Oesophageal Tears

Oesophageal tears are ruptures to any part of oesophageal wall.

Although rare, full ruptures have a mortality of between 50 – 80% so early recognition and treatment is essential.

There is a wide spectrum in the severity of oesophageal tears, the main two subcategories being superficial mucosal tears (Mallory-Weiss tears) and full thickness ruptures.

Figure 1:  Posterior view of the oesophagus in the neck and thorax


Oesophageal Perforation

Oesophageal perforation is a full thickness rupture of the oesophageal wall; if it is spontaneous (often due to vomiting) it is often called Boerhaave’s syndrome.

Perforation will result in leakage of stomach contents into the mediastinum and pleural cavity, which triggers a severe inflammatory response which will rapidly become overwhelming, resulting in a physiological collapse, multi-organ failure, and death. Rapid identification and management is therefore essential.

Aetiology

The two most common causes are iatrogenic (such as endoscopy) or after severe forceful vomiting.

The most common site of perforation is just above the diaphragm in the left postero-lateral position, although it can occur elsewhere in the oesophagus.

They are rare, with an incidence of 3.1 per million per year and most cases occur in patients with an otherwise normal oesophagus.

Clinical Features

The classic picture is of a patient who presents with severe retrosternal chest pain, respiratory distress, and subcutaneous emphysema* following severe vomiting or retching.

*Subcutaneous emphysema is frequently absent and the full combination of vomiting, chest pain and subcutaneous emphysema (Mackler’s triad) is only seen in only ~15% of patients. 

Investigation

Routine bloods, including a group and save, must be taken urgently for all those with suspected perforation

Initial imaging via a CXR may demonstrate evidence of pneumomediastinum; intra-thoracic air-fluid levels may also be seen.

The investigation of choice is a CT chest abdo pelvis scan with IV and oral contrast* (Fig. 2).  This may show air or fluid in the mediastinum and pleural cavity; leakage of oral contrast from the oesophagus into the mediastinum or chest is pathognomonic.

*The CT scan can miss small leaks and has a sensitivity of ~85%.

However, if there is a high level of clinical suspicion (based on the history and examination) the patient should have an urgent endoscopy in theatre.

Figure 2: CT chest-abdomen imaging showing Boorhaave (A) axial image showing extraluminal air surrounding the trachea and oesophagus (B) sagittal image showing discontinutity in the posterolateral distal oesophageal wall

Management

These patients are septic and often haemodynamically unstable.  Urgent, aggressive resuscitation is therefore essential.  Ensure high flow oxygen, IV access, fluid resuscitation and broad spectrum antiobiotics are given immediately.

Definitive management varies depending on whether the perforation was spontaneous or iatrogenic and on the age and comorbidity of the patient.

The principles of definitive management (both operative and non-operative) following initial resuscitation involves (1) control of the oesophageal leak, (2) eradication of mediastinal and pleural contamination (3) decompress the oesophagus (typically a trans-gastric drain or endoscopically-placed NG tube) (4) nutritional support

Surgical

The majority of patients with a spontaneous perforation will need immediate surgery to control the leak and wash out of the chest.  This is almost always via a thoracotomy.

Patients also need an on-table OGD to determine the site of perforation and therefore the site of the incision.

Leakage is common and the patients should have a CT scan with contrast at 10-14 days before starting oral intake.  They should therefore have a feeding jejunostomy inserted at the time of surgery for nutrition.

Repairing the Defect

A variety of techniques can be used when repairin the perforation, partly dependent on the length of time between injury and surgery.

One example is using a flap from the diaphragm to buttress it and then insertion of a trans-gastric drain through the fundus of the stomach (via a laparotomy).

This drain both reduces the pressure in the oesophagus (by splinting the Gastro-oesophageal junction) and drains the oesophagus.

Non-Operative Management

Patients with iatrogenic perforations are often more stable than those with spontaneous perforations* and may be suitable for non-operative management.

Other patients potentially suitable for non-operative management include those with minimal contamination, a contained perforation, no symptoms or signs of mediastinitis, or no solid food in pleura or mediastinum.

Patients with spontaneous perforations who are too old or with extensive comorbidity to undergo surgery may also be candidates for non-operative treatment

*This is because the patient will usually have been NBM before the procedure and therefore there is not the forceful vomiting associated with spontaneous perforations and does not have the associated contamination (and physiological impact).

Non-operative treatment involves:

  • Initial suitable resuscitation and transfer to Intensive Care / High Dependency Unit
  • Antibiotic and anti-fungal cover
  • Nil by mouth for 1 to 2 weeks
  • Endoscopic insertion of an NG tube
  • Large-bore chest drain insertion
  • Total Parenteral Nutrition (TPN) or feeding jejunostomy insertion

Patients with significant co-morbidities who are clinically stable with only a small perforation may be suitable for conservative management.

Prognosis

Morbidity and mortality for perforation is high (between 50–80%) and therefore early identification and treatment will most influence outcomes.


Mallory-Weiss Tears

Mallory-Weiss tears are lacerations in the oesophageal mucosa, usually at the gastro-oesophageal junction.

They tends to occur after a period of profuse vomiting, and in turn results in a short period of haematemesis.  They account for approximately 5% of all cases of haematemesis.

They are generally small and self-limiting, in the absence of clotting abnormalities or anti-coagulation drugs.  Presentation with haemorrhagic shock is possible but rare.

Investigation and Management

The investigation and management of Mallory-Weiss tears is the same as for any other upper GI bleed (see here).

Although rare, any patient presenting with hypotensive shock requires urgent resuscitation, with fluid resuscitation and bloods taken, including group and save (+/- cross match as needed).

Key Points

  • Oesophageal rupture is a surgical emergency and patients deteriorate rapidly, rapid identification and management is therefore essential.
  • If there is significant clinical suspicion of perforation, the patient will need an OGD in theatre urgently
  • Many factors will influence whether the patient will require surgical or non-operative management
  • Mallory-Weiss tears are lacerations in the oesophageal mucosa, however are generally small and self-limiting

Further Reading

Spontaneous rupture of the oesophagus
Griffin SM et al., The British Journal of Surgery

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