Exposed pregnancies
Women who had been hysteroscopically diagnosed with IUAs and underwent
hysteroscopic adhesiolysis before this pregnancy were categorized as
exposed pregnancies. Adhesion were only divided by scissors through
hysteroscope without energy source. Other data regarding hysteroscopic
surgery, such as date of surgery, number of surgeries and time interval
from surgery to conception, were extracted via manual review of the
electronic medical record.