Carbon dioxide gas is infused through one of the trochars into the patient's abdomen. This pushes the anterior abdominal wall upward, and makes room for the surgeon to work. A camera, inserted through one trochar, is linked to a video monitor. This allows the surgeon to view the abdominal contents.
Update Date 7/28/2015
Updated by: Debra G. Wechter, MD, FACS, general surgery practice specializing in breast cancer, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.