Procedure-Colectomy

Colon Resection (Colectomy)

Topic

Content

Procedure definition

A colon resection (colectomy) removes a portion of the large intestine. The two healthy ends are usually reconnected (anastomosis) so stool continues to pass normally. Depending on the condition, it may involve the right, left, or sigmoid colon. In some cases, a temporary colostomy bag is needed while healing occurs.

Surgery can be done laparoscopically or open. Minimally invasive methods offer smaller incisions, less pain, and faster recovery, but open surgery may be required for extensive disease or emergencies.

The operation generally takes 2–4 hours. Enhanced Recovery After Surgery (ERAS) programs—focused on early movement and early feeding—have greatly improved outcomes.

Why it’s done

Common reasons for colon resection include:
• Colon cancer.
• Diverticulitis—especially recurrent or complicated cases with abscess or fistula.
• Inflammatory bowel disease (IBD): ulcerative colitis or Crohn’s disease with strictures or bleeding.
• Ischemic colitis (loss of blood flow).
• Trauma or congenital defects.

Removing the diseased segment prevents further complications like bleeding, obstruction, or perforation. For colon cancer, surgery also removes nearby lymph nodes for accurate staging and cure.

Risks & complications

Overall complication rate: 20–35%, depending on disease severity.
Key risks:
• Anastomotic leak: 3–8%.
• Infection (SSI): 5–15%.
• Prolonged ileus: 10–20%.
• Bleeding: 1–4%.
• VTE: 1–3%.
• Reoperation: 2–5%.
• Mortality: 1–3% in elective, higher (5–10%) in emergencies.

Enhanced recovery protocols—minimizing narcotics, using regional anesthesia, and encouraging early feeding—cut complications significantly.

Recovery

Hospital stay: 3–5 days with ERAS; 7–10 days for open or complicated cases.

Diet: Clear liquids soon after surgery; gradual progression to soft foods.
Activity: Walking within 24 hours speeds bowel recovery. Desk work: 2–3 weeks; heavy lifting: 4–6 weeks.
Pain & wound care: Controlled with oral medication and non-narcotic regimens. Keep incisions clean and watch for fever or wound redness.
Bowel changes: Stools may be loose or frequent at first, normalizing over weeks.
Follow-up: Cancer patients require ongoing colonoscopy and oncology review.

Surgeon types

Colorectal Surgeons or General Surgeons with colorectal specialization. Complex IBD or recurrent disease is best handled in high-volume colorectal centers.

Sources

1. American Society of Colon & Rectal Surgeons (ASCRS): “Colectomy for Benign and Malignant Disease.”
2. SAGES/ASCRS ERAS Guidelines (2019): Leak rate 3–8%.
3. JAMA Surgery (2021): Minimally invasive colectomy lowers morbidity vs. open.
4. NIH MedlinePlus: “Colectomy.”
5. Annals of Surgery (2020): Enhanced recovery outcomes.