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Gallstone Disease. Objectives Basic biliary anatomy and physiology Pathophysiology of gallstone...
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Transcript of Gallstone Disease. Objectives Basic biliary anatomy and physiology Pathophysiology of gallstone...
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
• 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
Murphy’s Sign
Biliary Colic
• Pain associated with passage of stone
• Usually not colicky but constant (a misnomer)
• As cholecystitis but notnot associated 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
1. Pain
2. Fever
3. 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
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