• Amy C Degnim, Tanya L Hoskin, Rushin D Brahmbhatt, Anne Warren-Peled, Margie Loprinzi, Emily S Pavey, Judy C Boughey, Tina J Hieken, Steven Jacobson, Valerie Lemaine, James W Jakub, Chetan Irwin, Robert D Foster, Hani Sbitany, Michel Saint-Cyr, Erin Duralde, Sheri Ramaker, Robin Chin, Monica Sieg, Melissa Wildeman, Jeffrey S Scow, Robin Patel, Karla Ballman, Larry M Baddour, and Laura J Esserman.
• Department of Surgery, Mayo Clinic, Rochester, MN, USA, degnim.amy@mayo.edu.
• Ann. Surg. Oncol. 2014 Oct 1; 21 (10): 3240-8.

BackgroundIn this 2-site randomized trial, we investigated the effect of antiseptic drain care on bacterial colonization of surgical drains and infection after immediate prosthetic breast reconstruction.MethodsWith IRB approval, we randomized patients undergoing bilateral mastectomy and reconstruction to drain antisepsis (treatment) for one side, with standard drain care (control) for the other. Antisepsis care included both: chlorhexidine disc dressing at drain exit site(s) and irrigation of drain bulbs twice daily with dilute sodium hypochlorite solution. Cultures were obtained from bulb fluid at 1 week and at drain removal, and from the subcutaneous drain tubing at removal. Positive cultures were defined as ≥1+ growth for fluid and >50 CFU for tubing.ResultsCultures of drain bulb fluid at 1 week (the primary endpoint) were positive in 9.9 % of treatment sides (10 of 101) versus 20.8 % (21 of 101) of control sides (p = 0.02). Drain tubing cultures were positive in 0 treated drains versus 6.2 % (6 of 97) of control drains (p = 0.03). Surgical site infection occurred within 30 days in 0 antisepsis sides versus 3.8 % (4 of 104) of control sides (p = 0.13), and within 1 year in three of 104 (2.9 %) of antisepsis sides versus 6 of 104 (5.8 %) of control sides (p = 0.45). Clinical infection occurred within 1 year in 9.7 % (6 of 62) of colonized sides (tubing or fluid) versus 1.5 % (2 of 136) of noncolonized sides (p = 0.03).ConclusionsSimple and inexpensive local antiseptic interventions with a chlorhexidine disc and hypochlorite solution reduce bacterial colonization of drains, and reduced drain colonization was associated with fewer infections.

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