Comparison of low level of pregnancy-associated plasma protein - A between first and early second trimester of pregnancy in intrauterine growth restriction

Zobaida Sultana Susan; Surayea Bulbul; Khadija Rahman Shilpi; Abu Nayeem; Sayeeda Pervin; Ayesha Siddika Purabi; Salma Rouf

doi:10.18203/2320-1770.ijrcog20253067

Authors

Zobaida Sultana Susan Department of Obstetrics and Gynaecology, Shaheed Suhrawardy Medical College and Hospital, Dhaka, Bangladesh
Surayea Bulbul Department of Obstetrics and Gynaecology, Shaheed Suhrawardy Medical College and Hospital, Dhaka, Bangladesh
Khadija Rahman Shilpi Department of Obstetrics and Gynaecology, Shaheed Suhrawardy Medical College and Hospital, Dhaka, Bangladesh
Abu Nayeem Department of Neurology, Rajshahi Medical College, Rajshahi, Bangladesh
Sayeeda Pervin Department of Obstetrics and Gynaecology, Dhaka Medical College Hospital, Dhaka, Bangladesh
Ayesha Siddika Purabi Department of Obstetrics and Gynaecology, Dhaka Medical College Hospital, Dhaka, Bangladesh
Salma Rouf Department of Obstetrics and Gynaecology, Dhaka Medical College Hospital, Dhaka, Bangladesh

DOI:

https://doi.org/10.18203/2320-1770.ijrcog20253067

Keywords:

Intrauterine growth restriction, Pregnancy associated plasma protein-A, Trimester comparison

Abstract

Background: Intrauterine growth restriction (IUGR) is the failure of the fetus to reach its growth potential due to pathological factors, most commonly placental dysfunction and is a major contributor to perinatal morbidity and mortality worldwide. This study compares low maternal serum PAPP-A levels in the first and early second trimesters to predict IUGR risk. The aim of the study was to compare low levels of Pregnancy-Associated Plasma Protein-A (PAPP-A) between the first and early second trimesters of pregnancy in relation IUGR.

Methods: This prospective cohort study was conducted at the Department of Obstetrics and Gynecology, Dhaka Medical College Hospital in 2020, including 186 pregnant women (6–12 and 13–20 weeks gestation) to assess PAPP-A’s predictive value for IUGR. Eligible healthy singleton pregnancies underwent blood PAPP-A testing and serial ultrasounds with Doppler. IUGR was diagnosed by fetal measurements and Doppler, with low PAPP-A defined as <0.5 MoM. Data analysis used SPSS with ROC curves.

Results: Most participants were aged 26–29 years. IUGR occurred in 17 (Group A) and 19 (Group B), with low PAPP-A in 12 and 13 cases, respectively. Low PAPP-A significantly predicted IUGR (RR: 10.73 and 9.03, p<0.001). Diagnostic performance was high in both trimesters (AUC>0.85, sensitivity>89%, specificity>69%). Serum PAPP-A is a reliable early predictor of IUGR.

Conclusions: Low maternal serum PAPP-A levels in early pregnancy moderately predict IUGR, with comparable accuracy in both first and early second trimesters.

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References

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