The group with polyhydramnios was divided into two groups according to whether the CPR value was below 1.08 or 1.08 and above

The control group included low-risk pregnant women who did not have polyhydramnios. Women who had chromosomal or anatomical abnormalities, multiple pregnancies, oligohydramnios (AFI 5 cm), severe polyhydramnios, fetal growth restriction, elective cesarean section (CS), pre-existing conditions (hypertension, diabetes, thrombophilia), or obstetric complications (gestational hypertension, preeclampsia, gestational diabetes) were excluded.

In all cases, the measurement, including UA PI and MCA PI, was measured with a 6-4 MHz convex transabdominal probe. All measurements were made by an obstetrician (Ş.D.) with 28 years of experience. Doppler measurements were collected from the proximal third of the MCA and the free-floating segment of the umbilical cord, ensuring that the angle of insonation was as close to zero as feasible and that fetal movements were absent

adverse perinatal outcome: The week of birth and type of birth of all pregnant women participating in the study will be recorded. Premature birth rates and reasons for cesarean section will be questioned in all pregnant women. Birth weights of all neonates, 1st and 5th minute Apgar scores, and admissions to the neonatal intensive care unit will be recorded. Necessary statistical evaluation will be made in all healthy and polyhydramnios cases.