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  • Title: Successful childbirth after intracytoplasmic morphologically selected sperm injection without assisted oocyte activation in a patient with globozoospermia.
    Author: Sermondade N, Hafhouf E, Dupont C, Bechoua S, Palacios C, Eustache F, Poncelet C, Benzacken B, Lévy R, Sifer C.
    Journal: Hum Reprod; 2011 Nov; 26(11):2944-9. PubMed ID: 21857011.
    Abstract:
    We here report a successful pregnancy and healthy childbirth obtained in a case of total globozoospermia after intracytoplasmic morphologically selected sperm injection (IMSI) without assisted oocyte activation (AOA). Two semen analyses showed 100% globozoospermia on classic spermocytogram. Motile sperm organelle morphology examination (MSOME) analysis at ×10,000 magnification confirmed the round-headed aspect for 100% of sperm cells, but 1% of the spermatozoa seemed to present a small bud of acrosome. This particular aspect was confirmed by transmission electron microscopy and anti-CD46 staining analysis. Results from sperm DNA fragmentation and fluorescence in situ hybridization analyses were normal. The karyotype was 46XY, and no mutations or deletions in SPATA16 and DPY19L2 genes were detected. Considering these results, a single IMSI cycle was performed, and spermatozoa were selected for the absence of vacuoles and the presence of a small bud of acrosome. A comparable fertilization rate with or without calcium-ionophore AOA was observed. Two fresh top-quality embryos obtained without AOA were transferred at Day 2 after IMSI, leading to pregnancy and birth of a healthy baby boy. This successful outcome suggests that MSOME may be useful in cases of globozoospermia in order to carefully evaluate sperm morphology and to maximize the benefit of ICSI/IMSI.
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