Abstract: Objective: To investigate the incidence and influencing factors of Orthostatic Intolerance (OI) in patients with Adolescent Idiopathic Scoliosis (AIS), and to provide reference for clinical nursing intervention. Methods: A total of 104 patients underwent posterior correction internal fixation and bone graft fusion from June 2020 to March 2021 were enrolled in this study. The status of OI was recorded. The demographic characteristics, disease information and treatment information were collected. Results: Totally 36 cases (34.6%) had OI. The incidence of dizziness, nausea and blurred vision were 100.0%, 66.7% and 33.3% respectively. No patient experienced syncope. Binary logistic regression demonstrated that lack of positional fitness training, long time stay in bed, and high pain level during sitting were independent risk factors for AIS patients who developed OI. Conclusion: OI was common for AIS patients with prolonged postoperative hospitalization. Clinical staff can reduce the occurrence of OI by encouraging patients early mobilization, providing perambulation training, and optimizing pain control during mobilization.

Key words: adolescent idiopathic scoliosis; Orthostatic Intolerance; root case of analysis; nursing care