Hepatobiliary surgery Flashcards
what are gallstones made up of?
phospholipids - lecithin
bile pigments
cholesterol
what causes gallstones ?
lithogenic bile
binary sepsis
gall bladder hypo motility (pregnancy, OCP, TPN, fasting)
what are the three types of gall stones ?
cholesterol
pigment
mixed
what are pigment gall stones made of?
calcium bilirubinate
what do cholesterol gall stones look like?
large, solitary
what do pigment gall stones look like?
small, black, gritty, fragile
what are pigment stones associated with ?
haemolysis
what is the major component of mixed stones?
cholesterol
what are gall bladder stones complications ?
biliary colic acute cholecystitis chronic cholecysitis mucocele carcinoma mirizzis syndrome (common bile duct obstruction)
what are common bile duct gall stone complications ?
obstructive jaundice
pancreatitis
cholangitis
what are gut gall stones complications ?
gallstone ileus
what urine tests should be done for biliary colic?
bilirubin, urobilinogen, Hb
what blood tests should be done for biliary colic ?
FBC, U&E, amylase, LFT, clotting, CRP, group and save
what will stones look like on US?
acoustic shadow
what imaging can be done for biliary colic?
AXR, US, cholescintigraphy, MRCP
what is boas sign?
Hyperaesthesia below the right scapula
what is murphys sign?
2 fingers over the GB and ask pt. to breath in
→ pain and breath catch. Must be –ve on the L
what is the management of acute cholecystitis ?
NBM
Fluid resuscitation
Analgesia: paracetamol, diclofenac, codeine Abx: cefuroxime and metronidazole
in what condition is boas sign and murphys sign seen?
acute cholecystitis
what is DD for chronic cholecysitis?
PUD
IBS
Hiatus hernia
Chronic pancreatitis
what is the surgical treatment for chronic cholecysitis ?
Elective cholecystectomy
what is a calcified gall bladder called?
porcelain gall bladder
what is Riglers triad?
Pneumobiliia
Small bowel obstruction Gallstone in RLQ
where is jaundice seen first ?
tongue frenulum
what happens to INR during obstructive jaundice?
increases due to low Vit K as bile can’t get through to break down fat and Vit K
what immune antibodies should be checked with obstructive jaundice?
anti mitochondrial antibodies
ANCE
ANA
what antibodies are found with coeliac disease?
anti endomysal
anti transglutaminase
what does Pneumobilia on AXR suggest?
gas forming infection
what is the conservative management of obstructive jaundice?
Monitor LFTs: passage of stone may → resolution Vitamins ADEK
Analgesia
Cholestyramine
what are the two signs seen in ascending cholangitis ?
charcots triad
raynaulds pentad
what is charcots triad?
ever/rigors, RUQ pain, jaundice
what is raynaulds pentad?
Charcot’s triad + shock + confusion
what antibiotics should be given for ascending cholangitis ?
cef and met
what is the most common type of pancreatic cancer?
ductal adenocarcinoma
what surgery can be for pancreatic cancer?
Whipple’s pancreaticoduodenectomy
Distal pancreatectomy
state some DD of acute pancreatitis ?
Perforated DU
Mesenteric infarction
MI
is amylase and lipase increased or decreased with acute pancreatitis ?
increased
returns to normal by day 6
is Ca increased or decreased with acute pancreatitis ?
decreased
is Glc increased or decreased with acute pancreatitis ?
increased
what are some complications of acute pancreatitis ?
ARDs shock renal failure DIC increased Glc hypo/hyper calcium alcohol withdrawal
what are the indications of laparotomy with acute pancreatitis ?
Infected pancreatic necrosis Pseudocyst or abscess
Unsure Dx
state some late complications of acute pancreatitis?
necrosis, infection, abscess
bleeding
thrombosis
fistula formation
state some causes of chronic pancreatitis
alcohol
genetics - CF, haemochromatosis
how is chronic pancreatitis is relieved ?
sitting back
what is the presentation of chronic pancreatitis ?
epigastric pain steatorrhoea weight loss DM - polyuria/dipsia epigastric mass (pseudocyst)
is faecal elastase increased or decreased with chronic pancreatitis?
decreased
what could be seen on CT or XR of chronic pancreatitis?
calcifications
what clinical sign would splenic vein thrombosis have?
splenomegaly
what are complications of chronic pancreatitis ?
Pseudocyst DM Pancreatic Ca Pancreatic swelling → biliary obstruction Splenic vein thrombosis → splenomegaly
what causes WDHA syndrome ?
vasoactive intestinal peptide (VIPoma) causing
- watery diarrhoea
- hypokalaemia
- achlorhydria
- acidosis
what are the features of somatostatinoma ?
DM
steatorrhoea
gall stones
what is Meckel’s diverticulum?
congenital outpouching in the lower part of the small intestine
what are risk factors for cholangiocarcinomas?
PSC (primary sclerosing cholangitis)
UC
Choledocholithiasis
Hep B/C
what is the presentation of cholangiocarcinomas?
progressive painless obstructive jaundice
steatorrhoea
weight loss
what tumour marker might be present with cholangiocarcinoma ?
CA 19-9
what cancers could CA19-9 indicate?
cholangiocarcinomas
pancreatic
CRC
what is the management of cholangiocarcinoma ?
poor prognosis
palliative stenting by ERCP
what is hydatid cyst?
calcified cyst of liver
what causes hydatid cyst?
Zoonotic infection by Echinococcus granulosus
Occurs in sheep-rearing communities
what is the treatment for hydatid cyst?
albendazole