Disorders of gastric acid and ulceration Flashcards
Dyspepsia (indigestion)
The following symptoms
heartburn, early satiety (feeling full) , bloating + nausea often occur after eating or drinking.
If dyspepsia is accompanied by ‘alarm features’
bleeding, dysphagia, recurrent vomiting or weight loss… urgent investigation is required.
- This also applies to patients over the age of 55 with unexplained, recent-onset dyspepsia that has not responded to treatment.
Lifestyle advice
- Avoid excess alcohol
- Avoid aggravating foods e.g. fats
- Stop causative medications
- Weight loss
- Smoking cessation
- Raising head of the bed
Dyspepsia Treatment
Treatment of dyspepsia is a Proton Pump Inhibitor (PPI) for up to 4 weeks.
Patients who do not respond to an initial trial of a PPI, should be tested for Helicobacter Pylori and given eradication therapy if H. Pylori is present.
Eradication of H. pylori involves
acid inhibition and antibacterial treatment. Treatment should not be carried out unless presence of H. pylori is confirmed.
H. pylori can be diagnosed using a breath test, stool sample or blood test however patient cannot be tested for this if they have been on an ANTIBIOTIC in the last 4 weeks OR ANTI-SECRETORY in the last 2 weeks.
Initial treatment is a one-week triple-therapy with a PPI, clarithromycin and amoxicillin or metronidazole
This treatment usually works, but if ulceration is bad then treatment with a PPI or H2 Antagonist
may need to be continued for a further 3 weeks.
Antacids
Antacids can often relieve symptoms in ulcer dyspepsia and GORD. They either contain Magnesium or Aluminium.
- They are usually given after meals and at bedtime + liquid preparations are better.
Antacids should not be taken at
the same time as other drugs, as they damage their enteric coating
- Space doses 2 hours apart from other medications
Magnesium-containing compounds tend to act as
Laxatives,
Simeticone is sometimes included to
relieve flatulence, and alginates may be included for benefit in GORD
Aluminium-containing compounds tend to cause
constipation
Antacids containing BOTH magnesium and aluminium can
- reduce these colonic S.E. (constipation and laxating effect)
In renal impairment, avoid
antacids which contain magnesium or large amounts of sodium.
Bismuth-containing antacids
are not recommended because absorbed bismuth is neurotoxic, causing encephalopathy.
Difference between gaviscon and gaviscon advance
- Gaviscon = A, B, C
Contains Sodium Alginate, Sodium Bicarbonate, Calcium Carbonate - Gavison Advance:
Contains Potassium bicarbonate, which normal Gaviscon does NOT
Peptic ulceration
Duodenal and Gastric ulcers are usually due to H. Pylori or NSAIDs.
- withdraw NSAIDs where possible