IBD Therapy Flashcards
management of IBD
lifestyle modifications
drugs
surgery
lifestyle mofnicaitons of IBD
stop smoking - Crohn’s
diet - influences symptoms (not pathogenesis)
drug treatment of ulcerative colitis
5ASA
steroids
immunosuppressants
anti-TNF therapy
5ASA for ulcerative colitis
mesalazine - pentasa or asacol
steroids for ulcerative colitis
mild/moderate - prednisolone
severe - hydrocortisone
drug treatment for Crohn’s
steroids
immunosuppressants
anti-TNF therapy
antibiotics (for peri-anal disease)
steroids for Crohn’s
mild - prednisolone or budesonide
moderate/severe - hydrocortisone
add on therapies for UC
Sulfasalazine - anti-inflammatory
anti-TNF therapy
infliximab - IV, chimeric
adalimumab - S/C injection, humanised
5ASA mechanism of action
topical effect
anti-inflammatory properties
reduces risk of colon cancer
side effects of 5ASA
diarrhoea
idiosyncratic nephritis
asacol
oral
pH dependent release - Ileum and colon only
pentasa
oral
delayed release - used in small and large bowel
salazopyrin
balsalazide
5ASA;
oral
colon only
musculoskeletal steroid side effects
avascular necrosis
osteoporosis
cutaneous steroid side effects
acne
thinning of skin
metabolic side effects of steroid
weight gain
diabetes
hypertension
immunosuppressants for Crohn’s
azathioprine/mercaptopurine
methotrexate - not safe in pregnancy
side effects of azathioprine
pancreatitis
leucopaenia
hepatitis
small risk of lymphoma, skin cancer
azathioprine
slow onset of action
TPMT - contributes to toxicity
avoid co-prescription of allopurinol - CO inhibitor
requires regular blood monitoring
azathioprine metabolism
PP
inflammatory pathways targeted in IBD
TNFalpha
MadCAM
T cell alpah4-beta7
anti TNF mechanism of action
promotes apoptosis of activated T lymphocytes
rapid onset of action
side effects of anti TNF
infusion reactions
infection
cancer - lymphoma, solid tumours
biosimilar anti-TNFs
inflectra
remsima
emergency surgery in IBD
failure to respond to medical therapy
small bowel obstruction
abscess
fistulae
elective surgery in IBD
failure to respond to medical therapy
dyspepsia of colon mucosa
surgery for Crohn’s
not curative
can result in short gut syndrome - requiring type 3 intestinal failure
surgery for ulcerative colitis
curative