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Different Intervals Between Vasectomy and Sperm Retrieval Interfere in the Reproductive Capacity from Vasectomized Men

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Abstract

Purpose : To evaluate the relationship between the postvasectomy period and sperm reproductive capacity after ICSI.

Methods : Seventy-seven ICSI cycles with percutaneous epididymal sperm aspiration (PESA) were reviewed. Patients were divided into 4 groups according to the interval after vasectomy: 0 – 5 years (G1); 6 – 8 years (G2); 9 – 14 years (G3), and >15 years (G4).

Results : Clinical and ongoing pregnancy rates did not correlate significantly with the time period of vasectomy until 14 years. Although the higher implantation rate observed in G1, no significant differences were noted among Groups 1–3. The miscarriage rates increased from G1 to G4, reaching a statistical significance among G1, G2, and G3 compared with G4. When groups were also divided according to the maternal age, the same results were obtained.

Conclusions : The interval between the vasectomy and the sperm retrieval procedure has no effect on the outcome until the interval of 14 years.

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Authors and Affiliations

  1. Assisted Fertilization Center, São Paulo, Brazil

    Edson Borges Jr., Lia Mara Rossi-Ferragut, Claudia Chagas Rocha & Assumpto Iaconelli Jr.

  2. Brazilian Society of Assisted Reproduction, Brazil

    Edson Borges Jr.

  3. Scientific Department of Fertility, Assisted Fertilization Center, São Paulo, Brazil

    Lia Mara Rossi-Ferragut

  4. Department of Urology, University of São Paulo Medical School, São Paulo, Brazil

    Fábio Firmbach Pasqualotto

  5. IVF Laboratory of Fertility, Assisted Fertilization Center, São Paulo, Brazil

    Claudia Chagas Rocha

Authors
  1. Edson Borges Jr.
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  2. Lia Mara Rossi-Ferragut
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  3. Fábio Firmbach Pasqualotto
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  4. Claudia Chagas Rocha
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  5. Assumpto Iaconelli Jr.
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Borges, E., Rossi-Ferragut, L.M., Pasqualotto, F.F. et al. Different Intervals Between Vasectomy and Sperm Retrieval Interfere in the Reproductive Capacity from Vasectomized Men. J Assist Reprod Genet 20, 33–37 (2003). https://doi.org/10.1023/A:1021210805867

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