Dimensional Variations of Left-Sided Double-Lumen Endobronchial Tubes
Table 4
Measured length of investigated left-sided double-lumen endobronchial tubes (DLTs).
Parameter
Size (Fr)
Sheridan DLT
Mallinckrodt DLT
Portex DLT
Rüsch DLT
VIVASIGHT DLT
Well Lead DLT
A–C
35
260.0 (254.0–261.0)
253.0 (252.0–254.0)
318.5 (315.0–322.0)
210.0 (207.0–214.0; 66%)
241.0 (235.0–247.0)
250.0 (248.0–253.0)
37
258.0 (256.0–261.0)
250.5 (249.0–252.0)
317.5 (316.0–319.0)
215.0 (214.0–215.0; 68%)
241.0 (241.0–243.0)
252.5 (248.0–256.0)
39
263.0 (262.0–263.0)
248.0 (247.0–248.5)
307.5 (304.0–308.0)
234.5 (233.0–236.0; 76%)
241.0 (238.0–243.0)
251.0 (246.0–256.0)
41
264.5 (264.0–265.0)
249.5 (247.0–251.0)
304.5 (301.0–308.0)
235.0 (234.0–236.0; 77%)
242.0 (239.0–246.0)
243.0 (239.0–247.0)
C-D
35
37.3 (36.0–40.0)
40.0 (40.0–40.0)
32.0 (32.0–32.8; 73%)
36.3 (36.0–37.0)
44.0 (43.7–44.3)
44.0 (43.0–45.0)
37
36.8 (35.5–38.0; 86%)
43.0 (42.0–43.5)
38.1 (37.0–39.0)
37.0 (35.0–39.5)
41.9 (41.7–43.0)
43.0 (42.0–44.0)
39
38.3 (38.0–39.0)
43.0 (42.0–44.0)
39.0 (37.0–42.0)
37.5 (36.5–39.0; 83%)
45.2 (45.0–45.5)
42.0 (41.0–42.5)
41
38.0 (37.0–40.0; 86%)
39.0 (38.0–39.1)
42.9 (41.0–44.0)
38.1 (38.0–39.0)
44.2 (43.3–46.0)
42.3 (42.0–43.0)
D-E
35
38.0 (36.0–40.0)
35.0 (35.0–35.0)
40.0 (39.0–41.0)
34.5 (31.0–38.0:78%)
36.5 (35.6–37.0)
44.5 (39.0–48.0)
37
43.5 (42.0–45.0)
34.3 (34.0–35.0; 79%)
39.5 (37.0–42.0)
40.5 (39.0–41.0)
40.8 (40.0–41.0)
42.5 (38.0–46.0)
39
48.0 (45.0–51.0)
40.0 (38.5–42.0)
38.5 (35.0–41.0; 80%)
42.0 (40.0–43.0)
39.0 (37.0–40.3)
44.5 (40.0–48.0)
41
42.0 (38.0–45.0)
47.0 (44.0–49.0)
39.0 (36.0–42.0; 76%)
52.0 (51.0–53.0)
40.3 (39.0–41.8)
51.5 (51.0–52.0)
E-F
35
23.0 (23.0–23.5)
16.8 (16.5–17.0)
24.5 (23.0–25.3)
17.4 (16.0–18.3)
14.9 (14.3–15.0; 61%)
15.7 (15.4–16.1)
37
22.5 (22.0–23.0)
19.5 (19.0–20.0)
25.4 (24.8–27.0)
16.6 (16.0–18.0)
17.1 (17.0–17.6)
15.9 (15.1–16.5; 63%)
39
18.0 (18.0–18.3)
18.5 (17.5–19.0)
30.0 (30.0–30.3)
19.0 (18.0–19.0)
17.3 (16.0–17.6)
15.8 (15.0–16.0; 53%)
41
21.5 (21.0–22.0)
17.1 (17.0–18.0)
30.8 (30.0–31.0)
16.5 (16.3–17.0)
17.1 (17.0–17.5)
15.6 (15.0–16.1; 51%)
F-G
35
8.1 (7.0–9.5)
11.1 (10.9–11.3)
4.6 (4.0–5.7; 28%)
6.0 (5.0–6.5)
16.4 (15.5–17.0)
11.2 (10.3–11.5)
37
8.0 (7.3–8.1)
12.0 (11.5–12.1)
4.8 (4.5–4.8; 32%)
7.1 (6.0–7.6)
14.9 (12.5–18.0)
12.0 (11.9–12.7)
39
10.0 (9.5–10.0)
11.7 (11.1–11.9)
6.6 (6.3–6.8)
6.0 (5.0–6.1; 46%)
13.1 (12.9–14.0)
10.6 (10.5–11.0)
41
8.6 (8.0–9.0)
14.2 (14.0–14.4)
7.0 (6.8–7.5; 48%)
7.5 (7.0–8.0)
14.6 (14.0–15.0)
10.5 (10.0–11.7)
A–G
35
366.4 (356.0–374.0)
355.9 (354.4–357.3)
419.6 (413.0–426.7)
304.1 (295.0–313.8; 72%)
352.7 (344.1–360.3)
365.4 (355.6–373.6)
37
368.8 (362.8–375.1)
359.3 (355.5–362.6)
425.3 (419.3–431.8)
316.2 (310.0–321.1; 74%)
355.6 (352.1–362.6)
365.9 (355.0–375.2)
39
377.3 (372.5–381.3)
361.2 (356.1–365.4)
421.6 (412.3–428.0)
339.0 (332.5–343.1; 80%)
355.5 (348.9–360.4)
363.8 (352.5–373.5)
41
374.6 (368.0–381.0)
366.8 (360.0–371.5)
424.1 (414.8–432.5)
349.1 (346.3–353.0; 82%)
358.2 (352.3–366.3)
362.8 (357.0–369.8)
A–C = distance from bifurcation (beginning of DLT shaft, A) to the proximal edge of the tracheal cuff (C); C-D = length of the tracheal cuff; D-E = distance between distal edge of the tracheal cuff (D) to the proximal edge of the bronchial Cuffs (E); E-F = length of the bronchial cuff; F-G = distance between the distal edge of the bronchial Cuffs (F) to the tip of the tube (G); A–G = tube length from bifurcation (A) to the tip of the tube (G) (see also Figure 1). DLT sizes are in French (= 1/3 mm). Data are displayed as median (minimum–maximum) given as millimeter (mm). The greatest length of a respective DLT size is shaded in gray (100%), and the smallest diameter is marked with an asterisk () (proportion of largest OD).
