Iris Morag1, Daniel Yakubovich1, Orly Stern1, Maya Siman-Tov2, Irit Schushan-Eisen1, Tzipi Strauss1, Michal Simchen3. 1. Department of Neonatology, The Edmond and Lily Safra Children's Hospital, Chaim Sheba Medical Center, Ramat Gan, Tel HaShomer, Israel. 2. Israel National Center for Trauma and Emergency Medicine, Gertner Institute for Epidemiology and Public Health Policy, Ramat Gan, Tel HaShomer, Israel. 3. Department of Obstetrics and Gynecology, Chaim Sheba Medical Center, Ramat Gan, Tel HaShomer, Israel.
Abstract
AIM: The aim of the study is to examine whether baseline serum Mg concentration has an impact on short-term and long-term outcomes in preterm infants exposed antenatally to MgSO4. METHODS: Participants included all infants admitted to the neonatal intensive care unit at <32 weeks of gestational age. Infant serum Mg concentration (iMgC) was examined immediately after birth in those exposed to maternal MgSO4. Data for short-term outcomes were collected from the infants' computerised charts. Neurodevelopmental outcomes at 6-12 months corrected age were assessed using the Griffiths Mental Developmental Scales. RESULTS: Of 197 eligible infants, 145 were exposed to MgSO4. Baseline iMgC was available for 88 infants. Mean iMgC was 3.5 ± 0.88 mg/dL (1.6-5.7 mg/dL). Baseline iMgC was not associated with an increased risk for neither early morbidities nor adverse long-term outcome. However, iMgC above the mean (>3.5 mg/dL) was associated with significantly lower scores on locomotor (P = 0.016) and personal-social (0.041) scales in the first year of life. CONCLUSIONS: In a cohort of preterm infants antenatally exposed to MgSO4, elevated baseline iMgC (>3.5 mg/dL) was associated with lower locomotor scores. Further research is needed in order to study the relationship between supra-physiologic iMgC and its effect on the developing brain.
AIM: The aim of the study is to examine whether baseline serum Mg concentration has an impact on short-term and long-term outcomes in preterm infants exposed antenatally to MgSO4. METHODS:Participants included all infants admitted to the neonatal intensive care unit at <32 weeks of gestational age. Infant serum Mg concentration (iMgC) was examined immediately after birth in those exposed to maternal MgSO4. Data for short-term outcomes were collected from the infants' computerised charts. Neurodevelopmental outcomes at 6-12 months corrected age were assessed using the Griffiths Mental Developmental Scales. RESULTS: Of 197 eligible infants, 145 were exposed to MgSO4. Baseline iMgC was available for 88 infants. Mean iMgC was 3.5 ± 0.88 mg/dL (1.6-5.7 mg/dL). Baseline iMgC was not associated with an increased risk for neither early morbidities nor adverse long-term outcome. However, iMgC above the mean (>3.5 mg/dL) was associated with significantly lower scores on locomotor (P = 0.016) and personal-social (0.041) scales in the first year of life. CONCLUSIONS: In a cohort of preterm infants antenatally exposed to MgSO4, elevated baseline iMgC (>3.5 mg/dL) was associated with lower locomotor scores. Further research is needed in order to study the relationship between supra-physiologic iMgC and its effect on the developing brain.
Authors: Emily Shepherd; Rehana A Salam; Deepak Manhas; Anne Synnes; Philippa Middleton; Maria Makrides; Caroline A Crowther Journal: PLoS Med Date: 2019-12-06 Impact factor: 11.069