Preoperative anxiety is a common problem in patients undergoing elective cesarean section and may negatively affect perioperative outcomes through activation of the stress response, including increased cortisol levels. Effective preoperative information is considered a key non-pharmacological strategy to reduce anxiety; however, the optimal method of information delivery remains unclear. This prospective randomized controlled trial aims to compare the effects of video-based versus verbal preoperative information on anxiety levels and serum cortisol response in patients scheduled for elective cesarean delivery under spinal anesthesia. Anxiety will be assessed using the State-Trait Anxiety Inventory (STAI), and serum cortisol levels will be measured before and after the intervention. The findings of this study are expected to provide evidence for improving patient-centered preoperative education strategies in obstetric anesthesia."
Pregnant women aged 18 years or older
Scheduled for elective cesarean delivery
Planned to receive spinal anesthesia
American Society of Anesthesiologists (ASA) physical status I-II
Emergency cesarean delivery
History of psychiatric disorders
Current use of anxiolytic or antidepressant medications
Endocrine disorders, particularly adrenal or thyroid disease
Parallel
Verbal Preoperative Information
BehavioralParticipants will receive standard preoperative information about anesthesia and the surgical procedure through face-to-face verbal communication delivered by an anesthesiologist according to routine clinical practice at least one hour before surgery.
Video-Based Preoperative Information
BehavioralParticipants will receive standardized video-based preoperative information covering anesthesia and the surgical procedure at least one hour before surgery. The content of the video will be equivalent to the verbal information provided in routine clinical practice.
Change in preoperative anxiety level measured by the State-Trait Anxiety Inventory (STAI-S)
Change in preoperative anxiety level measured by the State-Trait Anxiety Inventory-State (STAI-S), a 20-item scale with scores ranging from 20 to 80, where higher scores indicate greater anxiety.
Serum cortisol level change
Change in serum cortisol levels measured from venous blood samples obtained immediately before preoperative information and approximately 1 hour after preoperative information, before surgery.
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