Optimisation of Cardiac Resynchronisation Therapy by Non-invasive Cardiac Output - The CHOICE2 Study

Optimisation of Cardiac Resynchronisation Therapy by Non-invasive Cardiac Output - The CHOICE2 Study

An evaluation of the role of resting and exercise cardiac output measurement, by the inert gas rebreathing method, in optimisation of patients with cardiac resynchronisation pacemakers.

Inclusion Criteria:

• Cardiac Resynchronization Device in situ for Heart Failure

Exclusion Criteria:

• Unable to cope with mouthpiece
• Estimated life expectancy < 6 months