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  • Title: Gestational age at preterm premature rupture of membranes: a risk factor for neonatal white matter damage.
    Author: Locatelli A, Ghidini A, Paterlini G, Patanè L, Doria V, Zorloni C, Pezzullo JC.
    Journal: Am J Obstet Gynecol; 2005 Sep; 193(3 Pt 2):947-51. PubMed ID: 16157092.
    Abstract:
    OBJECTIVE: Gestational age at delivery and spontaneous prematurity are independent risk factors for white matter damage (WMD). However, among infants delivered spontaneously after preterm premature rupture of membranes (PPROM), latency of PPROM has been inconsistently correlated with risk of WMD. We have explored whether gestational age at membrane rupture is independently associated with WMD. STUDY DESIGN: Using a cohort of 196 liveborn singleton nonanomalous neonates born at 24.0 to 33.6 weeks from January 1993 to December 2002 after pPROM and who survived 7 days, we compared the characteristics of those who developed WMD (n = 15) with those who did not (n = 181) using Fisher exact test, Student t test, and logistic regression analysis, with a 2-tailed P < .05 or odds ratio (OR) with 95% CI not inclusive of the unity considered significant. RESULTS: Stepwise logistic regression analysis demonstrated that gestational age at PPROM (P < .001, OR 0.79) was significantly associated with WMD. The association was independent of corticosteroid administration (P = .016), latency interval (P = .69), gestational age at delivery (P = .99), and birth weight (P = .62). CONCLUSION: Among premature infants born at <34 weeks after pPROM, gestational age at diagnosis is independently associated with WMD.
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