Mediators of Initial Acute and Later Posttraumatic Stress in Youth in a PICU.

ABSTRACT

OBJECTIVES: Youth in a PICU and their parents may experience initial symptoms of acute stress disorder and later symptoms of posttraumatic stress disorder. The objective of this study was to examine potential mediators of these conditions, including youth anxiety, depression, negative affect, and hospital fear, as well as parent anxiety and depression DESIGN: This study involved a short longitudinal design that encompassed initial assessments in a PICU setting and later assessments 4-7 weeks after discharge. SETTING: Youth and their parents completed dependent measures in the hospital and at follow-up at the youth's home or an outpatient clinic setting. PATIENTS Fifty youth aged 9-17 yrs were admitted to a PICU for respiratory illness/asthma (30.0%), trauma (26.0%), surgery and after surgery recovery (20.0%), infections/viral illness (8.0%), neurologic disorder (6.0%), or other (10.0%). Parents (n = 50) were also assessed. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Measures were utilized for youth anxiety, acute stress, depression, negative affect, posttraumatic stress, and hospital fear, as well as parent anxiety, acute stress, depression, and posttraumatic stress. Some youth (26%) and parents (24%) had substantial posttraumatic stress disorder symptoms develop. Youth acute stress disorder symptoms in the PICU predicted later youth posttraumatic stress disorder symptoms, parent acute stress disorder symptoms in the PICU predicted later parent posttraumatic stress disorder symptoms, and youth acute stress disorder symptoms in the PICU predicted later parent posttraumatic stress disorder symptoms. Youth anxiety, negative affect, and hospital fear mediated initial youth acute stress disorder symptoms and later youth posttraumatic stress disorder symptoms. CONCLUSIONS: Youth in a pediatric intensive care unit are at increased risk for posttraumatic stress disorder and should be screened for acute stress disorder.