h pylori and gastric disease Flashcards

(50 cards)

1
Q

what is dyspepsia

A

generalised indigesion and upset stomach including pai
just genalised symptoms

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2
Q

symptons of dyspepsisa

A

epidgstic pain, burning, fullnes, bloating, satiety, nausea, sickness, heartburn, reflux, disconfort

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3
Q

causes of upper gi dyspepsia

A

Gord, peptic ulcer, gastritis, non-ulcer dyspepsia, gastric cancer

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4
Q

what are the symptoms of lower gi dyspepsia

A

gall stones
drugs
cardiac-related
psychological
coeliac disease
IBS
pancreatic diseases
colon cancer

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5
Q

What are important parts of a drug history for a presenting complaint of dyspepsia

A

NSAIDs, steroids, bisphosphonates, ca antagonists, nitrates, theophyllines,

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6
Q

what to ask about lifestyle for dyspepsia

A

alcohol, diet, smoking, exercise, weight reduction

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7
Q

What blood can be useful for dyspepsia

A

fbc, ferritin, lft, u and e, calckum, glucose, coelica serolgy, serum iga

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8
Q

what are the alarms pneumonic

A

a - anorexia
l - loss of weight
a - anaemia
r - recent onset in over 55 or persistent despite treatment
m - melaena (dark stools) haematemesis, or mass
s - swallowing problems

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9
Q

what are the risks of endoscopy

A

1; 2000 risk for perforation, bleeding or reaction to drgus

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10
Q

why do NSAIDs cause damage to the stomach

A

they reduce prostaglandins, thus meaning histamine will work too effectively producing too much stomach acid

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11
Q

what percent of the world’s population is infected with h pylori

A

50%

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12
Q

what type of mucosa can h pylori infect and colonise

A

gastric mucosa only , no where else

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13
Q

can h pylori penetrate the epithelial layer

A

no

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14
Q

what factors determine the reaction to h pylori

A

the individual genetics, colanasitiaon size and site, strain of bacteria, environmental factors such as smoking

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15
Q

what chemical does h pylori release

A

urease

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16
Q

What is the function of urease

A

produce ammonia reducing the ph of stomach acid helping the bacteria to survive and to colonise

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17
Q

what is chemotaxis

A

Bacteria move to an area of favorability for survival

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18
Q

what is the role of flagella on bacteria

A

help the bacteria move

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19
Q

what is the role of adhesin toxins on bacteria

A

adhere bacteria to the stomach

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20
Q

what happens when h pylori release toxins once adhered

A

it causes inflation and cytokine reaction in the area

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21
Q

what are the main outcomes of h pylori infection

A

gastritis
chronic atrophic gastritis with intestinal metaplasia
gastric or duodenal ulcer
gastric cancer, malt lymphoma (<1%)

22
Q

does h pylori inection in the antral cause an increase or decrease in stomach acid

A

increase in stomach acid

23
Q

what are the main side effect of h pylori infection in the antrum

A

duodenal disease

24
Q

does h pylori inection int eh corpus increases or decrease stomach acid

A

decrease stoamch acid

25
what is the main effect of h pylori infection int eh corpus of the stomach
gastric cancer
26
ways to test for h pylori inefection which are non invasive
serology - iga agiains h pylori urea braht teas stool antigesn test - for pppi for 2 weeks
27
what are the invasive test for h pylori
endostocpys - histology f gasti cbipo;ys cultre of gastic biopsy rapid slide urease tests obtained through endoscopy
28
how does urease rapid slide work
colour change of ph indicator due to bacteria produces amonia
29
what type of carbon is deteced in urea breath test
13 or 14 c labbeled co2
30
3 types of gastritis
autoimmune bacterial chemical
31
who do peptic ucler mianly effect
men and the elderly
32
are peptice ulcers increasing or decresing
decreasing
33
what other conditions than h pyloric can cause peptic ulcers
zollinger ellison syndrome, hyperparathyroidism, chron's disease
34
why does smoking cuase peptic uclers
nicotine damages prostaglain production
35
main symptons of peptic ulcer
epigastic pain nocturanl / huger pain back pain (perneation of a posteiral du) nausea and occasional vommintion wiehgt loss and anorexia epgastic tenderness if bleeding - haematemteis, melaena, or anameia
36
treatment for peptic ulcer triple therapy
clarithromyic i - 500mg amyoxicillin 1 g omeprazole 20mg
37
what is treatment for penicilin allergy with peptic ulcer
clarithromyicin - 500mg tetracycline omepraxol 20mg
38
main complications for ulcer
bleeding, acute and chonic leading to haematessi, melaena, ior defection perforation fibrotic sticture gastic outlet obstion
39
symptoms of gastric outlet obstuction
vommiting abdomial distension, weight loss, gastric splah
40
what type of ions are lost in commit in gastic outlet obstuction
h+ and cl-
41
what happens to ph in gastic outlet obstion
metabolic alkalosis
42
what is seeen in blood of gastric outlet obstruciton
low cl, low na, low k , renal impairment
43
what is the treatment for outlet obsiton
endoscopic ballow dialatio or surgery
44
what is the main type of cancer in gastic cancer
adenocarcionam of the epitheal cells
45
what are non common type of gastic cancers
malt - mucoasase associed lympathic tissue gastial intesail stoma tumours
46
symptoms of gastic cancer
dyspepsia, nausea, vomminting , weight loss, gi bleed, iron deficey anemai, gastic outlet obstuction
47
what perecnet of gastic cancer are familar
15%
48
what are hertibaleg gens tha cause gastic cacer
cdh -1 gene (e cadherin)
49
What staging is done for gastric cancer
endoscopy and biopsy ct achest and Abdo, lymph nodes
50
treatment for gastric cancer
surgery and chemotherapy