AUTHOR’S CORRECTION
“Lung function after bilateral lower lobe lung volume reduction surgery for α1antitrypsin emphysema”. A.F. Gelb, R.J. McKenna, M. Brenner, R. Fischel, N.
Zamel. Eur Respir J 1999; 14: 928–933.
The values for specific airway conductance (sGaw) and carbon monoxide diffusing capacity of the
lung (DL,CO) were incorrectly reported in table 1 on page 930. The corrected table is reproduced
below:
Table 1. – Physiological data in six patients who were studied before and after lung volume reduction surgery
for α1-antitrypsin emphysema
_____________________________________________________________________________________________
Time*
VC
FVC
FEV1
TLC
FRC
sGaw
RV
DL,CO
PL,st
Sa,O2
L
L
L
L
L
kPa-1·s-1
L
mmol·min-1·kPa-1 kPA
%
Case 1
Preop
1.8
1.5
0.79
8.5
7.1
0.28
6.7
2.2
0.8
91
(43)
(36)
(28)
(136)
(175)
(12)
(266)
(40)
10 months
3.3
3.2
1.2
6.7
4.6
0.34
3.5
3.1
1.2
94
(79)
(78)
(44)
(108)
(114)
(15)
(138)
(57)
24 months
3.5
3.5
1.0
6.3
3.9
0.35
2.8
3.5
1.4
95
(83)
(83)
(35)
(101)
(103)
(15)
(109)
(64)
Case 2
Preop
3.5
3.4
1.1
8.4
5.6
0.40
4.9
NA
1.1
96
(82)
(79)
(37)
(136)
(155)
(17)
(217)
15 months
3.7
3.7
1.1
8.1
5.9
0.50
4.5
NA
1.4
NA
(85)
(85)
(37)
(132)
(159)
(24)
(199)
23 months
4.1
3.9
1.3
8.3
5.4
0.40
4.2
NA
1.4
95
(95)
(92)
(42)
(134)
(145)
(17)
(184)
36 months
3.9
3.7
1.0
8.1
5.8
0.30
4.2
NA
1.3
95
(89)
(85)
(32)
(132)
(157)
(13)
(184)
Case 3
Preop
3.8
3.4
1.1
9.2
6.5
0.40
5.4
4.0
0.9
92
(84)
(76)
(30)
(137)
(173)
(17)
(225)
(50)
22 months
4.4
3.4
1.3
8.4
5.4
0.40
4.0
6.4
1.0
92
(98)
(76)
(35)
(126)
(144)
(17)
(171)
(79)
Case 4
Preop
2.0
1.5
0.6
9.7
7.2
0.33
6.4
1.1
NA
91
(64)
(48)
(24)
(193)
(250)
(12)
(316)
(15)
7 months
2.3
2.1
0.6
6.4
4.9
0.37
4.1
1.6
NA
9.5
(74)
(68)
(24)
(126)
(171)
(12)
(203)
(30)
27 months
2.3
2.2
0.7
7.1
5.7
0.33
4.9
2.3
NA
94
(74)
(74)
(30)
(147)
(197)
(12)
(259)
(38)
Case 5
preop
4.3
3.9
1.2
9.4
6.3
0.40
5.1
4.7
NA
92
(83)
(74)
(31)
(128)
(224)
(17)
(245)
(44)
6 months
4.9
4.9
1.4
8.8
5.8
0.70
3.9
4.0
NA
94
(94)
(94)
(36)
(120)
(207)
(35)
(186)
(38)
Case 6
Preop
3.4
2.9
0.7
10.8
9.1
0.30
7.4
3.0
NA
91
(75)
(64)
(19)
(159)
(230)
(13)
(292)
(34)
1 month
3.5
3.3
1.2
8.3
6.6
0.30
4.8
3.4
NA
NA
(77)
(74)
(33)
(122)
(168)
(13)
(190)
(39)
6 months
3.5
3.1
1.0
9.3
6.6
0.30
5.8
3.4
NA
94
(77)
(66)
(27)
(136)
(168)
(13)
(229)
(39)
Cases 1–4
Preop
2.8±0.5 2.4±0.5 0.9±0.1 9.0±0.2 6.6±0.4
0.35±0 5.9±0.4
2.5±0.7
0.93±0.12 94±1
(68±10) (64±10) (30±2) (151±13) (188±20) (15±3) (256±22)
(35±9)
27±6 months 3.5±0.5 3.2±0.4 1.0±0.1 7.5±0.5 5.2±0.5
0.34±0 4.0±0.4
4.1±1.0
1.2±0.10 94±1
(88±5) (82±4) (33±1) (127±10) (148±17) (14±2) (181±31)
(59±9)
Data are presented with percentage predicted values in parentheses; pre- (preop) and postoperative values for cases 1–4
are given as mean±SEM. *: shown as preop or time postoperation. VC: vital capacity; FVC: forced vital capacity; FEV 1:
forced expiratory volume in one second; TLC: total lung capacity; FRC: functional residual capacity; sGaw: specific
airway conductance; RV: residual volume; DL,CO: single breath diffusing capacity of the lung for carbon monoxide; PL,st:
static lung elastic recoil pressure (at total lung capacity; three patients); Sa,O2: artenal oxygen saturation on room air at
rest; NA: not available.
The values for the conductance of the small airways (Gs) on pages 929 and 930 were also
incorrectly reported. The corrected sentences are reproduced below:
Normals values had been obtained previously in seven healthy subjects aged 61–74 yrs, in whom
Gs was 6±1 L·kPa-1·s-1 (mean±SD) and PL,st at TLC 2.5±0.7 kPa [12].
Preoperatively, the marked reduction in Vmax could be accounted for primarily by the marked
reduction in lung elastic recoil since the slope of the MFSR-curve, i.e. Gs 5.7–7.8 L·kPa-1·s-1 was
similar to the slope of age-matched normal subjects (fig. 3).