Acute Acquired Hemophilia A Following Snake Bite: A Case Report and Clinical Insights.

BACKGROUND Coagulopathies can manifest on a spectrum, from minor mucosal bleeding to life-threatening hemorrhage. Minor cases can be discovered in the setting of known risk factors, such as malignancy, old age, immunosuppression. However, acquired hemophilia A diagnosed after a snake bite is of lesser-known incidence and can present in a more acute, potentially life- or limb-threatening fashion. To properly diagnose this coagulopathy, one must be familiar with the related signs, symptoms, and laboratory findings so that swift diagnosis can follow. Diagnosis is key for early proper management, as displayed in the following case. CASE REPORT Our case report details a male patient presenting with diffuse bruising after a snake bite. Initially, on presentation to outside facilities, the diagnosis of acquired hemophilia A was not found. However, upon worsening of bruising in the setting of previous treatments initiated for the patient, he presented to our facility, where he subsequently received a diagnosis with acquired hemophilia A. He developed compartment syndrome due to excessive bleeding, requiring surgical intervention. With proper diagnosis, his bleeding diathesis was corrected with multiple rounds of repletion of factors and immunosuppression. His follow-up laboratory test results and examinations have shown continued resolution of his symptoms. CONCLUSIONS As acquired hemophilia A is less often linked with snake bites, this case highlights the importance of considering this disease process as a differential in patients with bleeding diathesis after a snake bite. The coagulation dysfunction can be severe, and, as such, early identification of this diagnosis leads to more targeted and effective therapy.