Goldman G A, Dicker D, Feldberg D, Ashkenazi J, Yeshaya A, Goldman J A
Tel-Aviv University, Medical School, Israel.
J Perinat Med. 1989;17(2):157-62. doi: 10.1515/jpme.1989.17.2.157.
The incidence of multiple conceptions is higher than the incidence of multiple deliveries. The "vanishing fetus" is a relatively new concept being a direct result of the advent of ultrasonography. Early first trimester loss of one or more conceptuses accounts for this phenomenon. The patient may be symptomatic (bleeding, pain, abdominal cramps) but in most instances, the finding is fortuitous. We report 17 cases of a vanishing fetus in a multiple gestation of greater than twins. In 13 patients one fetus vanished in the course of pregnancy while in four cases two fetuses disappeared from each gestation. The phenomenon was observed up to the 16th week of pregnancy. It is our feeling that the finding of a vanishing fetus should be recorded early, as the prognosis for pregnancy bleeding is different than in the singleton pregnancy. Thus information regarding this phenomenon should be given to couples who consider artificial reduction of fetuses in the multiple gestation.
多胎妊娠的发生率高于多胎分娩的发生率。“消失的胎儿”是一个相对较新的概念，是超声检查出现的直接结果。孕早期一个或多个胚胎的早期丢失导致了这一现象。患者可能有症状（出血、疼痛、腹部绞痛），但在大多数情况下，这一发现是偶然的。我们报告了17例大于双胎的多胎妊娠中出现消失胎儿的病例。13例患者在妊娠过程中一个胎儿消失，4例患者每个妊娠中有两个胎儿消失。该现象在妊娠第16周前均有观察到。我们认为，消失胎儿的发现应尽早记录，因为多胎妊娠出血的预后与单胎妊娠不同。因此，应将有关这一现象的信息告知考虑对多胎妊娠进行人工减胎的夫妇。
