Skip to main content

Peptic ulcer disease

Peptic ulcer disease

  • Peptic ulcer: a defect in the gastric or duodenal mucosa with a diameter of at least 0.5 cm and a depth that penetrates through the muscularis mucosae
  • Gastric ulcer: a peptic ulcer of the gastric mucosa, typically located along the lesser curvature in the transitional portion between the corpus and antrum
  • Duodenal ulcer: a peptic ulcer of the duodenal mucosa, usually located on the anterior or posterior wall of the duodenal bulb

Epidemiology

  • Incidence∼ 1 case/1,000 person-years [2]
  • Prevalence
  • Age: The median age of diagnosis is 18–30 years
  • Sex = 
  • Etiology

  • Helicobacter pylori infection
  • Chronic NSAID use
    • Associated with a fourfold risk of developing PUD [9]
    • Increases the risk for complications of PUD
    • Acid hypersecretory states
    • Non-NSAID medications
    • Infections
    • Others
      • Radiation
      • Illicit drug use (e.g., cocainemethamphetamine)
      • Systemic inflammatory diseases (e.g., Crohn diseasesarcoidosis)
      • Mechanical (e.g., foreign body, GI tract obstruction, postsurgical anatomy)
      • Clinical features


      • PUD may be asymptomatic or manifest with a variety of clinical features, e.g., general dyspepsia or complications such as perforation or bleeding.

        Asymptomatic PUD

        • Up to 70% of patients with peptic ulcers do not experience symptoms. [14][15]
        • Patients who take NSAIDs are more likely to have asymptomatic ulcers and present with complications of PUD.

        Symptomatic PUD

        • Abdominal pain
          • The most common symptom of PUD  [16]
          • Commonly located in the epigastrium 
          • Often described as “gnawing” or “burning”
          • Can be related to meal intake depending on the location of the ulcer (see “Clinical symptoms of gastric and duodenal ulcers”)
        • Other associated symptoms
          • Belching
          • Indigestion
          • Gastrointestinal reflux
          • Nausea and/or vomiting
          • Bloating/abdominal fullness


          • Gastric ulcer is associated with pain after light (weight loss) Gorging. Duodenal ulcer is associated with relief after massive (weight gain) Desserts.


      • Diagnostics

        Esophagogastroduodenoscopy (EGDH. 
      • pylori test
      • Treatment

      • Acid suppression medications and antacids   
      • Cytoprotective agents 
      • Antibiotics

Comments

Popular posts from this blog

Malaria

Malaria Malaria Malaria affects 100 million people and kills 1.5million every year. The etiologic agent is a protozoa called plasmodium and the anopheles mosquito acts as a vector. The massive antimalaria campaign from 1950 to 1980 failed and produced resistant mosquito for DDT and resistant plasmodium to chloroquine. Life cycle and pathogenesis The sporozoites transmitted by the mosquito bites pass into the blood stream and invade the hepatocytes by binding hepatocyte receptors for serum proteins thrombospondin and properdin. this occurs because the sporozoites have similar domains to these proteins. Within the liver cell they multiply rapidly and as many as 30,000 merozoites (asexual haploid blood form) are released into the blood when hepatocyte ruptures. ·        The HLA-B53 associated resistance to PF. Infection showed by many Africans appears caused by the ability of HLA-B53 to present liver stage malaria Ag to cytotoxic T...

Regulation of Stroke Volume

Regulation of Stroke Volume The stroke volume is regulated by three variables: the end-diastolic volume (EDV), which is the volume of blood in the ventricles at the end of diastole; the total peripheral resistance, which is the frictional resistance, or impedance to blood flow, in the arteries; and the contractility, or strength, of ventricular contraction. The end-diastolic volume is the amount of blood in the ven- tricles immediately before they begin to contract. This is a work- load imposed on the ventricles prior to contraction, and thus is sometimes called a preload. The stroke volume is directly proportional to the preload; an increase in EDV results in an increase in stroke volume. (This relationship is known as the Frank-Starling law of the heart, discussed shortly.) The stroke volume is also directly proportional to contractility; when the ventricles contract more forcefully,...

Effect of pH and Temperature

Effect of pH and Temperature on Oxygen Transport In addition to changes in P O 2 , the loading and unloading reac- tions are influenced by changes in the affinity (bond strength) of hemoglobin for oxygen. Such changes ensure that active skeletal muscles will receive more oxygen from the blood than they do at rest. This occurs as a result of the lowered pH and increased temperature in exercising muscles. The affinity is decreased when the pH is lowered and increased when the pH is raised; this is called the Bohr effect. When the affinity of hemoglobin for oxygen is reduced, there is slightly less loading of the blood with oxygen in the lungs but greater unloading of oxygen in the tissues. The net effect is that the tissues receive more oxygen when the blood pH is lowered (table 16.8). Since the pH can be decreased by carbon dioxide (through the formation of carbonic acid), the Bohr effect helps to provide more oxygen to the tissue...