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Basics

Description
Epidemiology

Incidence

Difficult to quantify and regionally dependent on the presence of different risk factors

Prevalence

True prevalence of cirrhosis is unknown, as many compensated cases are undiagnosed.

Morbidity

  • In 2002: Cirrhosis caused 421,000 hospitalizations in the US.
  • In 2005: 112,000 discharges with chronic liver disease or cirrhosis as the first-listed diagnosis in the US.
  • Cirrhotic patients are at risk of developing hepatocellular carcinoma (10–25% of cases).

Mortality

  • Deaths per 100,000 population: 9.7
  • 12th leading cause of death in the US in 2007 (1.2% of all deaths)
Etiology/Risk Factors

Hepatitis C 26%; alcohol related 21%; hepatitis C plus alcohol 15%; hepatitis B 15%; cryptogenic causes 18% (70% are nonalcoholic fatty liver disease [NAFLD], an increasingly recognized cause of cirrhosis); miscellaneous 5% (autoimmune hepatitis, cholestatic liver diseases, cholangitis, hemochromatosis, Wilson's disease, alpha-1 antitrypsin deficiency, drug-induced, right-sided heart failure, Budd–Chiari)

Physiology/Pathophysiology
Anesthetic Goals/Guiding Principles

Diagnosis

Symptoms

Fatigue, nausea, decreased appetite, itching, right upper quadrant pain, abdominal distension, jaundice, dark urine, light stools, and easy bruising.

History

Prior blood transfusions, tattoos, illicit drug use, alcohol intake, sexual history, exposure to needle sticks, history of jaundice, and family history of liver disease.

Signs/Physical Exam

Icterus, palmar erythema, spider telangiectasia, gynecomastia, caput medusae, hepatosplenomegaly, abdominal distension and umbilical hernia from ascites, lower extremity edema, temporal wasting, loss of muscle mass, abnormal mental status, and asterixis.

Treatment History
Medications
Diagnostic Tests & Interpretation

Labs/Studies

  • Complete Blood Count (CBC), Complete Metabolic Panel (CMP), Prothrombin Time (PT), International Normalized Ratio (INR), Right Upper Quadrant (RUQ), Ejection Fraction (EF), Model for End Stage Liver Disease (MELD)
  • RUQ abdominal ultrasound with Doppler to evaluate parenchyma and portal venous blood flow
  • Abdominal CT or MRI to evaluate parenchyma (hepatocarcinoma) and vasculature
CONCOMITANT ORGAN DYSFUNCTION
Circumstances to delay/Conditions
Classifications

Treatment

Premedications

Judicious use of sedatives; may have prolonged central nervous system depression, and trigger/worsen hepatic encephalopathy.

INTRAOPERATIVE CARE

Choice of Anesthesia

  • Depends on the procedure
  • Regional anesthesia: Usual cautions and contraindications apply. Epidural hematomas are of greatest concern from the coagulopathy associated with liver surgery, especially in cirrhotic patients.

Monitors

  • Dependent on surgery. High-risk or prolonged procedure should have a low threshold for invasive monitors (arterial lines, central lines, "less invasive" cardiac output monitors).
  • Thromboelastogram may help clinicians to distinguish between medical versus surgical bleeding and guide the transfusion of blood products.

Induction/Airway Management

  • Induction may be associated with profound hypotension. Patients are often intravascularly volume depleted, but with total body volume overload.
  • Atracurium or cisatracurium are preferred muscle relaxants (metabolism is independent of the liver or kidney). Other muscle relaxants may be acceptable but can have prolonged duration.
  • Rapid sequence induction should be considered in patients with ascites or gastrointestinal bleeding.
  • Patients with ascites causing respiratory impairment (tachypnea, use of accessory muscles, hypoxia on pulse oximetry, or arterial blood gas) may require peritoneal drainage and albumin replacement prior to anesthesia induction.

Maintenance

  • Isoflurane, sevoflurane, and desflurane have limited liver metabolism and minimal impairment of hepatic arterial blood flow.
  • Halothane should be avoided; associated with mild hepatic dysfunction and severe immune-mediated hepatitis.
  • All opiates, except remifentanil, are metabolized by the liver, and should be used judiciously.

Extubation/Emergence

  • Standard extubation criteria
  • Slower emergence and return of neuromuscular function may result from a reduced ability to clear medications.
  • Patients at risk for aspiration should be wide awake prior to extubation; patients who have an altered level of consciousness may warrant postoperative intubation.

Follow-Up

Bed Acuity

Admission to an intensive care unit (ICU) may be indicated to monitor and support circulatory and respiratory function after intermediate/high risk procedure.

Medications/Lab Studies/Consults

Hepatology and hematology consultation may be considered for management of coagulopathy.

Complications

References

  1. Moller S , Henriksen JH. Cardiovascular complications of cirrhosis. Gut. 2008;57:268278.
  2. Gines P , Schrier RW. Renal failure in cirrhosis. N Engl J Med. 2009;361:12791290.
  3. Lisman T , Caldwell SH , Porte RJ , et al. Hemostasis and thrombosis in patients with liver disease: The ups and downs. J Hepatology. 2010;53(2):362371.
  4. Malik SM , Ahmad J. Preoperative risk assessment for patients with liver disease. Med Clin North Am. 2009;93:917929.

Additional Reading

See Also (Topic, Algorithm, Electronic Media Element)

Codes

ICD9
ICD10

Clinical Pearls

Author(s)

Phoebe Lee , MD

andrea Vanucci , MD, DEAA