A new study has found that monitoring pain response levels during surgery with NOL technology (Medasense, Ramat Gan, Israel) can help reduce postoperative pain. Exploring the clinical effect of NOL guided fentanyl dosing on post-operative pain, the study demonstrated that patient pain scores after surgery were 30% lower when administration of pain medication during surgery was guided with NOL monitoring. The study corroborates the findings of the study by Meijer and colleagues that also found that NOL guided analgesia during sevoflurane/fentanyl anesthesia reduced pain scores by 33%.