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Platelet reactivity in twin pregnancies

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Title: Platelet reactivity in twin pregnancies
Authors: Umazume, Takeshi Browse this author →KAKEN DB
Yamada, Takahiro Browse this author →KAKEN DB
Morikawa, Mamoru Browse this author →KAKEN DB
Ishikawa, Satoshi Browse this author
Furuta, Itsuko Browse this author →KAKEN DB
Koyama, Takahiro Browse this author
Matsuno, Kazuhiko Browse this author →KAKEN DB
Minakami, Hisanori Browse this author →KAKEN DB
Keywords: Gestational thrombocytopenia
HELLP syndrome
Platelet aggregation assay
Platelet reactivity
Soluble P-selectin
Issue Date: Feb-2016
Publisher: Elsevier
Journal Title: Thrombosis Research
Volume: 138
Start Page: 43
End Page: 48
Publisher DOI: 10.1016/j.thromres.2015.12.019
PMID: 26826507
Abstract: Background: Gestational thrombocytopenia is more likely to occur in twin than singleton pregnancies. However, it is unclear whether platelets are more reactive in twin than singleton pregnancies. Methods: Changes in spontaneous platelet aggregation and concomitant fall in platelet count were examined over 90 min after blood sampling in 171 and 52 citrated whole blood (CWB) samples from 59 and 17 women with singleton and twin pregnancies, respectively. Soluble P-selectin (sP-selectin) levels in the plasma were also determined. Results: CWB 60 min after blood sampling during 2nd trimester exhibited significantly larger numbers of platelet aggregates (1297 ± 1600 vs. 497 ± 432/μl, P = 0.040) concomitant with significantly greater net decrease in platelet count (152 ± 55 vs. 115 ± 45 × 10^9/μl, P = 0.036) in twin than singleton pregnancies, respectively. This was followed by significantly lower 3rd trimester platelet count (181 ± 43 vs. 229 ± 62 × 10^9/l, P = 0.009) with significantly greater mean platelet volume (8.0 ± 1.2 vs. 7.1 ± 1.1 fl, P = 0.021) in twin than singleton pregnancies, respectively. The 3rd trimester sP-selectin per platelet was significantly higher in twin than singleton pregnancies. Conclusions: Platelets were more reactive in the 2nd trimester of twin than singleton pregnancies. This enhanced platelet reactivity may explain the decreased platelet count in the 3rd trimester of twin pregnancy.
Rights: © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山田 崇弘

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