Rabinerson David, Pollak-Rabinerson Nataly, Glezerman Marek
Helen Schneider Hospital for Women, Rabin Medical Center, Petah Tikva.
Harefuah. 2008 Feb;147(2):155-8, 181.
Superfecundation and superfetation are rare and obscure phenomena with no clear clinical significance but with legal and moral-social meanings. These obstetric rarities are known since the times of the ancient Greeks. There are several physiological explanations that account for superfecundation but not for superfetation, yet, both have been described. In this era of assisted reproductive techniques it is reasonable to assume that the prevalence of superfecundation increases, which may also apply to superfetation. Today, there are several reliable diagnostic techniques to verify heteropaternity in multifetal pregnancies, hence superfecundation. Nevertheless, our knowledge regarding these amazing phenomena remains limited due to both ethical and medico-legal barriers that prevent their implementation.
异期复孕和异期受孕是罕见且晦涩的现象，虽无明确临床意义，但具有法律及道德社会层面的意义。自古希腊时期起就已为人所知这些产科罕见情况。有多种生理学解释可说明异期复孕，但无法解释异期受孕，不过，二者均有相关描述。在这个辅助生殖技术的时代，有理由推测异期复孕的发生率会增加，这可能也适用于异期受孕。如今，有几种可靠的诊断技术可用于验证多胎妊娠中的异父情况，即异期复孕。然而，由于伦理和医疗法律障碍阻碍了这些技术的应用，我们对这些惊人现象的了解仍然有限。
