Detailed Instructions: Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).
Problem:Abstract: Recurrent pulmonary embolism from the lower extremities or pelvis, despite anticoagulation, often requires interruption of the inferior vena cava (IVC). We report two patients in whom interruption of the IVC failed to ameliorate symptoms. Both patients demonstrated a previously unrecognized duplication of the IVC. We stress the importance of excluding abdominal venous anomalies prior to interrupting the IVC using surgical or percutaneous methods.
Which is the apt title for the abstract? option1: Duplication of the inferior vena cava in thromboembolic disease. option2: Pulse oximetry during cardiac catheterization in children with congenital heart disease.
Solution:
Duplication of the inferior vena cava in thromboembolic disease.