Mohamed Laban1, Ghada M Mansour2, Mohammed S E Elsafty2, Alaa S Hassanin2, Sahar S EzzElarab3. 1. Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt. Electronic address: laban63@yahoo.com. 2. Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt. 3. Early Cancer Detection Unit, Ain Shams Maternity Hospital, Cairo, Egypt.
Abstract
OBJECTIVE: To develop reference cutoff values for mean fetal lung volume (FLV) and pulmonary artery resistance index (PA-RI) for prediction of neonatal respiratory distress syndrome (RDS) in low-risk term pregnancies. METHODS: As part of a cross-sectional study, women aged 20-35 years were enrolled and admitted to a tertiary hospital in Cairo, Egypt, for elective repeat cesarean at 37-40 weeks of pregnancy between January 1, 2012, and July 31, 2013. FLV was calculated by virtual organ computer-aided analysis, and PA-RI was measured by Doppler ultrasonography before delivery. RESULTS: A total of 80 women were enrolled. Neonatal RDS developed in 11 (13.8%) of the 80 newborns. Compared with neonates with RDS, healthy neonates had significantly higher FLVs (P<0.001) and lower PA-RIs (P<0.001). Neonatal RDS is less likely with FLV of at least 32 cm(3) or PA-RI less than or equal to 0.74. Combining these two measures improved the accuracy of prediction. CONCLUSION: The use of either FLV or PA-RI predicted neonatal RDS. The predictive value increased when these two measures were combined.
OBJECTIVE: To develop reference cutoff values for mean fetal lung volume (FLV) and pulmonary artery resistance index (PA-RI) for prediction of neonatal respiratory distress syndrome (RDS) in low-risk term pregnancies. METHODS: As part of a cross-sectional study, women aged 20-35 years were enrolled and admitted to a tertiary hospital in Cairo, Egypt, for elective repeat cesarean at 37-40 weeks of pregnancy between January 1, 2012, and July 31, 2013. FLV was calculated by virtual organ computer-aided analysis, and PA-RI was measured by Doppler ultrasonography before delivery. RESULTS: A total of 80 women were enrolled. Neonatal RDS developed in 11 (13.8%) of the 80 newborns. Compared with neonates with RDS, healthy neonates had significantly higher FLVs (P<0.001) and lower PA-RIs (P<0.001). Neonatal RDS is less likely with FLV of at least 32 cm(3) or PA-RI less than or equal to 0.74. Combining these two measures improved the accuracy of prediction. CONCLUSION: The use of either FLV or PA-RI predicted neonatal RDS. The predictive value increased when these two measures were combined.
Authors: Yasmin Essameldin Abdalla Khalifa; Mona M Aboulghar; Soha T Hamed; Rania H Tomerak; Ahmed M Asfour; Eman F Kamal Journal: Br J Radiol Date: 2021-11-10 Impact factor: 3.039