Pregnancy outcome after IVF and ICSI in unexplained, endometriosis-associated and tubal factor infertility

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Pregnancy outcomes including live birth and abortion rates were superior for unexplained infertility compared to endometriosis-associated and tubal factor infertility after IVF/ICSI.

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Abstract

BACKGROUND: This study was undertaken in order to compare pregnancy outcome after IVF and ICSI in unexplained and endometriosis-associated infertility using tubal factor infertility as controls. METHODS: This was a retrospective cohort study of early IVF/ICSI pregnancies verified by serum hCG measurement, comparing the subsequent outcome in unexplained (n = 274) and minimal endometriosis-associated (n = 212) with tubal factor (n = 540) infertility as controls. From January 1990 to December 2002, 1026 conception cycles after treatment with IVF or ICSI complied with the inclusion criteria. RESULTS: Live birth rate, twin birth rate after transfer of two embryos and abortion rate prior to 6 weeks of gestation were superior for the unexplained (78.8, 23.5 and 11.7%) compared to endometriosis-associated (66.0, 15.0 and 19.3%) and tubal factor (66.7, 18.1 and 18.0%) infertility groups (P < 0.05). Compared to the endometriosis-associated, the unexplained infertility group attained a higher pregnancy rate after the first treatment cycle (P < 0.05). CONCLUSIONS: The overall better outcome for the unexplained infertility group with respect to live birth rate, twin birth rate and early abortion rate compared to the minimal peritoneal endometriosis-associated and tubal factor infertility groups might be a guide to select diagnostic groups for single embryo transfer and be useful in patient counselling.

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Condition tags

endometriosisinfertility

MeSH descriptors

Endometriosis Fallopian Tube Diseases Fertilization in Vitro Fertilization in Vitro Infertility, Female Pregnancy Outcome Pregnancy Outcome Sperm Injections, Intracytoplasmic Sperm Injections, Intracytoplasmic Abortion, Spontaneous Abortion, Spontaneous Abortion, Spontaneous Adult Adult Birth Rate Birth Rate Cohort Studies Cohort Studies Endometriosis Endometriosis

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References (35)

Cited by (50)

Source provenance

europepmc
last seen: 2026-10-18T09:30:06.152893+00:00
openalex
last seen: 2026-06-04T00:00:01.174412+00:00
pubmed
last seen: 2026-10-08T21:02:56.066688+00:00
License: CC0 · commercial use OK