Large, central bilateral pulmonary emboli led to cor pulmonale and sev
ere hypoxemia in a patient who had recently undergone cardiac surgery.
After percutaneous catheter fragmentation and thrombolysis of the emb
oli failed, the left and right interlobal pulmonary arteries were reca
nalized by placement of self-expanding Wallstent endoprostheses throug
h the clots. Pulmonary perfusion was restored to the lower lobes, and
the patient demonstrated rapid clinical improvement.