Assessment of left atrial volume before and after pulmonary thromboendarterectomy in chronic thromboembolic pulmonary hypertension

Table 1 Hemodynamic and echocardiographic characteristics pre- and post-PTE

	Pre-PTE	Post-PTE	p value
Right heart catheterization
Mean PA pressure (mmHg)	45.5 ± 9.6	28.8 ± 6.7	<0.001
PVR (dyne-sec)/cm⁵	765 ± 396	310 ± 143	<0.001
Cardiac output (L/min)	3.9 ± 1.2	5.2 ± 1.6	<0.001
Echocardiogram
Cardiac index	2.6 ± 0.8	3.2 ± 0.5	<0.001
Mitral E/A ratio	0.95 ± 0.31	1.45 ± 0.48	<0.001
Lateral E/E’ ratio	6.1 ± 2.8	7.9 ± 2.7	<0.001
Deceleration time (ms)	224 ± 60	189 ± 39	<0.001
Left atrial volume index (cm³/m²)	19.0 ± 7.0	22.4 ± 6.8	0.003

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