Single-channel electroencephalography and its associations with anxiety and pain during oral surgery: a preliminary report

• Published in: Journal of dental anesthesia and pain medicine: JDAPM Vol. 21; no. 2; pp. 155 - 165
• Main Authors: Jabur, Roberto de Oliveira, Goncalves, Ramon Cesar Godoy, Faria, Kethleen Wiechetek, Semczik, Izabelle Millene, Ramacciato, Juliana Cama, Bortoluzzi, Marcelo Carlos
• Format: Journal Article
• Language: Korean
• Published: 2021
• Subjects: Third Molar; Pain; Oral Surgery; Anxiety; Electroencephalography; State-Trait Anxiety Inventory
• ISSN: 2383-9309; 2383-9317

Background: This study aimed to assess the course of anxiety and pain during lower third molar (LTMo) surgery and explore the role of mobile and single-channel electroencephalography under clinical and surgical conditions. Methods: The State-Trait Anxiety Inventory (STAI), Corah's Dental Anxiety Scale (DAS), and Interval Scale of Anxiety Response (ISAR) were used. The patient self-rated anxiety (PSA), the pain felt during and after surgery, EEG, heart rate (HR), and blood pressure (BP) were assessed. Results: The Attention (ATT) and Meditation (MED) algorithms and indicators evaluated in this study showed several associations. ATT showed interactions and an association with STAI-S, pain during surgery, PSA level, HR, and surgical duration. MED showed an interaction and association with DAS, STAI-S, and pain due to anesthesia. Preclinical anxiety parameters may influence clinical perceptions and biological parameters during LTMo surgeries. High STAI-Trait and PSA scores were associated with postoperative pain, whereas high STAI-State scores were associated with more pain during anesthesia and surgery, as well as DAS, which was also associated with patient interference during surgery due to anxiety. Conclusions: The findings suggest that single-channel EEG is promising for evaluating brain responses associated with systemic reactions related to anxiety, surgical stress, and pain during oral surgery.