Measured bronchial diameter (mm) | DLT size (Fr) | Left bronchial lumen outer diameters from four manufacturers (mm) | |||
Mallinckrodt (St. Louis, MO) | Rusch (Duluth, GA) | Sheridan (Argyle, NY) | Portex (Keene, NH) | ||
≥12 | 41 | 10.6 | 11.5 | 10.7 | 12.0 |
12 | 39 | 10.1 | 10.8 | 9.9 | 11.2 |
11 | 37 | 10.0 | 10.1 | 9.9 | 10.2 |
10 | 35 | 9.5 | 9.4 | 9.3 | 9.7 |
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