The primary objective of this study is to measure parent's post-traumatic stress before and after their infant's second palliative heart surgery for single ventricle congenital heart disease. The investigators will use the posttraumatic stress disorder checklist for the DSM-V (PCL-5) to measure levels 2-4 weeks before and after the infant's second heart surgery. The investigators aim to describe the levels at the two-time points, compare the scores, and identify demographic information that correlates with the scores.

Inclusion Criteria:

• Parent who is 18 years or older of an infant with SVCHD
• Following with CHAMP through Children's Mercy Hospital. Any person personally identifying as a parent of the child, who lives in the same household as the infant, and who will provide primary care after discharge from the hospital is eligible to participate.

Exclusion Criteria:

• Parents of an SVCHD infant who is undergoing end-of-life care, determined by the primary care team.

Parents of infants with single ventricle congenital heart disease participating in the Cardiac High Acuity Monitoring Program (CHAMP)