Table 2: Open in new tab Operative data...

	Total (N = 73)	Z-score ≤ -2.85 (N = 37)	Z-score > -2.85 (N = 36)	P-value
Operative data
Age at surgery (months)	4.8 ± 2.9	5.5 ± 3.8	4.2 ± 1.4	0.3
Effective PV orifice precommissurotomy	5.1 ± 1.2	4.4 ± 0.9	5.9 ± 1.0	<0.001
Real PV annulus after the commissurotomy	7.0 ± 1.0	6.3 ± 0.7	7.6 ± 0.7	<0.001
RVSP (% of systemic)				0.01
1/3	23 (32)	9 (24)	14 (39)
1/2	31 (42)	13 (35)	18 (50)
2/3	19 (26)	15 (41)	4 (11)
CPB time (min)	139 ± 31	148 ± 29	130 ± 31	0.008
AOX time (min)	86 ± 22	94 ± 16	79 ± 25	0.001
Postoperative outcomes
ICU stay (days)	3.8 ± 2.6	4.3 ± 3.3	3.3 ± 1.5	0.2
Length of stay (days)	13.2 ± 7.8	13.8 ± 8.0	12.7 ± 7.5	0.5
Postoperative complications	18 (25)	11 (30)	7 (19)	0.4
Arrhythmia	8 (11)	4 (11)	4 (11)	0.8
Permanent arrhythmia	2 (3)	2 (5)	0 (0)
Temporary arrhythmia	6 (8)	2 (5)	4 (11)
LCOS	3 (4)	2 (5)	1 (3)	0.5
Other complications	7 (10)	5 (14)	3 (8)
Max RVOT gradient at D/C (mmHg)	29.8 ± 8.6	30.5 ± 9.1	29.2 ± 8.3	0.7
PR grade at D/C				0.04
Grade 1 (mild)	66 (90)	31 (84)	35 (97)
Grade 2 (moderate)	7 (10)	6 (16)	1 (3)
Grade 3 (severe)	0 (0)	0 (0)	0 (0)

Total (N = 73)

Z-score ≤ -2.85 (N = 37)

Z-score > -2.85 (N = 36)

P-value

Operative data

Age at surgery (months)

4.8 ± 2.9

5.5 ± 3.8

4.2 ± 1.4

0.3

Effective PV orifice precommissurotomy

5.1 ± 1.2

4.4 ± 0.9

5.9 ± 1.0

<0.001

Real PV annulus after the commissurotomy

7.0 ± 1.0

6.3 ± 0.7

7.6 ± 0.7

<0.001

RVSP (% of systemic)

0.01

1/3

23 (32)

9 (24)

14 (39)

1/2

31 (42)

13 (35)

18 (50)

2/3

19 (26)

15 (41)

4 (11)

CPB time (min)

139 ± 31

148 ± 29

130 ± 31

0.008

AOX time (min)

86 ± 22

94 ± 16

79 ± 25

0.001

Postoperative outcomes

ICU stay (days)

3.8 ± 2.6

4.3 ± 3.3

3.3 ± 1.5

0.2

Length of stay (days)

13.2 ± 7.8

13.8 ± 8.0

12.7 ± 7.5

0.5

Postoperative complications

18 (25)

11 (30)

7 (19)

0.4

Arrhythmia

8 (11)

4 (11)

0.8

Permanent arrhythmia

2 (3)

2 (5)

0 (0)

Temporary arrhythmia

6 (8)

2 (5)

4 (11)

LCOS

3 (4)

2 (5)

1 (3)

0.5

Other complications

7 (10)

5 (14)

3 (8)

Max RVOT gradient at D/C (mmHg)

29.8 ± 8.6

30.5 ± 9.1

29.2 ± 8.3

0.7

PR grade at D/C

0.04

Grade 1 (mild)

66 (90)

31 (84)

35 (97)

Grade 2 (moderate)

7 (10)

6 (16)

1 (3)

Grade 3 (severe)

0 (0)

	Total (N = 73)	Z-score ≤ -2.85 (N = 37)	Z-score > -2.85 (N = 36)	P-value
Operative data
Age at surgery (months)	4.8 ± 2.9	5.5 ± 3.8	4.2 ± 1.4	0.3
Effective PV orifice precommissurotomy	5.1 ± 1.2	4.4 ± 0.9	5.9 ± 1.0	<0.001
Real PV annulus after the commissurotomy	7.0 ± 1.0	6.3 ± 0.7	7.6 ± 0.7	<0.001
RVSP (% of systemic)				0.01
1/3	23 (32)	9 (24)	14 (39)
1/2	31 (42)	13 (35)	18 (50)
2/3	19 (26)	15 (41)	4 (11)
CPB time (min)	139 ± 31	148 ± 29	130 ± 31	0.008
AOX time (min)	86 ± 22	94 ± 16	79 ± 25	0.001
Postoperative outcomes
ICU stay (days)	3.8 ± 2.6	4.3 ± 3.3	3.3 ± 1.5	0.2
Length of stay (days)	13.2 ± 7.8	13.8 ± 8.0	12.7 ± 7.5	0.5
Postoperative complications	18 (25)	11 (30)	7 (19)	0.4
Arrhythmia	8 (11)	4 (11)	4 (11)	0.8
Permanent arrhythmia	2 (3)	2 (5)	0 (0)
Temporary arrhythmia	6 (8)	2 (5)	4 (11)
LCOS	3 (4)	2 (5)	1 (3)	0.5
Other complications	7 (10)	5 (14)	3 (8)
Max RVOT gradient at D/C (mmHg)	29.8 ± 8.6	30.5 ± 9.1	29.2 ± 8.3	0.7
PR grade at D/C				0.04
Grade 1 (mild)	66 (90)	31 (84)	35 (97)
Grade 2 (moderate)	7 (10)	6 (16)	1 (3)
Grade 3 (severe)	0 (0)	0 (0)	0 (0)

Table 2:

Open in new tab

Operative data and postoperative outcomes

	Total (N = 73)	Z-score ≤ -2.85 (N = 37)	Z-score > -2.85 (N = 36)	P-value
Operative data
Age at surgery (months)	4.8 ± 2.9	5.5 ± 3.8	4.2 ± 1.4	0.3
Effective PV orifice precommissurotomy	5.1 ± 1.2	4.4 ± 0.9	5.9 ± 1.0	<0.001
Real PV annulus after the commissurotomy	7.0 ± 1.0	6.3 ± 0.7	7.6 ± 0.7	<0.001
RVSP (% of systemic)				0.01
1/3	23 (32)	9 (24)	14 (39)
1/2	31 (42)	13 (35)	18 (50)
2/3	19 (26)	15 (41)	4 (11)
CPB time (min)	139 ± 31	148 ± 29	130 ± 31	0.008
AOX time (min)	86 ± 22	94 ± 16	79 ± 25	0.001
Postoperative outcomes
ICU stay (days)	3.8 ± 2.6	4.3 ± 3.3	3.3 ± 1.5	0.2
Length of stay (days)	13.2 ± 7.8	13.8 ± 8.0	12.7 ± 7.5	0.5
Postoperative complications	18 (25)	11 (30)	7 (19)	0.4
Arrhythmia	8 (11)	4 (11)	4 (11)	0.8
Permanent arrhythmia	2 (3)	2 (5)	0 (0)
Temporary arrhythmia	6 (8)	2 (5)	4 (11)
LCOS	3 (4)	2 (5)	1 (3)	0.5
Other complications	7 (10)	5 (14)	3 (8)
Max RVOT gradient at D/C (mmHg)	29.8 ± 8.6	30.5 ± 9.1	29.2 ± 8.3	0.7
PR grade at D/C				0.04
Grade 1 (mild)	66 (90)	31 (84)	35 (97)
Grade 2 (moderate)	7 (10)	6 (16)	1 (3)
Grade 3 (severe)	0 (0)	0 (0)	0 (0)

	Total (N = 73)	Z-score ≤ -2.85 (N = 37)	Z-score > -2.85 (N = 36)	P-value
Operative data
Age at surgery (months)	4.8 ± 2.9	5.5 ± 3.8	4.2 ± 1.4	0.3
Effective PV orifice precommissurotomy	5.1 ± 1.2	4.4 ± 0.9	5.9 ± 1.0	<0.001
Real PV annulus after the commissurotomy	7.0 ± 1.0	6.3 ± 0.7	7.6 ± 0.7	<0.001
RVSP (% of systemic)				0.01
1/3	23 (32)	9 (24)	14 (39)
1/2	31 (42)	13 (35)	18 (50)
2/3	19 (26)	15 (41)	4 (11)
CPB time (min)	139 ± 31	148 ± 29	130 ± 31	0.008
AOX time (min)	86 ± 22	94 ± 16	79 ± 25	0.001
Postoperative outcomes
ICU stay (days)	3.8 ± 2.6	4.3 ± 3.3	3.3 ± 1.5	0.2
Length of stay (days)	13.2 ± 7.8	13.8 ± 8.0	12.7 ± 7.5	0.5
Postoperative complications	18 (25)	11 (30)	7 (19)	0.4
Arrhythmia	8 (11)	4 (11)	4 (11)	0.8
Permanent arrhythmia	2 (3)	2 (5)	0 (0)
Temporary arrhythmia	6 (8)	2 (5)	4 (11)
LCOS	3 (4)	2 (5)	1 (3)	0.5
Other complications	7 (10)	5 (14)	3 (8)
Max RVOT gradient at D/C (mmHg)	29.8 ± 8.6	30.5 ± 9.1	29.2 ± 8.3	0.7
PR grade at D/C				0.04
Grade 1 (mild)	66 (90)	31 (84)	35 (97)
Grade 2 (moderate)	7 (10)	6 (16)	1 (3)
Grade 3 (severe)	0 (0)	0 (0)	0 (0)

AOX: aortic cross-clamp; CPB: cardiopulmonary bypass; D/C: discharge; ICU: intensive care unit; LCOS: low cardiac output syndrome; PR: pulmonary valve regurgitation; PV: pulmonary valve; RVOT; right ventricular outflow tract; RVSP: right ventricular systolic pressure.

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