Context: Acceptance and Commitment Therapy (ACT) is an emerging treatment for improving psychological well-being. Objective: To summarize research evaluating the effects of ACT on psychological well-being in children with special health care needs (SHCN) and their parents. Data Sources: An electronic literature search was conducted in PubMed, Web of Science, Ovid/EMBASE and PsycINFO (January 2000–April 2021). Study Selection: Included were studies that assessed ACT in children with SHCN (ages 0–17y) and/or parents of children with SHCN and had a comparator group. Data Extraction: Descriptive data were synthesized and presented in a tabular format, and data on relevant outcomes (e.g., depressive symptoms, stress, avoidance and fusion) were used in the meta-analyses to explore the effectiveness of ACT (administered independently with no other psychological therapy) compared to no treatment. Results: Ten studies were identified (child (7) and parent (3)). In children with SHCN, ACT was more effective than no treatment at helping depressive symptoms (standardized mean difference [SMD] = −4.27, 95% CI: −5.20, −3.34; p < 0.001) and avoidance and fusion (SMD = −1.64, 95% CI: −3.24, −0.03; p = 0.05), but not stress. In parents of children with SHCN, ACT may help psychological inflexibility (SMD = −0.77, 95% CI: −1.07, −0.47; p < 0.01). Limitations: There was considerable statistical heterogeneity in three of the six meta-analyses. Conclusions: There is some evidence that ACT may help with depressive symptoms in children with SHCN and psychological inflexibility in their parents. Research on the efficacy of ACT for a variety of children with SHCN and their parents is especially limited, and future research is needed.

The start of a parenting journey in the neonatal intensive care unit (NICU) presents many stressors to parents. Previous research has shown parents of infants admitted to the NICU experience heightened stress, anxiety, and depression. Mental health support varies across Canadian NICUs with mixed results. One promising intervention that has not been explored in the NICU is Acceptance and Commitment Therapy (ACT), a behavioural therapy that has had positive mental health-related outcomes in similar parental populations. ACT differs from previous mental health interventions such as traditional Cognitive Behavioural Therapy (CBT) as it involves mindfulness and acceptance to increase psychological flexibility. Increased psychological flexibility is linked to greater emotional well-being, a higher quality of life, and decreased stress, anxiety, and depression. There is a need for research investigating the utility of ACT in improving mental health outcomes for parents of preterm infants.