Effect of alfentanil dosage during oocyte retrieval on fertilization and embryo quality.

• OBJECTIVE: A possible negative effect of pain-relieving analgesics used during oocyte retrieval on fertilization and embryo development has been discussed. This study examines whether alfentanil dosage adversely affects fertilization and/or embryo quality. STUDY DESIGN: In a retrospective observational study the effect of different doses of alfentanil on two primary endpoints, fertilization rate and good quality embryo (GQE) rate, were compared in 663 women. RESULTS: In group A (0.5mg alfentanil) mean fertilization rate was 0.6+/-0.3 versus 0.6+/-0.2 (P=0.678, adjusted P=0.937, 95% CI for the difference -0.041; 0.044) and mean GQE rate was 0.6+/-0.3 versus 0.5+/-0.3 (P=0.207, adjusted P=0.179, 95% CI for the difference -0.015; 0.078), respectively. A paired comparison of 65 women who underwent repeated IVF cycles found that, compared with 0.5mg alfentanil had no adverse effects on fertilization rate (mean difference 0.05+/-0.3, P=0.231, 95% CI -0.02; 0.12) or GQE rate (mean difference -0.02+/-0.4, P=0.970, 95% CI -0.12; 0.09). CONCLUSION: The amount of alfentanil is not associated with adverse effects on fertilization rate, embryo development, or clinical pregnancy rate, which is reassuring and indicates that women can be offered adequate pain relief.

Nyckelord

Adult

Alfentanil

administration & dosage

adverse effects

Analgesics

administration & dosage

adverse effects

Embryo

Mammalian

Embryonic Development

drug effects

Female

Fertilization in Vitro

methods

Humans

Oocyte Retrieval

methods

Pregnancy

Pregnancy Rate

Retrospective Studies

Treatment Outcome

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)