Jonasson A, Pschera H, Carlström K
Department of Obstetrics and Gynecology, Karolinska Institutet, Huddinge University Hospital, Sweden.
Acta Obstet Gynecol Scand. 1992 Jan;71(1):46-7. doi: 10.3109/00016349209007946.
Serum concentrations of hCG were determined in blood samples taken 18-20 h and immediately before vacuum aspiration in 45 women in gestational weeks 7-9, admitted for legal abortion. In 35 of the women, a laminaria tent was inserted for cervical dilatation immediately after the first blood sampling. Serum hCG values decreased significantly in the women pretreated with laminaria tent, but were unchanged in the untreated women. This finding may indicate that pretreatment with a laminaria tent induces a partial placental detachment.
对45名因合法堕胎而入院、妊娠7 - 9周的女性，在18 - 20小时采的血样以及真空吸引术前即刻采的血样中测定血清人绒毛膜促性腺激素（hCG）浓度。其中35名女性在首次采血后立即置入海藻棒以扩张宫颈。经海藻棒预处理的女性血清hCG值显著下降，但未接受处理的女性血清hCG值未发生变化。这一发现可能表明海藻棒预处理会导致部分胎盘剥离。
