Pancreatic Disease Flashcards

1
Q

what is the pancreatic duct?

A

duct of wirsung

empties into SB at ampulla of vater

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2
Q

what is the accessory duct?

A

duct of santorini

empties into SB superior to pancreatic duct

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3
Q

what makes up 99% of the pancreas?

A

acini (responsible for exocrine functions)

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4
Q

how much fluid does pancreas make?

A

1.5L

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5
Q

what is consistency of pancreatic juices?

A

clear, colorless, water, has salts, is alkaline and contains digestive enzymes (7.1-8.2-bicarb)

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6
Q

what does amylase do?

A

digests carbs

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7
Q

what does lipase do?

A

digests triglycerides

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8
Q

what do trypsin and chymotrypsin do?

A

protein digestion

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9
Q

what does the pancreatic polypeptide do?

A

inhibits secretion of somatostatin

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10
Q

what does somatostatin do?

A

inhibits secretion of insulin and slows absorption of nutrients

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11
Q

why is pancreas exocrine function important?

A

alteration can lead to malabsorption

-diarrhea, fat soluble vitamin loss

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12
Q

what is auto-digestion?

A

early activation of inactive pro-enzymes (caused by injury)

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13
Q

what is the MCC of acute pancreatitis?

A

gallstones
alcohol (2nd)
together account for 65%

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14
Q

what is MCC of metabolic pancreatitis?

A

hyperlipidemia (>2000 triglycerides)

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15
Q

what are hereditary causes of acute pancreatitis?

A
cystic fibrosis (plugs pancreas ducts)
hereditary
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16
Q

what is post _ERCP pancreatitis?

A

manipulation during surgery causes problem, can be more severe

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17
Q

what is MC drug related to acute pancreatitis?

A

HCTZ

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18
Q

what are features of acute pancreatitis?

A
  1. discrete episode
  2. abd pain severe, epigastrium
  3. n/v
  4. elevated amylase, lipase (2-3 times upper limit)
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19
Q

what is CC of pancreatitis pt?

A
abrupt onset
severe, persistent
epigastric radiating to the back
lasts hours to days
n/v but no relief
made better by lying down
20
Q

what indicates poor prognosis with acute pancreatitis?

A

Cullens or Turners sign

21
Q

which lab test is more specific for acute pancreatitis?

A

lipase-is elevated longer (single best marker for pancreatitis)

22
Q

which enzyme level increases first?

A

amylase

23
Q

what is a very bad sign for blood test in acute pancreatitis?

A

elevated Hgb, hematocrit

24
Q

what is another bad sign for blood work in acute pancreatitis?

A

elevated CRP >150 at 48 hrs

25
Q

why test the triglycerides?

A

if it is very high, you can correct and improve problem going forward

26
Q

what is the purpose of a plain film?

A

r/o surgical emergency

27
Q

what is a sentinel loop?

A

focal pocket of air caused by slowed motility

28
Q

what is role of CT scan for pancreas?

A

evaluate staging and r/o pancreatic necrosis

29
Q

what is the role of MRI scan for pancreas?

A

better at differentiating pseudocysts

30
Q

what is the role of US for pancreas?

A

r/o GB stones and biliary dilation

31
Q

when would you do ERCP?

A

limited use in acute phase, usually let all inflammation calm down first

32
Q

which criteria do you use to assess pancreatitis?

A

Ranson’s criteria, admit or not, complications or not

more points = more mortality

33
Q

what is the txment approach for pancreatitis?

A
NPO, NPO
Fluids, fluids, fluids
anti-emetic
analgesics (demerol, dilaudid)
NG tube (in case of ileus)
abx (no for mild)
34
Q

what is an bad complication of pancreatitis?

A

renal failure

pancreatic necrosis

35
Q

what differentiates pseudocysts from regular cysts?

A

pseudocyst is lined with granulation tissue (inflammatory) as opposed to true cysts that are lined with epithelium

36
Q

when does it become a pseudocyst?

A

after 4 weeks of being there

37
Q

when would you drain pseudocyst?

A

only if they are really big

38
Q

what is chronic pancreatitis?

A

repeated injuries interrupt the pancreas’s ability to function appropriately

39
Q

what are sxs of chronic pancreatitis?

A

chronic pain (worse with fatty, greasy food)
steatorrhea (yellowish, oily, floating stools)
malabsorption (loss of ADEK-fat soluble nutrients)
weight loss

40
Q

how do you treat chronic pancreatitis?

A
low fat diet
pancreatic enzymes
NO ETOH-inc cancer risk
NO SMOKING-inc cancer risk
screen for cancer
41
Q

what is MC type of pancreatic cancer?

A

ductal epithelium

42
Q

how do pancreatic cancer pts present?

A
wt loss**
Obstructive jaundice (painless)**
new onset DM
epigastric pain
n/v
43
Q

when is jaundice a/w cancer?

A

painless

with pain is a/w stones and other causes

44
Q

what tells you about resectability of pancreas tumor?

A
CT w/thin slice
Endoscopic ultrasound (EUS)-determines blood vessel involvement
45
Q

what is the pancreatic tumor marker?

A

CA19-9

levels >1000 mean its unresectable

46
Q

which arteries determine resectability of pancreatic tumor?

A

SMA, ?

47
Q

what is surgery for pancreatic cancer called?

A

whipple