4.2 Article

The clinical utility of D-dimer/platelet count ratio in pregnant women

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JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
卷 35, 期 18, 页码 3602-3611

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TAYLOR & FRANCIS LTD
DOI: 10.1080/14767058.2020.1833322

关键词

Hypertension; pregnancy; D-dimer; gestational hypertensive disorders; Preeclampsia

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This retrospective study found that the DD/PLT ratio helps differentiate preeclampsia, normal pregnancy, and gestational hypertension. Large-scale studies are needed to confirm its clinical utility and determine more appropriate cutoff values for widespread use.
Objective We performed a retrospective study to assess the clinical utility of a new index, D-dimer/platelet count (DD/PLT) ratio, in discriminating preeclampsia from normal pregnancy and gestational hypertension during third trimester, compared to the biomarkers currently used, such as D-dimer (DD), platelet (PLT), lymphocyte (LIN) and neutrophil (NEU) counts, fibrinogen (FIB), PLT/NEU, NEU/LIN and PLT/LIN ratios. Study design We retrospectively included 213 subjects. Of them, 163 and 50 were singleton pregnant and healthy non-pregnant women, respectively. Among pregnant women, 105 had normal pregnancy, 33 had gestational hypertension, and 25 had preeclampsia. Results Using Receiver Operating Curve (ROC) analysis, DD/PLT ratio showed significant higher area under the curve (AUC) (0.90; 95% confidence interval (CI) 0.84-0.95) in discriminating preeclampsia from normal pregnancy compared to those of DD, NEU, FIB, LIN, PLT/NEU, NEU/LIN and PLT/LIN ratios (p < .03). In discriminating preeclampsia from gestational hypertension, the DD/PLT AUC (0.90; 95% CI 0.79-0.96) was significantly higher than those of DD, NEU, FIB, LIN, NEU/LIN and PLT/LIN ratios (p < .03), and not statistically different from those of PLT (p = .22) and PLT/NEU ratio (p = .46). Conclusions This study shows that DD/PLT ratio helps to discriminate preeclampsia from normal pregnancy and gestational hypertension. Large-scale studies are needed to verify its clinical usefulness, and to suggest more appropriate cutoff values for a widespread use.

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