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Surgical setup · General

Bowel Resection (Colectomy/Hemicolectomy)

This procedure involves the surgical excision of a diseased segment of the large intestine, followed by the re-anastomosis of the remaining healthy bowel ends. The anatomical goal is the removal of compromised colonic tissue while restoring intestinal continuity.

Official Updated Mar 12, 2026 29 instruments 2 photos

Surgical instruments

29 on this table — tap a photo to zoom, the name for its full card.

The case

A bowel resection surgery is a procedure where a part of the small intestine is removed and the remaining parts are reconnected. This is done to treat conditions such as cancer, Crohn's disease, and diverticulitis, among others. The surgery is performed under general anesthesia and requires specialized instruments and a skilled surgical team to ensure its success.

Spark notes

The 30-second rundown — scan this outside the room.

  1. Make incision with 10 blade to access small bowel.
  2. Cut and dissect mesentery while maintaining hemostasis.
  3. Identify and remove affected small bowel using TA or GIA stapler.
  4. Hand off resected piece as specimen.
  5. Closure begins in layers: peritoneum, fascia, skin.
  6. Scar after Hemicolectomy surgery

Walkthrough

What the surgeon does — and what to have in your hand before they ask.

  1. Incision and Mesentery Dissection

    The first step in a bowel resection surgery is making an incision to gain access to the small bowel. A 10 blade is typically used for this purpose. Once the incision is made, the mesentery is cut into and dissected. It is important to maintain hemostasis throughout this process to prevent excessive bleeding.

  2. Identification and Removal of Affected Small Bowel

    After the mesentery is dissected, the affected part of the small bowel is identified and removed. This is typically done using either a TA or GIA stapler to connect the two ends of small bowel back together. The resected piece of small bowel should be handed off as a specimen for further analysis.

  3. Closure

    Once the affected section of small bowel has been removed, closure begins in layers. The first layer of closure is typically the peritoneum, which is closed using a running absorbable suture. Next, the fascia is closed with interrupted non-absorbable sutures. Finally, the skin is closed using either a running subcuticular suture or staples.

    Tips and tricks

    Have long instrument trays available, as well as a Balfour and Bookwalter retractor. Always have different size clips easily accessible. The resected part of the bowel being removed should be kept separate in order to avoid contaminating the rest of the sterile setup. Any instruments that become contaminated with bowel contents should also be taken off of the sterile field. A separate sterile field may be requested for the end of the case for closing, containing extra gowns, gloves, and a minor procedure tray.

From the field

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