GI AND LIVER Flashcards
What is Charot’s triad linked to and what is it?
It is linked to ascending cholangitis and primary sclerosing cholangitis and is made of:
Fever
Upper right quadrant pain
Jaudice (Dark urine and pale stools)
Which infections cause ascending cholangitis?
E.coli or Kelbsiella also enterococcus (group D strep) although it is usually due to gallstones blockage
What is primary sclerosing cholangitis?
Chronic inflammation and fibrosis of the bile ducts (Linked to ulcerative colitis
What is diverticulosis and diverticulitis?
Diverticulosis: Presence of diverticula (Mucosa that has ppouched through the muscular wall)
Diverticulitis: Inflammation from when faeces obstructs the neck
What are risk factors of GORD?
Smoking, alcohol, pregnancy, big meals, hernia and obesity
When is heartburn must often felt when you have GORD?
When lying down and just after eating.
What investigatiosn do you do for GORD?
Endoscopy to check red flags
What treatment do you give for GORD?
Life style changes, Antacids (Magnesium carbonate), h2 receptor blockers (Ranitidine) and PPIs (omeprazole)
When do you experience pain with stomach ulcers?
While eating
What can cause ulcers?
H.pylori and NSAIDs
How would someone with an ulcer describe the pain?
Burning
How would you test for H.pylori?
C13 Urea breath test, stool sample test, blood antibody test
How do we treat H.pylori?
Omeprazole, metronidazole and clarithromycin
How do we treat ulcers if no H.pylori?
Stop NSAIDs, PPI (Lansoprazole) and H2 blocker (Rantidine)
What is EIEC?
Enteroinvasive E.coli that causes bloody diarrhoea
What is EPEC?
Enteropathogenic E.coli
What is EAEC?
Enteroaggregative which causes Traveller’s diarrhoea and produces EAST toxin
What are varices?
Dilated veins between the systemic and portal vein system leading to haemorrhage
What can cause varices?
Chronic liver disease
Oesophageal- Portal hypertension
How do we treat varices?
EMERGENCY
Banding, beta blockers, treat underlying, liver transplant
What are causes of gastritis?
H.pylori, alcohol and NSAIDs
What is gastritis?
Inflammation of the mucosa
What on gluten causes coeliac disease?
Alpha Giladin
What gene is linked to Coeliac disease?
HLA DQ2 AND HLA DQ 8
What are the signs and symptoms of coeliac disease?
Abdominal pain and bloating, steatorrhoea, diarrhoea, weight loss, anaemia, failure to thrive
What antibody do you find in coeliac disease?
Anti-transglutamase (type of IgA)
What are the investigations for coeliac disease?
Anti-transglutamase, if positive do a duodenal biopsy (villous atrophy and crypt hyperplasia)
Where does Crohns effect?
The entire GI tract
Where does ulcerative collitis effect?
The terminal ileum
What symptoms does UC cause?
Cramp/colicky abdo pain and diarrhoea with blood and mucus
What is the macroscopic apprearances of chrons?
Skip lesions
What is the macroscopic appearance of UC?
Continuous involvement in the colon only
What are the microscopic signs of chrons?
Inflammation in all the layer and granulomas
What are the microscopic signs of UC?
Mucosal only inflammation and no signs of granulomas
What helps remember Chron’s?
GALS-
Granuloma
All Layers
Skip lesions
What investigations should be done for inflammatory bowel disease?
Bloods- low HB but high WCC, ESR and CRP
A colonoscopy biopsy differentiates between the 2
A x ray shows the involvement extent
What is the treatment for Crohns?
Mild- Prednisolone
Severe- IV hydrocortisone
What is preventive treatment for Crohns?
5-ASA analogues (mezalazine), corticosteroids (prednisolone) and surgery