Poryo M, Maas S, Gortner L, Geipel M, Zemlin M, Löffler G, Meyer S. Effects of small for gestational age status on mortality and major morbidities in ≤750 g neonates.
Early Hum Dev 2020;
144:105040. [PMID:
32325371 DOI:
10.1016/j.earlhumdev.2020.105040]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/23/2020] [Accepted: 03/31/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND
Controversy exists regarding the impact of small for gestational age (SGA = birth weight < 10th percentile) status on mortality and major morbidities.
AIM
To assess the effects of SGA on mortality and major morbidities in ≤750 gram (g) neonates.
STUDY DESIGN
Retrospective (01/2005-12/2017), single center study at a tertiary NICU.
SUBJECTS
SGA neonates ≤ 750 g.
OUTCOME
Effect of SGA status on mortality and major morbidities.
RESULTS
183 infants were enrolled. 103 (56.3%) were non-SGA (mean gestational age 25 + 1 weeks ± 9.9 days, mean birth weight 662.6 ± 75.2 g), and 80 (43.7%) SGA (mean gestational age 26 + 6 weeks ± 14.0 days, mean birth weight 543.9 ± 114.7 g). Mortality was 24.1% (non-SGA: 30/103 (29.1%), SGA: 14/80 (17.5%); p = 0.08). Univariable logistic regression analysis revealed a significant protective effect of SGA status on pneumothoraces (OR 0.28, 95%-CI [0.11-0.69]), IVH (≥3) (OR 0.38; 95%-CI [0.15-0.67]), and seizures (OR 0.09, 95%-CI [0.01-0.76]), but NEC (≥2a) occurred more frequently in SGA neonates (p = 0.024). Multiple logistic regression analysis found SGA status to negatively influence ROP (≥3) (OR 2.87, 95%-CI [1.14-7.23]) and need for home monitoring (OR 2.38, 95%-CI [1.05-5.41]). Other major morbidities (IVH, PVL, RDS, BPD, NEC, FIP, sepsis, hearing impairment) and mortality rates were not significantly affected, but distinct organ-specific patterns were seen.
CONCLUSION
SGA had negative effects on the rate of severe ROP and the need for home monitoring, but other major morbidities as well as mortality rates were not significantly affected. In the future, it will be important to delineate underlying pathophysiological mechanisms that contribute to this pattern.
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