[Andrologic indications for assisted reproduction techniques. When can increased fertilization rates by assisted reproduction be expected?].
Basics: When the cause of a sterile marriage must be assumed to lie with the husband, attempts are often made to resolve the problem by applying the techniques of assisted reproduction, viz insemination and in vitro fertilization (IVF). In such a case, this is the treatment of the wife, who may herself be completely healthy. Major points: In the case of oligoasthenoteratozoospermia (OAT) syndrome, the various techniques available are unable to decisively increase the conception rate. In particular, all IVF working groups are agreed that successes are greatly reduced in the case of inferior sperm quality, as compared with other indications. The "poorer" the original findings, the lower are the fertilization rates. The costs of IVF of about DM 6,000 per cycle mean that, with a success rate of some 8%, the overall cost for each pregnancy is about DM 72,000. This fact tends not to receive sufficient mention in discussions with the married couple. So far, it has not been possible to predict the success rate of an IVF on the basis of an examination of the ejaculate with any degree of accuracy with the aid of the parameters sperm cell density, motility and morphology. Nor do biological tests or an investigation of acrosome function help improve the situation. Even the direct observation of the fertilization of a human ovum, is of questionable value.(ABSTRACT TRUNCATED AT 250 WORDS)
Abteilung Andrologie, Universität Marburg/Lahn.
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Krause
D005307:Fertilization in Vitro; D006801:Humans; D007248:Infertility, Male / Q000209:etiology / Q000628:therapy*; D007317:Insemination, Artificial, Homologous; D008297:Male; D011379:Prognosis; D013076:Sperm Count
Andrologische Indikationen für assistierte Reproduktionstechniken. Wann sind durch assistierte Reproduktion erhöhte Fertilisationsraten zu erwarten?