER) test. This test can diagnose hearing ability and can indicate the presence of brain stem
tumors and multiple sclerosis.
• Somatosensory evoked response (SSER) test. This test can detect problems with the spinal cord as well as numbness and weakness of the
extremities. VEP, SSEP, BAER (multichannel).