Research favors single embryo in vitro

December 23, 2010 3:17:00 PM PST
Many women turn to in vitro fertilization when they have difficulty becoming pregnant, and now there is evidence that one method may be better than another.

A study published in the British Medical Journal found women who use a single-embryo transfer are five times more likely to have a healthy baby than women who use the double-embryo method.

The study focused on 1,367 patients who underwent the process, which involves fertilizing a woman's eggs in a laboratory dish. Embryos are then transferred to the woman's uterus.

Many doctors transfer more than one embryo to increase the chance that a woman will become pregnant, but multiple pregnancies are associated with more complications.