Table 2.

Pressure-Volume Data

Variable	Baseline	Shunt Open	Shunt Closed	Overall P-value	P - value Baseline - Open	P - value Baseline - Closed	P - value Open - Closed
LAP max(mmHg)	10.9±2.4	14.1±2.7	10.3±3.2	0.002	0.001	0.631	0.005
LAP min(mmHg)	5.8±2.4	5.8±1.6	5.0±2.3	0.336	——	——	——
RAP max(mmHg)	9.5±3.1	9.4±2.9	7.6±3.6	0.065	——	——	——
RAP min(mmHg)	6.1±3.2	5.9±2.7	4.3±2.9	0.063	——	——	——
CVP(mmHg)	6.9±2.3	6.5±2.6	5.8±2.6	0.110	——	——	——
LA Volume(ml)	21.3±4.4	27.1±5.8	17.9±3.5	<0.001	0.002	0.011	<0.001
LA Diameter(cm)	3.40±0.25	3.72±0.32	3.31±0.35	0.001	<0.001	0.625	0.011
RA Volume(ml)	22.7±10.5	24.7±7.6	18.3±5.4	0.109	——	——	——
RA Diameter(cm)	3.71±1.00	4.04±1.01	3.86±1.03	0.124	——	——	——

LA=left atrial, RA= right atrial, LAP=left atrial pressure, RAP=right atrial pressure, CVP=central venous pressure