Gamete intrafallopian transfer: the effect of the number of eggs used and the depth of gamete placement on pregnancy initiation
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This study investigated how the number of eggs and the depth of gamete placement during GIFT influence pregnancy rates.
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Abstract
The role of the fallopian tube in initiating pregnancy was examined in 246 consecutive gamete intrafallopian transfer (GIFT) cycles. Before actual transfer, the ampulla of each tube was measured to determine the depth at which gametes could be placed. Fifty-seven transfers were made with four oocytes into a single tube; of these, when gametes were deposited deeper than 4 cm, the pregnancy rate was higher than when they were placed at between 3 to 4 cm (69.6% compared with 41.2%). Presumably, a deeper placement is more secure and decreases the likelihood of gamete displacement. The pregnancy rate also rose with the number of oocytes used: from 0% with a single oocyte to 42.9% with four oocytes.
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Too few in-corpus citations on either side for a chart; here are the lists.
Cites (2)
- Eighty consecutive cases of gamete intra-Fallopian transfer* 1988
- Gamete intra-Fallopian transfer: evaluation of 100 consecutive attempts 1987
Cited by (4)
- Effect of the number and depth of embryos transferred and unilateral or bilateral transfer in tubal embryo transfer (TET) 1992
- The Role of Assisted Conception in Male Infertility 1994
- Gamete Intrafallopian Transfer and Ultrasound-Guided Transcervical Fallopian Tube Canalization 1993
- Comparison of unilateral and bilateral tubal transfer in gamete intrafallopian transfer (GIFT) 1991
References (11)
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- Gamete intra-Fallopian transfer: evaluation of 100 consecutive attempts via openalex
- W2406261381 via openalex
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Cited by (4)
- The Role of Assisted Conception in Male Infertility 1994
- Gamete Intrafallopian Transfer and Ultrasound-Guided Transcervical Fallopian Tube Canalization 1993
- Effect of the number and depth of embryos transferred and unilateral or bilateral transfer in tubal embryo transfer (TET) 1992
- Comparison of unilateral and bilateral tubal transfer in gamete intrafallopian transfer (GIFT) 1991
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- openalex
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- last seen: 2026-07-28T06:55:22.213180+00:00
License: CC0
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