Alvero Ruben
Department of Obstetrics and Gynecology, University of Colarado Health Sciences Center, Aurora 80010-0510, USA.
Obstet Gynecol Surv. 2002 Aug;57(8):519-29. doi: 10.1097/00006254-200208000-00022.
Despite striking progress in reproductive medicine over the past quarter century, the number of high-order multiple gestations are unacceptably high, largely as a result of the drive to maintain pregnancy rates in a competitive range. Morphologic criteria are currently used to define the reproductive competence of individual embryos but are imperfect predictors of implantation potential. Current and potential strategies to improve the selection of embryos are described. By the use of several of these approaches, it is hoped that the overall number of embryos that are transferred will be reduced, thereby also reducing the multiple gestation rate.
尽管在过去四分之一个世纪里生殖医学取得了显著进展，但高阶多胎妊娠的数量高得令人无法接受，这主要是在竞争环境中维持妊娠率的努力所致。目前形态学标准用于定义单个胚胎的生殖能力，但并非植入潜力的完美预测指标。本文描述了当前及潜在的改善胚胎选择的策略。希望通过使用其中几种方法，能够减少移植胚胎的总数，从而降低多胎妊娠率。
