Audiovisual technology intervention for reducing preoperative anxiety in children undergoing general anesthesia: A systematic review and meta-analysis.

Preoperative anxiety (POA) is a concern for children undergoing surgery, especially with general anesthesia. POA can result in many postoperative problems, such as physical, psychological, and financial problems. Nonpharmacological treatments have been investigated for reducing POA as they are more pleasant and have fewer adverse effects compared to pharmacological treatments.