Write pathophysiology of Peptic Ulcer Disease and its complications.
Question
Write pathophysiology of Peptic Ulcer Disease and its complications.
Solution
Peptic Ulcer Disease (PUD) is a condition characterized by the formation of ulcers, or sores, in the lining of the stomach or the first part of the small intestine, known as the duodenum.
Pathophysiology of Peptic Ulcer Disease:
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Imbalance between Aggressive and Defensive Factors: The pathophysiology of PUD involves an imbalance between aggressive factors, such as gastric acid and pepsin, and defensive factors, such as mucus, bicarbonate, blood flow to the stomach lining, prostaglandins, and certain growth factors.
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Role of H. pylori: The bacterium Helicobacter pylori (H. pylori) plays a significant role in the development of both gastric and duodenal ulcers. It disrupts the stomach's defense against the acid needed for digestion, making the stomach lining more susceptible to damage from gastric acid.
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Use of NSAIDs: Nonsteroidal anti-inflammatory drugs (NSAIDs) can also contribute to PUD. They inhibit the production of prostaglandins, substances that help protect the stomach lining from the acid.
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Other Factors: Other factors such as smoking, alcohol consumption, and stress can increase acid production or decrease mucus production, thereby increasing the risk of PUD.
Complications of Peptic Ulcer Disease:
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Bleeding: This occurs when an ulcer erodes one of the blood vessels. It can lead to anemia or, if severe, can cause life-threatening bleeding.
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Perforation: This is when an ulcer goes all the way through the stomach or duodenal wall. It's a medical emergency and causes severe, sudden pain.
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Gastric Outlet Obstruction: This is caused by inflammation or scarring from an ulcer. Symptoms include persistent vomiting and weight loss.
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Malignancy: Though rare, stomach ulcers can sometimes become cancerous. This is more common in older adults and those with a history of stomach cancer in the family.
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Penetration: This is when an ulcer continues into an adjacent organ, such as the liver or pancreas.
These complications can be life-threatening and require immediate medical attention.
Similar Questions
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