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The relationship of patient medical and laboratory characteristics to changes in functional health status in children and adolescents after the Fontan procedure.

ABSTRACT: Despite hypothesized concerns about deterioration beginning in adolescence, longitudinal data and associated factors regarding standardized assessment of physical functioning are not available for Fontan patients. Parents who participated in the Fontan Cross-Sectional Study completed the Child Health Questionnaire at 2 time points for 245 subjects ages 6-18 years. Associations between change in Physical Functioning Summary Score and baseline patient, medical, and laboratory characteristics (mean age 9.5 ± 1.7 years) and follow-up patient and medical characteristics (mean age 16.2 ± 1.6 years) were determined by regression analyses. During a mean of 6.7 ± 0.4 years, a small (not clinically important) but statistically significant decrease in score from 46.2 ± 11.7 to 44.5 ± 12.1 (p < 0.03) was noted. Subjects with higher baseline scores had a greater decrease in score (r = -0.48; p < 0.001). A multivariable model of patient and medical characteristics (R(2) = 0.11) showed that a greater decrease in score was significantly associated with interim development of asthma (n = 13; parameter estimate [PE] -6.6; p < 0.05) or other chronic respiratory, lung, or breathing problems (n = 13; PE -12.5; p < 0.001) and the presence of protein-losing enteropathy at any time (n = 12; PE -9.4; p = 0.006). Change in score was not significantly associated with baseline laboratory measures of exercise capacity and ventricular characteristics and function. Therefore, although physical functioning may be stable during adolescence for many Fontan patients, deterioration occurs in some in association with respiratory conditions and protein-losing enteropathy. Further longitudinal study is necessary to better understand the relationship between clinical morbidities and functional health status as these patients transition into adulthood.

SUBMITTER: McCrindle BW

PROVIDER: S-EPMC3959245 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature

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The relationship of patient medical and laboratory characteristics to changes in functional health status in children and adolescents after the Fontan procedure.

McCrindle Brian W BW Zak Victor V Breitbart Roger E RE Mahony Lynn L Shrader Peter P Lai Wyman W WW Burns Kristin M KM Colan Steven D SD Williams Richard V RV Goldberg David D Hill Kevin D KD Khaikin Svetlana S Atz Andrew M AM

Pediatric cardiology 20131122 4

Despite hypothesized concerns about deterioration beginning in adolescence, longitudinal data and associated factors regarding standardized assessment of physical functioning are not available for Fontan patients. Parents who participated in the Fontan Cross-Sectional Study completed the Child Health Questionnaire at 2 time points for 245 subjects ages 6-18 years. Associations between change in Physical Functioning Summary Score and baseline patient, medical, and laboratory characteristics (mean ...[more]

PMID: 24264999

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Project description:The study objectives were to compare the neurodevelopmental outcomes of preschool survivors of the Fontan procedure with those of children with congenital heart disease undergoing biventricular repair and to investigate predictors of neurodevelopmental outcome for those with single ventricle congenital heart disease, including hypoplastic left heart syndrome.Neurodevelopmental outcomes were assessed at 4 years of age, including cognition, visual-motor integration, behavior, social skills, and academic achievement. Unadjusted outcomes were compared between patients with biventricular circulation and patients with single ventricles. Predictors of neurodevelopmental outcome were assessed in the patients with single ventricles. Multiple covariate models were evaluated using patient-related, operative, and postoperative covariates.Neurodevelopmental evaluation was performed in 365 children, 112 after the Fontan procedure (hypoplastic left heart syndrome, n = 91; other single ventricle, n = 21) and 253 after biventricular repair. Compared with patients with biventricular circulation, patients with single ventricles performed worse in terms of processing speed, inattention, and impulsivity. Otherwise, there were no significant differences between the groups for any domain. There was a trend toward lower performance for patients with single ventricles on visual motor integration. Outcomes for patients with hypoplastic left heart syndrome were not worse than for other forms of functional single ventricle. Patient factors were more important predictors of neurodevelopmental outcomes than were operative management variables.In this cohort, unadjusted neurodevelopmental outcomes for preschool survivors of the Fontan procedure are similar to those for children with congenital heart disease undergoing biventricular repair for most domains. Among the patients undergoing the Fontan procedure, hypoplastic left heart syndrome was not associated with worse outcomes compared with other forms of single ventricle.

Project description:PurposeThe aim of this study was to compare associations between generic versus disease-specific functional health status assessments and patient and clinical characteristics for patients with severe congenital heart disease.MethodsThis was a cross-sectional observational study involving 325 single ventricle patients, aged 10-18 years, after Fontan procedure. Enrolled patients underwent a medical history review, laboratory testing, and assessment of the functional health status by completion of the generic Child Report Child Health Questionnaire and the disease-specific Congenital Heart Adolescent and Teenage questionnaire. Correlated conceptually equivalent domains from both questionnaires were identified and their associations with patient and clinical variables were compared.ResultsFrom the generic assessment, patients perceived marginally lower physical functioning (p = 0.05) but greater freedom from bodily pain compared with a normal population (p < 0.001). The equivalent physical functioning/limitations domain of the generic instrument, compared with the disease-specific instrument, had similar associations (higher multi-variable model R²) with medical history variables (R² = 0.14 versus R² = 0.12, respectively) and stronger associations with exercise testing variables (R² = 0.22 versus R² = 0.06). Similarly, the corresponding freedom from bodily pain/symptoms domains from both questionnaires showed a greater association for the generic instrument with medical history variables (R² = 0.15 versus R² = 0.09, respectively) and non-cardiac conditions (R² = 0.13 versus R² = 0.06). The associations of each questionnaire with echocardiographic results, cardiac magnetic resonance imaging results, and serum brain natriuretic peptide levels were uniformly weak (R² range <0.01 to 0.04).ConclusionsAssessment of the physical functional health status using generic and disease-specific instruments yields few differences with regard to associations between conceptually similar domains and patient and clinical characteristics for adolescents after Fontan procedure.

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The relationship of patient medical and laboratory characteristics to changes in functional health status in children and adolescents after the Fontan procedure.

Publications

The relationship of patient medical and laboratory characteristics to changes in functional health status in children and adolescents after the Fontan procedure.

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