Hepatobiliary surgery Flashcards

1
Q

what are gallstones made up of?

A

phospholipids - lecithin
bile pigments
cholesterol

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2
Q

what causes gallstones ?

A

lithogenic bile
binary sepsis
gall bladder hypo motility (pregnancy, OCP, TPN, fasting)

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3
Q

what are the three types of gall stones ?

A

cholesterol

pigment

mixed

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4
Q

what are pigment gall stones made of?

A

calcium bilirubinate

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5
Q

what do cholesterol gall stones look like?

A

large, solitary

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6
Q

what do pigment gall stones look like?

A

small, black, gritty, fragile

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7
Q

what are pigment stones associated with ?

A

haemolysis

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8
Q

what is the major component of mixed stones?

A

cholesterol

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9
Q

what are gall bladder stones complications ?

A
biliary colic 
acute cholecystitis 
chronic cholecysitis 
mucocele 
carcinoma 
mirizzis syndrome (common bile duct obstruction)
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10
Q

what are common bile duct gall stone complications ?

A

obstructive jaundice
pancreatitis
cholangitis

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11
Q

what are gut gall stones complications ?

A

gallstone ileus

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12
Q

what urine tests should be done for biliary colic?

A

bilirubin, urobilinogen, Hb

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13
Q

what blood tests should be done for biliary colic ?

A

FBC, U&E, amylase, LFT, clotting, CRP, group and save

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14
Q

what will stones look like on US?

A

acoustic shadow

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15
Q

what imaging can be done for biliary colic?

A

AXR, US, cholescintigraphy, MRCP

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16
Q

what is boas sign?

A

Hyperaesthesia below the right scapula

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17
Q

what is murphys sign?

A

2 fingers over the GB and ask pt. to breath in

􏰁 → pain and breath catch. Must be –ve on the L

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18
Q

what is the management of acute cholecystitis ?

A

NBM
􏰁 Fluid resuscitation
􏰁 Analgesia: paracetamol, diclofenac, codeine 􏰁 Abx: cefuroxime and metronidazole

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19
Q

in what condition is boas sign and murphys sign seen?

A

acute cholecystitis

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20
Q

what is DD for chronic cholecysitis?

A

PUD
􏰀 IBS
􏰀 Hiatus hernia
􏰀 Chronic pancreatitis

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21
Q

what is the surgical treatment for chronic cholecysitis ?

A

Elective cholecystectomy

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22
Q

what is a calcified gall bladder called?

A

porcelain gall bladder

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23
Q

what is Riglers triad?

A

Pneumobiliia

􏰁 Small bowel obstruction 􏰁 Gallstone in RLQ

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24
Q

where is jaundice seen first ?

A

tongue frenulum

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25
what happens to INR during obstructive jaundice?
increases due to low Vit K as bile can't get through to break down fat and Vit K
26
what immune antibodies should be checked with obstructive jaundice?
anti mitochondrial antibodies ANCE ANA
27
what antibodies are found with coeliac disease?
anti endomysal | anti transglutaminase
28
what does Pneumobilia on AXR suggest?
gas forming infection
29
what is the conservative management of obstructive jaundice?
Monitor LFTs: passage of stone may → resolution 􏰁 Vitamins ADEK 􏰁 Analgesia 􏰁 Cholestyramine
30
what are the two signs seen in ascending cholangitis ?
charcots triad | raynaulds pentad
31
what is charcots triad?
ever/rigors, RUQ pain, jaundice
32
what is raynaulds pentad?
Charcot’s triad + shock + confusion
33
what antibiotics should be given for ascending cholangitis ?
cef and met
34
what is the most common type of pancreatic cancer?
ductal adenocarcinoma
35
what surgery can be for pancreatic cancer?
Whipple’s pancreaticoduodenectomy | 􏰁 Distal pancreatectomy
36
state some DD of acute pancreatitis ?
Perforated DU 􏰀 Mesenteric infarction 􏰀 MI
37
is amylase and lipase increased or decreased with acute pancreatitis ?
increased | returns to normal by day 6
38
is Ca increased or decreased with acute pancreatitis ?
decreased
39
is Glc increased or decreased with acute pancreatitis ?
increased
40
what are some complications of acute pancreatitis ?
``` ARDs shock renal failure DIC increased Glc hypo/hyper calcium alcohol withdrawal ```
41
what are the indications of laparotomy with acute pancreatitis ?
Infected pancreatic necrosis 􏰀 Pseudocyst or abscess | 􏰀 Unsure Dx
42
state some late complications of acute pancreatitis?
necrosis, infection, abscess bleeding thrombosis fistula formation
43
state some causes of chronic pancreatitis
alcohol | genetics - CF, haemochromatosis
44
how is chronic pancreatitis is relieved ?
sitting back
45
what is the presentation of chronic pancreatitis ?
``` epigastric pain steatorrhoea weight loss DM - polyuria/dipsia epigastric mass (pseudocyst) ```
46
is faecal elastase increased or decreased with chronic pancreatitis?
decreased
47
what could be seen on CT or XR of chronic pancreatitis?
calcifications
48
what clinical sign would splenic vein thrombosis have?
splenomegaly
49
what are complications of chronic pancreatitis ?
``` Pseudocyst 􏰀 DM 􏰀 Pancreatic Ca 􏰀 Pancreatic swelling → biliary obstruction 􏰀 Splenic vein thrombosis → splenomegaly ```
50
what causes WDHA syndrome ?
vasoactive intestinal peptide (VIPoma) causing - watery diarrhoea - hypokalaemia - achlorhydria - acidosis
51
what are the features of somatostatinoma ?
DM steatorrhoea gall stones
52
what is Meckel’s diverticulum?
congenital outpouching in the lower part of the small intestine
53
what are risk factors for cholangiocarcinomas?
PSC (primary sclerosing cholangitis) UC Choledocholithiasis Hep B/C
54
what is the presentation of cholangiocarcinomas?
progressive painless obstructive jaundice steatorrhoea weight loss
55
what tumour marker might be present with cholangiocarcinoma ?
CA 19-9
56
what cancers could CA19-9 indicate?
cholangiocarcinomas pancreatic CRC
57
what is the management of cholangiocarcinoma ?
poor prognosis | palliative stenting by ERCP
58
what is hydatid cyst?
calcified cyst of liver
59
what causes hydatid cyst?
Zoonotic infection by Echinococcus granulosus | 􏰀 Occurs in sheep-rearing communities
60
what is the treatment for hydatid cyst?
albendazole