Table 2:

Data on balloon pulmonary angioplasty before pulmonary endarterectomy

Variable	BPA group
Number of sessions/patient	2 [1, 2]
1, % (n)	42.9 (9)
2, % (n)	42.9 (9)
3, % (n)	4.8 (1)
≥4, % (n)	9.5 (2)
Targeted pulmonary artery
Right lung only, % (n)	14.3 (3)
Left lung only, % (n)	23.8 (5)
Both lungs, % (n)	61.9 (13)
Distribution of targeted pulmonary artery
Right lung
Upper lobe, % (n)	57.1 (12)
Middle lobe, % (n)	52.4 (11)
Lower lobe, % (n)	38.1 (8)
Left lung
Upper lobe except lingular segments, % (n)	28.6 (6)
Lingular segment, % (n)	66.7 (14)
Lower lobe, % (n)	76.2 (16)
Preprocedural inotropic agent, % (n)	23.8 (5)
Complications, % (n)	19.1 (4)
Vascular injury or reperfusion oedema, n	4
Interval from last BPA to PEA, days	44 [22, 134]

Data are presented as medians [interquartile range].

BPA: balloon pulmonary angioplasty; PEA: pulmonary endarterectomy.