European Journal of Cardio-Thoracic Surgery, Vol 3, 87-88, Copyright © 1989 by European Association for Cardio-thoracic Surgery
In vitro thrombolysis of thrombosed valve prostheses: therapeutic considerations of left-sided thrombotic lesions
HY Karagoz, KM Babacan, YI Zorlutuna, O Tasdemir, C Yakut and K Bayazit
Department of Cardiovascular Surgery, Higher Specialization Hospital of Turkey, Ankara.
Six thrombosed Bjork-Shiley mitral valve prostheses which had been removed
in emergency reoperations between November 1985 and December 1986 underwent
in vitro thrombolysis with urokinase. After a mean period of 14 +/- 3 h of
in vitro fibrinolysis, lysis of thrombus was observed, but large fragments
of organized thrombus were released into the medium, suggesting that
thrombolytic therapy should not be used for thrombotic occlusions on the
left side of the heart, as the risk of systemic embolization is high.