Cholecystitis Flashcards
what is cholecystitis
inflammation of the gallbladder
aetiology/ causes of cholecystitis
gallstones obstruct the common bile duct or the neck of the gall bladder and therefore lead to inflammation. there are different types of stones.
what are the three different types of gallstones
mixed stones (80%). pure cholesterol stones (10%) and pigment stones (10%)
mixed stones composition
cholesterol, calcium bilirubinate, phosphate and protein
why do pigment stones form
they are black stones formed from calcium bilirubinate. this is due to high bilirubin levels due to haemolysis
less common causes of cholecystitis
bile inspissation and bile stasis
epidemiology of cholecystitis
very common, UK prevalence is 10%, 3x more common among females
risk factors for cholecystitis
female, fair, forty, fertile and fat
increasing age, low fibre diet, family Hx, diabetes mellitus, physically inactive and drugs
risk factors for pigment stones forming
haemolytic disorders such as Sickle cell anaemia
presenting symptoms
RUQ pain, epigastric tenderness, fever, tachycardia, guarding and rebound tenderness, palpable mass
physical examination findings
guarding and rebound tenderness, Murphys sign and RUQ pain
Murphy’s sign
test for cholecystitis.
patient exhales and takes a deep breath in; upon inspiration the examiner palpates the RUQ of the patient. as the gallbladder hits the hand of the examiner, the patient will flinch from pain. this is a positive Murphys sign
investigations
bloods; FBC, LFT’s, blood cultures and amylase
ultrasound
interpret blood findings in someone with cholecystitis
FBC; high WCC and high CRP
LFT’s; high ALP and GGT
amylase- to eliminate pancreatitis
ultrasound findings in someone with cholecystitis
thickening of the gall bladder wall, dilating of the common bile duct and gallstones will be seen