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Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
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Related Experiment Video

Updated: Jul 10, 2025

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
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[Relationship between coagulation status, autoantibodies, and conception method with subchorionic hematoma].

W W Lun1, P R Wang1, T T Xu1

  • 1Department of Obstetrics, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.

Zhonghua Fu Chan Ke Za Zhi
|November 20, 2023
PubMed
Summary

Subchorionic hematoma (SCH) is linked to blood hypercoagulability, positive autoantibodies, and assisted reproduction methods. These findings highlight key factors associated with SCH occurrence in pregnant women.

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Area of Science:

  • Obstetrics and Gynecology
  • Reproductive Medicine
  • Hematology

Context:

  • Subchorionic hematoma (SCH) is a common complication during pregnancy.
  • Understanding the risk factors for SCH is crucial for improved maternal and fetal outcomes.
  • Previous research has explored various factors, but a comprehensive analysis linking coagulation, autoimmunity, and conception methods is needed.

Purpose:

  • To investigate the association between subchorionic hematoma (SCH) and specific coagulation parameters.
  • To examine the relationship between SCH and the presence of autoantibodies.
  • To determine if the method of conception influences the occurrence of SCH.

Summary:

  • Pregnant women with SCH exhibited significantly higher levels of platelets, fibrinogen, D-dimer, and homocysteine, alongside lower protein S activity compared to controls.
  • The incidence of positive autoantibodies, including antiphospholipid antibodies and antinuclear antibodies, was notably higher in the SCH group.
  • Assisted reproduction techniques were also more prevalent in women diagnosed with SCH.

Impact:

  • This study identifies blood hypercoagulability, positive autoantibodies, and assisted reproduction as significant risk factors for subchorionic hematoma.
  • Findings can inform clinical practice for risk assessment and management of pregnant women.
  • Contributes to a deeper understanding of the pathophysiology of SCH.