Diagnosis and follow-up of a large inferior caval vein thrombus following right heart catheterization.

A case is described of the development of an inferior caval vein thrombus and subsequent pulmonary embolism after right heart catheterization. The caval thrombus was diagnosed by echography. After six weeks of anticoagulant therapy the thrombus had resolved. The indication for prophylactic heparinization is discussed.