Acquired Factor V Deficiency After Carbapenem Administration: A Case Report

Abstract

Factor V (FV) deficiency is a coagulation disorder (congenital or acquired). Unlike congenital FV deficiency, mixing tests for prothrombin time and activated partial thromboplastin time are not corrected in acquired FV cases. A 79-year-old male was admitted to the intensive care unit after an emergency operation due to gastric ulcer perforation. While receiving antibiotic treatment for septic shock, the coagulation profile began to show prolongation of prothrombin time and activated partial thromboplastin time. FV deficiency (< 1%) following meropenem administration was diagnosed . The patient did not show spontaneous bleeding or bleeding tendency. With fresh frozen plasma transfusion, steroid administration, and discontinuation of meropenem, the blood coagulation profile test result was normalized 20 days after diagnosis. His follow-up FV level increased to 78.7%. Although abnormalities in coagulation profiles are common in sepsis patients, in our patient, timely recognition and hematological consultation allowed early diagnosis and proper management of FV deficiency.