Exercise performance and symptomatology in patients with dual chamber rate responsive pacemakers: a comparative evaluation between DDDR, VVIR and VVI pacing modes
Professor Lau, Chu Pak (Principal investigator)
Wu Chung Medical Research Fund
In patients with complete heart block implanted with dual chamber rate responsive pacemakers, we aim to: 1) assess the exercise performance and cardiac output in the dual chamber pacing mode and the single chamber rate responsive mode. The assessment will include maximal (treadmill testing) and submaximal exercise 2) assess the symptomatology and pacing rate correlation with the level of activities between these pacing modes.