Pregnancy hypertension · 2021
Platelet counts during normal pregnancies and pregnancies complicated with hypertensive disorders.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод в очереди
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Ushida Takafumi, Kotani Tomomi, Moriyama Yoshinori, Imai Kenji, Nakano-Kobayashi Tomoko, Kinoshita Fumie, Nakamura Noriyuki, Iitani Yukako, Yoshida Shigeru, Yamashita Mamoru, Kajiyama Hiroaki
Аннотация
OBJECTIVES: To determine the trajectories of platelet counts and the prevalence of gestational thrombocytopenia (<150 × 109/L) during normal pregnancies and pregnancies with complications, such as hypertensive disorders of pregnancy (HDP), preeclampsia, and fetal growth restriction (FGR).
STUDY DESIGN: A multicenter retrospective study was conducted using laboratory data on women who delivered term singletons at 11 primary maternity care units between 2011 and 2018 (n = 35,045), and non-pregnant women who underwent a medical check-up between 2016 and 2019 (n = 61,189). After 1:1 matching, 28,073 pregnant women and 28,073 non-pregnant women were selected for analysis.
MAIN OUTCOMES MEASURES: The trajectories of platelet counts and prevalence of gestational thrombocytopenia were evaluated in normal pregnant women, pregnant women with complications, and non-pregnant women.
RESULTS: The platelet counts declined throughout pregnancy, with the nadir occurring on postpartum day 1. The platelet counts recovered to the level of the non-pregnant state at postpartum 2-7 days. The mean platelet counts at postpartum day 1 decreased by an estimated 19.8% and 9.7% compared to those in the non-pregnant state and first trimester, respectively. The prevalence of gestational thrombocytopenia in normal pregnant women at 37-41 gestational weeks and in pregnant women with complications of HDP, preeclampsia, and FGR were 6.1%, 7.3%, 17.5%, and 7.7%, respectively.
CONCLUSION: Platelet counts declined throughout pregnancy and recovered to the level of the non-pregnant state in the early postpartum period. Gestational thrombocytopenia is common during normal pregnancy, and its prevalence is significantly higher in women with preeclampsia.
STUDY DESIGN: A multicenter retrospective study was conducted using laboratory data on women who delivered term singletons at 11 primary maternity care units between 2011 and 2018 (n = 35,045), and non-pregnant women who underwent a medical check-up between 2016 and 2019 (n = 61,189). After 1:1 matching, 28,073 pregnant women and 28,073 non-pregnant women were selected for analysis.
MAIN OUTCOMES MEASURES: The trajectories of platelet counts and prevalence of gestational thrombocytopenia were evaluated in normal pregnant women, pregnant women with complications, and non-pregnant women.
RESULTS: The platelet counts declined throughout pregnancy, with the nadir occurring on postpartum day 1. The platelet counts recovered to the level of the non-pregnant state at postpartum 2-7 days. The mean platelet counts at postpartum day 1 decreased by an estimated 19.8% and 9.7% compared to those in the non-pregnant state and first trimester, respectively. The prevalence of gestational thrombocytopenia in normal pregnant women at 37-41 gestational weeks and in pregnant women with complications of HDP, preeclampsia, and FGR were 6.1%, 7.3%, 17.5%, and 7.7%, respectively.
CONCLUSION: Platelet counts declined throughout pregnancy and recovered to the level of the non-pregnant state in the early postpartum period. Gestational thrombocytopenia is common during normal pregnancy, and its prevalence is significantly higher in women with preeclampsia.