Polymicrobial ventriculitis and evaluation of an outbreak in a surgical intensive care unit due to inadequate...

Area of Science:

• Infectious Diseases
• Hospital Epidemiology
• Microbiology

Background:

• Nosocomial surgical infections pose significant risks in healthcare settings.
• Polymicrobial ventriculitis and Serratia marcescens mediastinitis outbreaks were reported.

Observation:

• An outbreak of Serratia marcescens mediastinitis occurred in a cardiovascular surgery intensive care unit.
• A preceding case of polymicrobial ventriculitis was noted in the neurosurgery department.
• These events were suspected to stem from contaminated surgical sites due to inadequate sterilization.

Findings:

• An epidemiological survey identified inadequately decontaminated theatre linen as the root cause.
• Microbiological analysis confirmed the link between contaminated linen and the outbreaks.
• The central sterilization unit was implicated in the failure of decontamination processes.

Implications:

• Highlights the critical importance of stringent infection control protocols in hospitals.
• Emphasizes the necessity of rigorous sterilization procedures for surgical instruments and linens.
• Underscores the role of a well-organized infection control team in preventing nosocomial infections.