Platelet reactivity in twin pregnancies

HANDLE Open Access

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.

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Keywords

Details 詳細情報について

  • CRID
    1050001339019437696
  • NII Article ID
    120006581490
  • HANDLE
    2115/64445
  • ISSN
    00493848
  • Text Lang
    en
  • Article Type
    journal article
  • Data Source
    • IRDB
    • CiNii Articles

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