During retrieval of a foreign body from the left mainstem bronchus, the object is pushed into the right mainstem and ventilation becomes impossible; the most appropriate next step is to

During retrieval of a foreign body from the left mainstem bronchus, the object is pushed into the right mainstem and ventilation becomes impossible; the most appropriate next step is to

• A. Intubate the left mainstem.
• B. Intubate the right mainstem.
• C. Attempt the Heimlich maneuver.
• D. Institute cardiopulmonary bypass.

Answer: (A)

When a foreign body has migrated to the opposite mainstem and ventilation is lost, the priority is to restore oxygenation by ventilating the healthy lung while the team continues to manage the object. Placing the endotracheal tube into the left mainstem bronchi isolates and ventilates the left lung, bypassing the obstructed right mainstem and allowing a stable airway for continuing bronchoscopy to retrieve the object. This selective left mainstem intubation reestablishes ventilation quickly and provides a workable field for removal. Intubating the right mainstem would place ventilation through a path likely blocked by the foreign body, offering little if any improvement and could further obstruct airflow. The Heimlich maneuver isn’t compatible with ongoing anesthesia and bronchoscopy and is unlikely to be effective in this controlled setting. Cardiopulmonary bypass is not an immediate or appropriate rescue step for acute airway obstruction during foreign body retrieval.

When a foreign body has migrated to the opposite mainstem and ventilation is lost, the priority is to restore oxygenation by ventilating the healthy lung while the team continues to manage the object. Placing the endotracheal tube into the left mainstem bronchi isolates and ventilates the left lung, bypassing the obstructed right mainstem and allowing a stable airway for continuing bronchoscopy to retrieve the object. This selective left mainstem intubation reestablishes ventilation quickly and provides a workable field for removal.

Intubating the right mainstem would place ventilation through a path likely blocked by the foreign body, offering little if any improvement and could further obstruct airflow. The Heimlich maneuver isn’t compatible with ongoing anesthesia and bronchoscopy and is unlikely to be effective in this controlled setting. Cardiopulmonary bypass is not an immediate or appropriate rescue step for acute airway obstruction during foreign body retrieval.