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Updated: Jun 23, 2025

In Vitro Thrombosis Test for Ventricular Assist Devices
Published on: March 21, 2025
Viscoelastic testing guided coagulation management in factor VII deficiency for spinal anaesthesia and caesarean
Uzung Yoon1, Shannon Haley2, Suzanne Huffnagle2
1Department of Anesthesiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA uzyoon@gmail.com.
Abstract:
The risks and benefits of spinal anaesthesia must be assessed in patients with coagulation disorders. A woman in her 20s with congenital factor VII (FVII) deficiency (31%) was admitted at 38 weeks for caesarean delivery. A rotational thromboelastometry (ROTEM) analysis showed normal coagulation and spinal anaesthesia was performed safely. A repeated ROTEM analysis after haemostasis and uterine closure showed normal coagulation without fibrinolysis. No prophylactic FVII was administered, resulting in a cost savings of US$12 884. FVII level did not predict bleeding or fibrinolysis and FVII and tranexamic acid were not indicated.
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