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Surreptitious bleeding in surgery: a major challenge in coagulation
1Medicine, Haematology & Oncology, Baylor College of Medicine, Methodist Hospital, Houston, Texas 77030, USA.
Clinical and Laboratory Haematology
|March 17, 2001
Summary
Unexpected postoperative bleeding can signal acquired hemophilia, a rare condition where the body develops antibodies against factor VIII. Early recognition and immunosuppressive therapy are crucial for managing this potentially reversible bleeding disorder.
Area of Science:
- Hematology
- Immunology
- Surgical Complications
Background:
- Postoperative bleeding can stem from surgical hemostasis issues or acquired coagulation disorders.
- Acquired hemophilia, characterized by factor VIII inhibitors, is a rare but serious complication.
Observation:
- Three patients experienced severe, unexpected postoperative bleeding despite normal preoperative coagulation tests.
- Bleeding onset was within days of major surgeries (bowel resection, cholecystectomy, CABG).
- Patients developed prolonged activated partial thromboplastin time (aPTT) due to acquired factor VIII antibodies.
Findings:
- Treatment strategies included factor VIII replacement, immunosuppression (corticosteroids, IVIG, cyclophosphamide, 6-mercaptopurine), and plasma exchange.
- One patient achieved remission with immunosuppressive therapy; another had a partial response but died from liver failure.
- The third patient maintained a stable low-titer inhibitor with long-term management.
Implications:
- Surgery may trigger acquired hemophilia, a syndrome not widely recognized as a surgical complication.
- Prompt diagnosis and aggressive immunosuppressive therapy can lead to remission and improved outcomes.
- Clinicians must consider acquired hemophilia in patients with unexplained postoperative hemorrhage.