Dyspepsia and Ulcers Flashcards

1
Q

what is dyspepsia

A

complex of symptoms of the upper GI

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2
Q

what are the symptoms of dyspepsia

A
upper abdominal pain
acid reflux
heartburn 
nausea 
vomiting 
bloating
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3
Q

what is the initial management of dyspepsia

A

med check - NSAIDS, CS
OTC antacids, alginate may be used for immediate relief
PPI - omeprazole and H2 receptor antagonist

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4
Q

what are the red flags for dyspepsia

A

unexplained weight loss
vomiting
pain on swallowing
GI bleed - stool, vomit

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5
Q

what are the cause of dyspepsia

A
  • Gastro oesophageal reflux disease GORD
  • pepetic ulcer disease
  • malignancy/cancer
  • zollinger - ellison syndrome
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6
Q

describe non ulcer dyspepsia

A
  • H pylori

- delayed gastric emptying

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7
Q

state some life style modifications

A
small freq meals 
stop smoking 
reduce alcohol 
reduce acffeine 
review meds
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8
Q

what is an ulcer

A

a lesion on epithelial surface caused by superficial loss of tissue

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9
Q

describe peptic ulcers

A
  • ulcers in alimentary tract - stomach duodenum
  • must be deep enough to penetrate the muscularis mucosa
  • caused by increase acid and pepsin in gastric juice
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10
Q

what are the causes of peptic ulcers

A

H pylori and NSAIDS most common

increase secretion of acid in Zollinger Ellison syndrome

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11
Q

what are the two types of peptic ulcers

A

duodenal ulcer

gastric ulcer

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12
Q

describe duodenal ulcer

A

caused by increase acid in duodenum

  • increase partial cells
  • increase gastrin secretion
  • decrease acid secretion inhibition and increase HCO3 secretion
  • smoking harming gastric mucosal healing
  • genetic
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13
Q

describe gastric ulcer

A

breakdown of gastric mucosa

  • gastritis
  • h pylori release cytokines
  • abnormal mucus production
  • parietal cell damage - low acid production
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14
Q

what are the investigations that need to be carried out

A

symptoms
endoscopy for PU
radiology
urea breath test - h pylori - non invasive

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15
Q

how do NASIDS damage the mucosal layer

A

superficial erosions
can be symptomatic
erosions caused by inhibition of COX enzymes in mucosal cells
enteric coating doesn’t reduce risk but lowers superficial damage
decrease production of protective prostaglandins in mucosal cells - acid damage

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16
Q

what are the system effects of NSAIDS

A
  1. inhibit COX 1
    decrease prostaglandins which leads to increase gastric acid secretion, decrease mucous production and decrease BF
  2. Inhibit COX 2
    increase intracellular adhesion molecules
    increase neutrophils adherence to endothelia cells - neutrophils lead to free radical protease - damage mucosal cells
17
Q

what are risk factors of NSAIDS

A

older than 65
past PU
high NSAID use
increase haemorrhage with anticoagulant

18
Q

proton pump inhibitors

A

omeprazole

inhibit the H/K ATPase
binds to sulphydryl (-SH)
stops H from being secreted - decrease acid secretion

for ulcer treatment
enteric coating

interact with warfarin, diazepam

19
Q

H2 receptor antagonist

A

cimetidine , famotidine -ine

antagonise histaime - decrease acid secretion

20
Q

anticholinergics

A

atropine

block ACh in parietal cells
many side effects