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Updated: Mar 19, 2026

Transcutaneous Microcirculatory Imaging in Preterm Neonates
Published on: December 31, 2015
[A follow-up on first-year growth and development of 61 very low birth weight preterm infants]
Ying Deng1, Fei Xiong, Meng-Meng Wu
1Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China. 506742295@qq.com.
Insights
Very low birth weight (VLBW) preterm infants show significant growth deviations early on. A high percentage of these infants experience abnormal development in their first year, with small-for-gestational-age status being a key risk factor.
Area of Science:
- Neonatalogy and Pediatrics
- Developmental Biology
- Public Health
Context:
- Preterm birth, particularly very low birth weight (VLBW), presents significant challenges for infant development.
- Early monitoring of physical growth and psychomotor development is crucial for identifying potential issues in VLBW infants.
Purpose:
- To investigate the physical growth and psychomotor development of very low birth weight (VLBW) preterm infants during their first year of life.
- To identify factors influencing the growth and development trajectories of these vulnerable infants.
Summary:
- This study monitored 61 VLBW preterm infants for 12 months using Z-scores for growth and the Denver Development Screen Test (DDST) for development.
- While median growth parameters remained above -1 SD, specific incidence rates for various growth deviations were noted by 40 weeks corrected age.
- By one year, 25% of infants had abnormal developmental quotients (DQ), with small-for-gestational-age (SGA) infants showing a higher incidence of abnormal DQ and being an independent risk factor for retarded growth.
Impact:
- VLBW infants exhibit notable growth deviations within the first three months of corrected age.
- The high prevalence of abnormal developmental quotients (DQ) identified by DDST highlights the need for ongoing developmental surveillance in VLBW populations.
- Findings underscore the critical role of SGA status as a predictor of impaired growth in VLBW preterm infants, informing targeted interventions.
Objective:
To investigate the physical growth and psychomotor development of very low birth weight (VLBW) preterm infants in the first year after birth and related influencing factors.
Methods:
A total of 61 VLBW preterm infants received growth and development monitoring for 12 months. Z score was used to evaluate parameters for physical growth, and Denver Development Screen Test (DDST) was used for development screening.
Results:
Among the 61 VLBW preterm infants, 27 (44.3%) were small-for-gestational-age (SGA) infants, and 34 (55.7%) were appropriate-for-gestational-age (AGA) infants. During the 1-year follow-up, the median weight-for-age Z-score (WAZ), height-for-age Z-score (HAZ), head circumference-for-age Z-score (HCZ), and weight-for-height Z score (WHZ) were >-1 SD in all age groups. The peaks of body mass index-for-age Z-score (BAZ) and WHZ appeared at 1 month of corrected age. At a corrected age of 40 weeks, the incidence rates of underweight, growth retardation, emaciation, microcephalus, overweight, and obesity were 15%, 16%, 11%, 13%, 20%, and 10%, respectively. Compared with those with a corrected age of 40 weeks, the infants with a corrected age of 6 months or 9-12 months had a significantly reduced incidence rate of overweight (3%) (P<0.05). Up to 1 year after birth, 15 infants (25%) had abnormal developmental quotient (DQ). The SGA group had a significantly higher incidence rate of abnormal DQ than the AGA group (P<0.05). SGA was the independent risk factor for retarded growth in the first year after birth in VLBW preterm infants.
Conclusions:
VLBW preterm infants experience an obvious growth deviation within 3 months of corrected age. Within the first year after birth, the proportion of infants with abnormal DQ screened by DDST is high.
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