ArticleJornal de pediatria
Renal volume of five-year-old preterm children are not different than full-term controls.
Article in Jornal de pediatria. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Reduced kidney function in very-low-birth-weight preterm infants at preschool age.Pediatric nephrology (Berlin, Germany) · 2025Article
- When will the Glomerular Filtration Rate in Former Preterm Neonates Catch up with Their Term Peers?Pharmaceutical research · 2024Article
- Body surface area-based kidney length percentiles misdiagnose small kidneys in children with overweight/obesity.Pediatric nephrology (Berlin, Germany) · 2023Article
- Preterm Birth, Kidney Function and Cardiovascular Disease in Children and Adolescents.Children (Basel, Switzerland) · 2022Review
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8 authors.
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Abstract
objectiveIn previous studies, smaller renal volumes were reported in prematurely born infants, however, these renal volumes were not corrected for body surface area, the main determinant of renal size. Given the rapid growth of the renal cortex after premature birth, the authors hypothesized that corrected volumes would not differ from healthy controls.
methodsAmbispective cohort study with prospective follow-up of prematurely born babies in a large specialized center and retrospectively recruited healthy control group. Children were assessed for renal length and renal volumes at age 5 by three independent ultrasonographers. Detailed anthropometry, blood pressure and renal function were also obtained. Age independent z-scores were calculated for all parameters and compared using descriptive statistics.
resultsEighty-nine premature study participants (median 32 weeks gestational age) and 33 healthy controls (median 38 weeks gestational age) were studied. Study participants did not differ in age, sex, Afro-Colombian descent, height, blood pressure, serum creatinine, or new Schwartz eGFR. Premature study participants had a significantly lower weight (17.65 ± 2.93 kg) than controls (19.05 ± 2.81 kg, p = 0.0072) and lower body surface area. The right renal volumes were significantly smaller (39.4 vs 43.4 mL), but after correction for body surface area, the renal volume and renal length z-scores were identical for both kidneys (mean right kidney -0.707 vs -0.507; mean left kidney -0.498 vs -0.524, respectively).
conclusionRenal volumes need to be corrected to body surface area. After correction for body surface area, 5-year-old healthy and prematurely born children have comparable renal volumes.
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