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Table 1 Preoperative patient characteristics

From: Quantifying the learning curve for pulmonary thromboendarterectomy

 

Overall

Tercile (T)

P value

Variable

(n = 134)

T1 (n = 44)

T2 (n = 45)

T3 (n = 45)

T1 vs. T3

Age (y)

54 ± 15

54 ± 14

54 ± 14

53 ± 16

0.757

Male Sex (%)

81 (60.4)

22 (50.0)

32 (71.1)

27 (60.0)

0.343

PAP (mm Hg)

 Systolic

78 ± 20

77 ± 19

78 ± 21

78 ± 20

0.778

 Diastolic

28 ± 9

26 ± 10

30 ± 8

27 ± 9

0.882

PVR (dynes-sec-cm−5)

639 ± 373

695 ± 442

618 ± 371

602 ± 292

0.243

CO (L/min)

4.7 ± 1.5

4.5 ± 1.5

4.8 ± 1.4

4.7 ± 1.5

0.531

DLCO (% predicted)

64 ± 19

66 ± 17

67 ± 20

56 ± 18

0.011

NYHA class

 I

1 (0.7)

0 (0)

1 (2.2)

0 (0)

0.218

 II

43 (32.1)

17 (38.6)

14 (31.1)

12 (26.7)

 

 III

74 (55.2)

21 (47.7)

26 (57.8)

27 (60.0)

 

 IV

15 (11.2)

6 (13.6)

3 (6.7)

6 (13.3)

 

Jamieson classification

 Type 1

1 (0.7)

0 (0)

1 (2.2)

0 (0)

0.226

 Type 2

64 (47.8)

24 (54.5)

20 (44.4)

20 (44.4)

 

 Type 3

61 (45.5)

20 (45.5)

17 (37.8)

24 (53.3)

 

 Type 4

0 (0)

0 (0)

0 (0)

0 (0)

 
  1. Data are shown as mean ± standard deviation or numbers (percentages)
  2. PAP pulmonary artery pressure, PVR pulmonary vascular resistance, CO cardiac output, DLCO diffusing capacity of carbon monoxide, NYHA New York Heart Association