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Microbial sealants do not decrease surgical site infection for clean-contaminated colorectal procedures.

M Doorly1, J Choi, A Floyd

  • 1Keck School of Medicine of USC, 1441 Eastlake Ave, Suite 7418, Los Angeles, CA, 90033, USA, mikedoorly@gmail.com.

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Microbial sealant did not reduce surgical site infections (SSI) in clean-contaminated colorectal surgery. Standardized perioperative care limited the sealant's benefit, though laparoscopy showed a reduced SSI risk.

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Area of Science:

  • Colorectal Surgery
  • Infectious Disease
  • Surgical Innovation

Background:

  • Surgical site infections (SSI) are a significant concern in colorectal surgery, increasing morbidity and healthcare costs.
  • Microbial sealants (MS) are emerging wound barriers, with proven efficacy in clean (class 1) procedures.
  • This study investigated MS efficacy in clean-contaminated (class 2) colorectal procedures.

Purpose of the Study:

  • To evaluate the effectiveness of microbial sealant in reducing SSI rates in class 2 colorectal surgery.
  • To compare SSI incidence between patients receiving microbial sealant and a control group.
  • To explore the impact of surgical approach (open vs. laparoscopy) and patient factors on SSI rates.

Main Methods:

  • A prospective, randomized, single-institution study involving 100 patients undergoing colorectal surgery.
  • Patients were randomized to receive either microbial sealant (InteguSeal©) or no sealant.
  • Standardized perioperative care, including bowel preparation, skin antisepsis, and glycemic control, was applied to all participants.

Main Results:

  • The overall SSI incidence was 14% in the microbial sealant group and 10% in the control group (p=0.545), showing no significant difference.
  • SSI rates did not differ significantly between groups in open or laparoscopic subgroups.
  • Laparoscopy was associated with a 16% absolute risk reduction in SSI, independent of sealant use. Patient factors like age, BMI, and diabetes were correlated with SSI.

Conclusions:

  • Microbial sealant did not demonstrate a significant benefit in reducing SSI for class 2 colorectal procedures when standardized perioperative care was implemented.
  • The study confirmed the benefit of laparoscopy in reducing SSI risk.
  • Further research may be needed to identify specific patient populations or surgical conditions where microbial sealants could offer a benefit.