Week 7 - Disorders of the Biliary Tract Flashcards
list 3 disorders of the biliary tract
- cholelithiasis
- cholecystitis
- gallbladder cancer
what is cholelithiasis
gall stones
what causes cholelithiasis
- occurs when solutes in the bile become so concentrated that they no long stay in the solution
= form stone
what are the 2 types of gallstones
- cholestrol stones within or without calcium
- bilirubin stones
what are the 2 categories of risk factors for gallstones
- altered bile composition
- impaired gallbladder mobility
list 5 risk factors for cholestrol stones
- dietary cholestrol
- obesity
- oral contraceptives
- DM
- dyslipidemia
4 Fs
- Fat
- Fertile (previous pregnancies, oral contra)
- Female
- Forty
how are oral contraceptives a risk factor for gall stones
- contain estrogen which increases the risk of gallstones
- also alters the character of bile
how is obesity a risk factor for gall stones
- linked to high lvls of cholestrol
how does DM increase the risk of gallstones
- can cause hyperlipidemia = more cholestrol in bile = greater risk of precipitation
list 2 risk factors for bilirubin stones
- hemolytic anemias
- parasitic infection (ex. malaria)
is there a greater risk factor of gallstones in men or women? why?
- women r/t estrogen
peak incidence occurs in women at what age? men?
- women = 50
- men = 60
describe the effect of pregnancy on gallstones
- prior pregnancies increasesd the risk r/t estrogen
how does rapid weight loss effect gallstones?
- increases the risk
- causes increased disposal of cholestrol in the bile
what can gallstones cause
- obstruction of the cystic & common bile duct