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异位妊娠的发生占所有妊娠的0.3～1%.95%为输卵管妊娠,其中大多数发生于输卵管壶腹部或峡部.其早期诊断很难,虽诊断方法很多,如多次血红蛋白测定,尿妊娠试验,后穹窿穿刺,腹腔镜,子宫内膜镜检,绒毛膜促性腺激素(hCG)放射免疫法测定包括β-亚单位及放射受体分析法等,但仍有2/3的病人术前诊断错误.尤其是当尿中hCG阳性,而后穹窿穿刺阴性时,更难以区别正常妊娠及异位妊娠,所以寻找一种简便有效的诊断方法很有必要.
Ectopic pregnancy accounted for 0.3 ~ 1% of all pregnancies, 95% of tubal pregnancy, most of which occurred in the ampulla or the isthmus tubal early diagnosis is difficult, although many diagnostic methods, such as multiple hemoglobin determination, urine pregnancy Tests, culdocentesis, laparoscopy, endometrial microscopy, and chorionic gonadotropin (hCG) radioimmunoassay, including beta-subunit and radioreceptor assays, are still available Diagnosis is wrong.Especially when urinary hCG-positive, and then negative cul-de-sac, it is more difficult to distinguish between normal pregnancy and ectopic pregnancy, so looking for a simple and effective diagnostic method is necessary.