Table 2 Preoperative CT findings and concurrent operation in patients with and without five-year adverse event.

From: Impact of preoperative clinical and imaging factors on post-pericardiectomy outcomes in chronic constrictive pericarditis patients

Variable

Total (n = 91)

Adverse event (+) (n = 26)

No event (n = 65)

P-value

CT characteristics

    

Pericardial calcification (+), n (%)

   

0.186

 No calcification (fibrosis)

36 (39.6)

7 (26.9)

29 (44.6)

 

 With any calcification

55 (60.4)

19 (73.1)

36 (55.4)

 

Pericardial calcium volume, mm3

931.4 [0.0–24411.2]

3258.0 [0.0–34212.4]

435.8 [0.0–17462.0]

0.151

Pericardial calcium score

1231.4 [0.0–31190.2]

4024.2 [0.0–44094.8]

347.4 [0.0–27462.0]

0.158

ln (pericardial calcium volume + 1)

6.8 [0.0–10.1]

8.1 [0.0–10.4]

6.1 [0.0–9.8]

0.151

ln (pericardial calcium score + 1)

7.1 [0.0–10.3]

8.3 [0.0–10.7]

5.9 [0.0– 0.2]

0.158

Maximal pericardial thickness, mm

3.0 [2.4–4.1]

2.7 [2.4–3.6]

3.1 [2.5–4.4]

0.308

 Right ventricle side

2.7 [1.9–3.8]

2.6 [1.7–3.0]

2.7 [2.0–4.0]

0.148

 Left ventricle side

2.5 [1.8–3.4]

2.4 [1.6–3.2]

2.6 [1.8–3.6]

0.577

Maximal pericardial calcification thickness, mm

2.0 [0.0–5.6]

2.9 [0.0–8.0]

1.5 [0.0–5.3]

0.175

 Right ventricle side

0.0 [0.0–3.5]

0.0 [0.0–4.0]

0.0 [0.0–2.9]

0.648

 Left ventricle side

0.0 [0.0–4.2]

2.6 [0.0–8.0]

0.0 [0.0–3.3]

0.029

Septal bowing, n (%)

58 (63.7)

17 (65.4)

41 (63.1)

1.000

Pericardial effusion, n (%)

24 (26.4)

8 (30.8)

16 (24.6)

0.735

Pleural effusion, n (%)

57 (62.6)

18 (69.2)

39 (60.0)

0.560

Pericardial calcification adjacent to the coronary arteries (+), n (%)

28 (30.8)

11 (42.3)

17 (26.2)

0.209

Significant coronary artery disease*

11 (12.1)

6 (23.1)

5 (7.7)

0.070

Operation findings

    

Cardiopulmonary bypass, n (%)

63 (69.2)

19 (73.1)

44 (67.7)

0.802

Total pump time

105.0 [0.0–163.5]

135.0 [0.0–192.0]

82.0 [0.0–155.0]

0.215

Pericardiectomy extent

   

0.904

 Extended pericardiectomy

71 (78.0)

21 (80.8)

50 (76.9)

 

 Partial pericardiectomy

20 (22.0)

5 (19.2)

15 (23.1)

 

Pericardiectomy alone

71 (78.0)

19 (73.1)

52 (80.0)

0.660

Concurrent operation (+)

20 (22.0)

7 (26.9)

13 (20.0)

 

 AVR, CABG

2 (2.2)

1 (3.9)

1 (1.5)

 

 CABG

2 (2.2)

1 (3.9)

1 (1.5)

 

 Maze operation

4 (4.4)

1 (3.9)

3 (4.6)

 

 MVP

1 (1.1)

0 (0.0)

1 (1.5)

 

 MVR, TAP

2 (2.2)

2 (7.7)

0 (0.0)

 

 PVR

1 (1.1)

0 (0.0)

1 (1.5)

 

 RVOT reconstruction

1 (1.1)

0 (0.0)

1 (1.5)

 

 TAP

4 (4.4)

2 (7.7)

2 (3.1)

 

 TAP, Maze operation

2 (2.2)

0 (0.0)

2 (3.1)

 

 TVR

1 (1.1)

0 (0.0)

1 (1.5)

 
  1. Data are reported as median [interquartile range] or number (percentage), if not otherwise specified. *Moderate to severe stenosis of the coronary artery. AVR, aortic valve replacement; CABG, coronary artery bypass graft; MVP, mitral valve repair; AVR, mitral valve replacement; PVR, pulmonic valve replacement; RVOT, right ventricular outflow tract; TAP, tricuspid annulus repair; TVR, tricuspid valve replacement.
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