A new option for colorectal patients

TEM, a procedure called transanal endoscopic microsurgery is a minimally-invasive procedure in colorectal cancer care that improves recovery and outcomes. Dr. Gary D. Dunn, MD who joined the faculty in December 2009 brings this relatively new procedure to Oklahoma.

TEM uses instruments that are specially designed so the procedure can be performed through the anus and in the rectum. An operating proctoscope (a 2 inch wide tube) is placed through the anus and positioned over the lesion. The rectum is filled with carbon dioxide gas, so there is room to work. A special microscope is used to look at the area directly and with a video camera. Long instruments are then used to grasp, cut, and suture. As a result, there is less pain, and recovery time is much faster.