Dyadic Mental Health in Paediatric Congenital Heart Disease: Actor–Partner Associations Between Child HRQoL/Depression and Caregiver Stress Across Lesion Severity

TL;DR

This study explores how children with heart disease and their caregivers influence each other's mental health, finding that more severe heart conditions and hospitalizations worsen both child and caregiver wellbeing.

Contribution

The study introduces a novel dyadic analysis linking child health-related quality of life and caregiver stress across varying heart disease severity levels.

Findings

Child HRQoL and caregiver mental health scores decrease with increasing lesion severity.

Caregiver stress and burnout are strongly associated with lower child HRQoL and higher child depressive symptoms.

Unscheduled hospitalizations are linked to poorer mental health outcomes in both children and caregivers.

Abstract

Background and Objectives: We examined how health-related quality of life (HRQoL) in children with congenital heart disease (CHD) and caregiver stress/burnout relate in terms of lesion severity. Methods: We enrolled 72 child–caregiver dyads at a tertiary centre (May 2023–April 2025). Children completed PedsQL and CDI (anxiety assessment via SCARED-C was descriptive and not modelled in APIM); caregivers completed SF-36, PSS-10, and the Parental Burnout Assessment (PBA). Lesion severity (mild n = 22, moderate n = 34, severe n = 16) and LVEF were abstracted. Pearson correlations and actor–partner interdependence models (APIM) estimated within- and cross-partner effects. Results: Child PedsQL decreased with severity (mild 81.2 ± 7.4; moderate 70.9 ± 8.1; severe 63.3 ± 5.1; p < 0.001); caregiver SF-36 Mental Component Summary (MCS) showed a parallel gradient (66.8 ± 9.2; 59.7 ± 8.5; 54.1 ± 7.9; p < 0.001). Child HRQoL correlated with caregiver MCS (r = 0.46) and inversely with caregiver stress (PSS r = −0.42) and burnout (PBA r = −0.39). In APIM, caregiver stress predicted a caregiver’s own MCS (actor β = −0.38, p < 0.001) and the child’s PedsQL (partner β = −0.26, p = 0.002); higher child depressive symptoms predicted lower caregiver MCS (partner β = −0.22, p = 0.006). Each step up in lesion severity independently reduced child PedsQL by 7.9 points and caregiver MCS by 5.3 points (both p < 0.001). Dyads with unscheduled hospitalizations (n = 43) had poorer scores in both members. Conclusions: Psychological wellbeing in CHD dyads is strongly interdependent; caregiver stress relates to lower child HRQoL and child mood to caregiver mental health. Brief dyadic screening (PedsQL/SF-36 with PSS/CDI) and integrated, family-focused interventions may better target high-risk families, particularly with severe lesions or recent hospitalizations.

Figures