Note Nov 11, 2024 (3) 2
Page 1: Introduction
Therapeutics of Cirrhosis
Soon Hye Yang, MS, PharmD, BCPS
Assistant Professor, College of Pharmacy, Department of Clinical & Administrative Sciences, Larkin University
Page 2: Objectives
Discuss treatment therapies for cirrhosis and common complications:
Portal hypertension and variceal bleeding
Ascites and spontaneous bacterial peritonitis
Hepatic encephalopathy
Hepatorenal syndrome
Coagulopathy
Alcoholic liver disease
Given a patient case, recommend appropriate treatments for complications of cirrhosis.
Page 3: Primary Prophylaxis: β-adrenergic Blockade
Mainstay of primary prophylaxis includes nonselective β-adrenergic blocking agents:
Examples: Propranolol, Nadolol, Carvedilol
Mechanisms of action:
Decrease cardiac output (β1 blockade)
Decrease splanchnic blood flow (β2 blockade)
Indications:
Patients with small varices, no history of bleeding, but at increased risk
(Child-Pugh Class B or C, red wall marks on varices)
Lifelong treatment with weekly titration to achieve either:
Heart rate of 55-60 bpm or
25% reduction from baseline heart rate.
Page 4: Management of Moderate/Large Varices
Recommended therapy: for portal hypertension
Propranolol: 20-40 mg orally twice daily
Maximal daily dose 320 mg.
Nadolol: 20-40 mg orally once daily
Carvedilol: Start with 6.25 mg once daily, max 12.5 mg/day.
Endoscopic variceal ligation (EVL): every 2-8 weeks until eradication.
Therapeutic goals:
Maintain systolic blood pressure >90 mm Hg.
HR 55-60
Page 5: Endoscopic Variceal Ligation (EVL)
EVL involves placing rubber bands around varices to obliterate them.
Does NOT improve survival
EVL is intolerant to BB or contraindication:
Examples of contraindications:
bradycardia
heart block
uncompensated heart failure
severe asthma
Diabetes Type 1
Pregnancy 2nd/3rd
Peripheral Vascular Disease
Page 6: Treatment of Acute Variceal Hemorrhage
Initial management:
Fluid resuscitation, maintain hemoglobin ~8 g/dL.
Combination pharmacological therapy:
Endoscopic variceal band ligation (EGD within 12 hours).
Administer erythromycin IV before endoscopy.
Use vasoactive drugs (e.g., Octreotide).
Prophylactic antibiotics :
Ceftriaxone,
Ciprofloxacin
Bactrim
Fluid Resuscitation and Hemodynamic Stabilization
• MaintainHbconcentrationatabout8g/dL
•Administration of fresh frozen plasma or platelets may be considered for patients with considerable coagulopathy
Page 7: Octreotide in Acute Variceal Hemorrhage
Mechanism:
Selective vasoconstriction of mesenteric circulation, reducing splanchnic blood flow.
Used in combination with endoscopic procedure
Dosing:
Octreotide 50 mcg IV bolus, followed by 50 mcg/h for 3-5 days.
Side effects include hyperglycemia and abdominal cramping.
Page 8: Secondary Prophylaxis (Prevention)
For patients with a history of variceal bleeding:
Endoscopic band ligation & nonselective β-blocker (e.g., Propranolol, Nadolol).
Secondary prophylaxis should start post vasoactive drug therapy ending (ASAP).
Associated with reduced incidence of variceal rebleeding.
Page 9: Treatments for Prevention of Recurrent Esophageal Variceal Hemorrhage
Recommended dosages for therapies:
Propranolol and Nadolol with similar follow-up considerations as previously outlined.
EVL: every 1-4 weeks until eradication of varices.
Combination platelet therapy is recommended.
Page 10: Management of Ascites
Objectives of ascites management include:
Control ascites
Relieve symptoms
Prevent life-threatening complications
(e.g., SPB, hepatorenal syndrome).
Page 11: Goals of Therapy for Ascites
Calculate Serum-Ascites Albumin Gradient (SAAG): SAAG = serum albumin – ascitic fluid albumin.
If SAAG ≥ 1.1 g/dL
Ascites is likely secondary to portal hypertension responding to treatment.
If SAAG < 1.1 g/dL,
treatment is less likely effective.
Page 12: Treatment of Ascites
Key elements of treatment include:
Alcohol abstinence
Sodium restriction (< 2g/day)
Fluid restriction if serum sodium <120-125 mmol/L.
Diuretics:
Spironolactone (inhibits aldosterone) with specific dosing strategies.
In cirrhotic patients, antagonize the excessive reabsorption of sodium in the kidney from increased aldosterone
Spironolactone PK: metabolized to an active metabolite, canrenone which is also metabolized and has a half-life of 13-26 hours. Need to titrate spironolactone slowly every 5-7 days.
Page 13: Spironolactone Dosing for Ascites
Based on urine sodium:pottassium ratio:
Start at 200 mg/day (high aldosterone) if <1.0.
Start at 50 mg/day (low aldosterone) if >1.0.
Titration and combination therapy with furosemide are critical.
Titrate using 100 mg : 40 mg ratio to max doses of 400 mg/160
prevent hyper or hypokalemia, achieve rapid natiruertic effect