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Surgery commonly is used to treat perforations that occur during colonoscopy, but endoscopic treatments also are being explored. In this report, investigators in Switzerland adapted a vacuum technique used in surgical wound closure to assist in endoscopic closure of an iatrogenic perforation. The vacuum technique employs a foam dressing with an embedded catheter that is inserted into the wound cavity; the catheter applies negative pressure to the wound, resulting in enhanced formation of granulation tissue.
The patient was a 60-year-old woman who incurred a 2-cm perforation into the perirectal fat when retroflexion was performed at the end of a screening colonoscopy. The perforation was too large to close with clips. The foam dressing with t…