The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2011
Correlation between fetal heart rate reactivity and mortality and severe neurological morbidity in extremely low birth weight infants.
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Eventov-Friedman S, Shinwell E S, Barnea E, Flidel-Rimon O, Juster-Reicher A, Levy R
Аннотация
OBJECTIVE: To determine the correlation between specific fetal heart rate (FHR) abnormalities and the incidence of death, severe (grade 3-4) intraventricular hemorrhage (IVH) and periventricular echogenicity (PVE) in extremely low birth weight infants (ELBW) within the first 4 days after birth.
METHODS: The study included live-born ELBW infants ≤ 30 weeks' gestation who were born in 2000-2007 at Kaplan Medical Center, Rehovot, Israel, and, who had FHR monitoring during the 24 h before delivery and cranial ultrasound during the first 4 days of life. FHR pattern was analyzed for the presence of baseline rate, reactivity, variability and decelerations.
RESULTS: 96 infants with mean birth weight 757 ± 150 g and mean gestational age 25.8 ± 1.5 weeks were included. By 4 days of life, 23/96 (24%) died, 17/96 (18%) developed severe IVH and 31/96 (32%) had PVE. Absence of reactivity was significantly associated with increase in both death (p = 0.02, OR 3.45, 95% CI: 1.22-9.47 and severe IVH (p = 0.029, OR 3.33, 95% CI: 1.25-10) but not with PVE. Other FHR parameters were not associated with adverse outcome.
CONCLUSION: These results suggest that FHR reactivity may be of value in predicting short-term outcome in ELBW infants. This may be helpful in counseling parents with imminent extremely preterm birth.
METHODS: The study included live-born ELBW infants ≤ 30 weeks' gestation who were born in 2000-2007 at Kaplan Medical Center, Rehovot, Israel, and, who had FHR monitoring during the 24 h before delivery and cranial ultrasound during the first 4 days of life. FHR pattern was analyzed for the presence of baseline rate, reactivity, variability and decelerations.
RESULTS: 96 infants with mean birth weight 757 ± 150 g and mean gestational age 25.8 ± 1.5 weeks were included. By 4 days of life, 23/96 (24%) died, 17/96 (18%) developed severe IVH and 31/96 (32%) had PVE. Absence of reactivity was significantly associated with increase in both death (p = 0.02, OR 3.45, 95% CI: 1.22-9.47 and severe IVH (p = 0.029, OR 3.33, 95% CI: 1.25-10) but not with PVE. Other FHR parameters were not associated with adverse outcome.
CONCLUSION: These results suggest that FHR reactivity may be of value in predicting short-term outcome in ELBW infants. This may be helpful in counseling parents with imminent extremely preterm birth.