Progesterone as a predictor of ectopic pregnancy when the ultrasound is indeterminate.

The objective of this study was to evaluate a progesterone cutpoint of 5.0 ng/mL ability to identify abnormal pregnancy (abnormal intrauterine pregnancy and ectopic pregnancy) as well as ectopic pregnancy alone in 2 subclasses of indeterminate ultrasounds. This was a prospective observational study of emergency department patients with abdominal pain or vaginal bleeding and an indeterminate transvaginal ultrasound.

Subclassification of indeterminate pelvic ultrasonography: prospective evaluation of the risk of ectopic pregnancy.

Study Objective: We sought to determine the frequency of ectopic pregnancy among subclasses of indeterminate ultrasonographic examinations.

Methods: A prospective observational study was performed from January 1, 1995, to August 31, 2000, on consecutive emergency department patients in the first trimester of pregnancy with a chief complaint of abdominal pain or vaginal bleeding and who had an indeterminate transvaginal ultrasonographic examination at the time of the ED visit. Patients were excluded if lost to follow-up.

Isolated fluid in the cul-de-sac: how well does it predict ectopic pregnancy?

We examined the risk of ectopic pregnancy among patients with isolated abnormal cul-de-sac fluid at transvaginal ultrasound. We conducted a retrospective cohort study of all ED patients presenting January 1995 to August 1999 with abdominal pain or vaginal bleeding and a positive beta-hCG test. The risk of ectopic pregnancy in patients with a moderate volume of anechoic fluid was compared with those with either a large volume of anechoic fluid or any echogenic fluid.