Colorectal Surgery

Robotic surgery has a long history at The George Washington University Hospital. GW Hospital was the first in DC to have the da Vinci robot and to use it for prostate cancer surgery. In 2009, GW became the first in the region to use the da Vinci system for robotic colon and rectal surgery.  During a robotic colectomy, surgeons remove cancerous portions of the colon and rectum, as well as benign tumors and polyps. A robot-assisted approach provides surgeons with the tools to more easily connect the two ends of the colon after the cancer has been removed. The procedure can be completed with a few tiny incisions, rather than the one long incision used in traditional open colon surgery.

Robotic surgery can allow surgeons to perform complex rectal cancer surgery which had been extremely challenging to do in a minimally invasive manner. The robot provides the surgeon with improved visualization of the surgical site through 3D magnification, enhanced dexterity for manipulation and dissection of tissue, and greater precision.

The robotic procedure allows surgeons to finely dissect cancers of the rectum while possibly reducing nerve injury. A recent study has shown that surgeries using the robot are less likely to require conversion to an open procedure than colorectal procedures performed laparoscopically.

The benefits to the patient may include:

  • Reduced pain and trauma to the body
  • Less blood loss
  • Less postoperative pain
  • Shorter hospital stay
  • Faster recovery and return to work
  • Less scarring
  • A more precise surgery

Download PDF - Dr. Obias

Download PDF - Dr. Agarwal

Watch Dr. Vincent Obias, Director of the Division of Colon and Rectal Surgery talk about how robotics have improved surgery for colon cancer.

Physician Profiles

Samir Agarwal, MD

Samir Agarwal, MD, is a colon and rectal surgeon and is an assistant professor of Surgery at The George Washington University School of Medicine & Health Sciences. He completed his...

Vincent Obias, MD

Vincent Obias, MD, is Director of the Division of Colon and Rectal Surgery, Department of Surgery at The George Washington University School of Medicine.

Dr. Obias graduated from James...