Inclusion Criteria:

- Surgical resection for a colorectal, pancreatic, or peritoneal surface malignancy

- The scheduled procedure will be performed via midline laparotomy

- The planned procedure is a clean-contaminated (class II) case (includes gastric,
small bowel, and colorectal resections, as well as bile or pancreatic duct
transections)

- Ability to understand and the willingness to sign a written informed consent document
(either directly or via a legally authorized representative)

Exclusion Criteria:

- Emergent cases will not be included in the study

- Pregnant patients will not be included in the study as pregnancy is a relative
contraindication for these types of surgical procedures

- Clean (class I), contaminated (class III) and dirty (class IV) procedures will
likewise be excluded

- Patients on chronic immunosuppressive medications, including steroids, within the
past three months

- Patients with a history of skin allergy to iodine or adhesive drapes

- The planned procedure involves foreign material (such as mesh or subcutaneous drains)
being left in the subcutaneous space at the time of surgery (for example, a ventral
hernia repair); surgical drains that are placed to drain an intraabdominal space and
exit the abdominal wall remote from the incision are allowed in the study