Title: in vitro fetilization
1in vitro fetilization
I
V
F
2Outline
- Definition
- Signs and symptoms
- Process of conception
- Types of infertility
- Causes of infertility
- Diagnostic studies
- Complication
- Treatment
- Prevention
- Summary
- References
3Definition
In vitro fertilization (IVF) is a procedure in
which eggs (ova) from a woman's ovary are
removed, they are fertilized with sperm in a
laboratory procedure, and then the fertilized egg
(embryo) is returned to the woman's uterus.
4Signs and symptoms
- Most men with fertility problems have no signs
or symptoms. - Some men with hormonal problems may note a
change in their voice - or pattern of hair growth, enlargement of
their breasts, or difficulty - with sexual function
- Infertility in women may be signed by irregular
menstrual periods - or associated with conditions that cause pain
during menstruation - or intercourse.
5Process of conception
Every month the pituitary gland in a woman's
brain sends a signal to her ovaries to prepare an
egg for ovulation. The pituitary hormones
follicle-stimulating hormone (FSH) and
luteinizing hormone (LH) are involved in
stimulating the ovaries to bring an egg to
ovulation.
A large boost in LH carries a message to the
ovarian follicle to release its egg (ovulate). A
woman is most fertile at the time of ovulation
around day 14 of her menstrual cycle although
the exact time of ovulation varies among women
due to different lengths of menstrual cycles.
6 The egg is then captured by a fallopian tube
and is viable for about 24 hours, but its best
chance of being fertilized is within the first 12
hours following ovulation. For pregnancy to
occur, a sperm must unite with the egg in the
fallopian tube during this time.
Sperm are capable of fertilizing the egg for up
to 72 hours and must be present in the fallopian
tube at the same time as the egg for conception
to occur. If fertilized, the egg moves into the
uterus two to four days later. There it attaches
to the uterine lining and begins a nine-month
process of growth.
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12Types of infertility
Infertility was divided into two types Type I
never achieving a recognized pregnancy, Type II
conception but no live birth. Infertility is
broken down into male factor, female factor.
13- Type of infertility common in lesbians? A new
study suggests that lesbians may be more likely
to suffer from a common cause of infertility
14DIAGNOSTIC STUDIES
- Hormonal Studies (Estradiol , FSH, LH , ...)
- Endometrial Biopsy
- Ultrasound Testing
- Laparoscopy
- Semen Analysis
- The Postcoital Test (PCT)
- Hysterosalpingogram (HSG)
15Causes of infertility
Female infertility
16- Annovulation lack of ovulation
- Oligoovulation infrequent ovulation
- Luteal phase defects
affect their ability to pick up the egg
Sexually transmitted diseases , Previous pelvic
infection , infection from internal organs
17- Previous ectopic pregnancy
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21Male infertility
22- no sperm in the ejaculate
- poor sperm quantity or quality
- Age
- Emotional stress
- smoking
23TREATMENT OF INFERTILITY
24Ovulation induction
- Clomid (Clomiphene)/ Tamoxifen Clomid blocks the
estrogen receptors on the hypothalamus causing
them to think there is estrogen deficiency - Bromocriptine / Cabergoline / Quinagolide reduce
prolactin secretion - hMG (pergonal, menogon) hMG contains both FSH
and LH hormones - FSH (metrodin) stimulates the ovaries to
produce multiple follicles . - LH (luteinizing hormone) Gonal F and Puregon
- hCG (profasi and pregnyl )
- pulsatile GnRh (Fertiral )
25 Complication
- Complications of being infertile often involve
strong emotions and may trigger negative feelings
between you and your partner. These may include
- Depression
- Guilt
- Anger
- Stress
- Disappointment
- Fear of losing partner because of infertility
- Diminished confidence and self-esteem
26Prevention
- For male
- Most types of male infertility aren't
preventable. However, avoid drug and tobacco use
and excessive alcohol consumption, which may
contribute to male infertility. Also, high
temperatures can affect sperm production and
motility - For female
- A woman can increase her chances of becoming
pregnant in a number of ways - Exercise moderately
- Avoid weight extremes
- Avoid alcohol, tobacco and street drugs
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33References
- www.ansewr.com
- Boggs, William M., and Rosella D. Smith. The
Journey to Fertility A Couple's Guide to In
Vitro Fertilization. Timonium, MD Wilrose Books,
2001 - http//www.emedicin.com/emerg/topic507.htm
- http//www.umm.edu/ency/article/001600.htm
- Burroughs.A,etal.(2001)8th maternity nursing, an
introductory text. W.B. Saunders company.
Philadelphia London new York st. Louis