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Hematemesis is the vomiting of blood. It can be confused with hemoptysis (coughing up blood) or epistaxis (nosebleed), which are more common. The source is generally the upper gastrointestinal tract , typically above the suspensory muscle of duodenum .
Hematemesis (vomiting blood), coffee ground vomiting, melena, hematochezia (maroon-coloured stool) in severe cases Upper gastrointestinal bleeding ( UGIB ) is gastrointestinal bleeding in the upper gastrointestinal tract , commonly defined as bleeding arising from the esophagus , stomach , or duodenum .
An upper source is characterised by hematemesis (vomiting up blood) and melena (tarry stool containing altered blood). About half of cases are due to peptic ulcer disease (gastric or duodenal ulcers). [3] Esophageal inflammation and erosive disease are the next most common causes. [3]
The content of the vomitus (vomit) may be of medical interest. Fresh blood in the vomit is termed hematemesis ("blood vomiting"). Altered blood bears resemblance to coffee grounds (as the iron in the blood is oxidized) and, when this matter is identified, the term coffee-ground vomiting is used.
When bright red blood is vomited, it is termed hematemesis. Hematemesis, in contrast to coffee ground vomitus, suggests that upper gastrointestinal bleeding is more acute or more severe, for example due to a Mallory–Weiss tear, gastric ulcer or Dieulafoy's lesion, or esophageal varices. This condition may be a medical emergency and urgent ...
A lower gastrointestinal bleed is defined as bleeding originating distal to the ileocecal valve, which includes the colon, rectum, and anus. [2] LGIB was previously defined as any bleed that occurs distal to the ligament of Treitz, which included the aforementioned parts of the intestine and also included the last 1/4 of the duodenum and the entire area of the jejunum and ileum. [1]
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Mallory–Weiss syndrome often presents as an episode of vomiting up blood (hematemesis) after violent retching or vomiting, [9] but may also be noticed as old blood in the stool , and a history of retching may be absent. Oftentimes, hematemesis is accompanied by chest, back, or epigastric pain. [10]