Relationship Between Preoperative Fasting Duration and Anxiety Levels With Postoperative Pain, Nausea-Vomiting, and Sleep Quality in Orthopedic Surgical Patients: A Cross-Sectional Study.

This study is a cross-sectional study aimed to determine the association between preoperative fasting time and anxiety level and early postoperative pain intensity, nausea-vomiting severity, and sleep quality in patients undergoing orthopedic surgery. The study was conducted between March and June 2024 and completed with 188 patients. In the study, patient information form, Amsterdam Preoperative Anxiety and Information Scale, and Richards-Campbell Sleep Questionnaire were used. Correlation analysis indicated a significant negative correlation between postoperative sleep quality and pain intensity. There was a significant positive correlation between preoperative anxiety level and preoperative solid food fasting and fluid fasting times. According to the multiple linear regression model, preoperative anxiety level was found to have a significant effect on pain severity, and pain severity at the postoperative 24th hour significantly affected postoperative sleep quality. Adjusting patients' fasting durations prior to surgical interventions according to evidence-based guideline recommendations and monitoring anxiety closely are simple, practical, and safe measures that could alleviate postoperative pain and nausea-vomiting and improve sleep quality, potentially enhancing outcomes, comfort, and the quality of care.