Laboratory Measures of Exercise Capacity and Ventricular Characteristics and Function Are Weakly Associated With Functional Health Status After Fontan Procedure

Patients after the Fontan procedure are at risk for suboptimal functional health status, and associations with laboratory measures are important for planning interventions and outcome measures for clinical trials. Parents completed the generic Child Health Questionnaire for 511 Fontan Cross-Sectiona...

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Veröffentlicht in:Circulation (New York, N.Y.) N.Y.), 2010-01, Vol.121 (1), p.34-42
Hauptverfasser: MCCRINDLE, Brian W, ZAK, Victor, WILLIAMS, Richard V, GERSONY, Welton M, ATZ, Andrew M, SLEEPER, Lynn A, PARIDON, Stephen M, COLAN, Steven D, GEVA, Tal, MAHONY, Lynn, LI, Jennifer S, BREITBART, Roger E, MARGOSSIAN, Renee
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container_issue 1
container_start_page 34
container_title Circulation (New York, N.Y.)
container_volume 121
creator MCCRINDLE, Brian W
ZAK, Victor
WILLIAMS, Richard V
GERSONY, Welton M
ATZ, Andrew M
SLEEPER, Lynn A
PARIDON, Stephen M
COLAN, Steven D
GEVA, Tal
MAHONY, Lynn
LI, Jennifer S
BREITBART, Roger E
MARGOSSIAN, Renee
description Patients after the Fontan procedure are at risk for suboptimal functional health status, and associations with laboratory measures are important for planning interventions and outcome measures for clinical trials. Parents completed the generic Child Health Questionnaire for 511 Fontan Cross-Sectional Study patients 6 to 18 years of age (61% male). Associations of Child Health Questionnaire Physical and Psychosocial Functioning Summary Scores (FSS) with standardized measurements from prospective exercise testing, echocardiography, magnetic resonance imaging, and measurement of brain natriuretic peptide were determined by regression analyses. For exercise variables for maximal effort patients only, the final model showed that higher Physical FSS was associated only with higher maximum work rate, accounting for 9% of variation in Physical FSS. For echocardiography, lower Tei index (particularly for patients with extracardiac lateral tunnel connections), lower indexed end-systolic volume, and the absence of atrioventricular valve regurgitation for patients having Fontan procedure at age
doi_str_mv 10.1161/CIRCULATIONAHA.109.869396
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For magnetic resonance imaging, ratio of lower mass to end-diastolic volume and midquartiles of indexed end-systolic volume (nonlinear) were associated with higher Physical FSS, accounting for 11% of variation. Lower brain natriuretic peptide was significantly but weakly associated with higher Physical FSS (1% of variation). Significant associations for Psychosocial FSS with laboratory measures were fewer and weaker than for Physical FSS. In relatively healthy Fontan patients, laboratory measures account for a small proportion of the variation in functional health status and therefore may not be optimal surrogate end points for trials of therapeutic interventions.</description><identifier>ISSN: 0009-7322</identifier><identifier>EISSN: 1524-4539</identifier><identifier>DOI: 10.1161/CIRCULATIONAHA.109.869396</identifier><identifier>PMID: 20026781</identifier><identifier>CODEN: CIRCAZ</identifier><language>eng</language><publisher>Hagerstown, MD: Lippincott Williams &amp; Wilkins</publisher><subject>Adolescent ; Biological and medical sciences ; Blood and lymphatic vessels ; Blood coagulation ; Cardiac Volume ; Cardiology. Vascular system ; Child ; Cross-Sectional Studies ; Diseases of the peripheral vessels. Diseases of the vena cava. 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Parents completed the generic Child Health Questionnaire for 511 Fontan Cross-Sectional Study patients 6 to 18 years of age (61% male). Associations of Child Health Questionnaire Physical and Psychosocial Functioning Summary Scores (FSS) with standardized measurements from prospective exercise testing, echocardiography, magnetic resonance imaging, and measurement of brain natriuretic peptide were determined by regression analyses. For exercise variables for maximal effort patients only, the final model showed that higher Physical FSS was associated only with higher maximum work rate, accounting for 9% of variation in Physical FSS. For echocardiography, lower Tei index (particularly for patients with extracardiac lateral tunnel connections), lower indexed end-systolic volume, and the absence of atrioventricular valve regurgitation for patients having Fontan procedure at age &lt;2 years were associated with higher Physical FSS, accounting for 14% of variation in Physical FSS. For magnetic resonance imaging, ratio of lower mass to end-diastolic volume and midquartiles of indexed end-systolic volume (nonlinear) were associated with higher Physical FSS, accounting for 11% of variation. Lower brain natriuretic peptide was significantly but weakly associated with higher Physical FSS (1% of variation). Significant associations for Psychosocial FSS with laboratory measures were fewer and weaker than for Physical FSS. In relatively healthy Fontan patients, laboratory measures account for a small proportion of the variation in functional health status and therefore may not be optimal surrogate end points for trials of therapeutic interventions.</description><subject>Adolescent</subject><subject>Biological and medical sciences</subject><subject>Blood and lymphatic vessels</subject><subject>Blood coagulation</subject><subject>Cardiac Volume</subject><subject>Cardiology. 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For magnetic resonance imaging, ratio of lower mass to end-diastolic volume and midquartiles of indexed end-systolic volume (nonlinear) were associated with higher Physical FSS, accounting for 11% of variation. Lower brain natriuretic peptide was significantly but weakly associated with higher Physical FSS (1% of variation). Significant associations for Psychosocial FSS with laboratory measures were fewer and weaker than for Physical FSS. In relatively healthy Fontan patients, laboratory measures account for a small proportion of the variation in functional health status and therefore may not be optimal surrogate end points for trials of therapeutic interventions.</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams &amp; Wilkins</pub><pmid>20026781</pmid><doi>10.1161/CIRCULATIONAHA.109.869396</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record>
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subjects Adolescent
Biological and medical sciences
Blood and lymphatic vessels
Blood coagulation
Cardiac Volume
Cardiology. Vascular system
Child
Cross-Sectional Studies
Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous
Echocardiography
Exercise Test
Exercise Tolerance - physiology
Female
Fontan Procedure
Health Status
Heart Defects, Congenital - surgery
Humans
Investigative techniques, diagnostic techniques (general aspects)
Magnetic Resonance Imaging
Male
Medical sciences
Natriuretic Peptide, Brain - blood
Postoperative Complications - diagnostic imaging
Postoperative Complications - pathology
Postoperative Complications - physiopathology
Surveys and Questionnaires
Ventricular Dysfunction - diagnostic imaging
Ventricular Dysfunction - pathology
Ventricular Dysfunction - physiopathology
title Laboratory Measures of Exercise Capacity and Ventricular Characteristics and Function Are Weakly Associated With Functional Health Status After Fontan Procedure
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