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Low-dose thrombolysis for thrombosed prosthetic heart valve
E Delacrétaz1, J Beer, M Fleisch
1Department of Cardiology, University Hospital, Bern, Switzerland.
Chest
|August 1, 1996
Summary
Low-dose urokinase successfully dissolved clots in artificial heart valves. This fibrinolysis therapy used only one-third of the standard urokinase dose for effective treatment.
Area of Science:
- Cardiology
- Vascular Medicine
- Pharmacology
Background:
- Prosthetic heart valve thrombosis is a serious complication.
- Existing treatments for valve thrombosis often involve high doses of thrombolytic agents.
- Carbomedics mechanical valves are susceptible to thrombotic events.
Observation:
- Two patients presented with thrombosed tricuspid and mitral Carbomedics valve prostheses.
- These patients were treated with a significantly reduced dose of urokinase.
Findings:
- Successful fibrinolysis of the thrombosed valve prostheses was achieved in both cases.
- The low-dose urokinase therapy, at one-third of the standard recommended dose, proved effective.
- This suggests a potential for dose reduction in urokinase therapy for valve thrombosis.
Implications:
- Low-dose urokinase may be a viable and safer alternative for treating prosthetic valve thrombosis.
- This approach could reduce the risk of bleeding complications associated with higher thrombolytic doses.
- Further research is warranted to confirm the efficacy and safety of this reduced-dose regimen.