Antibiotic Prophylaxis in Lower GI Bleeding with Cirrhosis

Rationale for Antibiotic Prophylaxis

Bacterial infections occur in 25-65% of cirrhotic patients with gastrointestinal bleeding, with higher incidence in those with advanced cirrhosis or severe hemorrhage 1
Infections are associated with increased risk of failure to control bleeding, rebleeding, and higher hospital mortality 1
Antibiotic prophylaxis has been shown to decrease the incidence of severe infections (SBP and septicemia) 2
Antibiotic prophylaxis decreases rebleeding rates in cirrhotic patients with gastrointestinal bleeding 1

For patients with advanced cirrhosis, the American Association for the Study of Liver Diseases recommends intravenous ceftriaxone 1g daily for 7 days as the first choice 3, 1
Ceftriaxone is more effective than oral quinolones in preventing infections in patients with advanced cirrhosis 3
For patients with less severe liver disease, the American Association for the Study of Liver Diseases recommends oral norfloxacin 400 mg twice daily for 7 days as the first choice 1, 4

The American Association for the Study of Liver Diseases recommends starting antibiotics as soon as possible after diagnosis of GI bleeding, even before endoscopy 1
Consider local bacterial resistance patterns when selecting antibiotics, as recommended by the American Association for the Study of Liver Diseases 4
Antibiotic prophylaxis should be considered standard practice in all patients with cirrhosis and acute gastrointestinal bleeding, according to the American Association for the Study of Liver Diseases 1

Delaying antibiotic administration increases risk of infection and mortality in cirrhotic patients with gastrointestinal bleeding 1
Not accounting for local resistance patterns may lead to treatment failure in cirrhotic patients with gastrointestinal bleeding 1
Overuse of antibiotics in non-high-risk patients may contribute to bacterial resistance, as noted by the European Association for the Study of the Liver 5