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Hemarthrosis associated with sodium warfarin
The Journal of Rheumatology
|January 1, 1977
Summary
Warfarin (sodium warfarin) can cause acute hemarthrosis, even within therapeutic ranges. Discontinuing the anticoagulant medication resolved synovitis, but long-term joint function requires further evaluation.
Area of Science:
- Rheumatology
- Hematology
- Pharmacology
Background:
- Acute hemarthrosis is a painful joint effusion. Sodium warfarin is a common anticoagulant. Drug-induced joint complications require careful diagnosis.
- Patients on sodium warfarin therapy may develop joint complications, including acute hemarthrosis. Understanding these adverse events is crucial for patient management.
Purpose of the Study:
- To report on three cases of acute hemarthrosis associated with sodium warfarin therapy.
- To investigate the diagnostic and therapeutic approach to warfarin-induced hemarthrosis.
Main Methods:
- Case series analysis of three patients experiencing acute hemarthrosis.
- Clinical evaluation, synovial fluid aspiration, and prothrombin time (PT) monitoring.
Main Results:
- Three patients developed acute hemarthrosis while on sodium warfarin. Synovial aspiration was diagnostic and well-tolerated.
- Two patients had PT within the therapeutic range, and one had a history of prior joint disease with minor trauma. Symptoms resolved after warfarin discontinuation.
Conclusions:
- Sodium warfarin can precipitate acute hemarthrosis, even at therapeutic levels. Prompt diagnosis via synovial aspiration and cessation of warfarin are key.
- While joint function appeared to recover, long-term monitoring is necessary to assess the full impact of warfarin-induced hemarthrosis on joint health.