Gallbladder Flashcards
Name of the node in Calot’s triangle
Calot’s node
Small ducts that drain bile directly into the gallbladder from the Liver
Ducts of Luschka
What artery is susceptible to injury during Cholecystectomy?
Right hepatic artery
bc of its proximity to cystic artery and calots triangle
Where is the infindibulum of gallbladder
Near cystic duct
Boundaries of triangle of Calot
3 C’s
Cystic duct
Common hepatic duct
Cystic artery
Duct coming from Liver, GB, and the Cystic Artery
What is in bile?
Cholesterol
Lecithin (phospholipid)
Bile acids
Bilirubin
What does bile do?
Emuslify fat
Enterohepatic circulation
circulation of bile acids frm Liver to Gut, and back to Liver
What stimulates GB emptying?
CCK (cholecystokinin) and vagal input
CCK action
GB emptying
opening Ampulla of Vater (into duodenum)
Slow gastric emptying
Pancreas acinar cell growth and release of exocrine products
What serum level of Bilirubin does one start to get jaundiced?
2.5
Where can you first find evidence of jaundice
Under the tongue
bc UV light breaks down bilirubin at other sites
Signs/sx of Obstructive Jaundice
Jaundice Dark urine Clay colored stools Pruritis Loss of appetite Nausea
What causes itching in obstructive jaundice
Bile salts in dermis
Diff b/w MRCP and ERCP
MRCP: only diagnostic
ERCP: BOTH diagnostic and therapeutic
ERCP
Endoscopic retrograde cholaniopancreatography
gold standard for dx of biliary obstruction
MRCP
non-invasive
Magnetic resonance cholangiopancreatography
ERCP
investigate Bile duct, Pancreatic duct, and Ampulla using an endoscope
ERCP endoscope
goes all the way into small intestine in the duodenum
What can ERCP do
Biopsies
Clear stones
Dilate narrowing
Place stent
ERCP requires
deep sedation or
general anesthesia
MRCP
specialized MRI that evaluates hepatobiliary and pancreatic systems involving liver, gallbladder, and bile ducts
First diagnostic study of choice for eval of Biliary tract/ GB/ Gallstone
Ultrasound
PTC
Percutaneous Transhepatic Cholangiogram