Blood culture isolates at Green Lane Hospital, 1972-1982.

Area of Science:

• Medical Microbiology
• Infectious Diseases
• Hospital Epidemiology

Background:

• Bacteraemia, a bloodstream infection, poses significant clinical challenges.
• Monitoring infection trends is crucial for public health and hospital management.
• The period 1972-1982 saw changes in healthcare practices and microbial resistance.

Purpose of the Study:

• To analyze the temporal trends of bacteraemic patients identified via positive blood cultures.
• To investigate the changes in the types of microorganisms causing bacteraemia.
• To examine the antibiotic sensitivity patterns of identified pathogens.

Main Methods:

• Retrospective analysis of blood culture data from Green Lane Hospital.
• Comparison of patient population and bacteraemia incidence over a decade (1972-1982).
• Categorization of bacterial isolates by Gram stain and assessment of antibiotic susceptibility.

Main Results:

• A 215% increase in identified bacteraemic patients was observed between 1972 and 1982.
• The overall patient population increased by 22% during the same period.
• A disproportionate rise in gram-positive organisms as causative agents of bacteraemia was noted.

Conclusions:

• Significant increase in bacteraemia incidence, far exceeding patient population growth.
• Shift in the microbial landscape of bacteraemia towards gram-positive pathogens.
• Need for ongoing surveillance and updated antibiotic stewardship protocols.