Pancreatitis Flashcards
Acute Pancreatitis
secondary to gallstone disease or excess alcohol consumption
Risk factors
Gallstone Ethanol (alcohol) Trauma Steroids Mumps infection / Coxsackie virus Autoimmune disease (Ig4 related: SLE or Sjogren's syndrome) Scorpion bite Hypercalcemia (hyperparathyroidism) ERCP history Drugs (oestrogen containing contraceptives)
hyperlipidemia
pancreatic carcinoma
hereditary
Clinical features
S: epigastric pain then spreading to the whole abdomen
O: sudden in onset
C: -
R: radiating to the back
A: nausea, vomiting, abdominal distension
T: after heavy fatty meals
E: relief by sitting and leaning forwards, aggravated by movements
S: severe
Physical examinaion
patient lying due to pain and looks pale and sweating
mild jaundice
tachycardia
tenderness and guarding around the abdomen
abdominal distension
abdomen not move with distension
absent of bowel sounds
rare:
Cullen’s sign: bruising around the umbilicus
Grey Turner’s sign: bruising in the flanks
Investigations
FBC:
- Hb
- Hct: >0.47 on admission is measure of severe disease
- WCC (leucocytosis)
Serum amylase: raised 3X is diagnostic (>1000u/L)
Serum lipase elevated (more specific than amylase)
Compulsory to do urinalysis as serum amylase is not useful after 40hours of pain.
LFT:
bilirubin increase
ALT increase
Serum calcium: reduce due to saponification
BUSE: loof for dehydration
Blood sugar: hyperglycemia due to the damage of islet of Langerhans with insulin production interferes
ABG: PO2 reduce
AXR: psoas shadows, sentinel loop sign
CXR: look for small pleural effusion or signs of ARDS
TAUS: look for gallstones, bile duct dilatation
CT TAP: pancreatic oedema and swelling and necrosis (diagnostic uncertainty and confirmation)
Management
no curative but supportvie measures:
1. IV fluids resuscitation and oxygen therapy, cyrstalloid should be used
2. Keep Nil by mouth
3. IV analgesics
4. Correction of electrolyte imbalance and metabolic imbalance
5. NG tube for enteral feeding
6, Catheterization for hourly urine output (at least >0.5ml/kg/hr)
7. Stress ulcer prophylaxis by giving PPIs
8. Organ support:
-vasopressors, calcium gluconate for hypoglycaemia
- intubation and ventilation for ARDS
-dialysis for ARF
9. antibiotics given when signs of sepsis related to pancreatitis (infected pancreatic necrosis / peripancreatic collections)
Complications
Systemic: DIC ARDS ARF Hypocalcemia Hyperglycemia (diabetes)
Local: Pancreatic necrosis Pancreatic abscess Pancreatic pseudocyst chronic pancreatitis