Saudi medical journal · 2022
The effect of fetal gender on the biochemical markers of the first-trimester screening.
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Cokmez Hakan, Yozgat Simge Tezel
Аннотация
OBJECTIVES: To determine the effects of fetal gender on the maternal levels of first-trimester screening biochemical markers, such pregnancy-related plasma protein A (PAPP-A) and beta-human chorionic gonadotropin (β-hCG).
METHODS: In this retrospective study, we assessed 267 cases of singleton pregnancies, who underwent first trimester screening tests and delivered between January 2016 and January 2019 at our hospital. Multiple of median (MoM) levels of PAPP-A and free β-hCG, and the neonatal genders according to the birth records were compared and analyzed. Additionally, patients with small for gestational age (SGA) newborns, preeclampsia, and placental ablation, called ischemic placental diseases, were classified into a separate group and their PAPP-A and free β-hCG MoM values and fetal genders were compared.
RESULTS: There was no significant relationship between the mean values of PAPP-A (1.07±0.6) and free β-hCG (1.23±1.14) and the fetal gender (males: 137, 51.3%; females: 130, 48.7%), respectively (p=0.833; p=0.075). In 41 cases (15.4%) with ischemic placental disease, free β-hCG values was significantly higher in the fetal females (19 cases; 46.3%) than males (22 cases; 53.7%), (1.53±1.02 and 0.77±0.53, respectively), (p=0.004).
CONCLUSION: Pregnancy-related plasma protein A and free β-hCG values were not affected by the fetal gender. However, the significant relationship observed between free β-hCG MoM levels and fetal gender in patients with ischemic placental diseases suggests the need for larger studies on this topic.
METHODS: In this retrospective study, we assessed 267 cases of singleton pregnancies, who underwent first trimester screening tests and delivered between January 2016 and January 2019 at our hospital. Multiple of median (MoM) levels of PAPP-A and free β-hCG, and the neonatal genders according to the birth records were compared and analyzed. Additionally, patients with small for gestational age (SGA) newborns, preeclampsia, and placental ablation, called ischemic placental diseases, were classified into a separate group and their PAPP-A and free β-hCG MoM values and fetal genders were compared.
RESULTS: There was no significant relationship between the mean values of PAPP-A (1.07±0.6) and free β-hCG (1.23±1.14) and the fetal gender (males: 137, 51.3%; females: 130, 48.7%), respectively (p=0.833; p=0.075). In 41 cases (15.4%) with ischemic placental disease, free β-hCG values was significantly higher in the fetal females (19 cases; 46.3%) than males (22 cases; 53.7%), (1.53±1.02 and 0.77±0.53, respectively), (p=0.004).
CONCLUSION: Pregnancy-related plasma protein A and free β-hCG values were not affected by the fetal gender. However, the significant relationship observed between free β-hCG MoM levels and fetal gender in patients with ischemic placental diseases suggests the need for larger studies on this topic.