Using ejaculated, fresh, and frozen-thawed epididymal and testicular spermatozoa gives rise to comparable results after intracytoplasmic sperm injection

P. Nagy, J. Liu, J. Cecile, S. Silber, P. Devroey, A. Van Steirteghem

Research output: Contribution to journalArticle

262 Citations (Scopus)

Abstract

Objective: To describe the preparation of fresh or frozen-thawed epididymal and testicular sperm for intracytoplasmic single sperm injection and to compare the fertilization, embryo quality, and pregnancy rates (PRs) obtained after using these spermatozoa to the results when freshly ejaculated sperm was used for microinjection. Design: Retrospective analysis of 1,034 consecutive microinjection cycles. Ejaculated (965 cycles), fresh epididymal (43 cycles), frozen thawed epididymal (9 cycles), and testicular sperm (17 cycles) was used for intracytoplasmic sperm injection. Setting: Procedures were performed in a tertiary IVF center coupled with an institutional re search environment. Main Outcome Measures: Semen density and motility were judged by the World Health Organization criteria and sperm morphology was evaluated by the Tygerberg's strict criteria. After microinjection, oocyte intactness, fertilization, embryo cleavage, transfer, and PRs were evaluated and compared. Results: The median values of total sperm count, total motility and normal morphology were 17.85 x 106 37%, 8% for freshly ejaculated sperm; 46.20 x 106 12%, 9% for fresh epididymal sperm; 0.15 x 106, 0%, 0% for frozen-thawed epididymal sperm; and 0.54 x 106, 0% for testicular sperm (morphology was not determined). The percentage of intact oocytes after microinjection ranged from 84% to 90%. Normal fertilization rates were high when fresh or frozen-thawed epididymal and testicular spermatozoa were used for the injection (56%, 56%, 48%, respectively) but were significantly lower than for ejaculated sperm (70%). There was a higher proportion of transferable embryos obtained after ejaculated sperm injection than after testicular sperm injection. Forty percent, 58%, 33%, and 46% of cycles had positive serum hCG using ejaculated, fresh, or frozen-thawed epididymal and testicular sperm. Initial pregnancy loss occurred in 26.3% of the conception cycles. Conclusion: Intracytoplasmic sperm injection can provide high normal fertilization, cleavage, and PRs when fresh or frozen thawed epididymal and testicular spermatozoa are used, but normal fertilization rates are significantly lower than after microinjection with ejaculated sperm.

Original languageEnglish
Pages (from-to)808-815
Number of pages8
JournalFertility and Sterility
Volume63
Issue number4
Publication statusPublished - 1995

Fingerprint

Intracytoplasmic Sperm Injections
Spermatozoa
Microinjections
Fertilization
Pregnancy Rate
Injections
Oocytes
Embryonic Structures
Sperm Count
Embryo Transfer
Semen

Keywords

  • epididymal sperm
  • Intracytoplasmic sperm injection
  • male infertility
  • microinjection
  • microsurgical epididymal sperm aspiration
  • testicular sperm

ASJC Scopus subject areas

  • Obstetrics and Gynaecology

Cite this

Using ejaculated, fresh, and frozen-thawed epididymal and testicular spermatozoa gives rise to comparable results after intracytoplasmic sperm injection. / Nagy, P.; Liu, J.; Cecile, J.; Silber, S.; Devroey, P.; Van Steirteghem, A.

In: Fertility and Sterility, Vol. 63, No. 4, 1995, p. 808-815.

Research output: Contribution to journalArticle

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title = "Using ejaculated, fresh, and frozen-thawed epididymal and testicular spermatozoa gives rise to comparable results after intracytoplasmic sperm injection",
abstract = "Objective: To describe the preparation of fresh or frozen-thawed epididymal and testicular sperm for intracytoplasmic single sperm injection and to compare the fertilization, embryo quality, and pregnancy rates (PRs) obtained after using these spermatozoa to the results when freshly ejaculated sperm was used for microinjection. Design: Retrospective analysis of 1,034 consecutive microinjection cycles. Ejaculated (965 cycles), fresh epididymal (43 cycles), frozen thawed epididymal (9 cycles), and testicular sperm (17 cycles) was used for intracytoplasmic sperm injection. Setting: Procedures were performed in a tertiary IVF center coupled with an institutional re search environment. Main Outcome Measures: Semen density and motility were judged by the World Health Organization criteria and sperm morphology was evaluated by the Tygerberg's strict criteria. After microinjection, oocyte intactness, fertilization, embryo cleavage, transfer, and PRs were evaluated and compared. Results: The median values of total sperm count, total motility and normal morphology were 17.85 x 106 37{\%}, 8{\%} for freshly ejaculated sperm; 46.20 x 106 12{\%}, 9{\%} for fresh epididymal sperm; 0.15 x 106, 0{\%}, 0{\%} for frozen-thawed epididymal sperm; and 0.54 x 106, 0{\%} for testicular sperm (morphology was not determined). The percentage of intact oocytes after microinjection ranged from 84{\%} to 90{\%}. Normal fertilization rates were high when fresh or frozen-thawed epididymal and testicular spermatozoa were used for the injection (56{\%}, 56{\%}, 48{\%}, respectively) but were significantly lower than for ejaculated sperm (70{\%}). There was a higher proportion of transferable embryos obtained after ejaculated sperm injection than after testicular sperm injection. Forty percent, 58{\%}, 33{\%}, and 46{\%} of cycles had positive serum hCG using ejaculated, fresh, or frozen-thawed epididymal and testicular sperm. Initial pregnancy loss occurred in 26.3{\%} of the conception cycles. Conclusion: Intracytoplasmic sperm injection can provide high normal fertilization, cleavage, and PRs when fresh or frozen thawed epididymal and testicular spermatozoa are used, but normal fertilization rates are significantly lower than after microinjection with ejaculated sperm.",
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T1 - Using ejaculated, fresh, and frozen-thawed epididymal and testicular spermatozoa gives rise to comparable results after intracytoplasmic sperm injection

AU - Nagy, P.

AU - Liu, J.

AU - Cecile, J.

AU - Silber, S.

AU - Devroey, P.

AU - Van Steirteghem, A.

PY - 1995

Y1 - 1995

N2 - Objective: To describe the preparation of fresh or frozen-thawed epididymal and testicular sperm for intracytoplasmic single sperm injection and to compare the fertilization, embryo quality, and pregnancy rates (PRs) obtained after using these spermatozoa to the results when freshly ejaculated sperm was used for microinjection. Design: Retrospective analysis of 1,034 consecutive microinjection cycles. Ejaculated (965 cycles), fresh epididymal (43 cycles), frozen thawed epididymal (9 cycles), and testicular sperm (17 cycles) was used for intracytoplasmic sperm injection. Setting: Procedures were performed in a tertiary IVF center coupled with an institutional re search environment. Main Outcome Measures: Semen density and motility were judged by the World Health Organization criteria and sperm morphology was evaluated by the Tygerberg's strict criteria. After microinjection, oocyte intactness, fertilization, embryo cleavage, transfer, and PRs were evaluated and compared. Results: The median values of total sperm count, total motility and normal morphology were 17.85 x 106 37%, 8% for freshly ejaculated sperm; 46.20 x 106 12%, 9% for fresh epididymal sperm; 0.15 x 106, 0%, 0% for frozen-thawed epididymal sperm; and 0.54 x 106, 0% for testicular sperm (morphology was not determined). The percentage of intact oocytes after microinjection ranged from 84% to 90%. Normal fertilization rates were high when fresh or frozen-thawed epididymal and testicular spermatozoa were used for the injection (56%, 56%, 48%, respectively) but were significantly lower than for ejaculated sperm (70%). There was a higher proportion of transferable embryos obtained after ejaculated sperm injection than after testicular sperm injection. Forty percent, 58%, 33%, and 46% of cycles had positive serum hCG using ejaculated, fresh, or frozen-thawed epididymal and testicular sperm. Initial pregnancy loss occurred in 26.3% of the conception cycles. Conclusion: Intracytoplasmic sperm injection can provide high normal fertilization, cleavage, and PRs when fresh or frozen thawed epididymal and testicular spermatozoa are used, but normal fertilization rates are significantly lower than after microinjection with ejaculated sperm.

AB - Objective: To describe the preparation of fresh or frozen-thawed epididymal and testicular sperm for intracytoplasmic single sperm injection and to compare the fertilization, embryo quality, and pregnancy rates (PRs) obtained after using these spermatozoa to the results when freshly ejaculated sperm was used for microinjection. Design: Retrospective analysis of 1,034 consecutive microinjection cycles. Ejaculated (965 cycles), fresh epididymal (43 cycles), frozen thawed epididymal (9 cycles), and testicular sperm (17 cycles) was used for intracytoplasmic sperm injection. Setting: Procedures were performed in a tertiary IVF center coupled with an institutional re search environment. Main Outcome Measures: Semen density and motility were judged by the World Health Organization criteria and sperm morphology was evaluated by the Tygerberg's strict criteria. After microinjection, oocyte intactness, fertilization, embryo cleavage, transfer, and PRs were evaluated and compared. Results: The median values of total sperm count, total motility and normal morphology were 17.85 x 106 37%, 8% for freshly ejaculated sperm; 46.20 x 106 12%, 9% for fresh epididymal sperm; 0.15 x 106, 0%, 0% for frozen-thawed epididymal sperm; and 0.54 x 106, 0% for testicular sperm (morphology was not determined). The percentage of intact oocytes after microinjection ranged from 84% to 90%. Normal fertilization rates were high when fresh or frozen-thawed epididymal and testicular spermatozoa were used for the injection (56%, 56%, 48%, respectively) but were significantly lower than for ejaculated sperm (70%). There was a higher proportion of transferable embryos obtained after ejaculated sperm injection than after testicular sperm injection. Forty percent, 58%, 33%, and 46% of cycles had positive serum hCG using ejaculated, fresh, or frozen-thawed epididymal and testicular sperm. Initial pregnancy loss occurred in 26.3% of the conception cycles. Conclusion: Intracytoplasmic sperm injection can provide high normal fertilization, cleavage, and PRs when fresh or frozen thawed epididymal and testicular spermatozoa are used, but normal fertilization rates are significantly lower than after microinjection with ejaculated sperm.

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KW - Intracytoplasmic sperm injection

KW - male infertility

KW - microinjection

KW - microsurgical epididymal sperm aspiration

KW - testicular sperm

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