TransAnal Minimally Invasive Surgery (TAMIS)
If rectal cancer is detected early, a new procedure called a transanal local excision can be performed through the anus and without an incision to the abdomen. It is an option for patients with small early-stage rectal cancer that is near the anus opening but has not spread to the anus or sphincter. This procedure is minimally invasive, requires less operative time, and offers faster recovery.
TransAnal Endoscopic Microsurgery (TEM)
TEM is an advanced, minimally invasive procedure to remove noncancerous tumors and early-stage rectal cancers. It does not require any surgical incisions. It is performed through the rectum with specially designed microsurgical instruments that can remove lesions high inside the rectum. In the past, major abdominal surgery was needed to reach the lesions. Not only do our surgeons have longer reach and better visibility, but there is also less bleeding, less risk of infection or complications, less risk of bowel obstruction after surgery, and faster recovery.
The bowel must be completely cleansed prior to surgery. This may include a combination of enemas or laxatives and maintaining a liquid diet for several days prior. General anesthesia is needed.