Figure legends
Figure 1 : The LAP waveform
Respiratory variations in the LAP waveform during the procedure were observed, and the inspiratory LAP prominently dropped to less than the atmospheric pressure (0 mmHg).
The average LAP, that during the inspiratory and expiratory phase, and the lowest LAP were measured, respectively.
Exp: expiratory phase
Insp: inspiratory phase
LAP: left atrial pressure