Microdissection testicular sperm extraction in five Japanese patients with non‐mosaic Klinefelter's syndrome. (8th March 2018)

• Record Type: Journal Article
• Authors: Chihara, Makoto; Ogi, Kanna; Ishiguro, Tatsuya; Yoshida, Kunihiko; Godo, Chikako; Takakuwa, Koichi; Enomoto, Takayuki
• Is Part Of: Reproductive medicine and biology. Volume 17:Number 2(2018)
• Page Start: 209
• Page End: 216
• Publication Date: 2018-03-08
• Subjects: azoospermia -- infertility -- intracytoplasmic sperm injection -- Klinefelter's syndrome -- pregnancy; Reproduction -- Periodicals; Reproductive health -- Periodicals; 612.6
• DOI: 10.1002/rmb2.12092
• Languages: English
• ISSNs: 1445-5781

Abstract

Abstract: Cases: Microdissection testicular sperm extraction (micro‐TESE) was performed on five Japanese men with non‐mosaic Klinefelter's syndrome (KS) and non‐obstructive azoospermia in the authors' department. Here is reported the operative results and partner's clinical course for two cases where spermatozoa could be acquired. Also encountered was a man with non‐mosaic KS with the partial deletion of azoospermia factor (AZF)b. Because this is rare, it is reported in detail in the context of the previous literature. This case series describes the first experience of micro‐TESE by gynecologists in the current department. Outcome: The egg collection date was adjusted to the micro‐TESE day by using the modified ultra‐long method. Intracytoplasmic sperm injection (ICSI) was implemented for two men whose spermatozoa were acquired by micro‐TESE, with these progressing to the blastocyst stage. Subsequently, one case conceived after the transfer of fresh embryos and a healthy baby was delivered. However, spermatozoa could not be retrieved from the man with non‐mosaic KS who was harboring the partial deletion of AZFb. Conclusion: These findings suggest that ovulation induction by using the modified ultra‐long method with micro‐TESE and ICSI on the same day represents an effective treatment option for men with non‐mosaic KS. As there are cases where AZF deletion is recognized among patients with non‐mosaic KS, screening before micro‐TESE is strongly recommended. Abstract : For non‐mosaic Klinefelter syndrome with azoospermia, Micro‐TESE is an effective sperm collection method. In addition, in this study, we experienced a case with partial deletion of Azoospermia factor b in a nonmosaic Kleinfelter syndrome. Even in Klinefelter's syndrome it is important to search for the Azoospermia factor microdeletion for prediction of sperm acquisition.