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Ambiguous Loss and Congenital Heart Defects (CHDs)

Ages Prenatal - 24+ Years

When a child has a congenital heart defect (CHD), they and their loved ones sometimes feel a complex form of grief connected to "ambiguous loss." They may be grieving something that never happened, or feel like they are grieving part of a child who is alive and present. The grief of ambiguous loss can be hard to understand, and can disrupt people's lives. However, it can get much better when it is appropriately treated.

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What is ambiguous loss?

"Ambiguous loss" describes situations when a loss is unclear, unconfirmed, or unresolved. It is different from the type of loss we feel when a loved one dies, and it can be more complex. A person might experience ambiguous loss when:

  • they no longer feel emotionally connected with a loved one

  • a loved one has lost skills or abilities

  • they no longer have contact with a loved one as much as they would like

  • a loved one is missing, and they do not know what has happened to them

  • they can no longer interact with a loved one in the way we used to

  • their loved one's life or relationships are different from what they had hoped for

  • their imagined future for a loved one has changed

  • family structure and/or functioning has changed

  • their community has changed or gone away


'Ambiguous loss' describes situations when a loss is unclear, unconfirmed, or unresolved.

A dad in a blue shirt holds his son, who has a congenital heart defect (CHD), and puts his face nose to nose.

Signs of ambiguous loss

Ambiguous loss is complex, and people experiencing it often feel a range of emotions that change over time. The grief of ambiguous loss is often less linear and predictable than grief after a death. When managing ambiguous loss, a person searches for resolution and closure. They may cycle through different stages of grief, or remain stuck on one stage for a long time.

Symptoms of ambiguous loss can include:

  • chronic sadness

  • emotional numbness

  • persistent longing

  • constantly thinking about the loss, and difficulty thinking about anything else

  • physical symptoms such as difficulty sleeping, digestion problems, and headache

  • guilt, remorse, or anger

  • feeling "stuck," like grief is not getting better

  • hopelessness or a sense of helplessness

  • being troubled by conflicting feelings

  • a general sense of insecurity and lack of trust

  • uncertainty about identity and purpose

A little boy with a congenital heart defect (CHD) stands in front of a city building in a black jacket and mask.

Ambiguous loss and CHD caregivers

Parents and other caregivers often experience ambiguous loss when a child has a congenital heart defect (CHD). These feelings can be hard to identify and understand, and are very individual. It is common for caregivers to feel ambiguous loss when:

  • a child receives a new diagnosis

  • a child loses skills or becomes less healthy

  • other children and other families seem to be having an easier time

  • a child or a family misses out on opportunities or fun activities

  • a child is unable to do certain things that the parents had expected

  • a parent cannot interact with the child in the ways they expected, or in the ways they used to be able to interact

  • a child has a poor or uncertain prognosis

  • parents have trouble relating to other parents because their experiences seem so different

Click below for different parents' experiences with ambiguous loss.

These links are provided as resources only. Boston Children's Hospital and the Benderson Family Heart Center don't necessarily endorse all of the information on these sites.

A grandmother kisses the hand of a baby with a congenital heart defect (CHD) who is bundled in blue blankets.

Ambiguous loss and kids with CHDs

Many kids with heart defects feel a sense of ambiguous loss, but may have trouble expressing the nature of their grief. Ambiguous loss is common when they:

  • feel like they are missing out on something

  • receive a new diagnosis

  • are unable to fully participate in something fun

  • think about the future, especially if their prognosis is uncertain or poor

  • struggle to connect with other kids who do not have the same experiences

  • lose skills or become less healthy

  • have to spend a long time in the hospital

A teen girl with a congenital heart defect (CHD) wears a gray hat and has black hair.

Ambiguous loss and healthy siblings

When a child in a family has a heart defect, their siblings often experience grief associated with ambiguous loss. Healthy siblings often face ambiguous loss when:

  • a new baby dramatically changes the family structure

  • parents seem to spend most of their time and attention on the sick child

  • parents spend less time with the healthy child than they used to

  • the family can no longer do some of the activities they used to do

  • parents stay at the hospital with the sick child

  • they have trouble connecting with peers who do not have similar experiences

  • they cannot do fun events or activities because of a sibling's medical care

  • their sibling loses skills or becomes less healthy

  • sudden emergencies make life feel uncertain

  • they cannot interact with their sibling in the same way they see other kids interacting with siblings

  • their sibling has an uncertain or poor prognosis

Two brothers with congenital heart defects (CHDs) sit on a picnic blanket outside eating.

Treatment for ambiguous loss

A mother wearing a brown cardigan snuggles her baby who wears a white had and has a congenital heart defect (CHD).

The grief of ambiguous loss is complicated, but it can get better with appropriate treatment. Treatment for ambiguous loss depends on an individual's age and needs, but can include:

  • individual therapy

  • group therapy

  • medication to manage anxiety and/or depression

The treatment goals for people grieving ambiguous loss tend to focus on coping and resilience. Many therapists help people reach the following goals:

  1. Naming the loss and identifying what the loss means

  2. Finding a way to feel mastery and control

  3. Forging identity, community, and purpose

  4. Normalizing and accepting conflicting feelings

  5. Adjusting attachment and relationships

  6. Finding ways to move forward and find hope in the future despite unresolved loss

Adjustment, acceptance, and moving forward

Ambiguous loss and its accompanying grief can make people feel stuck. They may have trouble accepting their present and their future, and find it hard to move forward. Through treatment, people can learn to feel positive about the future even in the face of ambiguity and uncertainty.

If you or your child is experiencing ambiguous loss, know that you are not alone, and help is available. Share your concerns with your doctor, psychologist, and/or cardiac neurodevelopmental team, and they can help you find appropriate resources in your area.

This content was reviewed by a psychologist at Boston Children's Hospital.

Developmental care is best when it is local. Families local to Boston can schedule evaluations with the Cardiac Neurodevelopmental Program (CNP). Families from other regions can use the link below to find their care team.

Dandy, S., Wittkowski, A., & Murray, C. D. (2024). Parents' experiences of receiving their child's diagnosis of congenital heart disease: A systematic review and meta‐synthesis of the qualitative literature. British journal of health psychology, 29(2), 351-378.https://bpspsychub.onlinelibrary.wiley.com/doi/pdf/10.1111/bjhp.12703
Edington, P. (2022). Moving Through Loss: The Experience of Ambiguous Loss with Hospitalized Children, The Development of a Method.https://digitalcommons.lesley.edu/cgi/viewcontent.cgi?article=1609&context=expressive_theses
Hillegas, E. (2012). Family experiences of ambiguous loss in response to serious childhood illness: Parental perspectives (Doctoral dissertation, University of St. Thomas, Minnesota).https://s3.amazonaws.com/na-st01.ext.exlibrisgroup.com/01CLIC_STTHOMAS/storage/alma/75/1F/4B/E6/02/6D/CE/4E/CB/AC/21/90/75/AB/B0/16/Family%20Experiences%20of%20Ambiguous%20Loss%20in%20Response%20to%20Serious%20Child.pdf?response-content-type=application%2Fpdf&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20260211T192557Z&X-Amz-SignedHeaders=host&X-Amz-Credential=AKIAJUYRSPBSIJGGDX6A%2F20260211%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Expires=119&X-Amz-Signature=6b584f2620f697f900477a4e4aa33462ff635409923607bd65b9525402fdd505
Lee, Y. J., Park, H. J., & Lee, S. Y. (2022). Learning to live with ambiguity: Rethinking ambiguous loss for mothers of children with disabilities. Sage Open, 12(2), 21582440221095014.https://journals.sagepub.com/doi/full/10.1177/21582440221095014
Moorman, E., Williams, C., Christofferson, J., McWhorter, L. G., Demianczyk, A. C., Kazak, A. E., ... & Sood, E. (2025). Loss and Grief in Parents of Children Hospitalized for Congenital Heart Disease. Hospital pediatrics, 15(5), 433-441.https://publications.aap.org/hospitalpediatrics/article/15/5/433/201486/Loss-and-Grief-in-Parents-of-Children-Hospitalized?autologincheck=redirected
Moreland, P., & Santacroce, S. J. (2018). Illness uncertainty and posttraumatic stress in young adults with congenital heart disease. Journal of Cardiovascular Nursing, 33(4), 356-362.https://pmc.ncbi.nlm.nih.gov/articles/PMC5995605/pdf/nihms921125.pdf
Pauline, B., & Boss, P. (2009). Ambiguous loss: Learning to live with unresolved grief. Harvard University Press.https://www.researchgate.net/profile/Pauline-Boss/publication/373044042_Ambiguous_Loss_Living_Beyond_Loss_Death_in_the_Family_Boss_2004/links/64d53795b684851d3d9d6433/Ambiguous-Loss-Living-Beyond-Loss-Death-in-the-Family-Boss-2004.pdf
Ward, A. (2011). The grief experience of caregivers when the child has a life threatening illness. Loma Linda University.https://scholarsrepository.llu.edu/cgi/viewcontent.cgi?article=1349&context=etd

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