Infectious diarrhea in patients with AIDS

Area of Science:

• Infectious Diseases
• Gastroenterology
• Immunology

Background:

• Opportunistic infections are prevalent in individuals with acquired immunodeficiency syndrome (AIDS).
• Gastrointestinal (GI) infections are a significant manifestation of AIDS, yet large-scale frequency studies are limited.
• Understanding the spectrum of GI pathogens in AIDS is crucial for effective management.

Purpose of the Study:

• To determine the frequency and causative organisms of infectious diarrhea in a cohort of 100 patients with AIDS.
• To identify risk factors associated with infectious diarrhea in this population.
• To assess the occurrence of bacteremia and multiple concurrent infections.

Main Methods:

• Retrospective review of medical records of 100 patients diagnosed with AIDS.
• Analysis of patient demographics, risk factors, and identified infectious agents causing diarrhea.
• Microbiological investigation including stool analysis and blood cultures.

Main Results:

• Diarrhea occurred in 80% of homosexual patients and 58% of heterosexual patients with a history of parenteral drug use.
• No infectious etiology was identified in one-third of cases.
• Mycobacterium avium intracellulare (MAI) was the most common pathogen, followed by cytomegalovirus, cryptosporidium, Salmonella spp., and herpes virus.
• Bacteremia was present in 43% of patients with infectious diarrhea, frequently caused by MAI.
• Concurrent infections were found in 22% of patients.

Conclusions:

• Infectious diarrhea is a common complication in AIDS patients, with diverse causative agents.
• MAI and cytomegalovirus are leading infectious causes of diarrhea in this cohort.
• Effective treatment of diarrheal syndrome may require eradication of all identified pathogens, including concurrent infections.