Hepatobillary Flashcards

(150 cards)

1
Q

What are the functions of the liver?

A
  • Synthesizes: glucose via gluconeogenesis and stores excess glucose as glycogen
  • Synthesizes: cholesterol & proteins into hormones and vitamins
  • Synthesizes: coagulation factors (all except factors III, IV, VIII, vWF)
  • Metabolizes: fats, proteins, carbs to generate energy
  • Metabolizes: drugs via CYP-540 and other enzyme pathways
  • Blood: Detoxifies
  • Blood: Processes Hgb and stores iron
  • Blood: Aids in volume control as a blood reservoir
  • Involved in the acute-phase of immune support

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2
Q

Nearly every organ is impacted by ____.

A

liver function- Liver dysfunction can lead to multi-organ failure

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3
Q

how many segments are in the liver?

A

8 segments
Based on blood supply & bile drainage

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4
Q

what are the R&L lobes separated by?

A

falciform ligament

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5
Q

____ vein and ____ artery branch into each segment

A
  • portal vein
  • hepatic artery

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6
Q

what 3 veins empty into IVC?

A

Right, Middle, Left hepatic veins

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7
Q
  • Bile ducts travel along ____.
  • Bile drains through the ____ into Gallbladder & Common Bile Duct
  • Bile enters duodenum via ____.
A
  • portal veins
  • hepatic duct
  • Ampulla of Vater

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8
Q

Liver recieves ____% of COP. which is about ____ L/min.

A
  • Receives 25% of COP
  • 1.25-1.5 liters per min
    highest proportionate COP of all organs

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9
Q

portal vein arises from ____ vein and ____ ____ vein

A
  • splenic vein
  • superior mesenteric vein

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10
Q

portal vein blood is deoxygenated from ?

A
  • GI organs
  • pancrease
  • spleen

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11
Q

portal vein provides ____% of HBF

A

75%

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12
Q

Which artery branches off the aorta?

A

hepatic artery

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13
Q

hepatic artery provides ____% of HBF

A

25%

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14
Q

how does the liver get O2?

A
  • 50% viaPortal vein (deoxygenated)
  • 50% via Hepatic artery

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15
Q

hepatic arterial blood flow is inversely related to

A

portal venous blood flow

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16
Q

how is hepatic blood flow autoregulated?

A

Hepatic art. dilates in response to low portal venous flow, keeping consistent HBF

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17
Q

Portal venous pressure reflects ____ tone and ____ pressure

A

splanchnic arterial tone and intrahepatic pressure

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18
Q

increased portal venous pressure causes

A

blood backsupinto to systemic circulation resulting in esophageal and gastric varices

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19
Q

hepatic venous pressure gradient is used to determine severity of?

A

portal hypertension

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20
Q

what is a normal Hepatic venous pressure gradient (HVPG)?

A

1-5 mmhg

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21
Q

this HVPG is clinically significant portal hypertension(cirrhosis, esophageal varicies)

A

> 10

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22
Q

this HVPG can see vriceal rupture

A

> 12

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23
Q

pts are often ____ until late-stage liver disease

A

asymptomatic

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24
Q

in later stages pts may only have??

A

vague s/s like disrupted sleep, and decreased appetite

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25
liver function assessment relies heavily on
risk factors for degree of suspicion | slide 8
26
Risk factors for impaired liver function (9)
Family hx Heavy ETOH Lifestyle DM Obesity Illicit Drug use Multiple partners Tattoos Transfusion | slide 8
27
physical findings for impaired liver function (7)
Pruritis Jaundice Ascites Asterixis (flapping tremor) Hepatomegaly Splenomegaly Spider nevi | slide 8
28
what labs are assessed for hepato-biliary function?
* BMP, CBC * PT/INR * Aspartate aminotransferase (AST) * Alanine aminotransferase (ALT) *most liver-specific enzymes* * Bilirubin * Alkaline Phosphatase * ɣ-glutamyl-transferase (GGT) | slide 9
29
what imaging is used for hepato-biliary function?
* Ultrasound * Doppler U/S (Portal bld flow) * CT * MRI | slide 9
30
what are the 3 groups of hepatobiliary disease per stoling?
1. hepatocellular injury 2. reduced synthetic function 3. cholestasis | slide 10
31
what do you see with hepatocellular injury?
* ↑AST/ALT (hepatocyte enzymes) * Acute Liver Failure (ALF): may be elevated 25x * Alcoholic Liver Dz (ALD):  AST:ALT ratio usually at least 2:1 * NAFLD: ratio usually 1:1 | slide 10
32
what do you see with reduced synthetic function?
* ↓Albumin * ↑PT/INR | slide 10
33
what do you see with cholestasis?
* ↑Alk Phosphatase * ↑GGT (gamma glutamyl transpeptidase) * ↑bilirubin | slide 10
34
what do blood test look like for bilirubin overload (hemolysis)? * amnotrasferase * serum albumin * prothrombin time * bilirubin * alkaline phhatase * gamma gluamyl tranpeptidase * blood urea nitrogen * BSP/ICG (dye)
* amnotrasferase: normal * serum albumin: normal * prothrombin time: normal * bilirubin: unconjugated * alkaline phhatase: normal * gamma gluamyl tranpeptidase: normal * blood urea nitrogen: normal * BSP/ICG (dye): normal | slide 11
35
what do blood test look like for hepatocellular injury? * amnotrasferase * serum albumin * prothrombin time * bilirubin * alkaline phhatase * gamma gluamyl tranpeptidase * blood urea nitrogen * BSP/ICG (dye)
* amnotrasferase: increased * serum albumin: decreased * prothrombin time: prolonged * bilirubin: conjugated * alkaline phhatase: normal * gamma gluamyl tranpeptidase: normal * blood urea nitrogen: normal * BSP/ICG (dye): retention of dye | slide 11
36
what do blood test look like for cholestasis? * amnotrasferase * serum albumin * prothrombin time * bilirubin * alkaline phhatase * gamma gluamyl tranpeptidase * blood urea nitrogen * BSP/ICG (dye)
* amnotrasferase: normal * serum albumin: normal * prothrombin time: normal * bilirubin: conjugated * alkaline phhatase: increased * gamma gluamyl tranpeptidase: increased * blood urea nitrogen: normal * BSP/ICG (dye): normal or retention of dye | slide 11
37
haptocytes secrete bile through bile duct into ____ which goes to ____ and ____
CHD→ GB & CBD | slide 12
38
____ stores bile to deliver during meals, and ____ secretes bile directly into duodenum
* GB * CBD | slide 12
39
risk facotrs for cholelithiasis? ____% are asymptomatic.
* Obesity * ↑cholesterol * DM * pregnancy * female * family hx **80% asymptomatic** | slide 12
40
s/s of cholelithiasis
* RUQ pain, referred to shoulders * N/V, indigestion * fever (acute obstruction) | slide 12
41
tx for cholelithiasis
* IVF, * abx, * pain management * **Lap Cholecystectomy** | slide 12
42
2 types of cholecystectomy
- laparoscopic - open | slide 13
43
Choledocolithiasis * cause * initial s/s * cholangitis s/s: * Tx:
* Stone obstructing CBD→ biliary colic * Initial sx: N/V, cramping, RUQ pain * Cholangitis sx: fever, rigors, jaundice * Tx: Endoscopic removal of stone via ERCP *Endoscopic Retrograde Cholangiopancreatography* | slide 14
44
how to perform endoscopic retrograde cholaniopancreatogrophy
Endoscopist threads guidewire through Sphincter of Oddi, into Ampulla of Vater to retrieve stone from pancreatic duct or CBD | slide 14
45
what position is ERCP normally positioned and what type of anesthesia do we use?
- usually prone w/left tilt (tape ETT to left) - GA | slide 14
46
what medication may be required to treat oddi spasm
glucogon | slide 14
47
what is bilirubin
end product of heme-breakdown | slide 17
48
what is hyperbilirubinemia
Unconjugated "indirect" bilirubin is protein bound to albumin, transported to liver, conjugated into to its H20-soluble “direct” state, excreted into bile | slide 17 ## Footnote verify this
49
what is unconjugated (indirect) hyperbilirubinemia
imbalance between bilirubin synthesis & conjugation | slide 17
50
what is conjugated (direct) hyperbilirubinemia: 
caused by an obstruction, causing reflux of conjugated bilirubin into the circulation | slide 17
51
5 most common types of viral hepatitis
- a - b - c - d - e | slide 18
52
overal viral hepatitis is on the decline d/t vaccinees and newer treatment, however ____ and ____ are more chronic.
* b and c | slide 18
53
what is the most common VH requiring liver transplant in US
Hepatitis C Virus | slide 18
54
what tx has reduced HCV in USA?
* Treatment based on HCV genotype (75% type 1), HCV stage, +/- cirrhosis * 12 week course Sofosbuvir/Velpatasvir * Provides 98-99% clearance of genotype 1A/1B  | slide 18
55
charecterisitc features of viral hepatiis
* B & C are bloodborne * B & C are chronic * C is the most chronic (75%) * Long incubation periods | slide 20
56
Alcoholic liver disease (ALD) is ____ in America and the ____ cause of cirrhosis.
* increasing * most common | slide 21
57
what is the top indication for liver transplants US
ALD *national prevalence liver transplant for ALD is 2%* | slide 21
58
what is treatment for ALD?
* Treatment centered around abstinence  * Management symptomes of liver failure * Platelet count < 50,000 requires blood transfusion * Liver transfusion an option if criteria is met | slide 21
59
s/s of ALD (8)
* Malnutrition * Muscle wasting * Parotid gland hypertrophy * Jaundice * thrombocytopenia * Ascites * Hepatosplenomegaly * Pedal edema *Sx of ETOH withdrawal may occur 24-72h after stopping John Makes Me Paranoid At Home Through Phonecalls | slide 22
60
lab values for ALD
* ↑Mean corpuscular volume (MCV) * ↑Liver enzymes * ↑ɣ-glutamyl-transferase (GGT) * ↑Bilirubin * Blood ethanol (acute intox) | slide 22
61
Non-alchoholic fatty liver disease is when hapatocytes contain ____% fat and is r/t what 4 things?
* > 5% fat * Obesity, Insulin resistance, DM2, Metabolic syndrome | slide 23
62
NAFLD progresses to
NASH (nonalcoholic steatohepatitis), cirrhosis, hepatocellular carcinoma *NAFLD & NASH have become additional leading causes of liver transplant in US* | slide 23
63
NAFLD: * diagnose: * Tx:
**Dx: Imaging and histology** - Liver biopsy= gold standard in distinguishing NAFLD from other liver dx **Tx: Diet, exercise** - Liver transplant is indicated for advanced fibrosis, cirrhosis, related complications | slide 23
64
autoimmune hepatitis predominantly effects ____ and may be ____, ____, or ____.
* women * asymptomatic, acute, or chronic | slide 26
65
pt with autoimmune hepatitis have _ & _ AST/ALT may be ____ in acute AIH
* +autoantibodies & hypergammaglobulinemia * 10-20x more than normal | slide 26
66
Autoimmune Hepatitis treatment
steroids, azathioprine | slide 26
67
in AIH ____% achieve remission but relapse is common. Refactory disease requires ____. When is liver transplant indicated?
- **60-80%** achieve remission; relapse is common * Refractory disease requires **immunosuppression ** * Liver transplant indicated when tx fails or acute liver failure ensues | slide 26
68
Drug induced liver injury is most commonly caused by and is normally reversable after ____?
* Most common cause: Acetaminophen OD * Normally reversable after drug is removed | slide 26
69
* what is inborn errors of metabolism
* Group of rare, genetically inherited disorders that lead to a defect in the enzymes that breakdown and store protein, carbohydrates & fatty acids | slide 27
70
inborn errors of metabolism occurs in
1: 2500 births | slide 27
71
inborn errors of metabolism onset varies from birth to adolescenst but when do the most severe forms appear?
Most severe forms appear in the neonatal period and carry a high degree of mortality | slide 27
72
what 3 specific disorders cause inborn errors of metabolism?
* Wilsons Disease * Alpha-1 Antitrypsin Deficiency * Hemochromatosis | slide 27
73
What is wilsons disease AKA hepatolenticular degeneration
* Autosomal recessive disease characterized by impaired copper metabolism * Excessive copper buildup leads to oxidative stress in the liver, basal ganglia, and cornea | slide 28
74
Wilsons disease: * S/s: * Dx: * TX:
* Sx: range from asymptomatic to sudden-onset liver failure along with neurologic & psychiatric manifestations * Dx: Lab tests (serum ceruloplasmin, aminotransferases,  urine copper level) Possible liver biopsy for copper level * Tx: Copper-chelation therapy & oral zinc to bind copper in the GI tract | slide 28
75
what is alpha 1 antitrypsin deficiency?
Gentetic disorder resulting in a defective α-1 antitrypsin protein | slide 29
76
α-1 antitrypsin proteins protect the liver & lungs from ____ which is an enzyme that causes disruption of connective tissues, leading to inflammation, cirrhosis, and HCC
* neutrophil elastase: an enzyme that causes disruption of connective tissues, leading to inflammation, cirrhosis, and HCC | slide 29
77
what is the incidence of alpha-1 antitrypsin deficiency?
Incidence 1: 16,000 to 1: 35,000, although it is likely underdiagnosed | slide 29
78
what disorder is the number 1 genetic cause of liver transplant in childer
α-1 antitrypsin deficiency is the #1 genetic cause of liver transplant in children | slide 29
79
alpha 1 antitrypsin deficiency: * dx * tx
* Dx: confirmed w/ α-1 antitrypsin phenotyping * Tx: pooled α-1 antitrypsin is effective for pulmonary symptoms; however, it doesn’t help with liver disease **Liver transplant is the only curative treatment for liver disease in α-1 antitrypsin deficiency** | slide 29
80
what is hemochromatosis
* Disorder assoc w/ excess iron in the body, leading to multi-organ dysfunction * May be genetic, causing excessive intestinal absorption of iron * May also be caused by repetitive blood transfusions or high-dose iron infusions * Excess iron accumulates in organs and causes damage to the tissues | slide 30
81
pts with hemochromatosis may present with
cirrhosis, heart failure, diabetes, adrenal insufficiency, or polyarthropathy | slide 30
82
what will labs show with hemochromatosis?
Labs reveal elevated AST/ALT, transferrin saturation, and ferritin | slide 30
83
Hemochromatosis: * dx: * tx:
* Dx: genetic mutation testing, Echocardiogram & MRI diagnose cardiomyopathies and liver abnormalities * Liver bx may quantify iron levels in the liver and assess the level of damage * Tx: weekly phlebotomy, iron-chelating drugs, liver transplant | slide 30
84
What is primary biliary cholangitis (PBC), previously known as biliary cirrhosis
* Autoimmune, progressive destruction of bile ducts with periportal inflammation & cholestasis * Can lead to liver scarring, fibrosis, cirrhosis * Females > Males; often dx'd in middle-ages * Thought to be complicated by exposure to environmental toxins in genetically susceptible individuals | slide 31
85
PBC: * s/s * labs * imaging * tx:
* Sx: jaundice, fatigue, & itching * Labs: ↑Alk Phos,↑GGT, + Antimitochondrial antibodies * Imaging: CT, MRI, & MRCP to r/o bile duct obstructions * Liver biopsy reveals bile duct destruction and infiltration w/lymphocytes * Tx: No cure, but exogenous bile acids slow progression | slide 31
86
what is primary sclerosing cholangitis (PSC)
* Autoimmune, chronic inflammation of the larger bile ducts * Intrahepatic and extrahepatic * Fibrosis in biliary tree→strictures (beads on string appearance)→ cirrhosis, ESLD * Males>Females, onset   ̴40’s | slide 32
87
PSC: * s/s * labs * dx * liver biopsy * drug tx
* Sx: Fatigue, itching, deficiency of fat-soluble vitamins (A,D,E,K), cirrhosis * Labs: ↑alkaline phosphatase and ɣ-glutamyl-transferase, +auto-antibodies * Dx: MRCP or ERCP showing biliary strictures w/ dilated bile ducts * Liver biopsy reinforces dx, but isn't always performed  * No drug treatments are proven to be effective * Liver transplant is only long term treatment * Re-occurrence is common after transplant d/t autoimmune nature | slide 32
88
Easy way to differentiats between Primary Sclerosing and Primary Biliary Cholangitis
* Primary Sclerosing: "beads on a string" from fibrosis, also Intra AND extrahepatic * Primary Biliary: intrahepatic ducts affected only
89
this is a life-threatening severe liver injury occurring within days to 6 months after insult and has a rapid increase in AST/ALT, AMS, coagulopathy
acute liver failure | slide 34
90
how many cases of acute liver failure are drug inced?
50% (majority tylenol) | slide 34
91
other causes of acute liver failure (5)
* Viral hepatitis, * autoimmune * hypoxia, * ALF of pregnancy, * HELLP (Hemolysis, Elevated Liver Enzymes and Low Platelets) | slide 34
92
how does acute liver failure happen?
Massive hepatocyte necrosis→ cellular swelling & membrane disruption | slide 34
93
acute liver failure: - s/s - tx:
* Sx: Jaundice, nausea, RUQ pain, cerebral edema, encephalopathy, multi-organ failure, death * Tx: Treat the cause, supportive care, liver transplant | slide 34
94
this is the final stage of liver disease where normal liver parenchyma is replaced with scar tissue, and is often asymtomatic in early stages
cirrhosis | slide 35
95
s/s of cirrhosis
* jaundice * ascites * varices * coagulopathy * encephalopathy | slide 35
96
most common causes of cirrhosis
Alcoholic fatty liver, NAFL, HCV, HBV | slide 35
97
Chirrhosis: - labs - tx:
* Elevated labs: AST/ALT, bilirubin, Alk phosphatase, PT/INR *Thrombocytopenia* * Transplant is only cure | slide 35
98
complications of cirrhosis (8)
* portal HTN * ascites * spontaneous bacterial peritonitis * varices * hepatic encephalopathy * hepatorenal syndrome * hepatopulmonary syndrome * portopulmonary HTN | slide 36-38
99
this has HVPG >5 and ↑vascular resistance within the portal venous system
portal htn | slide 36
100
this is the most common complication of cirrhosis, where portal-HTN leads to ↑blood volume & peritoneal accumulation of fluid. It is managed with ↓Salt diet, albumin replacement or Transjugular Intrahepatic Portosystemic Shunt (TIPS).
ascities *TIPS- Reduces P-HTN and ascites* | slide 36
101
this is the most common infection r/t cirrhosis and requires abx
Spontaneous Bacterial Peritonitis | slide 36
102
this is present in ̴50% cirrhosis pts
varices | slide 37
103
Hemorrhage is most lethal complication of cirrhosis, what can be done to help prevent this/treat it?
* Beta blockers help reduce risk * Prophylactic endoscopic variceal banding & ligation * Refractory bleeding → balloon tamponade | slide 37
104
this is a buildup of nitrogenous waste d/t poor liver detoxification. It has neuropsychiatric symptoms (cognitive impairment → coma).
hepatic encephalopathy | slide 37
105
tx for hepatic encephalopathy
* Lactulose, Rifaximin to ↓ammonia-producing bacteria in gut | slide 37
106
what is hepatorenal syndrome and what is it tx?
* Excess endogenous vasodilators (NO, PGs)→↓systemic MAP→↓RBF * Tx: Midodrine, Octreotide, Albumin | slide 38
107
hepatopulmonary syndrome has a triad of chronic liver disease which is?
* hypoxemia * intrapulmonary vascular dilation * platypnea (hypoxemia when upright) d/t R to L intrapulmonary shunt | slide 38
108
what is portopulmonary HTN? what is its tx?
* Pulmonary HTN accompanied by portal HTN. Systemic vasodilation triggers production of pulmonary vasoconstrictors * Tx: PD-I’s, NO, prostacyclin analogs, and endothelin receptor antagonists. **Transplant is only cure** | slide 38
109
for anesthesia with liver disease pts when is elective surgery contraindicated?
* acute hepatitis * severe chronic hepatitis * ALF | slide 39
110
what are the 2 scoring systems to determine severity and prognosis of liver disese?
* Child-Turcotte-Pugh (CTP): * Model for End Stage Liver Disease (MELD) | slide 39
111
what is Child-Turcotte-Pugh (CTP)
points based on bilirubin, albumin, PT, encephalopathy, ascites Ask Bill, Al, Pete, and Brian (Brain=brain/encephalopathy) | slide 39
112
what is the Model for End Stage Liver Disease (MELD):
score based on bilirubin, INR, creatinine, sodium double date for Bill, Iris, Craig and Sarah | slide 39
113
here is aguide on whether or not to proceed or cancel surgery for pts with liver disease
| slide 40
114
what preop labs should be performed in pts with liver disease?
* CBC * BMP * PT/INR | slide 41
115
Liver disease has a ____ threshold for invasive moniotoring, and an increased risk for?
* Low threshold * increased risk for aspiration, hypotension, hypoxemia | slide 41
116
what is better for resuscitation for liver disease?
colloids > crystalloids | slide 41
117
how does alcholism effect MAC?
increases MAC of volatile anesthetics | slide 41
118
with liver disease what should be considered with medications? And what anesthesia meds are ideal?
* drugs may have a slow onset or a prolonged duration of action * Succs and cisatricurium are ideal because they are not liver metabolized | slide 41
119
what may be decreased in severe liver disease?
plasma cholineterase | slide 41
120
what should be controlled in pts with liver disease
bleeding/coagulation | slide 41
121
What is Transjugular Intrahepatic Portosystemic Shunt (TIPS_
* procedure to manage portal HTN * Stent or graft placed btw hepatic vein and portal vein * Shunts portal flow to systemic circulation * Reduces the portosystemic pressure gradient | slide 41
122
what are the indications for TIPS procdure? contraindications?
Indications: * Refractory variceal hemorrhage * Refractory ascites Contraindications: * Heart Failure * Tricuspid regurgitation * Severe pulmonary HTN | slide 42
123
This is a resection to remove neoplasms, leaving adequate tissue for regeneration. It has a tolerable amount of resection d/o preexisting liver disease and function, and up to 75% removal is tolerated in pts with normal liver function
partial hepatectomy | slide 43
124
anesthesia considerations for a partial hepatectomy
* Invasive monitoring * Blood products available * Adequate vascular access for blood/pressors | slide 43
125
what may a surgeron due to control blood loss during a partial hepatectomy?
* clamp IVC or hepatic artery | slide 43
126
what is stardard practice for a partial hepatectomy to reduce blood loss?
Standard practice is to maintain low CVP by fluid restriction, prior to resection to reduce blood loss | slide 43
127
what do pts often require in PACU after a partial hepatectomy?
PCA postoperatively | slide 43
128
postop coagulation disturbances are caused by
liver resection | slide 43
129
what is a definitive treatmeant for ESLD?
liver transplant | slide 44
130
what is the most common indication for a liver transplant? what are other reasons for one?
* alcoholic liver disease *most common* * fatty liver * Hepatocellular carcinoma (HCC) | slide 44
131
why do we time living donor liver transplants at the same time?
minimal ischemia time | slide 44
132
what is done with a liver that is harvested from brain dead donor
liver is kept hemodynamically stable for organ to perfuse | slide 44
133
what is the intraoperative management for a liver transplant?
* Maintain hemodynamics (Pressors/Inotropes readily available) A-line, CVC, PA cath, TEE * Control coagulation | slide 44
134
Surgical and anesthesia considerations for liver transplant: (this is mostly an FYI for practice) * preoperative * disection * anhepatic * reperfusion * posttransplantation
* Preoperative: Surgical - transplantation evaluation Anesthetic - preop eval, vascular access, blood availability * Dissection: Surgical - incision, mobilization of liver and vascular structures Anesthetic - hemodynamic compromise from fluid loss * Anhepatic: surgical - clamping of hepatic artery, portal vein, removal of diseased liver, anastomosis of IVC. Anesthetic - hemodynamic compromise from full or partial IVC clamping, metabolic acidosis from citrate intoxication * Reperfusion: Surgical - anastomosis of hepatic artery Anesthesia - hemodynamic instability, dysrhythmias, hyperkalemia, acidosis * Posttransplantation: surgical - hemostasis, eval graft, US. Anesthesia - ICU admission, early or late extubation, management of hemodynamics | slide 45
135
t/f The liver is the largest internal organ in the body
True | kahoot
136
What are the metabolic functions of the liver?
a. Carbohydrate metabolism b. Protein metabolism c. Fat metabolism d. Rocuronium metabolism | kahoot
137
What part of the liver cleans the blood as it passes through
Kupffer cells | kahoot
138
The liver performs which of the following a. Forms many compounds from carbohydrate intermediaries b. Conversion of galactose and fructose to glucose c. Glucogenesis d. Storage of large amount of glycogen
all of them | kahoot
139
The most common cause of cirrhosis is?
ETOH | kahoot
140
t/f Cirrhosis results in splenomegaly, esophageal varices and left heart failure
False, its right heart failure | kahoot
141
Cirrhotic patients should be resuscitated with
Colloids | kahoot
142
vitamin k is used to treat an elevated PT which measures the ____ pathway
Extrinsic | kahoot
143
A platelet count less than ____ requires preoperative replacement a. 100K, 150K, 50K, 75K
all of them | kahoot ## Footnote bri is confused by this
144
# t/f Anesthetic drugs may cause postoperative liver dysfunction to be exaggerated
True | kahoot
145
t/f Chronic alcoholism increases MAC for iso and this probably due to cross tolerance
True | kahoot ## Footnote Marlea is confused by this - direct contradiction to Kane Ashley is also confused by this...:(
146
Plasma cholinesterase may be ____ in severe liver disease
Decreased | kahoot
147
Manifestation of alcohol withdrrawl occur in ____ hours after receiving no alcohol intake
24-72 hrs | kahoot
148
T/F Hepatitis is the most commonly transmitted blood borne pathogen
False | kahoot
149
Drugs that can cause hepatitis include
* Analgesics * Anticonvulsants * VAA’s * Tranquilizers | kahoot
150
What surgical procedure is associated with the highest mortality a. Bka b. Orif of the tibia c. Laparotomy d. Coronary angioplasty
C. laparotomy | kahoot