Abstract
BackgroundAcute esophageal necrosis is defined as necrosis of the esophageal mucosa causing diffuse black pigmentation of the esophagus, the so-called black esophagus from its endoscopic findings. The prevalence is only 0.001~0.2%, while its mortality rate is up to 32%. However, most of the cases are fatal by comorbidities.Case presentationA 67-year-old female with diabetes mellitus was transported to the emergency room with hematemesis and disordered consciousness. She had suffered from nausea and epigastralgia for 2 days. The patient’s general status was shock evidenced by vital signs, and she did not respond to rehydration. After intubation, emergency endoscopic examination revealed black pigmentation of the esophageal mucosa, and the condition was diagnosed as acute esophageal necrosis. Antibiotics and plasmapheresis had been started, and the patient gradually stabilized. One week after the admission, esophagus perforation was suspected from the significant increase of the right pleural effusion and free air at the esophagus wall and the mediastinum on CT scan. Emergency thoracoscopy revealed an edematous esophagus which was colored black. Esophagectomy with esophagostomy and enterostomy was performed.On resected specimen, mucosal necrosis was found only on the squamous epithelium, with three perforating areas in the middle to lower thoracic esophagus. No signs of inflammation or ischemia were found on the gastric mucosa of the esophagogastric junction. After the operation, the patient recovered generally well, except for the severe stenosis of the cervical esophagus. Cervical esophagectomy, tracheotomy, and anterior thoracic route reconstruction with free jejunum interposition and gastric tube were performed 9 months after the first surgery. No postoperative complications occurred; on the 37th day after the operation, the patient was eating well and was transferred to continue swallowing rehabilitation.ConclusionIt is important to detect the esophagus perforation and mediastinitis early and thereby not to miss the chance of surgical intervention to save the patient’s life. Surgery should be minimized, and reconstruction should be considered next.If the cervical esophagus is also affected, reconstruction surgery should be performed by removing cervical esophagus and anastomosing it to the hypopharynx using a gastric tube and free jejunum interposition as needed.
Highlights
ConclusionIt is important to detect the esophagus perforation and mediastinitis early and thereby not to miss the chance of surgical intervention to save the patient’s life
Acute esophageal necrosis is defined as necrosis of the esophageal mucosa causing diffuse black pigmentation of the esophagus, the so-called black esophagus from its endoscopic findings
If the cervical esophagus is affected, reconstruction surgery should be performed by removing cervical esophagus and anastomosing it to the hypopharynx using a gastric tube and free jejunum interposition as needed
Summary
Esophagus perforation and mediastinitis are lethal complications of AEN, and early detection is required to avoid life-threatening situations. Thoracoscopic drainage and subtotal esophagectomy should be attempted to manage these situations. If the cervical esophagus is affected and exhibits stricture, this area must be removed, and an anastomosis needs to be performed at the hypopharynx using the appropriate graft
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