Intracytoplasmic sperm injection (ICSI) in unexplained and stage I endometriosis-associated infertility after fertilization failure with in vitro fertilization (IVF)

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Intracytoplasmic sperm injection yielded similar implantation, pregnancy, and outcome rates in patients with unexplained infertility and stage I endometriosis-associated infertility, despite a lower diploid fertilization rate in the endometriosis group.

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This retrospective cohort study compared ICSI outcomes in two groups of infertility patients with a minimum of one IVF cycle showing low fertilization (<20%) and normal semen parameters: unexplained infertility (n=48) and stage I endometriosis-associated infertility (n=43), with age-matched male factor infertility patients (n=91) as controls. The authors found that the diploid fertilization rate was significantly lower in the stage I endometriosis-associated infertility group than in the unexplained infertility group, while embryo transfer score, implantation rate, pregnancy rate, and pregnancy outcomes were similar between the two groups. The study’s major limitation is its retrospective design and the use of historical cycles spanning 1997–2006, with no randomized allocation of ICSI. This paper is centrally about endometriosis — it specifically evaluates ICSI outcomes in stage I endometriosis-associated infertility after IVF fertilization failure.

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Abstract

PURPOSE: To investigate possible differences between unexplained and stage I endometriosis-associated infertility in ICSI cycles conducted after low fertilization (<20%) in preceding IVF cycles with normal semen parameters. METHODS: Retrospective cohort study consisting of patients with unexplained (n=48) and stage I endometriosis-associated infertility (n=43) with a minimum of one IVF cycle with <20% fertilized oocytes and normal semen quality, treated with ICSI from January 1997 to January 2006. Age matched male factor infertility patients (n=91) were used as controls. RESULTS: Diploid fertilization rate was significantly lower in the stage I endometriosis-associated infertility group compared to the unexplained infertility group. Score of the transferred embryos, implantation rate, pregnancy rate and outcome were similar in the two groups. CONCLUSIONS: ICSI appears to be an efficient treatment option after fertilization failure with IVF in unexplained and stage I endometriosis-associated infertility.
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Abstract

Purpose: To investigate possible differences between unexplained and stage I endometriosis-associated infertility in ICSI cycles conducted after low fertilization (<20%) in preceding IVF cycles with normal semen parameters.

Methods

Retrospective cohort study consisting of patients with unexplained (n=48) and stage I endometriosis-associated infertility (n=43) with a minimum of one IVF cycle with <20% fertilized oocytes and normal semen quality, treated with ICSI from January 1997 to January 2006. Age matched male factor infertility patients (n=91) were used as controls.

Results

Diploid fertilization rate was significantly lower in the stage I endometriosis-associated infertility group compared to the unexplained infertility group. Score of the transferred embryos, implantation rate, pregnancy rate and outcome were similar in the two groups.

Conclusions

ICSI appears to be an efficient treatment option after fertilization failure with IVF in unexplained and stage I endometriosis-associated infertility. Similar content being viewed by others

References

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Condition tags

endometriosisinfertility

MeSH descriptors

Endometriosis Fertilization in Vitro Infertility Infertility Sperm Injections, Intracytoplasmic Adult Analysis of Variance Cohort Studies Endometriosis Evaluation Studies as Topic Female Humans Infertility Pregnancy Pregnancy Rate Retrospective Studies Treatment Outcome

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