Myomectomy Health Article

Definition

Myomectomy is the removal of fibroids (non-cancerous tumors) from the wall of the uterus. Myomectomy is the preferred treatment for symptomatic fibroids in women who want to keep their uterus. Larger fibroids must be removed with an abdominal incision, but small fibroids can be taken out by laparoscopy or hysteroscopy.

Purpose

A myomectomy can remove uterine fibroids that are causing such symptoms as abnormal bleeding or pain. It is an alternative to surgical removal of the whole uterus (hysterectomy). The procedure can relieve fibroid-induced menstrual symptoms that have not responded to medication. Myomectomy also may be an effective treatment for infertility caused by the presence of fibroids.

Demographics

Uterine fibroids are more common among African-American women than among women of other ethnicities.
Fibroids affect 20–40% of all women over the age of 35, and 50% of African-American women. A 2001 study by the National Institute of Environmental Health Sciences found that the incidence of fibroids among African-American women in their late 40s was as high as 80%, while approximately 70% of white women of that age were diagnosed as having fibroids. Women who are obese, are older, or started menstruating at an early age are also at an increased risk of developing uterine fibroids. Another study published in 2003 indicated that women with less education were more likely to have a hysterectomy performed to treat fibroids, instead of a less-invasive procedure such as myomectomy.

Description

Usually, fibroids are buried in the outer wall of the uterus, and abdominal surgery is required. If they are on the inner wall of the uterus, uterine fibroids can be removed using hysteroscopy. If they are on a stalk (pedunculated) on the outer surface of the uterus, laparoscopy can be performed.

Removing fibroids through abdominal surgery is a more difficult and slightly more risky operation than a hysterectomy. This is because the uterus bleeds from the sites where the fibroids were removed, and it may be difficult or impossible to stop the bleeding. This surgery is usually performed under general anesthesia, although some patients may be given a spinal or epidural anesthesia.

The incision may be horizontal (the "bikini" incision) or a vertical incision from the navel downward. After separating the muscle layers underneath the skin, the surgeon makes an opening in the abdominal wall. Next, the surgeon makes an incision over each fibroid, grasping and pulling out each growth.

Every opening in the uterine wall is then stitched with sutures. The uterus must be meticulously repaired in order to eliminate potential sites of bleeding or infection. The surgeon then sutures the abdominal wall and muscle layers above it with absorbable stitches, and closes the skin with clips or non-absorbable stitches.

When appropriate, a laparoscopic myomectomy may be performed. In this procedure, the surgeon removes fibroids with the help of a viewing tube (laparoscope) inserted into the pelvic cavity through an incision in the navel. The fibroids are removed through a tiny incision under the navel that is much smaller than the 4–5 in (10–13 cm) opening required for a standard myomectomy.

If the fibroids are small and located on the inner surface of the uterus, they can be removed with a thin, telescope-like device called a hysteroscope. The hysteroscope is inserted into the vagina through the cervix and into the uterus. This procedure does not require any abdominal incision, so hospitalization is shorter.