Gamete intrafallopian transfer

Last updated

Gamete intrafallopian transfer
MeSH D015181

Gamete intrafallopian transfer (GIFT) is a tool of assisted reproductive technology against infertility. Eggs are removed from a woman's ovaries, and placed in one of the fallopian tubes, along with the man's sperm. The technique, first attempted by Steptoe and Edwards [1] and later pioneered by endocrinologist Ricardo Asch, allows fertilization to take place inside the woman's uterus. [2]

Contents

With the advances in IVF the GIFT procedure is used less as pregnancy rates in IVF tend to be equal or better and do not require laparoscopy when the egg is put back. [3]

Method

It takes, on average, four to six weeks to complete a cycle of GIFT. First, the woman must take a fertility drug to stimulate egg production in the ovaries. The doctor will monitor the growth of the ovarian follicles, and once they are mature, the woman will be injected with human chorionic gonadotropin (hCG). The eggs will be harvested approximately 36 hours later, mixed with the man's sperm, and placed back into the woman's fallopian tubes using a laparoscope.

Indications

A woman must have at least one normal fallopian tube in order for GIFT to be suitable. It is used in instances where the fertility problem relates to sperm dysfunction, and where the couple has idiopathic (unknown cause) infertility. Some patients may prefer the procedure to IVF for ethical reasons, since the fertilization takes place inside the body. [4] This is a semi invasive procedure and requires laparoscopy.

Success rate

As with most fertility procedures, success depends on the couple's age and the woman's egg quality. It is estimated that approximately 25–30% of GIFT cycles result in pregnancy, [5] with a third of those being twins or triplets, etc. The First GIFT baby in the UK was Todd Holden born in October 1986. The first application of this method in Latin America was held in Argentina on 13 May 1986, and was led by Dr. Ricardo Asch, the treatment was successfully completed with the birth of Manuel Campo Lopez. [6] In Venezuela, the first GIFT babies were Luis Hernández, Rosa Helena Hernández and Luisa Hernández, who were born on 24 June 1987 and were also the first triplets to be born using the GIFT method.

Bioethical issues

Gamete intrafallopian transfer is not technically in vitro fertilisation because with GIFT, fertilisation takes place inside the body, not on a petri dish. Some Catholic moral theologians are nevertheless concerned with it because they "consider this to be a replacement of the marital act, and therefore immoral." [7] [8]

See also

Related Research Articles

<span class="mw-page-title-main">In vitro fertilisation</span> Assisted reproductive technology procedure

In vitro fertilisation (IVF) is a process of fertilisation where an egg is combined with sperm in vitro. The process involves monitoring and stimulating a patient's ovulatory process, removing an ovum or ova from their ovaries and letting sperm fertilise them in a culture medium in a laboratory. After the fertilised egg (zygote) undergoes embryo culture for 2–6 days, it is transferred by catheter into the uterus, with the intention of establishing a successful pregnancy.

Reproductive technology encompasses all current and anticipated uses of technology in human and animal reproduction, including assisted reproductive technology (ART), contraception and others. It is also termed Assisted Reproductive Technology, where it entails an array of appliances and procedures that enable the realization of safe, improved and healthier reproduction. While this is not true of all people, for an array of married couples, the ability to have children is vital. But through the technology, infertile couples have been provided with options that would allow them to conceive children.

Infertility is the inability of an animal or plant to reproduce by natural means. It is usually not the natural state of a healthy adult, except notably among certain eusocial species. It is the normal state of a human child or other young offspring, because they have not undergone puberty, which is the body's start of reproductive capacity.

<span class="mw-page-title-main">Human Fertilisation and Embryology Authority</span>

The Human Fertilisation and Embryology Authority (HFEA) is an executive non-departmental public body of the Department of Health and Social Care in the United Kingdom. It is a statutory body that regulates and inspects all clinics in the United Kingdom providing in vitro fertilisation (IVF), artificial insemination and the storage of human eggs, sperm or embryos. It also regulates human embryo research.

Insemination is the introduction of sperm into a female's reproductive system for the purpose of impregnating, also called fertilizing, the female for sexual reproduction. The sperm is introduced into the uterus of a mammal or the oviduct of an oviparous (egg-laying) animal. In mammals, insemination normally occurs during sexual intercourse or copulation, but insemination can take place in other ways, such as by artificial insemination.

<span class="mw-page-title-main">Assisted reproductive technology</span> Methods to achieve pregnancy by artificial or partially artificial means

Assisted reproductive technology (ART) includes medical procedures used primarily to address infertility. This subject involves procedures such as in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), cryopreservation of gametes or embryos, and/or the use of fertility medication. When used to address infertility, ART may also be referred to as fertility treatment. ART mainly belongs to the field of reproductive endocrinology and infertility. Some forms of ART may be used with regard to fertile couples for genetic purpose. ART may also be used in surrogacy arrangements, although not all surrogacy arrangements involve ART. The existence of sterility will not always require ART to be the first option to consider, as there are occasions when its cause is a mild disorder that can be solved with more conventional treatments or with behaviors based on promoting health and reproductive habits.

<span class="mw-page-title-main">Carl Wood</span>

Edwin Carlyle "Carl" Wood,, FRANZCOG was a prominent Australian gynaecologist, best known for his pioneering work developing and commercialising the technique of in-vitro fertilisation (IVF). He gained considerable international and national attention for his wide-ranging contributions in the field of women's health over a period of almost 50 years, although not all of it was positive given the controversial nature of many of his endeavours.

Zygote intra fallopian transfer (ZIFT) is an infertility treatment used when a blockage in the fallopian tubes prevents the normal binding of sperm to the egg. Egg cells are removed from a woman's ovaries, and in vitro fertilised. The resulting zygote is placed into the fallopian tube by the use of laparoscopy. The procedure is a spin-off of the gamete intrafallopian transfer (GIFT) procedure. The pregnancy and implantation rates in ZIFT cycles are 52.3 and 23.2% which were higher than what was observed in IVF cycles which were 17.5 and 9.7%.

Egg donation is the process by which a woman donates eggs to enable another woman to conceive as part of an assisted reproduction treatment or for biomedical research. For assisted reproduction purposes, egg donation typically involves in vitro fertilization technology, with the eggs being fertilized in the laboratory; more rarely, unfertilized eggs may be frozen and stored for later use. Egg donation is a third-party reproduction as part of assisted reproductive technology.

Ricardo Hector Asch is an obstetrician, gynecologist, and endocrinologist. He worked with reproductive technology and pioneered gamete intrafallopian transfer (GIFT), as well as working on research linking fertility and marijuana usage, and investigated the use of GnRH analogues with Andrew Schally. In the mid-1990s he was accused of transferring ova harvested from women into other patients without proper consent at the University of California, Irvine's fertility clinic. Asch left the United States one year before a federal indictment was filed. He was tried and acquitted of all charges in Argentina in 2008. In 2011 Mexico denied an extradition request by the United States as it would constitute double jeopardy and no new evidence was brought forth. He is currently living in Mexico City.

<span class="mw-page-title-main">Hydrosalpinx</span> Medical condition

A hydrosalpinx is a condition that occurs when a fallopian tube is blocked and fills with serous or clear fluid near the ovary. The blocked tube may become substantially distended giving the tube a characteristic sausage-like or retort-like shape. The condition is often bilateral and the affected tubes may reach several centimeters in diameter. The blocked tubes cause infertility. A fallopian tube filled with blood is a hematosalpinx, and with pus a pyosalpinx.

<span class="mw-page-title-main">Fertility clinic</span>

Fertility clinics are medical clinics that assist couples, and sometimes individuals, who want to become parents but for medical reasons have been unable to achieve this goal via the natural course. Clinics apply a number of diagnosis tests and sometimes very advanced medical treatments to achieve conceptions and pregnancies.

<span class="mw-page-title-main">Human Fertilisation and Embryology Act 1990</span> United Kingdom legislation

The Human Fertilisation and Embryology Act 1990 is an Act of the Parliament of the United Kingdom. It created the Human Fertilisation and Embryology Authority which is in charge of human embryo research, along with monitoring and licensing fertility clinics in the United Kingdom.

<span class="mw-page-title-main">Oocyte cryopreservation</span> Procedure to preserve a womans eggs (oocytes)

Oocyte cryopreservation is a procedure to preserve a woman's eggs (oocytes). This technique has been used to enable women to postpone pregnancy to a later date – whether for medical or social reasons. Several studies have shown that most infertility problems are due to germ cell deterioration related to aging. The procedure intends that the woman may choose to have the eggs thawed, fertilized, and transferred to the uterus as embryos to facilitate a pregnancy in the future. The procedure's success rate varies depending on the age of the woman, with the odds being higher in younger, adult women.

<span class="mw-page-title-main">Fallopian tube obstruction</span> Medical condition

Fallopian tube obstruction, also known as fallopian tube occlusion is a major cause of female infertility. Blocked fallopian tubes are unable to let the ovum and the sperm converge, thus making fertilization impossible.

Religious response to assisted reproductive technology deals with the new challenges for traditional social and religious communities raised by modern assisted reproductive technology. Because many religious communities have strong opinions and religious legislation regarding marriage, sex and reproduction, modern fertility technology has forced religions to respond.

Unexplained infertility is infertility that is idiopathic in the sense that its cause remains unknown even after an infertility work-up, usually including semen analysis in the man and assessment of ovulation and fallopian tubes in the woman. It is usually an exercise in excluding all possible causes before making a diagnosis, however the age of the female partner as well as the duration of infertility are often the most scrutinized characteristics of any infertility case.

Natural Cycle In Vitro Fertilization (IVF) is an assisted reproductive technique designed to closely mimic a woman's natural menstrual cycle. In traditional IVF, a woman's ovaries are stimulated with fertility medications to produce multiple eggs, which are then retrieved and fertilized outside the body. A natural cycle IVF, on the other hand, works with the woman's natural hormonal fluctuations and ovulation cycle.

<span class="mw-page-title-main">Fertility testing</span>

Fertility testing is the process by which fertility is assessed, both generally and also to find the "fertile window" in the menstrual cycle. General health affects fertility, and STI testing is an important related field.

Partner-assisted reproduction, reception of oocytes from partner (ROPA), reciprocal IVF,shared motherhood, partner IVF or co-IVF is a method of family building that is used by couples who both possess female reproductive organs. The method uses in vitro fertilization (IVF), a method that means eggs are removed from the ovaries, fertilized in a laboratory, and then one or more of the resulting embryos are placed in the uterus to hopefully create a pregnancy. Reciprocal IVF differs from standard IVF in that two partners are involved: the eggs are taken from one partner, and the other partner carries the pregnancy. In this way, the process is mechanically identical to IVF with egg donation. Reciprocal IVF offers the highest chance for pregnancy and a lower chance of a multiple births.

References

  1. Edwards RG (October 2001). "The bumpy road to human in vitro fertilization". Nature Medicine. 7 (10): 1091–1094. doi: 10.1038/nm1001-1091 . PMID   11590421. S2CID   5123258.
  2. Asch RH, Ellsworth LR, Balmaceda JP, Wong PC (November 1984). "Pregnancy after translaparoscopic gamete intrafallopian transfer". Lancet. 2 (8410): 1034–1035. doi:10.1016/s0140-6736(84)91127-9. PMID   6149412. S2CID   33844752.
  3. Toner JP (November 2002). "Progress we can be proud of: U.S. trends in assisted reproduction over the first 20 years". Fertility and Sterility. 78 (5): 943–950. doi: 10.1016/s0015-0282(02)03769-x . PMID   12413976.
  4. Paulson R (2007). Assisted Reproductive Technology. VideoJug. Archived from the original on 11 February 2009.
  5. Brinsden PR. "Gift (Gamete Intrafallopian Transfer)". East Sussex, UK: CHILD: The National Infertility Support Network. Archived from the original on 7 February 2005.
  6. Diario Clarin, Buenos Aires, Argentina, Jueves 15 de Mayo, 1986
  7. "Gamete intrafallopian transfer (GIFT)". Loras College. Archived from the original on 24 July 2014.
  8. Haas JM. "Begotten Not Made: A Catholic View of Reproductive Technology" . Retrieved 27 September 2012.