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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Bibliographic Details
Published in:	South African medical journal Vol. 72; no. 7; p. 480
Main Authors:	Sevenster, C B, van der Merwe, J V, van Zyl, C
Format:	Journal Article
Language:	English
Published:	South Africa 03.10.1987
Subjects:	Fertilization Fertilization in Vitro Humans Male Spermatozoa
ISSN:	0256-9574
Online Access:	Get more information
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Summary:	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.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0256-9574