Advances in technology often require changes in anesthesia practice. The advent of somatosensory evoked potential (SEP) monitoring during extensive procedures on the back has required us to rethink our methods of providing anesthesia. To further complicate the clinical setting, deliberate hypotensive anesthesia is often warranted for these same procedures. Our anesthetic agents and the deliberate hypotensive techniques may interfere with SEP monitoring. Therefore, I asked four anesthesiologists for their solutions.