Occupational Exposure to HIV in an Urban University Hospital Setting

Area of Science:

• Occupational Health
• Infectious Disease Epidemiology
• Hospital Infection Control

Background:

• Potential transmission of human immunodeficiency virus (HIV) in healthcare settings necessitates robust occupational safety programs.
• Healthcare workers (HCWs) face risks of exposure to bloodborne pathogens during patient care.

Purpose of the Study:

• To assess the incidence and characteristics of occupational exposures to blood and body fluids among HCWs.
• To evaluate the effectiveness of an occupational exposure assessment program in managing potential HIV exposures.
• To identify risk factors and common scenarios leading to HCW exposures.

Main Methods:

• Establishment of an occupational exposure assessment program at a university hospital.
• Collection of data on reported exposures, including service, location, HCW role, injury type, and cause.
• Analysis of source patient serostatus for HIV, hepatitis B, and hepatitis C.
• Documentation of zidovudine prophylaxis recommendations and HCW follow-up for seroconversion.

Main Results:

• 322 potential exposures reported in the first year, most frequent in surgical services and patient rooms.
• Nurses (53%) and physicians (25%) were most frequently exposed, with 78% reporting percutaneous injuries.
• Human error (54%) and breaches in universal precautions contributed to exposures; source patient pathogen positivity varied (HIV 11%, HBV 3%, HCV 9%).
• No HIV seroconversions were documented in HCWs who completed follow-up.
• Medical students on surgical rotations experienced high exposure rates (two-thirds), with injuries often caused by other staff.

Conclusions:

• Institutional programs for managing HCW occupational exposures to HIV are essential.
• These programs provide critical support to HCWs and medical students.
• Such programs serve as a vital tool for monitoring and implementing infection control policies and educational initiatives.