Nursing care
Balloon tamponade tube complications: migration, airway obstruction and pressure checks
Written and reviewed by Dana Whitfield, RN, MSN · 4 min read · Updated October 2026
Short answer
Sengstaken-Blakemore and Minnesota tubes compress bleeding varices with gastric and oesophageal balloons as a temporary bridge to definitive treatment. The airway is secured first. Nurses check the tube's exit mark, balloon pressure and traction, and keep scissors at the bedside: if the tube migrates and obstructs the airway, the balloon lumens are cut to deflate them.
Purpose and why the tube is temporary
Balloon tamponade is used for variceal bleeding that cannot be controlled with medication and endoscopy, or when those treatments are not immediately available. A gastric balloon is inflated in the stomach and pulled up against the junction with the oesophagus; an oesophageal balloon may also be inflated. The Minnesota tube adds a port to aspirate the oesophagus above the balloons.
These tubes buy time for endoscopy or another definitive procedure. Bleeding often recurs after deflation, and prolonged pressure damages the mucosa, so use is kept as short as the team's protocol allows. Because of the aspiration and airway risks, guidance expects the patient to be intubated before insertion.
Airway obstruction from tube migration
If the gastric balloon deflates, ruptures or is pulled too hard, the tube can move upward so that a balloon sits in the oropharynx and blocks the airway. Incorrect gastric balloon position in the oesophagus can also compress the airways. Sudden stridor, respiratory distress or rising ventilator pressures signal this emergency.
Scissors are kept at the bedside so that, in an airway emergency, the balloon lumens can be cut to deflate both balloons and the tube removed. This is taught as a response for a patient who is not intubated and becomes obstructed. Call for emergency help at the same time, and follow the unit's procedure for who acts.
Pressure checks, traction and position marking
Mark the tube where it exits the mouth or nose and check the mark hourly and after every position change; report outward movement. Maintain the ordered traction so it hangs freely and in line with the tube. Measure oesophageal balloon pressure with a manometer at the intervals your protocol sets, usually hourly, and record it.
Changes to balloon volume or pressure are made by the physician or as delegated by protocol. The gastric balloon is never deflated while the oesophageal balloon remains inflated, because the oesophageal balloon could then slip upward. Planned periodic deflation of the oesophageal balloon reduces pressure injury. Label each port clearly so that inflation, aspiration and drainage lumens are never confused, and keep the manometer and clamps at the bedside.
Other complications and ongoing care
Oesophageal necrosis and perforation can follow overinflation or an incorrectly positioned gastric balloon. Watch for chest or back pain, subcutaneous air and deterioration. Aspiration pneumonia is a risk, so keep the head of the bed raised as ordered and maintain suction to the gastric and oesophageal aspiration lumens, which also removes blood and secretions.
Assess drainage hourly and report fresh bleeding, provide oral and nasal care, and check the mucosa where the tube exits for pressure damage. Removal is staged: the oesophageal balloon is deflated first, the patient is observed for rebleeding, then the gastric balloon, with bleeding recurring in a substantial proportion of patients.
Apply the knowledge to a study scenario
In a hypothetical item, a client with a Sengstaken-Blakemore tube suddenly develops stridor and severe respiratory distress, and the exit mark has moved outward. Options include increasing traction, raising the head of the bed and giving oxygen, or cutting the balloon lumens and removing the tube while calling for help. Cutting the lumens addresses the obstruction.
Increasing traction could worsen migration, and oxygen alone does not relieve a blocked airway. Afterwards, prepare for airway management and bleeding control. Document the exit mark readings, pressures, traction, drainage, the event and the response. Exam questions use this scenario to test recognition that the tube itself is the cause. In an intubated patient, rising airway pressures with a moving exit mark raise the same concern and need immediate medical review.
Sources and further reading
RCEM Learning: Balloon tamponade complications. Oesophageal necrosis and perforation, aspiration, proximal migration causing airway obstruction and time limits.
Winnipeg Regional Health Authority: Esophagogastric tamponade tube clinical practice guideline. Intubation before insertion, exit marking, traction, hourly pressure checks, deflation order, suction, drainage and staged removal.
Deranged Physiology: CICM 2013 Paper 1 Question 30 (Sengstaken-Blakemore tube). Cutting balloon lumens and removing the tube for airway obstruction, intubation and duration limits.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our gastrointestinal practice questions are the closest set to what this page covers.
Common questions
Why are scissors kept at the bedside of a patient with a balloon tamponade tube?
If the tube migrates and a balloon obstructs the airway, cutting the balloon lumens deflates both balloons so the tube can be removed quickly while help is called.
Why is the gastric balloon never deflated first?
With the gastric balloon down and the oesophageal balloon still inflated, the tube can slide upward and the inflated oesophageal balloon may obstruct the airway or injure the oesophagus.
Why must the patient's airway be secured before insertion?
Insertion and balloon migration carry high risks of aspiration and airway obstruction, so guidance expects intubation before a tamponade tube is placed.