Catheter-Directed Thrombolysis for Submassive Pulmonary Embolism in the Third Trimester of Pregnancy.

A 37-year-old woman presented with chest pain and shortness of breath in the third trimester of pregnancy. Diagnostic imaging demonstrated a saddle pulmonary embolism, severe impairment of right ventricular function, and an extensive deep venous thrombus. She underwent catheter-directed thrombolysis with tissue plasminogen activator and delivered a healthy infant at term. (Level of Difficulty: Intermediate.).