Stephen Twumasi: The Impact of Hepatitis B Infection on the Coagulation System During Pregnancy
Stephen Twumasi, Head of Medical Laboratory and Senior Biomedical Scientist at Legacy Hospital, shared a post on LinkedIn about a recent article he and his colleagues co-authored, adding:
“New Publication Alert!
Hepatitis B remains highly prevalent in many parts of the world, particularly in sub-Saharan Africa. But how does Hepatitis B infection affect the coagulation system during pregnancy?
In our newly published study, we investigated the impact of Hepatitis B infection on coagulation parameters and liver biomarkers among pregnant women in Ghana.
Using a case–control design involving 180 pregnant women, we compared HBV-infected participants with HBV-negative controls to better understand the biochemical and hemostatic changes associated with infection.
Key findings from the study:
- HBV-infected pregnant women showed significantly elevated liver enzymes and bilirubin levels, suggesting hepatic injury.
- Important coagulation markers such as fibrinogen, protein C, and protein S were significantly reduced.
- Prothrombin time (PT) and activated partial thromboplastin time (aPTT) were prolonged, indicating disturbances in the coagulation cascade.
- Interestingly, aPTT, fibrinogen, and protein C demonstrated strong diagnostic potential for identifying chronic HBV infection.
Why this matters
Pregnancy naturally alters the coagulation system. When combined with Hepatitis B infection, these changes may further disrupt the delicate hemostatic balance, potentially increasing the risk of complications. Monitoring these biomarkers could therefore play an important role in the clinical management of HBV-positive pregnancies.
Impact
This study adds to the limited evidence on hemostatic alterations in HBV-infected pregnant women in sub-Saharan Africa and highlights potential biomarkers that may aid in monitoring disease-related complications.
I’m grateful to my co-authors and collaborators who contributed to this work.”
Title: The Effect of Hepatitis B Infection on Levels of Fibrinogen, Protein C, and Protein S in Pregnant Women
Authors: Abiba Alhassan Khalifah, Stephen Twumasi, Allwell Adofo Ayirebi, Wina Ivy Ofori Boadu, Francis Agyei Amponsah, Joseph Frimpong, David Amoah Afrifah, Ernest Appiagyei, Albert Ntim Boadu, Daniel Nii Martey Antonio, Enoch Odame Anto
Read the Full Article on Journal of Pregnancy

Stay updated on all scientific advances with Hemostasis Today.
-
Nov 8, 2026, 19:31Anna Kajaste-Rudnitski: Presenting AAV-Induced p53 Signalling in Human CNS Cells at ESGCT 26
-
Nov 8, 2026, 19:29David McIntosh: Cybersecurity Matters, but Blood Availability Remains the Bigger Challenge
-
Nov 8, 2026, 19:26Wenxue Ma: An Integrative Framework for Macrophage-Mediated Therapeutic Resistance in Cancer
-
Nov 8, 2026, 19:25Yildiz Yigit: Presenting a Polycythemia Vera Case at the MPN Subcommittee Session
-
Nov 8, 2026, 18:56Denis Oduor: Strengthening the Regulation and Delivery of Blood Transfusion and Transplantation Services
-
Nov 8, 2026, 18:28Raghavendra Rao: A Narrative Review on Chronic Venous Disease during Pregnancy
-
Nov 8, 2026, 17:57Dhiren Patel: PLD1-Derived Phospholipids Regulate NAD Kinase and ROS Production in Neutrophils
-
Nov 8, 2026, 17:48Andra T.: What Causes Antiphospholipid Syndrome? – Four Steps, not One Cause
-
Nov 8, 2026, 17:38Nasrin Samadi: Can a Normal Clotting Test Be Misleading?