An anastomosis is a surgical connection between two structures. It usually means a connection that is created between tubular structures, such as blood vessels or loops of intestine.
For example, when part of an intestine is surgically removed, the two remaining ends are sewn or stapled together (anastomosed). The procedure is known as an intestinal anastomosis.
Examples of surgical anastomoses are:
- Arteriovenous fistula (an opening created between an artery and vein) for dialysis
- Colostomy (an opening created between the bowel and the abdomen)
- Intestinal, in which two ends of intestine are sewn together
- A connection between a graft and a blood vessel to create a bypass
Mahmoud NN, Bleier JIS, Aarons CB, Paulson EC, Shanmugan S, Fry RD. Colon and rectum. In: Townsend CM Jr., Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 20th ed. Philadelphia, PA: Elsevier; 2017:chap 51.
Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.