Explorations of Unilateral Diaphragmatic Paralysis
Table 1
Results summary, according to diaphragmatic status, with on one side confirmed diaphragmatic paralysis, and on the other side normal diaphragm. value was calculated using Mann-Whitney nonparametric test between these two groups, and was significant for all presented variables, except Pes, sniff.
Age
Paralysis side
VC
FEV1
FRC
Pes, sniff
Pes, mip
Pdi, cms
Pdi, ums (left)
Pdi, ums (right)
Paradox
(years)
Left/right/no
(% pred)
(% pred)
(% pred)
(cmH2O)
(cmH2O)
(cmH2O)
(cmH2O)
(cmH2O)
(y/n)
Patients with diaphragmatic paralysis
#1
58
Right
28.5
25.1
#
42
32
8.0
6.0
5.0
y
#2
66
Right
84.4
76.8
72.8
71
47
13.0
12.0
4.0
y
#3
65
Right
100.0
100.0
100.0
54
69
10.6
7.4
4.0
y
#4
67
Right
34.1
40.5
83.5
53
70
5.0
10.0
4.0
y
#5
71
Right
71.3
60.5
143.8
60
44
10.0
5.0
0.0
n
#6
64
Right
57.3
58.9
54.0
57
61
3.0
6.0
3.0
y
#7
46
Left
106.6
93.8
88.8
100
85
13.0
8.0
20.0
n
#8
68
Right
88.8
61.7
64.8
48
#
6.0
8.0
4.0
y
#9
62
Left
85.1
86.0
68.2
65
69
18.0
9.0
19.0
n
#10
72
Left
115.8
117.3
93.5
110
82
20.0
6.0
6.0
n
#11
75
Right
106.7
89.7
95.0
71
63
20.0
11.0
8.0
n
#12
74
Right
92.5
75.3
109.5
72
72
17.7
9.6
7.1
n
#13
59
Left
70.7
75.9
50.1
70
74
18.0
4.0
5.0
y
#14
52
Right
79.6
80.2
67.4
71
89
13.0
6.0
8.0
y
#15
56
Left
73.0
70.1
178.8
91
69
21.0
8
8.0
n
Mean ± SE
Patients without diaphragmatic paralysis
#16
51
No
107.2
97.3
106.0
92
90
34.0
19.0
15.0
n
#17
38
No
95.5
90.0
104.2
75
75
32.0
18.3
19.9
n
#18
32
No
96.4
93.8
88.7
116
91
25.0
25.0
23.0
n
#19
74
No
92.3
95.8
98.0
67
53
23.0
13.0
12.0
n
#20
41
No
107.8
102.3
92.5
80
122
36.0
19.0
16.0
n
#21
42
No
99.3
100.0
114.1
84
#
29.0
18.0
13.0
n
#22
44
No
87.4
89.6
115.4
61
73
18.0
15.0
16.0
n
Mean ± SE
value
<0,01
0,05
0,01
0,1
0,08
0,05
<0,01
<0,01
<0,01
VC: vital capacity. FEV1: forced expiratory volume in one second. FRC: functional residual capacity. Pes, sniff: esophageal pressure during strong sniff. Pes, mip: maximal esophageal inspiratory pressure. Pdi, cms: transdiaphragmatic pressure induced by cervical bilateral phrenic nerve magnetic stimulation. Pdi, ums: transdiaphragmatic pressure induced by unilateral phrenic nerve magnetic stimulation.
