The incidence of polyspermy during in vitro fertilisation. A study at the H. F. Verwoerd Hospital, Pretoria

Results from 1249 in vitro-fertilised human oocytes were analysed to identify the incidence of polyspermy. In this study polyspermy occurred in 23 oocytes (1.8%). The effects of the various ovulation induction protocols employed, maturation of oocytes, incubation time before insemination and anaesth...

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Veröffentlicht in:South African medical journal Jg. 72; H. 7; S. 480
Hauptverfasser: Sevenster, C B, van der Merwe, J V, van Zyl, C
Format: Journal Article
Sprache:Englisch
Veröffentlicht: South Africa 03.10.1987
Schlagworte:
Fertilization
Fertilization in Vitro
Humans
Male
Spermatozoa
ISSN:0256-9574
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Zusammenfassung:Results from 1249 in vitro-fertilised human oocytes were analysed to identify the incidence of polyspermy. In this study polyspermy occurred in 23 oocytes (1.8%). The effects of the various ovulation induction protocols employed, maturation of oocytes, incubation time before insemination and anaesthesia exposure were examined in order to identify a cause for polyspermy. Early diagnosis of polyspermy is important because the polyspermic embryo may appear morphologically normal at a later stage but should not be transferred since this nearly always results in a spontaneous abortion.
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ISSN:0256-9574