Abstract

Background: The cerebroplacental ratio is used for assessing fetal well-being and predicting perinatal outcomes in the third trimester of pregnancy. Its integration into antenatal surveillance, along with other Doppler indices and clinical factors, may contribute to improved risk stratification and personalized management strategies to optimize maternal and fetal outcomes. Aims and Objectives: To study the association of Cerebroplacental ratio in third trimester of pregnancy with the Perinatal Outcome Methods: This prospective observational study was conducted in the Department of Radio-diagnosis at Faculty of Medicine and Health Sciences, Budhera, Gurugram on pregnant women with gestational age between 28-40 weeks referred from Department of Obstetrics and Gynaecology for Doppler USG. Results: A total 150 participants were included in the study. The study participant`s mean age was 26.1±4.5 years with 79 participants ≤25 years, 41 participants aged 26-30 years, and 30 participants >30 years old. The mean of gestational age at the time of delivery and USG were 35.1±2.4 weeks and 34.1±2.6 week respectively. The mean BPD, HC, AC, and FL were 8.4±0.7 cm, 30.3±2.3 cm, 28.8±3.2 cm, and 6.5±0.6 cm, respectively. The mean pulsatility index for the middle cerebral artery (MCA) and umbilical artery was 1.5±0.39 and 1.03±0.91, respectively. Out of the 150 participants, 123 had CPR >1 and 27 had CPR <1.Among the participants, 33 were delivered by lower segment cesarean section (LSCS), and 117 were delivered by normal vaginal delivery. Additionally, 22 participants experienced antepartum hemorrhage (APH) or postpartum hemorrhage (PPH). The average birth weight of newborns was 2.8±0.5 kg. Among the participants, 105 newborns were normal, 40 were small for gestational age (SGA), and 5 were large for gestational age (LGA). The mean Apgar score at 1 minute and 5 minutes was 7.9±0.96 and 8.2±0.65, respectively. Furthermore, 42 participants had preterm delivery, and 18 newborns required NICU admission. No statistically significant association was found between mothers' age, gestational age at delivery and CPR.

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