pancreatic diseases Flashcards
case 1: hx gallstones 1 day hx of sev. epigastric pain radiates to mid-upper back N/V, diaphoretic, have a fever T=100.7F P=108 RR=18 BP=100/48 questions?
GERD, ulcers, taking PPIs? better/worse with food? peritoneal signs (radiation to back) MI
ask if similar presentation to past gallstone attacks
Acute Pancreatitis
Most cases are related to the biliary tract (often a passed gallstone) or heavy alcohol intake
Generally there is some insult to the ampulla of Vater causing obstruction and reflux of bile into the pancreatic ducts causing damage and inflammation to the cells of the pancreas
other considerations for acute pancreatitis
ERCP procedure itself can cause pancreatitis
Medications, viruses, autoimmune, high cholesterol also are considerations
acute pancreatitis acronym
GET SMASHED
gallstones
etOH
trauma
steroids mumps autoimmune scorpion venom hypothermia hyperlipidemia ERCP drugs: azathioprine, thiazides, na valproate, tetracycline
pancreatitis clinical findings
Most pts have epigastric abdominal pain
Often abrupt onset, radiates to the back, worse when laying flat
Better when laying in the fetal position or leaning forward
N/V, often fever, may have mild jaundice, tender abdomen
Possible history of a heavy meal or heavy alcohol consumption prior to the attack
pancreatitis labs
Elevations in amylase and lipase (more specific)
Generally 3x the upper limits of normal within 24 hours of symptoms
Return to normal is variable
Lipase remains elevated longer than amylase and is slightly more accurate for the diagnosis of acute pancreatitis
Elevated WBC count (can be pure inflammation)
Hyperglycemia (pancreas isn’t functioning properly) (may become DM)
Hyperbilirubinemia and/or elevated LFTs may be present as well
High crea is associated with progression to pancreatic necrosis
?? can independently be associated with a greater mortality rate
Presence of a systemic inflammatory response syndrome (SIRS) or sepsis
?? is widely used to determine the severity of acute alcoholic pancreatitis
Ranson’s criteria
Sensitivity of predicting a severe course as accurate as 60-80% based on these criteria
each factor worth a point
more than 3 positives: pancreatitis is likely
less than 3: pancreatitis unlikely
the greater, higher mortality: 4-6: 50% mortality
close to all positive: almost 100% mortality
Ranson’s criteria
Blood glucose > 200 mg/dL Age in years > 55 years Serum LDH > 350 IU/L Serum AST > 250 IU/L White blood cell count > 16000 cells/mm3 Within 48 hours: Serum calcium less than 8.0 mg/dL Hematocrit fall > 10% Oxygen: PaO2 below 60mmHg BUN rise more than 5 mg/dL base deficit more than 4 mEq/L Sequestration of fluids > 6 L
mnemonic GALAW AND CHOBBS: Glucose, Age, LDH, AST and Whites; Calcium, Hematocrit, Oxygen, BUN, Base, Sequestration.
-the more risk factors you have to more severe of a case it is
if increase in score: increase in morbidity/mortality
pancreatitis imaging
Plain radiographs may show calcified gallstones
A “sentinel loop”
Segment of air-filled small intestine usually in the LUQ
“Colon cutoff sign”:
Gas-filled segment of transverse colon abruptly ending at the area of pancreatic inflammation
pancreatitis U/S
can be helpful for identifying gallstones/cholecystitis but generally not helpful for pancreatitis given overlying bowel gas
CT can help to identify an ??
enlarged or inflamed pancreas
Can also show necrosis, pseudocyst, or other complications
Pancreatitis EponymsPresent in 1-2% of cases…
Cullen’s sign
Grey Turner’s sign
may present together
imply pancreatic necrosis, higher risk of death
need volume resuscitation
Mild pancreatitis tx
most will subside over a few days
Bowel rest, bed rest, pain control
Fluid resuscitation
Classically meperidine has been given for pain preferentially over morphine due to risk of?
(Now thought to be an acceptable alternative and is often preferred)
Slowly resume p.o. diet when pain free (after “gut rest”), bowel sounds are present, and labs are improving
can go home when eating again
Severe pancreatitis tx
Large amounts of IVF resuscitation due to volume loss in necrotizing disease
Treatment of sepsis and evolving multi-organ dysfunction
Calcium replacement if hypocalcemic
Enteral feeding via nasojejunostomy preferred
Parenteral nutrition (TPN) in those with ileus