Anesthesiology Research and Practice

Research Article

Dimensional Variations of Left-Sided Double-Lumen Endobronchial Tubes

Table 2

Outer diameter (OD), presented as lateral diameter (lat) und antero-posterior diameter (ap) of investigated left-sided double-lumen endobronchial tubes (DLT).


Parameter	Size (Fr)	Axis	Sheridan DLT	Mallinckrodt DLT	Portex DLT	Rüsch DLT	VIVASIGHT DLT	Well Lead DLT

OD_MIDDLE	35	lat	13.0 (13.0–13.3)	12.7 (12.7–12.7)	12.4 (12.4–12.7; 94%)	12.5 (12.4–12.6)	13.2 (12.9–13.5)	12.9 (12.4–13.5)
	35	ap	11.3 (11.0–11.5)	11.7 (11.7–11.8)	10.9 (10.8–11.0; 93%)	11.0 (10.9–11.2)	11.7 (11.6–11.9)	11.6 (11.5–12.0)
	37	lat	13.0 (12.5–13.6; 94%)	13.3 (13.3–13.5)	13.3 (13.0–13.5)	13.5 (13.0–13.8)	13.4 (12.9–13.9)	13.8 (13.6–14.0)
	37	ap	11.2 (10.1–11.5; 85%)	12.7 (12.6–12.7)	11.4 (11.2–11.5)	11.4 (11.3–11.6)	13.2 (12.7–13.8)	13.1 (13.0–13.4)
	39	lat	14.4 (14.3–14.6)	14.4 (14.4–14.5)	13.7 (13.5–14.0)	13.4 (12.8–14.0; 93%)	14.3 (14.1–14.3)	14.3 (14.0–14.7)
	39	ap	12.0 (11.9–12.2)	13.5 (13.0–14.0)	11.8 (11.8–11.9; 87%)	12.5 (12.4–14.5)	13.1 (13.1–13.2)	13.6 (13.3–13.8)
	41	lat	14.5 (14.2–14.7)	14.8 (14.7–14.9)	14.5 (14.3–14.7; 96%)	14.4 (14.3–14.7)	15.0 (15.0–15.0)	14.9 (14.8–15.0)
	41	ap	12.8 (12.7–12.8)	13.8 (13.6–13.9)	12.5 (12.3–12.6; 89%)	13.0 (13.0–13.1)	14.0 (14.0–14.0)	14.0 (13.9–14.2)

OD_PTC	35	lat	13.7 (13.5–13.9)	12.8 (12.7–12.8)	12.8 (12.2–13.3)	12.5 (12.3–12.6; 91%)	13.5 (13.2–13.7)	13.3 (13.0–13.5)
	35	ap	11.8 (11.7–11.9)	12.1 (12.1–12.1)	11.6 (11.6–11.9; 93%)	11.7 (11.6–11.7)	12.5 (12.3–12.7)	12.4 (12.1–13.0)
	37	lat	13.9 (13.5–14.3)	13.4 (13.3–13.6; 91%)	14.0 (13.6–14.0)	13.8 (13.5–13.9)	14.7 (14.6–15.0)	14.2 (13.8–14.6)
	37	ap	12.0 (11.9–12.2; 87%)	13.2 (13.1–13.2)	12.0 (12.0–12.1; 87%)	12.0 (11.9–12.0; 87%)	13.7 (13.5–13.9)	13.8 (13.4–14.3)
	39	lat	14.7 (14.4–15.0)	14.2 (14.1–14.3)	14.2 (13.9–14.7)	13.9 (13.1–14.5; 94%)	14.8 (14.7–14.9)	14.8 (14.5–15.0)
	39	ap	12.7 (12.7–12.8; 89%)	13.4 (13.4–13.5)	12.7 (12.5–12.8; 89%)	13.0 (12.9–13.1)	14.3 (13.8–14.9)	14.1 (13.8–14.7)
	41	lat	14.8 (14.5–15.0)	14.9 (14.8–14.9)	15.2 (15.0–15.5)	14.7 (14.4–14.7; 94%)	15.6 (15.5–16.1)	15.6 (15.1–15.9)
	41	ap	13.5 (13.4–13.6)	14.0 (14.0–14.1)	13.3 (13.3–13.4; 91)	13.7 (13.6–13.7)	14.6 (14.3–14.9)	14.6 (14.6–14.7)

OD_DTC	35	lat	14.6 (14.2–14.9)	12.9 (12.8–13.0; 88%)	13.1 (12.8–13.2)	13.1 (13.1–13.2)	13.9 (13.8–14.1)	13.4 (12.5–13.5)
	35	ap	11.8 (11.8–12.0)	12.1 (12.1–12.2)	11.6 (11.6–12.1; 89%)	11.6 (11.6–11.7; 89%)	13.1 (12.8–13.5)	12.5 (12.1–13.3)
	37	lat	13.6 (13.6–14.2; 93%)	13.6 (13.6–13.8; 93%)	13.6 (13.6–14.0; 93%)	13.8 (13.4–14.0)	14.6 (14.4–14.7)	14.3 (14.1–14.5)
	37	ap	12.2 (12.1–12.3)	13.2 (13.2–13.2)	12.0 (11.9–12.2)	11.9 (11.7–12.2; 84%)	14.2 (13.8–14.7)	13.9 (13.5–14.2)
	39	lat	14.8 (14.7–14.9)	14.5 (14.4–14.6)	14.3 (14.0–14.4; 97%)	14.4 (14.2–14.6)	14.8 (14.7–15.0)	14.7 (14.4–15.0)
	39	ap	12.8 (12.8–12.9)	13.4 (13.3–13.5)	12.6 (12.6–12.7; 90%)	12.9 (12.7–13.4)	14.0 (13.9–14.4)	14.0 (13.8–14.3)
	41	lat	15.3 (15.0–15.4)	14.9 (14.8–15.0)	15.1 (15.0–15.2)	14.7 (14.6–14.7; 94%)	15.4 (15.1–15.5)	15.6 (15.3–15.6)
	41	ap	13.6 (13.5–13.7)	14.0 (14.0–14.1)	13.2 (13.1–13.6; 90%)	13.5 (13.5–14.1)	14.6 (14.5–14.7)	14.5 (14.4–14.6)

OD_PBC	35	lat	8.8 (8.3–9.0)	9.0 (8.9–9.1)	7.8 (7.5–8.1; 85%)	9.2 (9.1–9.3)	9.0 (8.5–9.5)	9.0 (8.7–9.1)
	35	ap	10.8 (10.7–10.8)	9.5 (9.4–9.7; 88%)	10.7 (10.6–10.9)	10.7 (10.5–10.9)	10.4 (10.3–10.5)	10.3 (10.2–10.6)
	37	lat	8.8 (8.5–9.1)	10.0 (9.5–10.0)	7.8 (7.7–8.0; 78%)	9.3 (9.1–9.7)	8.9 (8.8–9.0)	9.8 (9.6–9.9)
	37	ap	11.1 (10.8–11.2)	10.8 (10.7–11.0)	10.9 (10.7–11.0)	10.8 (10.7–11.2)	10.7 (10.5–11.3; 96%)	11.1 (11.0–11.2)
	39	lat	8.7 (8.5–9.0)	10.4 (10.3–10.8)	8.1 (7.8–8.4; 78%)	10.4 (9.8–10.8)	9.3 (8.9–9.7)	9.7 (9.3–10.3)
	39	ap	11.3 (11.1–11.5)	10.9 (10.8–11.1)	11.7 (11.2–11.8)	11.6 (11.4–11.7)	10.8 (10.5–11.0; 92%)	11.4 (11.0–12.0)
	41	lat	8.9 (8.8–9.4)	10.2 (10.1–10.4)	8.8 (8.7–9.5; 82%)	10.7 (10.0–11.1)	9.1 (8.9–9.2)	9.9 (9.2–10.0)
	41	ap	12.5 (12.2–12.7)	11.2 (11.0–11.5)	12.3 (12.2–12.4; 90%)	12.1 (11.9–12.2)	12.2 (12.1–12.3)	11.7 (11.5–11.9)

OD_DBC	35	lat	9.0 (8.5–9.3)	9.1 (9.1–9.2)	8.4 (8.0–8.6; 89%)	9.3 (9.1–9.7)	9.4 (9.0–9.8)	8.7 (8.4–9.1)
	35	ap	11.2 (10.9–11.3)	10.2 (10.1–10.3)	9.9 (9.6–10.0; 88%)	10.1 (9.5–11.0)	11.0 (10.8–11.0)	10.7 (10.3–10.9)
	37	lat	9.8 (9.7–10.0)	10.0 (10.0–10.0)	8.6 (8.5–8.7; 86%)	9.9 (9.3–10.3)	9.2 (9.1–9.6)	9.9 (9.6–10.0)
	37	ap	11.4 (11.4–11.9)	11.1 (11.0–11.3)	10.0 (10.0–10.1; 84%)	11.4 (10.6–11.5)	11.4 (11.3–11.5)	11.9 (11.6–12.0)
	39	lat	8.9 (8.7–9.0; 83%)	10.5 (10.0–10.5)	9.6 (9.2–9.7)	10.2 (10.1–10.5)	10.2 (10.0–10.3)	10.7 (10.0–12.0)
	39	ap	11.7 (11.7–11.8)	11.5 (11.0–11.6)	11.4 (11.3–11.5)	11.5 (10.9–11.8)	11.3 (11.3–11.3)	10.7 (9.7–11.8; 91%)
	41	lat	8.9 (8.7–9.2; 84%)	10.6 (10.5–10.7)	10.0 (9.9–10.0)	10.6 (10.3–10.7)	9.6 (9.2–9.7)	10.2 (9.8–10.5)
	41	ap	12.8 (12.5–12.9)	11.5 (11.4–11.7)	11.3 (11.0–11.5; 88%)	12.3 (12.0–12.6)	12.0 (12.0–12.1)	12.0 (12.0–12.3)

OD_MIDDLE = outer diameter in the middle (B) between the beginning of the DLT shaft (A) and the proximal edge of the tracheal cuff (C); OD_PTC = outer diameter at the proximal edge of the tracheal cuff (C); OD_DTC = outer diameter at the distal edge of the tracheal cuff (D); OD_PBC = outer diameter at the proximal edge of the bronchial cuff (E); OD_DBC = outer diameter at the distal edge of the bronchial cuff (F) (see also Figure 1). DLT sizes are in French (= 1/3 mm). Data are displayed as median (minimum-maximum), and dimension is millimeter (mm). The largest diameter of a respective DLT size is shaded in gray (100%), the smallest diameter marked with an asterisk () (proportion of largest OD).