title: Multifunctional use of an operating theatre: is floor drainage posing an increased risk of infection?
abstract: BACKGROUND
  For transurethral urologic surgery floor drainage is necessary for disposal of large amounts of fluid; for skin incision surgery floor drainage is unnecessary. The presence of floor drainage in an operating theatre may have a negative impact on the surgical site infection (SSI) rate after skin incision surgery due to aerosol contamination. We examined whether multifunctional use of an operating theatre would increase the SSI rate after skin incision surgery.
  
  
  METHODS
  Patients undergoing skin incision surgery on the kidney or prostate were prospectively divided into two groups with regard to operating theatre equipment. 272 patients were operated on in a theatre with floor drainage and 755 patients were operated on in a theatre without floor drainage. SSIs were categorized using the CDC classification and SSI rates in the two different theatres were determined.
  
  
  RESULTS
  No statistically significant difference (p = 0.86) in SSI rates after kidney and prostate surgery was found for operations in theatres with (2.6%) and without floor drainage (2.8%).
  
  
  CONCLUSIONS
  Multifunctional use of an operating theatre with floor drainage for transurethral and skin incision surgery does not increase SSI rates. Thus, multifunctional use of theatres with floor drainage might lead to a gain in flexibility in the use of operating theatre capacity.
authors.affiliation: Department of Urology, University Hospital Frankfurt, Frankfurt, Germany.
authors.forename: Hendrik
authors.initials: H
authors.lastname: Borgmann
authors.forename: Florian
authors.initials: F
authors.lastname: Wagenlehner
authors.forename: Stefan
authors.initials: S
authors.lastname: Borgmann
authors.forename: Walter
authors.initials: W
authors.lastname: Thon
mesh_terms: D000368:Aged; D001424:Bacterial Infections / Q000517:prevention & control; D003428:Cross Infection / Q000517:prevention & control; D004783:Environmental Microbiology; D004867:Equipment Design; D005260:Female; D005430:Floors and Floorcoverings; D006801:Humans; D007668:Kidney / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009873:Operating Rooms / Q000706:statistics & numerical data*; D011467:Prostate / Q000601:surgery; D012867:Skin / Q000473:pathology; D013530:Surgical Wound Infection / Q000382:microbiology / Q000517:prevention & control*; D013520:Urologic Surgical Procedures / Q000009:adverse effects*