Acute and chronic Pancreatitis +pancreatic carcinoma Flashcards
Aetiology of acute pancreatitis
Acute inflammation
Primary insult
Release of activated pancreatic enzyme
Auto digestion
RF for acute pancreatitis
Alcohol abuse Gallstones Trauma -blunt -post op -post ERCP (endoscopy looking at pancreas and bileduct) Drugs Viruses Carcinoma Metabolic (Inc. Ca, triglycerides, dec. temp) Autoimmune Idiopathic
Ix for acute pancreatitis
Bloods -amylase/lipase -U+E -LFTs -ABGs -AXR and CXR -abdo US -CT Glasgow criteria score >3=acute severe pancreatitis CRP>150mg/L
Tx for acute pancreatitis
Analgesia IV fluids Blood transfusion if Hb<10g/L Monitor urine output via catheter NG tube O2 May need insulin
If gallstones are present
EUS
MRCP
ERCP
If an abscess is present
Antibiotics
Drainage
If a psuedocyst is present Tx
Fluid collection without an epithelial lining Persistent hyperamylasia and/or pain Complications -jaundice -infection -haemorrhage -rupture
If its less than 6cm in diameter then it may resolve spontaneously
Endoscopic drainage or surgery of persistant pain or complications
What is the definition of chronic pancreatitis?
Inflammatory disease characterised by irreversible glandular destruction and typically causing pain and or loss of function
The genes associated with pancreatitis
PRSS1
SPINK1
CFTR
3 reasons for duct obstructions
Calculi
Inflammation
Protein plugs
Causes of abnormal sphincter of Oddi function
Spasm=increased pancreatic pressure
Relaxation=reflux of duodenal contents
What do genetic polymorphisms lead to
Abnormal trypsin activation
What happens physiologically for chronic pancreatitis
Glandular atrophy and replacement by fibrous tissue
Ducts become dilated, torturous and strictured
Inspissated (thickened or congealed) secretions may calcify
Splenic, superior mesenteric veins maybe thrombose>portal hypertension
S+S for chronic pancreatitis
Early disease is asymptomatic Abdominal pain Weight loss Exocrine insuffiency (fat malabsorption=steatorrhea, dec.fat soluble vitamins=dec.Ca+Mg, protein malabsorption=weight loss, dec B12) Endocrine insuffiency=diabetes in 30%
Jaundice Portal hypertension GI haemorrhage Pseudocysts Pancreatic carcinoma
Ix for chronic pancreatitis
AXR US -pancreatic size -cysts -duct diameter -tumours CT scan Bloods -serum amylase increased in acute exacerbations -dec. albumin, prothrombin time and glucose -increased LFTs Pancreatic function tests (Lundh)
Tx for chronic pancreatitis
Avoid alcohol Pancreatic enzyme supplements Opiate aalgesia Coeliac plexus block Referral to pain clinic/psychologist Endoscopic treatment of pancreatic duct stones and strictures Surgery maybe Low fat diet Pancreatic enzyme supplements may need acid suppression to prevent hydrolysis in stomach Insulin for diabetes
4 types of pancreatic carcinomas
Duct cell mucinous adenocarcinoma
Carcinosarcoma
Cystadenocarcinoma
Acinar cell
Symtoms of pancreatic carcinoma
Upper abdominal pain Painless obstructive jaundice Weight loss Anorexia, fatigue, steatorrhea/diarrhoea, nausea and vomiting Tendersubcutaneous fat nodules due to metastatic fat necrosis Thrombophlebitis migran (inflammatory process which causes blood to clot in veins which are recurrent and in different places) Ascites (abnormal fluid in the abdomen) Portal hypertension Hepatomegaly/splenomegaly Jaundice Abdominal mass Supraclavicular lymphadenopathy Palpable gallbladder
4 RFs for pancreatic carcinoma
Smoking
Chronic pancreatitis
Hereditary pancreatitis
Inherited predisposition
Ix for pancreatic carcinoma?
Bloods CXR USS ERCP Laparoscopy Patient assessment: -basic history and exam -CXR, ECG -resp function tests -physiological scoring - -performance status - -lactate threshold - -no test established
Two types of surgical Tx for pancreatic carcinoma?
Kausch-wipple
PPPD
How do you know if acute pancreatitis is mild or severe?
Mild=minimal organ dysfunction and an uneventful recovery
Severe=associated with organ failure or local complication
4 local complications of acute pancreatitis?
Acute fluid collections
Pseudocysts
Pancreatic abscess
Pancreatic necrosis
RFs for acute pancreatitis
GET SMASHED
Gallstones
Ethanol
Trauma
Scorpion sting Mumps Autoimmune Steroids Hypercalcemia/hypertriglycerides ERCP Drugs
Is NBM enforced after surgery?
No, nutrition is vital
RFs for chronic pancreatitis?
O A TIGER
Obstruction Autoimmune Toxin Idiopathic Genetic Recurrent injuries