Research Article
Outcomes of Microdissection Testicular Sperm Extraction/Intracytoplasmic Sperm Injection in Cases of Nonobstructive Azoospermia: A Retrospective Study
Table 5
Fertilization and pregnancy outcomes of ICSI for NOA using fresh versus thawed sperm collected by microdissection testicular sperm extraction.
| | Variable | Fresh sperm | Thawed sperm | value |
| | Number of cycles | 56 | 45 | — | | Female age | 29 (26–31) | 28 (26–32.5) | 0.784 | | Infertility duration (years) | 3 (2–6) | 3 (1.5–5.5) | 0.796 | | Follicles punctured () | 17.5 (13–22.75) | 16 (12–22.5) | 0.475 | | Total oocytes () | 14 (10–19) | 13 (11–17.5) | 0.959 | | MII oocytes () | 11 (8.25–15) | 11 (9–15) | 0.921 | | Oocytes used for ICSI () | 11 (8–15) | 11 (9–15) | 0.875 | | Zygotes () | 8 (6.25–10) | 6 (3–9) | 0.007 | | Fertilization rate (%) | 74.92% (484/646) | 52.86% (277/524) | <0.001 | | Two-pronuclear (2PN) zygotes (n) | 8 (6–9) | 5 (2.5–8) | 0.008 | | 2PN fertilization rate (%) | 68.27% (441/646) | 48.47% (254/524) | <0.001 | | 2PN cleavages () | 7 (6–9) | 5 (2.5–8) | 0.010 | | 2PN cleavage rate (%) | 98.87% (436/441) | 98.82% (251/254) | 0.955 | | High-quality embryos () | 4 (2–6) | 2 (1–4) | 0.007 | | High-quality embryo rate (%) | 52.06% (227/436) | 43.82% (110/251) | 0.038 | | Blastocysts formed () | 1 (0–4) | 1 (0–3) | 0.370 | | Blastocyst formation rate (%) | 55.79% (130/233) | 54.30% (82/151) | 0.774 | | Available blastocysts () | 1 (0–2) | 0 (0–2) | 0.421 | | Available blastocyst rate (%) | 73.85% (96/130) | 70.73% (58/82) | 0.620 |
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Notes: data are presented as median (interquartile range) or percentage (number ratio); . |
