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Richard E Johnson, MD
Location and Office HoursDartmouth-Hitchcock Specialty Medicine
Nashua, NH 03063
- Cheshire Medical Center
What are colon and rectal surgeons?
Healthwise answeredColon and rectal surgeons are medical doctors who specialize in surgery of the colon and rectum. Colon and rectal surgeons can diagnose and treat diseases such as colon cancer, inflammatory bowel diseases including colitis and regional enteritis (Crohn's disease) and hemorrhoids. They may also perform diagnostic procedures, such as sigmoidoscopy or colonoscopy. Colon and rectal surgeons can be board-certified through the Board of Colon and Rectal Surgery, which is recognized by the American Board of Medical Specialties.
What are the advantages of robotic surgery for the surgeon?
The advantages of robotic surgery for a surgeon include clearer interior views of the body tissues, better precision and fewer "technical difficulties" than with other types of surgery. Robotic surgery is a type of minimally invasive surgery in which doctors perform operations using a computer to direct precise and accurate movements of instruments attached to a robot.The robotic instruments cut down on the possibility of human error because they aren't subject to shakiness as human hands can be. In addition, robotic surgery does not require that a surgeon stand for hours at an operating table, so that may reduce the doctor's fatigue.
As with other types of minimally invasive surgery, in robotic surgery, doctors make several small incisions rather than creating one large opening as is done in traditional "open" surgery. In one small incision the surgeon inserts a long, thin tube with an attached light and tiny camera called an endoscope that can project a magnified image of the body area onto a screen for a close and clear view.
What is a mini-transplant?
Riverside Cancer Care Center answered
A "mini-transplant" (also called a non-myeloablative or reduced-intensity transplant) is a type of allogeneic transplant. This approach is being studied in clinical trials for the treatment of several types of cancer, including leukemia, lymphoma, multiple myeloma, and other cancers of the blood.
A mini-transplant uses lower, less toxic doses of chemotherapy and/or radiation to prepare the patient for an allogeneic transplant. The use of lower doses of anticancer drugs and radiation eliminates some, but not all, of the patient's bone marrow. It also reduces the number of cancer cells and suppresses the patient's immune system to prevent rejection of the transplant.
Unlike traditional BMT or PBSCT, cells from both the donor and the patient may exist in the patient's body for some time after a mini-transplant. Once the cells from the donor begin to engraft, they may cause the graft-versus-tumor (GVT) effect and work to destroy the cancer cells that were not eliminated by the anticancer drugs and/or radiation. To boost the GVT effect, the patient may be given an injection of the donor's white blood cells. This procedure is called a "donor lymphocyte infusion."
This answer is based on source information from the National Cancer Institute.
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