Tuberculosis in HIV seropositive individuals--a retrospective analysis

Area of Science:

• Infectious Diseases
• Public Health
• Immunology

Background:

• HIV infection significantly increases susceptibility to Mycobacterium tuberculosis.
• Tuberculosis remains a major opportunistic infection in individuals with Human Immunodeficiency Virus (HIV).

Purpose of the Study:

• To determine the prevalence and characteristics of Mycobacterium tuberculosis infection in HIV-positive individuals.
• To analyze the clinical and radiological presentation of tuberculosis in this immunocompromised population.

Main Methods:

• Retrospective analysis of culture-positive Mycobacterium tuberculosis cases in HIV-positive individuals over a 5-year period.
• Data collection included patient demographics, diagnosis, specimen types, and radiological findings.

Main Results:

• Prevalence of culture-proven tuberculosis was 1.2% in the studied HIV-positive population.
• Tuberculosis diagnosis was strongly associated with concomitant or subsequent Acquired Immunodeficiency Syndrome (AIDS) diagnosis.
• Pulmonary tuberculosis accounted for 61% of cases, with segmental consolidation being the most common radiological finding (57%).
• Initial stains for Mycobacterium tuberculosis were positive in only 55% of specimens, with a mean culture positivity of 4 weeks.

Conclusions:

• Tuberculosis is significantly prevalent in HIV-positive individuals and closely linked to AIDS.
• Radiological findings like segmental consolidation are common in HIV-associated TB.
• Delayed microbiological confirmation underscores the critical role of clinical suspicion for early diagnosis and management.