Updated July 2026 · 8 min read

Boerhaave Syndrome for ICU Nurses 2026 — When Vomiting Rips the Esophagus and Chest Pain Turns Deadly

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A patient comes in after a bout of violent vomiting — maybe after a heavy meal, maybe after drinking — and now has sudden, severe chest pain that everyone starts working up as a heart attack. The ECG and troponin are unrevealing, but the patient looks far sicker than a benign chest pain should, and when you lay your hand on the base of the neck you feel a strange crackling under the skin, like bubble wrap. This is Boerhaave syndrome: a full-thickness tear of the esophagus from the force of vomiting, spilling stomach contents into the chest. It is rare, it is frequently mistaken for a cardiac or pulmonary event, and it is one of the deadliest gastrointestinal emergencies there is — because every hour of delay lets a chemical and bacterial catastrophe seed the mediastinum. For the ICU nurse, recognizing the pattern and racing the sepsis clock is everything.

What is happening in the chest

The esophagus is a muscular tube with no protective outer layer (no serosa) over much of its length, which makes it vulnerable. During forceful vomiting, pressure inside the esophagus spikes suddenly against a closed upper sphincter, and the wall can blow out — typically a vertical tear in the lower left esophagus. Unlike a , which is only a mucosal split that bleeds, Boerhaave is full-thickness: the tube is now open into the chest. Saliva, swallowed air, gastric acid, food, and mouth bacteria pour into the mediastinum — the central chest compartment holding the heart and great vessels — and often into the pleural space. The result is a ferocious chemical and infectious inflammation (mediastinitis) that quickly drives sepsis and shock. The air that escapes tracks up through the tissues to the neck, which is why you can feel or hear that crackle under the skin.

The Mackler triad and the mimics

The teaching triad — vomiting, then chest pain, then subcutaneous emphysema — is the memorable pattern, though not every patient shows all three. What makes Boerhaave dangerous is how convincingly it impersonates commoner emergencies, and the delay that impersonation causes.

Because the presentation overlaps with heart attack, pulmonary embolism, aortic dissection, pancreatitis, and perforated ulcer, Boerhaave is frequently missed on the first pass — and this diagnosis punishes delay more than almost any other. The mental trigger for the nurse is the combination that does not fit a cardiac story: severe chest pain right after forceful vomiting, a patient sicker than the workup explains, and any crackling air under the skin. That combination should prompt a push for a CT of the chest with contrast (or a contrast esophagram), which shows air and leaked contrast outside the esophagus.

The nurse's role: racing the sepsis clock

Once Boerhaave is suspected or confirmed, the patient is on a countdown, and the nursing priorities are the priorities of a surgical sepsis. Keep the patient strictly NPO — nothing by mouth, because every swallow adds to the leak — and expect a plan for gut rest and nutrition by another route. Anticipate large-volume IV fluids for the distributive/hypovolemic shock and broad-spectrum antibiotics with antifungal coverage started urgently, because the leaking flora includes mouth anaerobes and fungi. Manage the pain, support oxygenation and breathing (a pleural leak may need a chest tube), and monitor relentlessly for the trajectory of sepsis — rising lactate, falling pressure, climbing heart rate, mounting fever. Be ready for rapid escalation to vasopressors and for the patient to go to interventional radiology or the OR.

Source control: the definitive fix

Antibiotics and fluids buy time, but the tear itself has to be dealt with — this is fundamentally a source-control problem. Depending on how early it is caught, how big the tear is, and how sick the patient is, the definitive options include surgical repair of the esophagus, drainage of the contaminated mediastinum and chest, endoscopic stenting or clipping to seal the leak, and wide drainage with staged reconstruction in the sickest patients. For the nurse, the practical realities are managing a patient who will likely have chest tubes and drains, sometimes an esophageal stent, and often a prolonged, complicated ICU course with nutrition delivered around the healing esophagus. Recovery is frequently long, but the patients who do well are overwhelmingly the ones in whom the diagnosis was made and source control achieved early — which loops back to the nurse who recognized that the chest pain after vomiting was not a heart attack.

The nursing bottom line

Boerhaave syndrome is a full-thickness rupture of the esophagus from forceful vomiting that spills gut contents into the chest and drives lethal mediastinitis and sepsis. Recognize the pattern — vomiting, then severe chest pain, then crackling subcutaneous air (the Mackler triad) in a patient who looks sicker than a routine cardiac workup explains — and push early for a contrast CT, because this diagnosis is commonly missed and delay is deadly. The nursing job is a sepsis race: strict NPO, aggressive fluids, urgent broad-spectrum plus antifungal antibiotics, pain and airway support, and constant sepsis monitoring while the team arranges definitive source control by surgery, drainage, or stenting. Catch it early and advocate loudly, and you give the patient their best shot at surviving one of the deadliest GI emergencies.

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Educational content for licensed clinicians. Always follow your facility's protocol and provider orders. Not medical advice.