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OBJECTIVE: To create complexity groups based upon a patient's cardiac medical history and to test for group differences in health-related quality of life (HRQOL). METHODS: Patients 8-18 years with congenital heart disease (CHD) and parent-proxies from the Pediatric Cardiac Quality of Life Inventory (PCQLI) Testing Study were included. Outcome variables included PCQLI Total, Disease Impact, and Psychosocial Impact scores. Using a patient's medical history (cardiac, neurologic, psychological, and cognitive diagnosis), latent class analysis (LCA) was used to create CHD complexity groups. Covariates included demographics and burden of illness (number of: school weeks missed, physician visits in the past year, and daily medications). Generalized estimation equations tested for differences in burden of illness and patient and parent-proxy PCQLI scores. RESULTS: Using 1482 CHD patients (60% male; 84% white; age 12.3 ± 3.0 years), latent class analysis (LCA) estimates showed 4 distinct CHD complexity groups (Mild, Moderate 1, Moderate 2, and Severe). Increasing CHD complexity was associated with increased risk of learning disorders, seizures, mental health problems, and history of stroke. Greater CHD complexity was associated with greater burden of illness (P < .01) and lower patient- and parent-reported PCQLI scores (P < .001). CONCLUSIONS: LCA identified 4 congenital heart disease (CHD) complexity groupings. Increasing CHD complexity was associated with higher burden of illness and worse patient- and parent-reported HRQOL.

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OBJECTIVE: To evaluate whether effects of congenital heart disease (CHD) severity and family life stress on behavioral and emotional functioning are mediated by disease-related chronic stress and psychosocial adaptation. STUDY DESIGN: A cross-sectional analysis of the Pediatric Cardiac Quality of Life Inventory Testing Study was performed. Relationships between CHD severity (comprising 3 groups: mild heart disease, moderate biventricular disease, and single ventricle) and family life stress, on patient- and parent disease-related chronic stress, psychosocial adaptation, and behavioral-emotional outcomes were assessed using structural equation modeling. Patient and parent models were reported separately. RESULTS: There were 981 patient-parent dyads: 22% had mild heart disease, 63% biventricular, and 15% single ventricle; 19% of families reported moderate to major family life stress. Path models revealed that CHD severity and family life stress were mediated by disease-related chronic stress and psychosocial adaptation factors (R2 = 0.18-0.24 for patient outcomes and R2 = 0.33-0.34 for parent outcomes, P < .001, respectively). CONCLUSIONS: The effects of greater CHD severity and family life stress on behavioral-emotional outcomes were mediated by worse disease-related chronic stress and psychosocial adaptation factors. Both disease-related chronic stress and psychosocial adaptation factors may be targets for interventions to improve behavioral and emotional outcomes.

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OBJECTIVE: To identify mediators of health status and quality of life (QOL) in children and adolescents aged 8-18 years old following surgical repair for tetralogy of Fallot (TOF), including resource use, exercise performance, and 22q11.2 deletion status. STUDY DESIGN: We performed a corollary study to a cross-sectional analysis of subjects following repair for TOF that completed cardiac magnetic resonance imaging, cardiopulmonary exercise tests, and instruments assessing health status and QOL. General linear models were used to test for mediation. RESULTS: A total of 29 of 151 (19%) patients carried a 22q11.2 deletion. Parents of children with a deletion compared with those without a deletion reported worse physical and psychosocial functioning on the Child Health Questionnaire. The patients with a 22q11.2 deletion and their parents reported lower total and Disease Impact scores compared with the group without a deletion on the Pediatric Cardiac Quality of Life Inventory. Medical care use negatively correlated with measures of health status/QOL. Greater maximum work correlated with better patient health status and QOL, regardless of deletion status. Exercise performance mediated the association between deletion status and parent-reported outcomes (unstandardized effects ranging from 2.4 to 4.2) and patient-reported Disease Impact (0.99; 95% CI 0.02-2.70). CONCLUSION: Children and adolescents following repair for TOF seem to suffer significant challenges to their health status and QOL, which is amplified markedly in the context of the 22q11.2 deletion syndrome, and related to exercise performance.

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OBJECTIVE: To investigate the presence and severity of real-world impairments in executive functioning-responsible for children's regulatory skills (metacognition, behavioral regulation)-and its potential impact on school performance among pediatric survivors of complex congenital heart disease (CHD). STUDY DESIGN: Survivors of complex CHD aged 8-16 years (n = 143) and their parents/guardians from a regional CHD survivor registry participated (81% participation rate). Parents completed proxy measures of executive functioning, school competency, and school-related quality of life (QOL). Patients also completed a measure of school QOL and underwent IQ testing. Patients were categorized into 2 groups based on heart lesion complexity: 2-ventricle or single-ventricle. RESULTS: Survivors of complex CHD performed significantly worse than norms for executive functioning, IQ, school competency, and school QOL. Metacognition was more severely affected than behavioral regulation, and metacognitive deficits were more often present in older children. Even after taking into account demographic factors, disease severity, and IQ, metacognition uniquely and strongly predicted poorer school performance. In exploratory analyses, patients with single-ventricle lesions were rated as having lower school competency and school QOL, and patients with 2-ventricle lesions were rated as having poorer behavioral regulation. CONCLUSIONS: Survivors of complex CHD experience greater executive functioning difficulties than healthy peers, with metacognition particularly impacted and particularly relevant for day-to-day school performance. Especially in older children, clinicians should watch for metacognitive deficits, such as problems with organization, planning, self-monitoring, and follow-through on tasks.

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OBJECTIVE: To determine whether clinicians could reliably predict health-related quality of life (HRQOL) for children with cardiac disease, the level of agreement in predicted HRQOL scores between clinician sub-types, and agreement between clinician-predicted HRQOL scores and patient and parent-proxy reported HRQOL scores. STUDY DESIGN: In this multicenter, cross-sectional study, a random sample of clinical summaries of children with cardiac disease and related patient and parent-proxy reported HRQOL scores were extracted from the Pediatric Cardiac Quality of Life Inventory data registry. We asked clinicians to review each clinical summary and predict HRQOL. RESULTS: Experienced pediatric cardiac clinicians (n = 140), including intensive care physicians, outpatient cardiologists, and intensive care, outpatient, and advanced practice nurses, each predicted HRQOL for the same 21 pediatric cardiac patients. Reliability within clinician subspecialty groups for predicting HRQOL was poor (intraclass correlation coefficients, 0.34-0.38). Agreement between clinician groups was low (Pearson correlation coefficients, 0.10-0.29). When comparing the average clinician predicted HRQOL scores to those reported by patients and parent-proxies by Bland Altman plots, little systematic bias was present, but substantial variability existed. Proportional bias was found, in that clinicians tended to overestimate HRQOL for those patients and parent-proxies who reported lower HRQOL, and underestimate HRQOL for those reporting higher HRQOL. CONCLUSIONS: Clinicians perform poorly when asked to predict HRQOL for children with cardiac disease. Clinicians should be cognizant of these data when providing counseling. Incorporating reported HRQOL into clinical assessment may help guide individualized treatment decision-making.

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OBJECTIVES: To compare health-related quality of life (HRQOL) in a group of pediatric patients with congenital heart disease (CHD) and healthy controls and patients with other chronic diseases, and to compare HRQOL among patients with CHD of various severity categories with one another, with controls, and with patients with other chronic diseases. STUDY DESIGN: In this cross-sectional survey, t tests were used to compare patient and proxy-reported Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL) scores (including total, physical health, and psychosocial health summary scores) in children (aged 8-12 years) and adolescents (aged 13-18 years) between controls and (1) a composite CHD population; and (2) patients in each of 3 CHD severity categories: mild (no intervention), biventricle (BV; postintervention), and single ventricle (SV; postpalliation). PedsQL scores among CHD severity categories were compared by ANOVA. PedsQL scores were also compared in the CHD population and children with other chronic diseases without age stratification using t tests. RESULTS: There were 1138 (children, n = 625; adolescents, n = 513) and 771 (children, n = 528; adolescents, n = 243) patient and/or proxy reporters in the CHD and healthy control groups, respectively. Total, physical health, and psychosocial health summary scores were lower in the composite CHD, BV, and SV groups compared with controls (P < .0001). There were significant differences among disease severity categories for all scores (P < .01). The composite CHD, BV, and SV groups had similar PedsQL scores as end-stage renal disease, asthma, and obesity populations. CONCLUSION: Children and adolescents with BV and SV CHD have significantly lower HRQOL than healthy controls and similar HRQOL as patients with other chronic pediatric diseases. Interventions targeting both physical and psychosocial domains are needed to improve HRQOL in this high-risk population.

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