What is the recommended technique for inserting a large‑bore esophageal suction tube (orogastric/nasogastric) to divert massive vomiting before endotracheal intubation when suction‑assisted laryngoscopy airway decontamination (SALAD) cannot keep up?

Esophageal ETT Placement for Massive Vomiting During Intubation

When SALAD technique cannot keep up with massive vomiting, intentional blind esophageal intubation with an endotracheal tube can be used as a rescue maneuver to divert ongoing vomitus away from the airway, allowing for subsequent successful tracheal intubation after brief suctioning. This technique has been described in case reports but is not addressed in current major airway guidelines 1.

Evidence Base and Context

The 2023 Society of Critical Care Medicine RSI guidelines 2 recommend nasogastric tube (NGT) decompression when benefits outweigh risks in patients at high risk of regurgitation, but this is a best practice statement based on expert consensus rather than high-quality evidence. The guidelines acknowledge that gastric decompression can reduce intragastric pressure and volume, potentially lowering aspiration risk 2.

However, standard NGT placement assumes you have time before intubation—which is not the case when facing overwhelming vomiting during an active intubation attempt.

The Esophageal ETT Technique

The published case report 1 describes this approach in an 82-year-old woman with massive ongoing vomitus that overwhelmed all suction capabilities:

• Blind esophageal intubation was performed with a standard endotracheal tube
• This successfully diverted ongoing vomitus away from the airway
• After brief suctioning, the larynx was quickly visualized
• Successful tracheal intubation followed

Practical Algorithm for Massive Vomiting

1. First-line: SALAD technique with large-bore rigid suction (5/8-inch or larger bore significantly outperforms standard 1/4-inch suction for particulate matter 3)

2. If SALAD overwhelmed:

   • Consider immediate esophageal ETT placement
   • Use blind technique or video laryngoscopy to guide tube into esophagus
   • This acts as a conduit to divert vomitus away from glottis
   • Maintain continuous suction through the esophageal tube if possible

3. After esophageal diversion established:

   • Perform rapid oropharyngeal suctioning
   • Visualize glottis (should now be clear)
   • Perform definitive tracheal intubation
   • Remove or leave esophageal tube based on clinical judgment

Important Caveats

• This is an off-label, rescue technique with minimal published evidence (single case report 1)
• Not mentioned in 2023 SCCM RSI guidelines 2 or 2025 Difficult Airway Society guidelines 4
• Risk of esophageal trauma exists, though likely acceptable given alternative of failed intubation with ongoing aspiration
• Do not confuse this with routine NGT placement—this is an emergency airway rescue maneuver during active intubation attempts
• The esophageal ETT serves as a large-bore conduit (much larger than standard NGT) for high-volume vomitus

Equipment Considerations

Large-bore suction systems (5/8-inch open-bore tip with 3/4-inch tubing) reduce evacuation time by 10-40 seconds compared to standard suction for viscous/particulate material 3. Have this available alongside standard SALAD equipment. The esophageal ETT technique essentially creates an even larger conduit when external suction cannot keep pace.

This technique should be reserved for true rescue scenarios where standard airway management and SALAD have failed due to overwhelming vomitus volume, and the alternative is likely aspiration with failed intubation or emergency surgical airway.