Figure 1From: A modified technique to improve the outcome of intubation with a left-sided double-lumen endobronchial tube Directions of angulation of the double-lumen endobronchial tube. A. Angulation leaving the tracheal orifice exposed (TOE group). B. Angulation concealing the tracheal orifice (tracheal orifice concealed, TOC group). The distal tracheal orifice is indicated by the arrow.Back to article page