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Ritschl, E; Wehmeijer, K; DE Terlizzi, F; Wipfler, E; Cadossi, R; Douma, D; Urlesberger, B; Müller, W.
Assessment of skeletal development in preterm and term infants by quantitative ultrasound.
Pediatr Res. 2005; 58(2):341-346 Doi: 10.1203/01.PDR.0000169996.25179.EC [OPEN ACCESS]
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Leading authors Med Uni Graz: Ritschl Ewald
Co-authors Med Uni Graz: Müller Wilhelm; Urlesberger Berndt
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Abstract:: Assessment of skeletal development using a nonionizing method would be desirable in critically ill preterm infants. We investigated the second metacarpus by quantitative ultrasound (QUS). Cross-sectional data were collected in 132 preterm or term infants measured within 24 h from birth and in 142 term infants up to the age of 18 mo. Longitudinal data were collected in 150 preterm infants up to the age of 14 mo. Cross-sectional data were used to devise reference curves for metacarpal speed of sound (mcSOS) and metacarpal bone transmission time (mcBTT). Both parameters increase during the last trimester of gestation. After birth, mcSOS declines up to the 6 mo and then increases up to 18 mo of life. McBTT values remain stable after birth. At birth, QUS values of preterm infants are lower than those observed at birth in term infants. In the longitudinal study, mcSOS showed a trend similar to that observed among term infants, nevertheless, values are lower up to 4-6 mo of life. Among preterm infants, mcBTT increases until it reaches values observed in term infants. Preterm infants in their first months of life have lower QUS values compared with term infants of same weight or length. This study demonstrates that it is possible to follow skeletal development and maturation by QUS in preterm infants. More specifically, the mcBTT values may provide information on bone tissue that is independent of length and weight of the preterm infant. The method here described is safe, repeatable, and reliable.
Find related publications in this database (using NLM MeSH Indexing): Birth Weight -; Body Height -; Body Weight -; Bone Development -; Bone and Bones - ultrasonography; Densitometry, X-Ray - ultrasonography; Female - ultrasonography; Gestational Age - ultrasonography; Humans - ultrasonography; Infant, Newborn - ultrasonography; Infant, Premature - ultrasonography; Male - ultrasonography; Time Factors - ultrasonography