Blood test to predict tubal damage

A recent study published in the journal Fertility and Sterilityindicates that a combination of inexpensive blood tests can predict the presence or absence of tubal damafe from chlamydia infection with fairly good accuracy.

Chlamydia Background information

Chlamydia is a common sexually transmitted infection (STI) caused by the bacterium, Chlamydia trachomatis. Chlamydia infection is extremely common. Chlamydia is the most common sexually transmitted infection in the United States. The Center for Disease Control estimated that 2.8 million Americans are infected with chlamydia each year.

Chlamydia can be transmitted during vaginal, anal, or oral sex. Chlamydia can also be passed from an infected mother to her baby during childbirth. Any sexually active person can be infected with chlamydia. The greater the number of sex partners, the greater the risk of infection.

About 75% of infected women and about 50% of infected men have no symptoms of chlaymida infection. If symptoms do occur, they usually appear within 1 to 3 weeks after exposure. Women who do have symptoms might have an abnormal vaginal discharge or a burning sensation when urinating. If the infection spreads from the cervix to the fallopian tubes some women still have no signs or symptoms; others have lower abdominal pain, low back pain, nausea, fever, pain during intercourse, or bleeding between menstrual periods.

Chlamydia can cause infertility

In women, untreated infection can spread into the fallopian tubes and cause the tubes to become blocked at the very ends (distal tubal obstruction). They can also develop scar tissue around the fallopian tubes that makes it more difficult for the tube to "pick up" the egg at the time of ovulation. The problems can lead to infertility and an increased risk for ectopic (tubal) pregnancy.

Distal tubal obstruction can be detected by performing a hysterosalpingogram. Pelvic adhesions, however, can only be detected by undergoing a surgical procedure to look inside of the abdominal cavity. This is usuaully done using a technique called laparoscopy where a fiber optic telescope is inserted through the belly button under general anesthesia. Since laparoscopy is a much more invasive procedure, it is desirable to avoid it whenever possible.

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