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We prospectively evaluated whether combined antenatal corticosteroid and vitamin K administration have any benefit, over and above that of corticosteroid or vitamin K used alone, in reducing the frequency and the degree of PIVH in premature newborns less than 35 weeks' gestation. All of these 280 pregnant women were randomly allocated into five groups according to the in-patient sequence. Group A (vitamin K1 group) including 38 pregnant women (40 newborns) received antenatal intramuscular or intravenously injection of vitamin K1 10 mg per day for 2-7 days. Group B (single dose corticosteroid group) including 57 pregnant women (63 newborns) received antenatal intramuscular or intravenously injection of dexamethasone 10 mg per day for 1 day. Group C (two dose corticosteroid group) including 62 pregnant women (70 newborns) received antenatal intramuscular or intravenously injection of dexamethasone 10 mg per day for 2 days. Group D (combined using dexamethasone and vitamin K1) including 41 pregnant women (44 newborns) received dexamethasone 10 mg per day for 1 day and vitamin K110 mg per day for 2-7 days. Control group, including 82 pregnant women (87 newborns) were received neither dexamethasone nor vitamin K1 injection. The results showed PIVH was diagnosed in 17 of 40 (42.5%) in Group A, 34 of 63 (54.0%) in Group B, 36 of 70 (51.4%) in Group C, 14 of 44 (31.8%) in Group D, and 57 of 87 (65.2%) in control infants (p = 0.004). More infants in the control group had grade III or IV intracranial hemorrhage after birth (p = 0.049). After antenatal supplement of dexamethasone and vitamin K1, both the total incidence of PIVH and the frequency of severe PIVH decreased significantly. The total and severe incidence of PIVH in Group B (single doses dexamethasone) and Group C (two courses dexamethasone) there were no significant difference. It showed that after antenatal supplement of dexamethasone and vitamin K1, both the total incidence of PIVH and the frequency of severe PIVH decreased significantly, and combined antenatal corticosteroid and vitamin K administration have much benefit, over and above that of corticosteroid or vitamin K used alone.

journal of tropical pediatrics

The Combined Antenatal Corticosteroids and Vitamin K Therapy for Preventing Periventricular-Intraventricular Hemorrhage in Premature Newborns less than 35 weeks Gestation