The Impact of Family Factors on Developmental and Psychosocial Outcomes in Children With Hypoplastic Left Heart Syndrome (HLHS) at 6 Years of Age - Pediatric Heart Network Single Ventricle Reconstruction Extension (SVR II) Ancillary Study

Survival for one of the most complex forms of congenital heart disease (CHD), hypoplastic left heart syndrome (HLHS), has improved dramatically; however, survivors are known to be at risk for both physical and psychosocial morbidity. In congenital heart disease, this psychosocial morbidity has been manifested as delays in cognitive and social development, behavior problems, reduced quality of life, as well as parenting stress, anxiety, and negative impact on the family. We have a relatively limited understanding of the causes of psychosocial morbidity and what factors may impact risk or protection for the child and family.

The environment in which a child spends the majority of their time exerts a significant impact on development. For infants and young children this "environment" is most commonly the immediate family. Interactions between illness characteristics and individual family member perceptions and expectations are an important determinant of the family's response to the presence of heart disease in a child. There is a critical gap in our understanding of how family-related factors influence psychosocial outcomes in the CHD population and if there are opportunities to intervene in order to improve outcomes for both children and families.

The primary aim of this study is to investigate the relationship between family factors including, parental mental health, parental health-related quality of life (HRQOL), family resources, and family function, and developmental and psychosocial outcomes in children with HLHS at 6 years of age. Secondary aims are to explore for differences in outcomes between different family types and to establish the feasibility of longitudinal investigation of the trajectory of child and family psychosocial function over time in this well-defined cohort of children and parents.

Longitudinal assessment of these family factors, in conjunction with neurodevelopmental and psychosocial evaluation of affected children, will provide improved understanding of how and when these factors influence child development. This will help to:

• Identify children/families at risk for problems,
• Elucidate the etiology and progression of psychosocial problems in children with congenital heart disease,
• Describe the relationships between child and family outcomes over time, and guide the development of family-focused interventions with a goal of preventing problems.