Related Experiment Video
Updated: Jan 6, 2026

Tail Vein Transection Bleeding Model in Fully Anesthetized Hemophilia A Mice
Published on: September 30, 2021
Perioperative management of severe factor VII deficiency: a single-center experience in China
Chao Zhu1, Jinxia Zhao1, Longqiang Xu1
1Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China.
Introduction:
Inherited factor VII (FVII) deficiency is a rare autosomal recessive disorder whose clinical phenotypes are highly variable. Many studies have observed the absence of a clear-cut and consistent correlation between bleeding symptoms and FVII levels. Perioperative bleeding is a major concern in patients with FVII deficiency, but validated recommendations about the perioperative management of replacement therapy (RT) with FVII are lacking.
Methods:
Our study retrospectively summarized and analyzed the perioperative hemostasis management of severe FVII deficiency in 20 patients.
Results:
We found that replacement therapy is generally effective and that there is no significant correlation between the perioperative hemorrhagic complications after RT and the severity of FVII level before RT. Through multivariate statistical analysis and a retrospective analysis of other coagulation factor deficiencies at our center, we found that postoperative secondary hyperfibrinolysis in patients with FVII deficiency may not be universal.
Discussion:
Antifibrinolytic treatment may be necessary for patients undergoing surgery at sites with high fibrinolytic activity during the perioperative period. In addition, clinical data such as bleeding phenotype, bleeding history, and surgical sites should be given appropriate attention in perioperative treatment and monitoring.
Related Concept Videos
Venous Thrombosis III: Interprofessional Care
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Pulmonary Embolism III: Nursing Management
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol...
