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Infectious complications of cirrhosis
1Gastroenterology Clinic, Naval Medical Center, 34800 Bob Wilson Drive, San Diego, CA 92134-3301, USA. osbrann@nmcsd.med.navy.mil
Abstract:
Infectious complications in cirrhotic patients can cause severe morbidity and mortality. Bacterial infections are estimated to cause up to 25% of deaths in cirrhotic patients. The most frequent are urinary tract infection, spontaneous bacterial peritonitis, respiratory tract infection, and bacteremia. It has been said that cirrhosis is the most common form of acquired immunodeficiency, exceeding even AIDS. The specific risk factors for infection in cirrhotic patients are low serum albumin, gastrointestinal bleeding, intensive care unit admission for any cause, and therapeutic endoscopy. Certain infectious agents are more virulent and more common in patients with liver disease. These include Vibrio, Campylobacter, Yersinia, Plesiomonas, Enterococcus, Aeromonas, Capnocytophaga, and Listeria species, as well as organisms from other species. Spontaneous bacterial peritonitis is a frequent, severe, life-threatening complication of patients with ascites. Current observations and recommendations regarding treatment and prophylaxis are reviewed. A brief synopsis of miscellaneous infections encountered in cirrhotic patients is also included.
Insights
Cirrhotic patients face high risks of severe bacterial infections, which are a leading cause of death. Understanding risk factors and specific pathogens is crucial for managing these infections in liver disease.
Area of Science:
- Hepatology
- Infectious Diseases
- Immunology
Background:
- Cirrhosis significantly impairs the immune system, making patients highly susceptible to infections.
- Bacterial infections contribute to a substantial portion of mortality in cirrhotic individuals.
- Key risk factors include low albumin, gastrointestinal bleeding, and intensive care unit stays.
Purpose of the Study:
- To review current understanding of infectious complications in cirrhotic patients.
- To highlight common and virulent infectious agents in this population.
- To discuss management strategies for spontaneous bacterial peritonitis and other infections.
Main Methods:
- Review of current observations and recommendations.
- Synopsis of miscellaneous infections in cirrhotic patients.
- Literature synthesis on risk factors and pathogens.
Main Results:
- Urinary tract infections, spontaneous bacterial peritonitis, respiratory infections, and bacteremia are most frequent.
- Specific pathogens like Vibrio, Campylobacter, and Listeria are more prevalent and virulent.
- Spontaneous bacterial peritonitis is a severe, life-threatening complication in patients with ascites.
Conclusions:
- Infectious complications are a major cause of morbidity and mortality in cirrhosis.
- Identifying risk factors and specific pathogens is essential for effective treatment and prophylaxis.
- Comprehensive management strategies are needed for diverse infections in cirrhotic patients.