New study to track rare Lung-Linked liver condition

This study will follow 300 adults who have both an abnormal connection between their liver and blood vessels (portosystemic shunt) and high blood pressure in the lungs (pulmonary hypertension). The goal is to learn more about how common this condition is, what symptoms people have, how they respond to treatments, and what happens to them over time. Participants will be monitored for changes in their health, including exercise ability and hospital visits.