BJOG : an international journal of obstetrics and gynaecology · 2004
Obstetric risk factors and persistent increases in brain parenchymal echogenicity in preterm infants.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод в очереди
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Spinillo Arsenio, Chiara Alberto, Bergante Carola, Biancheri Danila, Fabiana DePaoli, Fazzi Elisa
Аннотация
OBJECTIVE: To assess the risk of persistent (>7 days) increases in brain parenchymal echogenicity in preterm infants and their association with known obstetric risk factors.
DESIGN: Case-control study of prospectively collected data.
SETTING: A University hospital in Northern Italy.
POPULATION: Eighty-five singleton infants between 24 and 34 weeks of gestation with a cranial ultrasonographic diagnosis of persistently increased parenchymal echogenicity without development of cystic degeneration, and 170 control infants with negative cranial ultrasonographic findings.
METHODS: A comparison of the prevalence of selected obstetric risk factors between infants with persistent echo-dense lesions and negative controls.
MAIN OUTCOME MEASURES: Odds ratios of persistent echo-dense lesions including first-degree interactions between variables.
RESULTS: After adjusting for birthweight, logistic regression analysis showed that the only factor associated with an increased risk of persistent brain echo-dense lesions in infants was multiple courses of antenatal steroids (OR = 2.14, 95% CI = 1.11-4.15, P= 0.024). In this group, the risk of persistent echo-dense lesions was particularly high in: (i) mothers receiving dexamethasone rather than betamethasone (P value for interaction = 0.015) and (ii) after expectant management of pre-eclampsia or intrauterine growth retardation (P value for interaction = 0.03).
CONCLUSIONS: Multiple doses of antenatal steroids, especially dexamethasone, could influence the prevalence of persistent increases in brain parenchymal echogenicity in preterm infants.
DESIGN: Case-control study of prospectively collected data.
SETTING: A University hospital in Northern Italy.
POPULATION: Eighty-five singleton infants between 24 and 34 weeks of gestation with a cranial ultrasonographic diagnosis of persistently increased parenchymal echogenicity without development of cystic degeneration, and 170 control infants with negative cranial ultrasonographic findings.
METHODS: A comparison of the prevalence of selected obstetric risk factors between infants with persistent echo-dense lesions and negative controls.
MAIN OUTCOME MEASURES: Odds ratios of persistent echo-dense lesions including first-degree interactions between variables.
RESULTS: After adjusting for birthweight, logistic regression analysis showed that the only factor associated with an increased risk of persistent brain echo-dense lesions in infants was multiple courses of antenatal steroids (OR = 2.14, 95% CI = 1.11-4.15, P= 0.024). In this group, the risk of persistent echo-dense lesions was particularly high in: (i) mothers receiving dexamethasone rather than betamethasone (P value for interaction = 0.015) and (ii) after expectant management of pre-eclampsia or intrauterine growth retardation (P value for interaction = 0.03).
CONCLUSIONS: Multiple doses of antenatal steroids, especially dexamethasone, could influence the prevalence of persistent increases in brain parenchymal echogenicity in preterm infants.