Subzonal insertion, a possible treatment for ?defective oocytes?

Abraham Benshushan, Yossef Ezra, Alex Simon, Jon W. Gordon, Neri Laufer
In: Journal of Assisted Reproduction and Genetics · 1993 · vol. 10(1) , pp. 98–99 · doi:10.1007/bf01204449 · PMID:8499688 · W2058428882
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⚙ AI-generated summary by claude@2026-06+body, 2026-06-13 ⓘ

This paper investigates subzonal insertion as a potential treatment for infertility attributed to a subgroup of "defective oocytes."

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This brief paper reports on “defective oocytes” as a proposed subgroup of unexplained infertility and describes subzonal insertion as a potential approach. It does so using the context of infertility classification and prior work on unexplained infertility rather than presenting a detailed study of participants or outcomes within the provided text. The main caveat is that the available content is limited to a short report with insufficient methodological and results detail to assess effect size, eligibility criteria, or limitations stated by the authors. Relevance to endometriosis: the paper references prior infertility research that includes endometriosis as part of factors considered in relation to IVF/embryo transfer success, though this paper’s main focus is defective oocytes and subzonal insertion.

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References Templeton AA, Penney GC: The incidence, characteristics, and prognosis of patients whose infertility is unexplained. Fertil Steril 1982;37:175–182 Bettendorf G: The normal infertile couple.In Infertility: Male and Female, V Insler, B Lunenfeld (eds). New York, Churchill Livingstone, 1986, pp 332–347 Taylor PJ, Leader A, Pattinson HA: Unexplained infertility: A reappraisal. Int J Fertil 1985;30:53–56 Navot D, Mausher SJ, Oehninger S, Liu HC, Veek LL, Kreiner D, Rosenwaks Z: The value of in vitro fertilization for the treatment of unexplained infertility. Fertil Steril 1988;49:854–857 Herting AJ: Implantation of the human ovum.In Progress in Infertility, SJ Behrman, RW Kistner (eds). Boston, Little, Brown, 1975, p 435 Leeton J, Mahadevan M, Trounson A,et al. Unexplained infertility and the possibilities of management with in vitro fertilization and embryo transfer. Aust NZ J Obstet Gynaecol 1984;24:131–134 Hull MG, Joyce DN, McLeod FN,et al. Human in vitro fertilization, in vivo sperm penetration of cervical mucus, and unexplained infertility. Lancet 1984;2:245–246 Dor J, Rudak E, Maschiach S,et al.: Success of IVF and ET—comparison to the results from patients with mechanical infertility and unexplained infertility. Presented at the Seventh European Sterility Congress, Monte Carlo, 1984, abstr 299 Fishel SB, Edwards RG: In Essentials of Fertilization in Human Conception in Vitro, RG Edwards, J Purdy (eds). London, Academic Press, 1982, p 157 Mahadevan MM, Trounson AO, Leeton JF: The relationship of tubal blockage, infertility of unknown cause, suspected male infertility, and endometriosis to success of in vitro fertilization and embryo transfer. Fertil Steril 1983;40:755–762 Lopata A, Johnston WIH, Leeton JF,et al. Use of in vitro fertilization in infertile couple.In The Infertile Couple, RJ Pepperel, B Hudson, C Wood (eds). Edinburgh, Churchill Livingstone, 1980, p 209 Ezra Y, Simon A, Laufer N: Defective oocytes: A new subgroup of unexplained infertility. Fertil Steril 1992;58:24–27 Author information Authors and Affiliations Rights and permissions About this article Cite this article Benshushan, A., Ezra, Y., Simon, A. et al. Subzonal insertion, a possible treatment for “defective oocytes”. J Assist Reprod Genet 10, 98–99 (1993). https://doi.org/10.1007/BF01204449 Received: Accepted: Issue date: DOI: https://doi.org/10.1007/BF01204449

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