Abstract:
:Mechanical valve thrombosis is a life-threatening event. Pregnancy is associated with a hypercoagulable state that further emphasizes the importance of adequate anticoagulation. This is associated with a therapeutic dilemma. Continued anticoagulation with warfarin throughout the first trimester can result in fetopathic effects, while replacement of warfarin by heparin between 6 and 12 weeks of gestation does not completely prevent the risk of valve thrombosis. There are a small number of reported cases of pregnant women with prosthetic heart valve thrombosis under low molecular weight heparin and consecutive lytic therapy. The authors report a 33-year-old pregnant woman with a St. Jude Medical aortic prosthesis, anticoagulated with a therapeutic dosage of low molecular weight heparin from 6 weeks of gestation, who developed prosthetic heart valve thrombosis at 17 weeks of gestation. A thrombolysis with recombinant tissue-type plasminogen activator (50 mg for 2 hours) was performed. Under thrombolysis, ST-segment elevation in leads II, III, aVF, V5, and V6 developed electrocardiographically with a maximal creatine kinase (CK) of 349 U/L (CK-MB isoenzyme of 48 U/L). Echocardiography revealed normal function of the St. Jude Medical aortic prosthesis 2 hours after thrombolysis and normal wall motions. Short-course thrombolytic therapy appears to be an effective alternative to surgical intervention for the treatment of thrombotic dysfunction of valve prostheses in pregnancy.
journal_name
Cardiol Revjournal_title
Cardiology in reviewauthors
Behrendt P,Schwartzkopff B,Perings S,Gerhardt A,Zotz RB,Strauer BEdoi
10.1097/00045415-200211000-00007keywords:
subject
Has Abstractpub_date
2002-11-01 00:00:00pages
349-53issue
6eissn
1061-5377issn
1538-4683pii
01.CRD.0000031462.45070.4Ajournal_volume
10pub_type
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