Research Article
Outcomes of Microdissection Testicular Sperm Extraction/Intracytoplasmic Sperm Injection in Cases of Nonobstructive Azoospermia: A Retrospective Study
Table 2
Outcomes of intracytoplasmic sperm injection (ICSI) in men with NOA with successful sperm retrieval and in men with obstructive azoospermia (OA).
| | Variable | NOA | OA | value |
| | Number of cycles | 101 | 329 | — | | Female age | 29 (26–31.5) | 31 (28–35) | <0.01 | | Infertility duration (years) | 3 (2–6) | 3.5 (2–6) | 0.265 | | Follicles punctured ()† | | | 0.075 | | Total oocytes ()† | | | 0.096 | | MII oocytes () | 11 (9–15) | 10 (6–14.5) | 0.038 | | Oocytes used for ICSI () | 11 (9–15) | 10 (6–14) | 0.049 | | Zygotes () | 8 (4–10) | 7 (4–11) | 0.385 | | Fertilization rate (%) | 65.04% (761/1170) | 78.57% (2771/3527) | <0.01 | | Two-pronuclear (2PN) zygotes () | 7 (4–9) | 7 (4–10.5) | 0.368 | | 2PN fertilization rate (%) | 59.40% (695/1170) | 70.68% (2493/3527) | <0.01 | | 2PN cleavages () | 3.5 (7–9) | 4 (7–10) | 0.395 | | 2PN cleavage rate (%) | 98.85% (687/695) | 97.99% (2443/2493) | 0.136 | | High-quality embryos () | 2 (1–5) | 3 (1–6) | 0.211 | | High-quality embryo rate (%) | 49.05% (337/687) | 51.58% (1260/2443) | 0.243 | | Blastocysts formed () | 1 (0–3.5) | 2 (0–4) | 0.357 | | Blastocyst formation rate (%) | 55.21% (212/384) | 56.72% (814/1435) | 0.595 | | Available blastocysts () | 0 (0–2) | 1 (0–2) | 0.323 | | Available blastocyst rate (%) | 72.64% (154/212) | 70.39% (573/814) | 0.521 |
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†; all other data are presented as median (interquartile range) or percentage (number ratio); . |
