Longitudinal assessment of renal size and function in extremely low birth weight children at 7 and 11 years of age

Background There are a lack of studies describing a longitudinal association between preterm delivery and renal complications later in life. We assessed renal size and function in preterm infants born with extremely low birth weight (ELBW) during 4 years of follow-up, comparing these parameters to a...

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Bibliographic Details
Published in:Pediatric nephrology (Berlin, West) West), 2016-11, Vol.31 (11), p.2119-2126
Main Authors: Starzec, Katarzyna, Klimek, Małgorzata, Grudzień, Andrzej, Jagła, Mateusz, Kwinta, Przemko
Format: Article
Language:English
Subjects:
Birth weight
Birth Weight - physiology
Child
Creatinine
Cross-Sectional Studies
Female
Follow-Up Studies
Gestational age
Growth
Humans
Infant, Extremely Low Birth Weight - physiology
Infant, Extremely Premature - physiology
Infant, Newborn
Infants (Premature)
Kidney - diagnostic imaging
Kidney - physiology
Kidney Function Tests
Kidneys
Longitudinal Studies
Male
Medical examination
Medicine
Medicine & Public Health
Nephrology
Newborn babies
Organ Size - physiology
Original
Original Article
Pediatrics
Physiological aspects
Polish Americans
Premature babies
Questionnaires
Risk Factors
Ultrasonic imaging
Ultrasonography
Ultrasonography, Doppler, Color
Urology
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Summary:Background There are a lack of studies describing a longitudinal association between preterm delivery and renal complications later in life. We assessed renal size and function in preterm infants born with extremely low birth weight (ELBW) during 4 years of follow-up, comparing these parameters to age-matched children born full term (term controls). Methods The results of selected renal laboratory tests [levels of cystatin C, creatinine, blood urea nitrogen (BUN)] and of renal ultrasound evaluations were compared between the ELBW group and the term control group at age 7 and 11 years. Results The study population consisted of 64 children born with ELBW (ELBW children) who had been recruited at birth and 36 children born at term (term children) who took part in both follow-up assessments. Renal ultrasound examination revealed a significantly smaller renal volume in the 7- and 11-year-old ELBW children compared to the term controls [right kidney volume: 50.8 vs. 61.2 ml/m 2 , respectively, at 7 years ( p
ISSN:0931-041X
1432-198X
DOI:10.1007/s00467-016-3413-6