L13: Pancreatitis and Pancreatic Cancer Flashcards
What is acute pancreatitis? (definition)
acute inflammation of the pancreas due to injury
List the causes of pancreatic injury/pancreatitis (remember the mnemonic!)
I - Idiopathic
G - Gallstones
E - Ethanol (Alcohol)
T - Trauma
S - Steroids M - Mumps A - Autoimmune S - Scorpion Sting H - Hypertriglyceridaemia/Hypercalcaemia E - ERCP D - Drugs (e.g. thiazides)
List 3 causes which account for 80% of all pancreatic injury (and which can go on to cause pancreatitis)
- Gallstones
- Alcohol
- Trauma
Explain the pathogenesis of acute pancreatitis
- trauma/damage to the pancreas lead to intra-pancreatic activation of enzymes
- the enzymes act on pancreatic tissue
- causes local and systemic inflammatory response
How can hypercalcaemia cause acute pancreatitis?
believed that hypercalcemia leads to accelerated activation of enzymes which causes the pancreatic damage
List the symptoms and signs associated with acute pancreatitis
Symptoms:
- sudden pain (can radiate to back)
- pain may be relieved by sitting forward
- fever
- nausea
- vomiting
- dehydration (b/c AP can induce shock)
Signs:
- epigastric tenderness + guarding
- tachycardia
- tachypnoea
- ± Cullen’s Sign
- ± Grey Turner’s Sign
List 2 signs that may be seen in haemorrhagic pancreatitis
- Cullen’s Sign
2. Grey Turner’s Sign
What is Cullen’s Sign - what is it indicative of?
Cullen’s Sign: peri-umbilical bruising
- seen in haemorrhagic pancreatitis
What is Grey Turner’s Sign - what is it indicative of?
Grey Turner’s Sign: flank bruising
- seen in haemorrhagic pancreatitis
Acute pancreatitis can be classified as mild, moderate or severe. What is considered mild acute pancreatitis?
- NO organ failure
- NO local or systemic complications
Acute pancreatitis can be classified as mild, moderate or severe. What is considered moderate acute pancreatitis?
- transient organ failure (< 48 hours)
- local or systemic complications
Acute pancreatitis can be classified as mild, moderate or severe. What is considered severe acute pancreatitis?
persistent organ failure (> 48 hours)
List 2 criteria that can be used to determine the severity of acute pancreatitis
- Glasgow (IMRIE) Criteria
2. Ranson Criteria
What are the 8 criteria that are present in the Glasgow (IMRIE) criteria?
P - PaO2 < 8kPa A - Age > 55 N - Neutrophilia (WCC > 15 x 10^9) C - Calcium < 2 mmol/L R - Renal Function (Urea > 16 mmol/L) E - Enzymes (LDH > 600; AST > 200) A - Albumin (32g/L) S - Sugar (blood glucose > 10 mmol/L)
List some of the investigations that can be done to diagnose acute pancreatitis
- Bloods (FBC, CRP, Lipase + Amylase, LFTs, U&E, Calcium, Glucose)
- ABG
- CXR
- Abdominal Ultrasound
- CT of Pancreas
- MRCP/ERCP
List the treatments/management plan for acute pancreatitis
- IV fluids (to treat dehydration)
- analgesia
- assess severity + repeat test at 48 hours
- antibiotics in pancreatic necrosis
- try to re-introduce feeding when possible
- manage systemic + local complications (e.g. anti-thrombotic prophylaxis, alcohol withdrawal)
When treating acute pancreatitis, the patient may undergo alcohol withdrawal. Which medications may be given?
Chlordiazepoxide + Pabrinex
What is Chloridiazepoxide and what is it used for?
- alcohol withdrawal drug
- for acute pancreatitis pts w/ alcohol withdrawal
- given with pabrinex (a multi-vitamin)
What is Pabrinex and what is it used for?
- multivitamin drug
- for acute pancreatitis pts w/ alcohol withdrawal
- given with chlordiazepoxide (an alcohol withdrawal drug)
List the complications of acute pancreatitis
- pseudocyst formation
- pancreatic abscess
- necrotizing pancreatitis
- intra-abdominal sepsis
- necrosis of transverse colon
- ARDS
- pancreatic haemorrhage
- chronic pancreatitis
- hyperglycaemia (due to loss of insulin)
- hypocalcaemia (due to fat necrosis + saponification)
- hypovolaemia; shock
- SIRS
- sepsis
- DIC
Necrotizing pancreatitis is a 2-phase disease. What occurs in the first phase (after 1 week)?
severe SIRS response
Necrotizing pancreatitis is a 2-phase disease. What occurs in the second phase (after 2 weeks)?
sepsis-related complications
remember: sepsis is a dysregulated SIRS response
Is serum lipase or amylase more important in diagnosing acute pancreatitis?
Serum Lipase (should be >3x the upper limit)
List some of the cause of chronic pancreatitis
- recurrent acute pancreatitis
- increased alcohol use
- due to pancreatic duct obstruction (tumours, cysts, strictures…)
- autoimmune
- idiopathic
Describe the pathogenesis of chronic pancreatitis and how the pancreas would look
Obstruction of Pancreatic Ducts:
- protein precipitates in pancreatic tubules
- calcium deposited in precipitates
- progressive course
- continuous/episodic pain
- patchy fibrosis in pancreas
What are the possible treatments/managements for chronic pancreatitis?
- stop alcohol
- cholecystectomy (removing gall bladder)
- reduce fat
- enzyme supplementation (creon) [to help digest food]
- analgesia
- Whipple’s procedure
What is Courvoisier’s Law?
a palpable gallbladder in a jaundiced patient is unlikely to be due to gallstones
- so you should think that it is a tumour
List some of the risk factors for pancreatic cancer
- age (6th + 7th decades of life)
- smoking
- alcoholism
- diabetes (esp. T2DM)
- chronic pancreatitis
What is the Sister Mary Joseph nodule?
nodule on umbilicus
- metastases from pancreas to the umbilicus
- secondary tumour
List some palliative treatments for pancreatic cancer
- analgesia
- coeliax axis block (stops nerves from feeling pain)
- gastro-jejunostomy (to prevent any blockages that may occur)
What is Whipple’s Procedure? (explain what is removed)
resection of…
- part of the stomach
- duodenum
- pancreatic head + neck
- gall bladder
- part of the bile duct
- draining lymph nodes
What is another term for Whipple’s procedure?
pancreaticoduodenectomy
List 2 indications for Whipple’s procedure
- chronic pancreatitis
- pancreatic cancer (if cancer is resectable - 80% of the time it cannot be resected)
What is the Apache II score used for?
to determine the mortality of a patient (in this case, with acute pancreatitis)
What is the most common indication that a patient with chronic pancreatitis needs surgery (Whipple’s procedure)?
intractable pain