Treatment Flashcards
summary treatment
- IV fluids
- IV steroids - only once infective/ischaemic colitis is ruled out
- GI rest
If they fail to settle….
Rescue medical therapy - can get more potent immunosuppressants
Surgery - can remove the affected colon
what is the 1st step in the ladder of treatment for UC?
5ASA
what are the side effects of 5ASA
diarrhoea, idiosyncratic nephritis (have to check renal function before starting treatment)
what are two examples of 5ASA
sulfasaline and mesalazine
5 ASA is an ____ ______ drug
anti-inflammatory
what is the 2nd step in the ladder of treatment for UC?
steroids
examples of steroids
budesonide and prednisolone
Patients are given a short course which is tapered as the weeks go on - high dose initially
Why? ]
Why? Because some patients may become dependent on them
what are the musculoskeletal side effects of steroids
Osteoporosis
Avascular necrosis
Proximal myopathy
what are the GI side effects of steroids
nausea , vomiting and gastritis
what are the cutaneous side effects of steroids
acne and thinning of the skin
what are the metabolic side effects of steroids
Makes you want to eat all the time so can lead to weight gain, diabtes and hypertension
what are the neuropsychiatric side effects of steroids
Can get loads of energy and do manic things
Once off treatment patients can become depressed
Can disrupt sleep pattern
can also get ____ and ___ failure on steriods
cataracts, growth failure
immunosuppressants are thiopurine based medicines: azathioprine/mercaptopurine (6MP)
give and example
methotrexate
____ is a purine analogue that interferes with ____ synthesis and inhibits the proliferation of quickly growing cells, especially cells of the immune system like-_ and __ cells
This is a purine analogue that interferes with DNA synthesis and inhibits the proliferation of quickly growing cells, especially cells of the immune system like t and b cells
During metabolism ____ converts 6-MP (azathioprine) to 6-TGN (which is active), while ____ converts 6-MP to 6-MMP which is inactive.
Need to be careful with some patients - those who have reduced ____ activity as 6-___ can accumulate and cause toxicity and myelosuppression
During metabolism HPRT converts 6-MP to 6-TGN (which is active), while TPMT converts 6-MP to 6-MMP which is inactive.
Need to be careful with some patients - those who have reduced TPMT activity as 6-TGN can accumulate and cause toxicity and myelosuppression
what will always be measured before starting azathioprine treatment?
TPMT
____ is not co-prescribed with azathioprine
allopurinol
what are the side effects of azathioprine and immunosuppressants
- pancreatitis
- leukopaenia
- hepatitis
- small risk of lymphoma, skin cancer
what is step 3 in the treatment of UC
immunosuppresants
they have a slow onset of action
immunosuppressants
what is step 4 in the treatment of UC
anti-TNF
TNF alpha is a _____ ____
TNF alpha is a proinflammatory cytokine
anti- TNF are antibodies to TNF alpha - they can be ______ (e.g. infliximab) or ____ (e.g. adalimumab)
anti- TNF are antibodies to TNF alpha - they can be chimeric (e.g. infliximab) or huma (e.g. adalimumab)
when do TNF alpha work
anti-TNF (TNF alpha is a proinflammatory cytokine) work at the point where naive T cells are being presented with the antigen and will switch off the immune response at this point and prevent the drive of inflammation by causing apoptosis of activated T cells
they have a rapid onset of action
Anti-TNF
have to make sure there is no ___ before starting anti-TNF
TB
what is the treatment ladder for crohns
- steroids
- immunosuppressants
- anti-tnf
when would you do an emergency surgery
Failure to respond to medical therapy
Small bowel obstruction
Abscess
Fistulae
when would you do an elective surgery
failure to respond to medical therapy
what are the surgery options for crohns
Surgery: resection, stricturoplasty, fistula repair
what is the surgery for fistula
seton- cord passing through fistula tract to keep it open for draining
surgery for ___ is curative
UC
UC - surgery
what is a koch pouch ?
rectum is removed and internal small bowel pouch formed
UC - surgery
what is a j pouch ?
J pouch - functions as ‘new rectum’