Informed consent is a medical procedure given to patients who will undergo surgery or anesthesia. Anesthesia can cause anxiety in patients because of the fear of anesthesia which carries risks ranging from allergic reactions to cardiac arrest or prolonging the recovery of consciousness. Anxiety is a vague and pervasive worry. Anesthesia is required before surgery to eliminate all sensory sensations including pain, and works by reversibly depressing the central nervous system and eliminating pain. Providing informed consent for anesthesia before surgery can reduce the patient's anxiety level. The aim of this study was to determine the difference in preoperative anxiety levels of patients before and after surgery. consent to general anesthesia. Research conducted on patients before undergoing anesthesia showed a significant decrease in anxiety levels between before and after informed consent was explained.

Ardi Pramono has been an anesthesiologist for 15 years and has completed his PHD degree in 2021 from Gadjah Mada University, Yogyakarta, Indonesia. He is a lecturer at the Faculty of Medicine in the anesthesia department at Universitas Muhammadiyah, Yogyakarta, Indonesia. Many studies have been published in journals and he is the author of the textbook "Kuliah Anesthesia" for medical students in Indonesia, and the h-index of his publication is 3, with more than hundreds of citations.