Bakteriekontamination på övertäckt operationsdukning - en pilotstudie med mätning av bakterier på operationsdukningar i tomma fullt ventilerade operationsrum efter 15 och 24 timmar
Sammanfattning
Hospital-acquired surgical infection causes suffering and prolonged hospitalization for the individual patient and contributes to costs for
society. Patient safety is at focus for the perioperative nurse preparing sterile material for surgery. The responsibility for maintaining asepsis at
surgery rests on the perioperative nurse. There is a lack of knowledge about the extent to which a prepared sterile surgical table setting with
time is contaminated by bacteria, and the effect of sterile cover.
Aim: The aim of the study was to describe bacterial contamination on sterile operating table settings and the effect of covering for 15 or
24 hours.
Method: Experiments were conducted to measure microorganism sediment on agar plates placed on operating table settings in fully ventilated
operating rooms. Six settings were left uncovered for 12 hours (control), six with a sterile cover for 15 hours and six for 24 hours.
Results: Two of the six covered settings were contaminated after 15 hours and four of the six covered settings were contaminated after
24 hours. All six uncovered settings were contaminated after 12 hours. A mean value of 22 bacterial colonies per m² were found on those left
for 15 hours, 65 per m² on those left for 24 hours and 170 per m² on those left for 12 hours. Coagulase-negative staphylococci and micrococci
were found.
Conclusion: The results support covering operating table settings to reduce bacterial contamination and that contamination is time-dependent.
Further experiments are required for evidence development for safe prepared operating table settings.