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一般认为,连续测定血清hCG—β亚单位有助于诊断可疑的异位妊娠。因为hCG 值的下降标志着滋养叶细胞停止生长,此种情况在过期流产或异位妊娠中都可发生。对疑为异位妊娠的病例测定hCG—β亚单位,结合超声检查一般可以延后或避免手术干予,但用这两项检查有时亦可能发生误诊。例如本文1例阴道点滴出血1周的病例,bCG—β亚单位的血清浓度持续下降,而超声波反复探测到宫腔内有变形的胎囊,临床误诊为过期流产。在准备刮宫的过程中发生输卵管破裂、内出血,经急救手术才治愈。在经手术证明为异位妊娠的病例中,hCG—β亚单位水平有的上升,有的平坦,有的下降,一般都不象
It is generally believed that continuous determination of serum hCG-β subunit contributes to the diagnosis of suspected ectopic pregnancy. Because the decline in hCG marks the trophoblast cell growth stops, this situation can occur in overdue abortion or ectopic pregnancy. HCG-beta subunits are determined in cases of suspected ectopic pregnancy, which can generally be postponed or avoided with ultrasound, but misdiagnosis may sometimes occur with these two tests. For example, in this case of vaginal bleeding in 1 case, bCG-β subunit serum concentrations continued to decline, and ultrasound repeated detection of intrauterine deformation of fetal sac, clinically misdiagnosed as expired abortion. In the process of preparation for curettage tubal rupture, internal bleeding, was cured by emergency surgery. In cases of ectopic pregnancy proved surgically, hCG-β subunit levels have increased, some flat, and some decline, generally do not like