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Gallstone Disease. Objectives. Basic biliary anatomy and physiology Pathophysiology of gallstone disease Clinical manifestations of gallstone disease Complications of gallstone disease Investigation and management of gallstone disease. Gallbladder Surface Anatomy.
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Objectives • Basic biliary anatomy and physiology • Pathophysiology of gallstone disease • Clinical manifestations of gallstone disease • Complications of gallstone disease • Investigation and management of gallstone disease
Gallbladder Surface Anatomy • Lies in the right upper quadrant, under the costal margin at the level of the 9th costal cartilage • The level of the 9th costal cartilage can be palpated as a distinct notch
Gallstones • Common (20% population) • Cholesterol stones in West • Female proponderance (3/1) • Risk factors • Obesity • Oestrogen • Hypercholesterolaemia • Increasing age • 5 F’s
Clinical Manifestations • Asymptomatic • Cholecystitis • Biliary colic • Complications • Jaundice • Pancreatitis • Cholangitis • Gallstone ileus • Carcinoma of gallbladder
Acute Cholecystitis • Acute inflammation of the gallbladder • Usually associated with calculi (stones) • Calculus causes obstruction at Hartmann's pouch or cystic duct • Less commonly with biliary sludge • A-calculus (no-stone) cholecystitis rare • Bacterial infection in 50% only • Recurrent attacks result in fibrosed thickened gallbladder (chronic cholecystitis)
Acute Cholecystitis Clinical Features Pain • Sudden onset • Post-prandial • RUQ—around to back • Constant • Associated nausea and vomiting • May last several hours to days • Recurrent attacks common
Acute Cholecystitis Signs • Pyrexia (37.5-38.5) • Associated jaundice signifies CBD blockage • CBD stone or Mirrizi’s Syndrome • Abdominal tenderness localized to RUQ • Murphys’ sign positive
Murphys’ Sign • Inspiratory arrest with manual pressure below the gallbladder
Biliary Colic • Pain associated with passage of stone • Usually not colicky but constant (a misnomer) • As cholecystitis but notassociated with fever/ leucocytosis and positive Murphys’ sign • Usually resolves after minutes- few hours
Complications • Empyema/ mucocele • Obstructive jaundice • Ascending cholangitis • Pancreatitis
Charcots’ Triad- Ascending cholangitis • Pain • Fever • Jaundice
Courvoisiers’ Law In the presence of jaundice a palpable gallbladder is most likely due to malignant obstruction of the bile duct • Based on presumption that patients with gallstones have chronically inflammed, fibrosed gallbladders incapable of distension • Does not always hold true e.g. • Empyema + CBD stone
Acute Cholecystitis - Investigation • Bloods • FBC (WCC) • LFT’s (Bilirubin, GGT, Alk Phos) • Amylase • Imaging • CXR • Ultrasound • CT • Special tests
Acute Cholcystitis – Special tests • Endoscopic Retrograde Cholecystogram (ERCP) • Diagnostic and therapeutic • Magnetic Resonance Imaging (MRC) • Other forms of Cholangiography • Intra-operative • Percutaneous Transhepatic (PTC) • Oral cholangiogram
Acute Cholecystitis – Management • Restrict Oral intake (NPO) • Intravenous fluids • Ng tube aspiration (for vomiting) • Analgesia • Morphine • Intravenous antibiotics • Gram negative cover (co-amoxiclav—gentamicin—piperacillin) • Cholecystectomy after resolution
Biliary Colic - Management • Acute attack usually resolves spontaneously • Analgesia • Investigations as for cholecystitis • Prolonged attacks treated as cholecystitis • Elective cholecystectomy
Ascending Cholangitis • Charcots’ Triad • Investigations • FBC, LFT's, Amylase, US • Management • Resuscitation (IV fluids) • Antibiotics (G-negative cover) • Intensive monitoring (urometry)
Ascending Cholangitis • Definitive management • ERCP and stone removal +/- stent • Cholecystectomy after resolution
Gallstone Pancreatitis • Commonest cause of Pancreatitis • More severe than alcohol Pancreatitis • Due to CBD stones irritating pancreas • Obstruction at ampulla of Vater • Irritation in pancreatic portion of CBD
Gallstone Pancreatitis • Supportive • Fluid resuscitation • Antibiotics • Analgesia • Definitive • ERCP & stone retrieval • Elective cholecystectomy
Laparoscopic Cholecystectomy • Commonest elective surgical procedure • Standard treatment for gallstone disease • May be performed as daycase • Converted to open in small number
Complications • Trauma • Common bile duct (CBD) • Intestine • Liver • Haemorrhage • Vessel injury • Liver injury • Cystic artery clips • Infection • Biliary peritonitis
Late Complications • Post cholecystectomy syndrome • Rare • Pain • Occasionally due to stones in the biliary tree • Port site hernia • Umbilical • 10mm port sites
ERCPEndoscopic Retrograde Cholangio Pancreato Graphy • Usually performed by gastroenterologists • Diagnostic and therapeutic • Indicated in jaundiced patients • Ampulla of Vater cannulated • Demonstrates ductal anatomy • Allows biopsy of malignant lesions • Therapeutic in relieving obstruction • Stone retrieval or Stenting
Summary • Gallstones are common • Usually asymptomatic • Clinical manifestations • Cholecystitis • Biliary colic • Complications • Ascending cholangitis (Charcots' Triad) • Treatment • Laparoscopic cholecystectomy • ERCP