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DP47: THE BLUE TOWEL: A PROCEDURAL INFECTION BARRIER THAT IS NOT WHAT IT SEEMS
Helena Krogman; Anirudh Venkatesh; Mia Corigliano; Timothy Feldheim, MD; Amir Jafari, MD; Nikolaus Gravenstein, MD; Abigail Schirmer, MD; Bryan J Stevens, MD
University of Florida
The use of sterile "blue towels" in surgery dates back to the late 19th century, introduced as part of antiseptic practices to reduce surgical site infections. These towels are widely utilized in modern medicine for draping sterile fields, wiping equipment, and handling non-sterile objects. However, despite their intended role in maintaining sterility, the effectiveness of blue towels as a true barrier against contamination remains uncertain. This study examines the structural properties of blue towels, revealing their porous nature and low thread count, which may compromise their ability to prevent microbial translocation.To conduct this proof-of-concept study, we began by preparing a gel-filled plastic mold that was thoroughly sterilized to ensure it was free of fluorescent GloGerm particles, establishing a contamination-free baseline. We then applied GloGerm to simulate potential contamination. A blue drape was placed over the mold to replicate sterile barriers used in clinical settings. A gloved hand was used to touch the blue drape for 10 seconds, simulating potential breaches in sterility. At each stage, results were documented with photographs to visualize contamination spread. Additionally, we tested three draping variables: a sterile blue drape, a normal blue drape, and an adhesive plastic drape. Understanding the limitations of blue towels is particularly relevant given the persistent incidence of surgical site infections, especially in elective procedures such as caudal epidural injections. These infections contribute to increased healthcare costs, prolonged hospitalizations, and negative impacts on patient well-being. This study underscores the need for alternative materials or revised protocols to enhance sterility, ultimately reducing postoperative infection rates and improving patient outcomes.