Содержание
- 2. Introduction
- 4. Definitions & Terminology Fertility: the capacity to reproduce or the state of being fertile. Fecundability: the
- 5. Definitions & Terminology Infertility: one year of unprotected coitus without conception. Primary infertility: couple who has
- 6. Epidemiology Fecundability rate in the general reproductive-aged population is fairly constant and is approximately 0.22 per
- 7. Fecundability 20-25% of couples will conceive/cycle. 50% should conceive after 3-4 months. 95% should conceive after
- 8. Infertility Affects 1 in 6 married couples of childbearing age Primary infertility : 58.6%. Secondary infertility:
- 9. Etiology of Infertility
- 10. Requirements for Normal Reproduction Release of a normal preovulatory oocyte. Production of adequate spermatozoa. Normal transport
- 11. Female Factor Infertility Female factor infertility can be divided into several categories: Cervical factor infertility Uterine
- 12. Cervical factor infertility Account for 5-10% of infertility. Can be caused by: Cervical stenosis Abnormalities of
- 13. Cervical mucus production and characteristics It changes according to the estrogen concentration during the late follicular
- 15. Cont,,, Secretion ↑ in mid follicular phase and reaches its maximum 24-48h before ovulation. Water and
- 17. Cont,,, The mucus organizes itself, forming multiple microchannels so the spermatozoa can travel through. Spermatozoa simultaneously
- 18. Cont,,, Mucus secretion may be altered by hormonal changes and medications, especially drugs like clomiphene citrate,
- 19. Cont,,, Cervical stenosis can cause infertility by blocking the passage of sperm from the cervix to
- 21. Uterine factor infertility May be associated with primary infertility or with pregnancy wastage and premature delivery.
- 22. Congenital defects The full spectrum of congenital/müllerian abnormalities varies from: Total absence of the uterus and
- 23. The most common uterine malformations observed during the past 40 years were drug induced. From the
- 24. Ddiethylstilbestrol (DES) DES was found to be responsible for inducing malformations of the uterine cervix, irregularities
- 25. Premature delivery has been associated with cervical incompetence. Unicornuate uterus associated with a blind horn, and
- 26. Acquired defects Endometritis associated with a traumatic delivery, dilatation and curettage, intrauterine device, or any instrumentation
- 27. Cont,,, Placental polyps may develop from placental remains. Intrauterine and submucosal fibroids are very common, affecting
- 28. Ovarian factor infertility Ovulatory dysfunction is defined as an alteration in the frequency and duration of
- 29. Tubal factors infertility Abnormalities or damage to the fallopian tube interferes with fertility and is responsible
- 30. Other tubal factors associated with infertility are either congenital or acquired. Congenital absence of the fallopian
- 31. Advanced age The prevalence of infertility rises dramatically as age increases. Fertility decreases with marriage duration
- 32. Peritoneal Factor Infertility Pelvic inflammatory disease Associated with gonorrhea and chlamydia infection . The rate of
- 33. Endometriosis Remains an enigmatic disease that affects women during their reproductive years. The evolution of the
- 35. Approach To Infertility and Evaluation of Infertile Couple
- 36. General Guidance on Evaluation of Infertility Infertility is a problem that involves both partners. The consultation
- 37. History Type of infertility (primary or secondary) Detailed history of previous pregnancies Specific questions: Frequency of
- 38. Female: menstrual history frequency patterns since menarche.
- 39. Male: semen analysis results history of impotence premature ejaculation change in libido history of testicular trauma
- 40. Ask the couple about: surgical contraception weight changes Lifestyle exercise medical treatment Smoking
- 41. Physical Body Mass Index skin evaluation of hair distribution Malformed face or limbs (congenital abnormalities) visual
- 42. Comprehensive Evaluation of Infertility Cervical factors Uterine factors Tubal and peritoneal factors Ovarian factors
- 44. Cervical factors Congenital: Severe stenosis Inflammatory: chronic cervicitis Neoplastic causes: Cervical polyp or cervical fibroid. Cervical
- 46. Cervical factors The postcoital test: evaluating the amount of spermatozoa and its motility within the cervical
- 47. Uterine factors Congenital causes: Uterine aplasia, hypoplasia, septate uterus. Inflammatory causes: Tuberculous endometritis. Neoplastic causes: Fibroid
- 48. HSG pelvic ultrasonography Hysteroscopy MRI
- 49. Hysterosalpingogram To evaluate: endocervical canal diameter and configuration of the internal os endometrial cavity uterine/tubal junction
- 50. The HSG should be performed during the early follicular phase. At this time, the endometrium is
- 52. T-shaped uterus
- 53. Endometrial biopsy
- 54. Tubal and peritoneal factors Congenital: aplasia or hypoplasia of the fallopian tube. Traumatic causes: Tubal ligation
- 55. Laparoscopy hysterosalpingogram
- 57. Ovarian factors Menstrual history Basal body temperature Hormone levels Blood levels of the hormone progesterone are
- 60. Evaluation of the Male Partner Semen analysis: The basic semen analysis assesses sperm concentration motility Morphology
- 61. Volume - 2-5 mL pH level - 7.2-7.8 Sperm concentration - 20 million or greater Motility
- 62. Interpretation of semen analysis Azoospermia indicates absence of sperm Oligozoospermia indicates a concentration of fewer than
- 63. Kruger criteria If the initial semen analysis is abnormal, the clinician will often request an additional
- 64. Teratospermia
- 65. Blood tests: to measure total testosterone, LH , FSH and prolactin may be ordered. Genetic tests:
- 66. Other tests If a blockage in the reproductive tract is suspected, a transrectal ultrasound test may
- 67. Infertility Treatment
- 68. Treatment of infertility depends on the cause, diagnosis, duration of infertility, age of the partners and
- 69. Restoring fertility: These approaches can involve steps related to the male or to the female, or
- 70. Treatment for men General sexual problems: Addressing impotence or premature ejaculation can improve fertility. Treatment for
- 71. Treatment for women Stimulating ovulation with fertility drugs: Fertility drugs are the main treatment for women
- 72. Commonly used fertility drugs include: Clomiphene citrate (Clomid, Serophene): Taken orally and stimulates ovulation in women
- 73. Human menopausal gonadotropin, or hMG (Repronex): This is an injected medication is for women who do
- 74. Follicle-stimulating hormone, or FSH (Gonal-F, Follistim, Bravelle): FSH works by stimulating the ovaries to mature egg
- 75. Gonadotropin-releasing hormone (Gn-RH) analogs: This treatment is for women with irregular ovulatory cycles or who ovulate
- 76. Letrozole (Femara): A class of medications called aromatase inhibitors, which are approved for treatment of advanced
- 77. Metformin (Glucophage): Oral drug taken to boost ovulation. It is used when insulin resistance is a
- 78. Bromocriptine: This medication is for women whose ovulation cycles are irregular due to elevated levels of
- 79. Fertility drugs and the risk of multiple pregnancies: Injectable fertility drugs increase the chance of multiple
- 80. The greater the number of fetuses, the higher the risk of premature labor. Babies born prematurely
- 81. If a woman requires an HCG injection to trigger ovulation, and ultrasound exams show that too
- 82. Surgery Depending on the cause, surgery may be a treatment option for infertility. Blockages or other
- 83. Assisted reproductive technology (ART)
- 84. Assisted reproductive technology (ART) ART has revolutionized the treatment of infertility. An ART health team includes
- 85. In Vitro Fertilization
- 86. Historical Perspective The first successful human IVF attempt resulted in the 1978 delivery of Louise Brown
- 87. Definition: In Vitro Fertilization is commonly referred to as IVF. It is the process of fertilization
- 88. When the IVF procedure is successful, the process is combined with a procedure known as embryo
- 89. Indications: Failed other treatments Tubal damage Significant male factor Absent uterus Carriers of genetic diseases Family
- 90. Method: There are basically five steps in the IVF and embryo transfer process which include the
- 91. 1. Ovarian stimulation Treatment cycles are typically started on the third day of menstruation. It consists
- 92. Typically approximately 10 days of injections will be necessary. Spontaneous ovulation during the cycle is typically
- 93. 2. Egg retrieval When follicular maturation is judged to be adequate, human chorionic gonadotropin (hCG) is
- 94. The eggs are retrieved from the patient using a transvaginal technique.
- 95. Through this needle follicles can be aspirated, and the follicular fluid is handed to the IVF
- 96. Ultrasound photo shows multiple follicles (black structures) in a stimulated ovary The egg aspiration procedure in
- 97. 3. Fertilization In the laboratory, the identified eggs are stripped of surrounding cells and prepared for
- 98. In most cases, the egg will be fertilized by that time and the fertilized egg will
- 99. Picture of IVF egg showing fertilization process
- 100. 1. About to inject the egg with a sperm 2. Needle is advanced to the left
- 101. 4. Selection Typically, embryos that have reached the 6-8 cell stage are transferred three days after
- 102. Embryo picture of a "perfect" looking 8-cell embryo (day 3 embryo) This 5-cell embryo is moderately
- 103. 5. Embryo transfer Embryos are graded by the embryologist based on the number of cells, evenness
- 104. In countries such as the UK, Australia and New Zealand, a maximum of two embryos are
- 105. The embryos judged to be the "best" are transferred to the patient's uterus. During the embryo
- 106. What Happens to the Other Embryos? Freeze Embryos Donate For Research/Stem Cells Embryo Adoption Discard!
- 107. Pregnancy Rates For IVF, it is the percentage of all attempts that lead to pregnancy. With
- 108. Complications The major complication of IVF is the risk of multiple births. Multiple births are related
- 109. A double blind, randomized study followed IVF pregnancies that resulted in 73 infants (33 boys and
- 110. Another risk of ovarian stimulation is the development of ovarian hyperstimulation syndrome. In 2008, an analysis
- 111. Special IVF Procedures PGD PGD (Preimplantation Genetic Diagnosis) can be performed on embryos before the embryo
- 112. Special IVF Procedures ZIFT In the process of ZIFT (Zygote Intrafallopian Transfer), eggs are removed from
- 113. References: Hacker & Moore's Essentials of Obstetrics and Gynecology www.emedicine.medscape.com/article/274143-overview http://www.mayoclinic.com/health/infertility/ds00310 UpToDate www.ncbi.org http://en.wikipedia.org/wiki/Infertility
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