Breathing carbon dioxide measurement to detect lung high blood pressure

This study looks at patterns from specialized lung scan tests to help diagnose chronic thromboembolic pulmonary hypertension (a long-term problem with blood flow in the lungs after blood clots). If your results suggest this condition and you need a procedure to check heart pressure, you may be asked to join so the researchers can improve diagnosis.

This study tests if a small sensor placed in your lung artery during surgery can safely help doctors watch for remaining high blood pressure after the operation. It may help catch problems earlier, but it is a small exploratory study for people at higher risk of having this issue.

This study checks whether measuring blood gases from a specific heart “wedge” position during a right heart catheter test gives useful information. It may help doctors understand how blood and oxygen are doing in certain heart and lung conditions.

This trial looks at whether a new way of measuring carbon dioxide (CO2) in the blood can help doctors quickly understand why a patient is short of breath. It is for adults who come to the emergency room with trouble breathing, and it involves doing an extra analysis on a blood sample that would be taken anyway.

This study checks whether a device that measures carbon dioxide in your breath (capnography) can reliably reflect the carbon dioxide level in your blood during lung surgery when only one lung is being used. This could help doctors monitor you more safely without extra blood tests.

This study aims to better understand how COPD affects the blood vessels in your lungs by looking at measurements from a right heart catheterization. It may help doctors identify a specific pattern of lung and heart problems in people with COPD.