Determinants of body weight gain and association with neurodevelopmental outcome in infants operated for congenital heart disease.
The aim of this prospective study was to examine the determinants of growth failure and the association with neurodevelopmental outcome in infants undergoing open-heart surgery. In 107 infants undergoing open-heart surgery for congenital heart disease (CHD), we evaluated weight at birth, at surgery, and at one year of age (expressed as z-scores). Neurodevelopmental status was assessed before surgery and at one year of age. Median age at surgery was 3.9 months (range: 0.1-10.2). Mean [+/-standard deviation (S.D.)] weight z-score at birth was -0.27 (+/-1.45), before surgery -1.34 (+/-1.45) (P<0.001 vs. birth weight), and at one year -0.86 (+/-1.35), (P<0.001 vs. weight at surgery). Poor preoperative weight (<10th percentile) was associated with genetic disorders [odds ratio (OR) 5.9, P<0.001], preoperative neurological abnormalities (OR 3.41, P<0.05), and older age at surgery (OR 1.01, P<0.05). Weight <10th percentile at one year was associated with the same factors as poor preoperative weight, however, also with risk adjustment for congenital heart surgery-1 (RACHS) score >3 (OR 3.22, P<0.05). Neurodevelopmental outcome at one year was not determined by growth failure. In conclusion, impaired body weight gain before surgery is followed by a catch-up growth after surgery. However, there is no relationship to neurodevelopmental outcome. Genetic comorbidity is the most significant factor for poor weight gain.
Knirsch
Walter
W
Division of Pediatric Cardiology, University Children's Hospital Zurich, Zurich, Switzerland. walter.knirsch@kispi.uzh.ch
Zingg
Walter
W
Bernet
Vera
V
Balmer
Christian
C
Dimitropoulos
Anastasia
A
Prêtre
René
R
Bauersfeld
Urs
U
Latal
Bea
B
D000367:Age Factors; D001724:Birth Weight; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D002657:Child Development; D002658:Developmental Disabilities / Q000209:etiology* / Q000235:genetics / Q000503:physiopathology; D005260:Female; D030342:Genetic Diseases, Inborn / Q000150:complications / Q000503:physiopathology; D006130:Growth Disorders / Q000209:etiology* / Q000235:genetics / Q000503:physiopathology; D006330:Heart Defects, Congenital / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D016015:Logistic Models; D008297:Male; D009420:Nervous System / Q000254:growth & development*; D016017:Odds Ratio; D011446:Prospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D016896:Treatment Outcome; D015430:Weight Gain / Q000235:genetics