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Difficulty: HardPharmacologic Interventions

A 56-year-old man is brought to the emergency department by ambulance after vomiting a large amount of bright red blood. He has a history of alcohol use disorder and compensated cirrhosis. On arrival, he is lethargic but localizes to pain and maintains his airway. Blood pressure is 88/55 mm Hg, and pulse is 118/min. Physical examination reveals scleral icterus, palmar erythema, and a distended abdomen with shifting dullness. Two large-bore peripheral intravenous lines are placed, and fluid resuscitation with isotonic crystalloid is initiated. Laboratory studies show:

Laboratory ParameterResult
Hemoglobin8.2 g/dL
Platelet count75,000/mm³
Prothrombin time18 seconds
INR1.8

Which of the following pharmacologic interventions are most appropriate for this patient at this time? (Select all that apply)

  1. Intravenous octreotideAnswer
  2. Intravenous ceftriaxoneAnswer
  3. C
    Intravenous propranolol
  4. D
    Intravenous fresh frozen plasma
  5. E
    Enteral lactulose

Answer

The most appropriate interventions are intravenous octreotide and intravenous ceftriaxone.
In the setting of suspected acute variceal hemorrhage, initial pharmacologic therapy focuses on reducing portal venous pressure and preventing severe infectious complications. Intravenous octreotide, a somatostatin analog, inhibits the release of vasodilator hormones (such as glucagon), leading to splanchnic vasoconstriction and a subsequent decrease in portal inflow and variceal pressure. Concurrently, bacterial infections (particularly spontaneous bacterial peritonitis) are a major trigger and complication of variceal bleeding in cirrhosis. The administration of prophylactic antibiotics, typically intravenous ceftriaxone, has been definitively shown to reduce both rebleeding rates and overall mortality, making it a mandatory initial intervention.

Step-by-Step Solution

1
Analyze the patient's clinical presentation and vital signs.
The patient has signs of hemorrhagic shock (hypotension, tachycardia) secondary to acute upper gastrointestinal bleeding, highly suspicious for variceal hemorrhage given his history of cirrhosis and stigmata of chronic liver disease.
Establishing the severity and likely etiology of the bleeding dictates the immediate resuscitative and pharmacologic priorities.
2
Evaluate the indication for portal pressure reduction and infection prophylaxis.
Octreotide must be initiated to reduce splanchnic blood flow. Ceftriaxone must be initiated because cirrhotic patients with GI bleeding are at high risk for spontaneous bacterial peritonitis and bacteremia.
These two interventions are the cornerstone of initial medical management for suspected variceal bleeding and have been shown to reduce mortality.
3
Assess standard treatments that might be contraindicated in this specific acute setting.
Propranolol, fresh frozen plasma (FFP), and enteral lactulose are rejected.
Propranolol causes shock in acute bleeding; FFP increases portal pressure without correcting the complex cirrhotic coagulopathy; and enteral lactulose poses an aspiration risk during active hematemesis.

Key Concept

The initial pharmacologic management of acute variceal bleeding in cirrhosis requires splanchnic vasoconstrictors (e.g., octreotide) to decrease portal pressure and prophylactic antibiotics (e.g., ceftriaxone) to prevent mortality-increasing infections.
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Topics

Pharmacologic Interventions

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