PMC8081121_01
PMC8081121_02
(a) Application of rightward [arrow] external tracheal pressure (b) Proper positioning of inflated bronchial blocker in left main-stem bronchus
ACA-24-105-g001.jpg
PMC8081121_02_ACA-24-105-g001.jpg
F1
ETT. A 3.8 mm FOB was passed via the ETT. ETM using gentle rightward pressure applied to the left side of the trachea facilitated appropriate advancement of the BB into the left main-stem bronchus under fiberoptic guidance in the first attempt [Figure 1].
(a) Application of leftward [arrow] external tracheal pressure (b) Proper positioning of deflated bronchial blocker in right main-stem bronchus prior to inflation
ACA-24-105-g002.jpg
PMC8081121_02_ACA-24-105-g002.jpg
F2
Subsequently, in the supine position, the BB was deflated, slightly withdrawn, and re-advanced under FOB visualization into the right main-stem bronchus for right lung isolation, using leftwardpressure applied to the right side of the trachea [Figure 2].
PMC8081121_03