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Table 8 Clinical and hemodynamic effect of BPA treatment in 24 CTEPH patients

From: Bilateral versus unilateral balloon pulmonary angioplasty for inoperable chronic thromboembolic pulmonary hypertension

 

24 CTEPH patients

p

Before BPA

After BPA

Patient characteristics

 Age (years)

59 ± 10

–

 Female (%)

18 (75%)

–

 Number of BPA sessions/patient

3 (2,4)

–

 Duration to follow-up (days)

115 (81, 177)

–

 PAH targeted therapy (%)

11 (45.8%)

 

Hemodynamics

 Heart rate

79.8 ± 15.3

69.5 ± 10.1

0.009

 Mean RAP (mmHg)

7.9 ± 4.0

5.5 ± 3.4

0.062

 Systolic PAP (mmHg)

70.8 ± 25.0

50.3 ± 14.2

0.001

 Diastolic PAP (mmHg)

23.5 ± 9.1

15.8 ± 6.0

0.001

 Mean PAP (mmHg)

40.6 ± 13.8

28.5 ± 8.0

0.001

 PVR (Wood unit)

8.0 (3.7,17.0)

4.0 (2.9, 5.4)

0.007

 Cardiac output (L/min)

3.5 (2.6, 5.4)

4.7 (3.7, 5.8)

0.017

 Cardiac index (L/min/m2)

2.2 (1.8, 3.4)

2.9 (2.5, 3.5)

0.044

 PASO2 (%)

64.1 ± 9.5

68.7 ± 7.2

0.068

 MVSO2 (%)

93.7 ± 3.4

95.2 ± 3.0

0.116

 NT-proBNP (pg/ml)

171.0 (71.5, 1569.0)

50.6 (26.5, 113.4)

0.002

Exercise capacity

 WHO functional class (I–II/III–IV, %)

50.0%/50.0%

95.8%/4.2%

< 0.001

 Absolute change of 6MWD (meters)

88.0 ± 55.5

< 0.001

  1. Continuous variables are expressed as mean ± standard deviation or median and interquartile range according to variable distribution
  2. CTEPH chronic thromboembolic pulmonary hypertension, BPA balloon pulmonary angioplasty, RAP right atrium pressure, PAP pulmonary artery pressure, PVR pulmonary vascular resistance, PASO2 pulmonary arterial oxygen saturation, MVSO2 mixed venous oxygen saturation, NT-proBNP N-terminal pro-B-type natriuretic peptide, WHO World Health Organization, 6MWD 6-min walk distance