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COMPARATIVE STUDY
JOURNAL ARTICLE
Intracytoplasmic sperm injection outcome of ejaculated versus extracted testicular spermatozoa in cryptozoospermic men.
Fertility and Sterility 2013 June
OBJECTIVE: To compare intracytoplasmic sperm injection (ICSI) outcome of patients with cryptozoospermia after use of ejaculated versus testicular sperm in different cycles of the same patients.
DESIGN: Retrospective cohort study.
SETTING: University-affiliated infertility center.
PATIENT(S): A total of 17 patients with cryptozoospermia who underwent a total of 116 ICSI cycles.
INTERVENTION(S): The patients initially underwent several ICSI cycles using ejaculated sperm (n = 68, 58.6%) that were followed by ICSI cycles using testicular sperm (n = 48, 41.4%).
MAIN OUTCOME MEASURE(S): Fertilization rate, pregnancy rate (PR).
RESULT(S): There were no significant differences in fertilization rates between the two subgroups. A comparison between testicular sperm extraction (TESE) versus ejaculated sperm cycles revealed significantly higher implantation rate (20.7% vs. 5.7%), higher PR (42.5% vs. 15.1%), and higher take home baby rate (27.5% vs. 9.4%). A multivariable logistic regression analysis showed three significant predictors for pregnancy, namely the use of testicular sperm (odds ratio [OR] 5.1, 95% confidence interval [95% CI] 1.8-14.8), use of motile sperm (OR 12.9, 95% CI 2.1-79.1), and female age (OR 0.83, 95% CI 0.7-0.9).
CONCLUSION(S): Testicular sperm extraction is justified in patients with cryptozoospermia who fail to conceive by ICSI using ejaculated spermatozoa, as it offers higher PR.
DESIGN: Retrospective cohort study.
SETTING: University-affiliated infertility center.
PATIENT(S): A total of 17 patients with cryptozoospermia who underwent a total of 116 ICSI cycles.
INTERVENTION(S): The patients initially underwent several ICSI cycles using ejaculated sperm (n = 68, 58.6%) that were followed by ICSI cycles using testicular sperm (n = 48, 41.4%).
MAIN OUTCOME MEASURE(S): Fertilization rate, pregnancy rate (PR).
RESULT(S): There were no significant differences in fertilization rates between the two subgroups. A comparison between testicular sperm extraction (TESE) versus ejaculated sperm cycles revealed significantly higher implantation rate (20.7% vs. 5.7%), higher PR (42.5% vs. 15.1%), and higher take home baby rate (27.5% vs. 9.4%). A multivariable logistic regression analysis showed three significant predictors for pregnancy, namely the use of testicular sperm (odds ratio [OR] 5.1, 95% confidence interval [95% CI] 1.8-14.8), use of motile sperm (OR 12.9, 95% CI 2.1-79.1), and female age (OR 0.83, 95% CI 0.7-0.9).
CONCLUSION(S): Testicular sperm extraction is justified in patients with cryptozoospermia who fail to conceive by ICSI using ejaculated spermatozoa, as it offers higher PR.
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