011415 pancreatitis Flashcards
acute pancreatitis
first TWO WEEKS:
SIRS, organ failure
after TWO WEEKS:
sepsis (fluid is infected) and its complications
causes of acute pancreatitis are varied-how do their symptoms compare?
the same regardless of cause
causes of acute pancreatitis
GALLSTONES alcohol hypertriglyceridemia pancreas divisum genetic causes (PRSS1, CFTR, SPINK1)
PRSS1
causes hereditary pancreatitis b/c of lack of control of trypsin activity (either by preventing premature activation of trypsinogen or by destruction of trypsin from the pancreas)
early acute changes in acute pancreatitis are due to
intraacinar activation of proteolytic enzymes (generates large amt of active trypsin within pancreas)
pancreatic autodigestion
systemic complications are seen in what percentage of pts with acute pancreatitis?
minority
persistent, severe epigastric abdominal pain that can radiate to the back
acute pancreatitis
diagnosis of acute pancreatitis-lab findings
amylase elevated
lipase elevated
acute pancreatitis-diagnosis requires two of the three:
constant epigastric or RUQ abd pain with radiation to back, chest or flanks
serum amylase and/or lipase is 3 times upper range of normal
characteristic abd imaging findings
complications of acute pancreatitis
local:
- –acute peripancreatic fluid collection (under 4 wks) and pseudocysts (over 4 wks)
- –acute necrotic collection (infection of fluid collection)
acute peripancreatic fluid and pseudocysts are related how?
they are the same thing (only difference is the time since acute pancreatitis has begun)
causes of chronic pancreatitis
alcohol cigarette smoking ductal obstruction (pancreas divisum) ampullary obstruction (small cancer) autoimmune pancreatitis genetic
imaging of chronic pancreatitis shows
pancreatic CALCIFICATION
ductal dilatation
enlargement of pancreas
fluid collections
pathogenesis of chronic pancreatitis
proteinaceous ductal plugs within ducts—lead to calcifications–lead to stones within ducts, causing scarring and obstruction
pseudocysts
ductal disruption (can cause pain)