Trajectories of maternal D-dimer are associated with the risk of developing adverse maternal and perinatal outcomes: A prospective birth cohort study.

Clin Chim Acta

Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Key Laboratory of Women and Children's Critical Disease Research, Fuzhou 350001, China. Electronic address:

Published: March 2023

Objective: To assess the relationships of maternal D-dimer trajectories with the risk of developing adverse maternal and perinatal outcomes (AMPOs).

Methods: A prospective birth cohort study was conducted in China, and 7,095 women who had singleton birth were included. The latent class growth model was used to determine the maternal D-dimer trajectory.

Results: Three maternal D-dimer trajectories were identified: (1) slight increase (43.6%), (2) rapid rise (51.3%), (3) sustained high (5.1%). Compared to pregnant women with a slight increase in D-dimer trajectory, the risk of gestational diabetes mellitus, placenta previa, macrosomia, large for gestational age (LGA), and increased postpartum bleeding was significantly increased in those with a rapid rise trajectory (adjusted OR = 1.22, 2.00, 1.80, and 1.56, adjusted β = 15.92 ∼ 25.1 ml, respectively, P < 0.05), and women with a sustained high trajectory also demonstrated a relatively elevated risk of macrosomia and LGA (adjusted OR = 2.11 and 1.82, respectively, P < 0.05). While the odds of pregnancy-induced hypertension, low birth weight, and small for gestational age in pregnant women with the rapid rise D-dimer trajectory and fetal distress in those with sustained high trajectory exhibited a reduction (adjusted OR = 0.62, 0.38, 0.54, and 0.64, respectively, P < 0.05).

Conclusion: This study highlights the influence of inappropriate maternal D-dimer trajectories on the risk of AMPOs.

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Source
http://dx.doi.org/10.1016/j.cca.2023.117324DOI Listing

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