Acid Disorders And Peptic Ulcer Disease

Dyspepsia and Peptic Ulcer Disease

Dyspepsia is another word for indigestion and refers to the symptom of pain or discomfort, bloating or a feeling of fullness in the upper abdomen. Peptic ulcer disease specifically refers to a break in the lining of the gastric or duodenal mucosa. Both dyspepsia and peptic ulcer disease are often thought to be due to an over-production of acid. In reality, both dyspepsia and peptic ulcer disease are often due to multiple factors involving but not exclusive to the production of acid, colonization of the stomach by Helicobacter pylori, medications consumed by the patient.

Symptoms

Both dyspepsia and peptic ulcer disease can cause:

abdominal pain,
bloating and abdominal fullness;
nausea and copious vomiting;
loss of appetite and weight loss;

In addition, peptic ulcer disease can present with

hematemesis (vomiting of blood);
melena (black tarry stool, caused by the oxidation of digested blood)
acute peritonitis due to gastric or duodenal perforation. Symptoms include extreme pain, fever, and even shock.

Complications

Gastrointestinal bleeding is the most common complication.

Perforation occurs when an ulcer erodes through the entire lining of the stomach or duodenum resulting in a hole that allows gastrointestinal contents to leak into the peritoneum. This can lead to peritonitis, bleeding, infection and septic shock.

Gastric outlet obstruction is a narrowing of the pyloric canal by scar tissue and swelling caused by an ulcer at the pylorus or exit of the stomach.. Patients often present with early satiety and vomiting.

Cancer should always be considered in the case of an ulcer especially when Helicobacter pylori is present. Biopsies should be obtained from the ulcer edge during upper gastrointestinal endoscopy and a repeat endoscopy should be performed to document complete healing of the ulcer.

Causes

  • Helicobacter Pylori
  • Non-steroidal anti-inflammatory drugs (NSAIDS)
  • Anti-platelet agents e.g clopidogrel, ticlodipine
  • Anti-coagulants e.g. warfarin
  • Stress- stress due to extreme illness such as septic shock requiring intensive care management is well described as a cause of peptic ulcers, which are termed stress ulcers.
  • Diet – Diet though widely thought to influence dyspepsia and peptic ulcer disease has not conclusively been shown to do so with the exception of excessive alcohol intake, which in association with Helicobacter pylori has been shown to increase the risk of peptic ulcer disease.
  • Other causes of peptic ulcer disease include: gastric ischemia, drugs, metabolic disturbances, infections such as cytomegalovirus (CMV), radiotherapy, Crohn’s disease, and vasculitis. Gastrinomas (Zollinger–Ellison syndrome), rare gastrin-secreting tumors can also lead to increased acid production and ulcers.
  • Smoking – is still debated as a risk factor for peptic ulcers.

Diagnosis

The assessment and management of non-ulcer dyspepsia and peptic ulcer disease generally relies on taking a good history and physical examination of the patient and eliminating potential causes such as medications the patient is on, whilst making sure the patient does not have any red flag symptoms that warrant immediate attention. Most patients can be managed with a short trial of over the counter medication such as antacids for symptom relief. If symptoms persist, then further investigation for the detection of Helicobacter pylori or an upper gastrointestinal endoscopy may be necessary.

Treatment

Definitive treatment of long-term non-ulcer dyspepsia or peptic ulcer disease has to be balanced with potential side-effects of long-term medication that have been highlighted in recent years. The foundations of treatment though remain the same including the exclusion of any underlying cause of illness and the eradication of Helicobacter pylori. The cornerstone of treatment for both dyspepsia and peptic ulcer is acid suppression using proton-pump inhibitors or more recently, potassium channel Inhibitors. Ulcers, in addition, may require endoscopic treatment if they are complicated by bleeding or surgical treatment in the event of perforation or uncontrollable hemorrhage.

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