Atrial Reverse Remodeling by Bachmann's Bundle Pacing With Improved Interatrial Dyssynchrony: Case Series
Misaki Naka1, Tetsuma Kawaji1,2, Bingyuan Bao1
1Department of Cardiology, Mitsubishi Kyoto Hospital, Kyoto, Japan.
Background:
Bachmann's bundle pacing (BBp) improves interatrial conduction, but its clinical impact on atrial function has not fully established.
Methods And Results:
We report eight cases of attempted BBp. Three cases met BBp electrocardiographic criteria with significant P-wave shortening and P-wave amplitude increase in the inferior leads, resulting in improved left atrial (LA) function (increased a' velocity, decreased E/e', and reduced LA diameter) and heart failure stabilization. Conversely, the remaining five cases failing to achieve significant P-wave changes showed no such improvements.
Conclusions:
Restoring interatrial conduction through successful BBp may optimize LA performance, potentially offering heart failure stabilization.
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