Male infertility

1. MMaallee IInnffeerrttiilliittyy
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2. DDeeffiinniittiioonn
• inability to conceive after 1 year of
unprotected sexual intercourse.
• 15% of couples. 40%: male; 40%:
female; 20%: both
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3. Hypothalamic- PPiittuuiittaarryy-- GGoonnaaddaall AAxxiiss
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4. TTeessttiiss ffuunnccttiioonn
• Endocrine: testosterone, 2% free, 98% bound to
sex hormone binding globulin (SHBG).
• Estrogen, thyroid hormone: decrease SHBG,
increase free T;
• Androgen, growth hormone, obesity: on the
contrary
• Exocrine: sperm
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5. SSppeerrmmaattooggeenneessiiss
• Sertoli cell: tight junction. The strongest
intercellular barriers in the body: blood-testis
barrier; nurse cells
• Germ cells: spermatogonia; primary
spermatocytes; secondary spermatocytes,
spermatid. Mitosis and meiosis
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9. ccyycclleess
• within the human testis, 60 days;
sperm maturation: 10-15 days
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10. FFeerrttiilliizzaattiioonn
• Middle of the female menstrual cycle,
the cervical mucus changes
• Acrosome reaction, zona reaction
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13. DDiiaaggnnoossiiss ooff mmaallee iinnffeerrttiilliittyy
History
• Duration of infertility; earlier pregnancies
• Sexual history, timing and frequency, lubricants
• Medical and surgical history
• fever, acute infection, surgical procedure of bladder,
retroperitoneum, pelvis, hernia
• Childhood diseases: mumps, cryptorchidism
• Medication, pesticides, radiation, tobacco,
cocaine, marijuana, androgenic steroids, hot tubs
or saunas
• Family history
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14. PPhhyyssiiccaall eexxaammiinnaattiioonn
• Virilize: body hair, gynecomastia
• Scrotal contents
• Testis: size and consistency
• Epididymis; vas deferens; varicocele
• Other abnormalities
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15. LLaabboorraattoorryy tteessttss
• Urinalysis
• Semen analysis
• Semen collection: 48-72 hours of sexual
abstinence.
• Seminal fructose and postejaculate
urinalysis
• Fructose: derived from the seminal vesicle
• Hormone assessment
• FSH and testosterone
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18. AAddjjuunnccttiivvee tteessttss
• semen leukocyte analysis;
• antisperm antibody test;
• hypoosmotic swelling test;
• sperm penetration assay;
• sperm chromatin structure;
• chromosomal studies;
• genetic analysis
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19. • Radiologic testing
• scrotal ultrasound, transrectal ultrasound
• CT scan or MRI of the pelvis
• Testis biopsy & vasography
• Fine-needle aspiration ‘mapping’ of the
testes
• Semen culture
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20. MMaappppiinngg ooff tteesstteess
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22. CCaauusseess ooff mmaallee iinnffeerrttiilliittyy
• Pretesticular
• Testicular
• posttesticular
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23. Pretesticular ccaauusseess ooff iinnffeerrttiilliittyy
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24. Testicular ccaauusseess ooff iinnffeerrttiilliittyy
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25. Medications aassssoocciiaatteedd wwiitthh iinnffeerrttiilliittyy
• Ketoconazole, spironolactone, alcohol inhibit T
synthesis
• Cimetidine: androgen antagonist
• Marijuana, heroin, methadone: lower T levels
• Pesticides, estrogen like activity
• Chemotherapy
• Calcium channel blockers; sulfasalazine;
colchicine; allopurinol; alpha-blockers;
nitrofurantoin; antipsychotics; antidepressants
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26. vvaarriiccoocceellee
Normal: 15%;
infertility: 40%
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27. Posttesticular ccaauusseess ooff iinnffeerrttiilliittyy
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30. Posttesticular ccaauusseess ooff iinnffeerrttiilliittyy
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31. Treatment of male iinnffeerrttiilliittyy ((SSuurrggiiccaall
ttrreeaattmmeennttss))
• Varicocele:
• Vasovasostomy or epididymovasostomy
• Ejaculatory duct obstruction: TURED
• Electroejaculation spinal cord injury; pelvic or
retroperitoneal surgery injured the pelvic sympathetic
nerves.
• Sperm aspiration: vas deferens, epididymis, or testicle.
• Orchidopexy: within two years of age
• Testicular torsion; the unaffected, contralateral testis can
become infertile after torsion of its mate. Sympathetic
orchidopathia, immunologic in nature.
• Pituitary ablation
• Elevated serum prolactin levels stemming from a pituitary
adenoma can be treated medically and surgically.
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32. Surgical mmaannaaggeemmeenntt ooff mmaallee
iinnffeerrttiilliittyy
• Testis biopsy
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33. Surgical mmaannaaggeemmeenntt ooff mmaallee
iinnffeerrttiilliittyy
• Vasography:
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34. Surgical mmaannaaggeemmeenntt ooff mmaallee
• Vasography
iinnffeerrttiilliittyy
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35. Surgical mmaannaaggeemmeenntt ooff mmaallee
iinnffeerrttiilliittyy
• Vasovasostomy
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36. Surgical mmaannaaggeemmeenntt ooff mmaallee
iinnffeerrttiilliittyy
• Vasovasostomy
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37. Surgical mmaannaaggeemmeenntt ooff mmaallee
iinnffeerrttiilliittyy
• Vasoepididymostomy
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38. Surgical mmaannaaggeemmeenntt ooff mmaallee
iinnffeerrttiilliittyy
• Transurethral resection of the ejaculatory ducts
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39. Treatment of male iinnffeerrttiilliittyy ((NNoonnssuurrggiiccaall
ttrreeaattmmeennttss))
• Pyospermia: evaluate the patient for sexually
transmitted diseases, penile discharge,
prostatitis, or epididymitis
• Coital therapy
• Immunologic infertility
• Corticosteroid suppression, sperm washing, IUI,
IVF, and ICSI.
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40. MMeeddiiccaall tthheerraappyy
• Hyperprolactinemia; hypothyroidism; congenital
adrenal hyperplasia; testosterone excess/
deficiency: Kallmann syndrome, HCG, FSH
• Empiric medical therapy
• clomiphene citrate: antiestrogen, increase
secretion of GNRH, FSH, and LH. Low sperm
count
• antioxidant therapy: vit E
• growth hormone
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41. Assisted reproductive tteecchhnnoollooggiieess
• Intrauterine insemination (IUI): Cervical factors; low sperm
quality, immunologic infertility, poor sperm delivery. At
least 5-40 million motile sperm in the ejaculate
• In Vitro Fertilization and Intracytoplasmic sperm injection
• IVF: controlled ovarian stimulation and ultrasound-guided
transvaginal egg retrieval from the ovaries before normal
ovulation. 500,000 to 5 million sperms are required
• ICSI: one viable sperm
• Eliminate many natural selection barriers that exist during
natural fertilization, genetic defects that caused the
infertility are expected to be passed on to offspring
unabated.
• Preimplantation genetic diagnosis
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42. ICSI IVF IUI
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