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group_3_presentation_3_-_male_infertility [2018/11/30 22:51] premachu old revision restored (2018/11/30 21:46) |
group_3_presentation_3_-_male_infertility [2018/11/30 23:09] (current) premachu |
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| * Produced in low numbers | * Produced in low numbers | ||
| * Not produced at all | * Not produced at all | ||
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| + | (Mayo Clinic, n.d.) | ||
| === Varicoceles === | === Varicoceles === | ||
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| * Cancer | * Cancer | ||
| * Arthritis | * Arthritis | ||
| + | |||
| + | (Mayo Clinic, n.d.), (Eunice Kennedy Shriver National Institute of Child Health and Human Development, 2017) | ||
| ====== Environmental Causes ====== | ====== Environmental Causes ====== | ||
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| === Hormonal Profile === | === Hormonal Profile === | ||
| To rule out of major health concerns, a hormonal profile can be conducted. This purpose of this test is to determine how effective your testicles are at making sperm. This involves looking at hormones such as follicle-stimulating hormone. | To rule out of major health concerns, a hormonal profile can be conducted. This purpose of this test is to determine how effective your testicles are at making sperm. This involves looking at hormones such as follicle-stimulating hormone. | ||
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| + | <box width centre|> {{ :basic-diagnostic-tests-to-tell-if-a-man-is-fertile-570x242.png?nolink&300 |}}</box| Figure 5. Methods of diagnostic testing for male infertility.> | ||
| ====== Prevalence ====== | ====== Prevalence ====== | ||
| The actual rates of male infertility are unknown and are shown based on self-report as well as rates calculated from current literature (Kumar & Singh, 2015). Global male infertility rates are different amongst races simply due to the fact that some developing countries underreport their male infertility. This is the case especially in African countries because if a man is unable to reproduce they are seen as inferior. It is believed that to compensate for this, polygamy is practiced in order to increase their likelihood of impregnating a woman (Agarwal et al., 2015). In North America its estimated that 4.5-6% of males are infertile; of all infertility cases, approximately 40-50% are due to male infertility (Kumar & Singh, 2015). This can be attributed to low sperm concentration, poor sperm motility or abnormal sperm or even a combination of these deficiencies (Agarwal et al., 2015). | The actual rates of male infertility are unknown and are shown based on self-report as well as rates calculated from current literature (Kumar & Singh, 2015). Global male infertility rates are different amongst races simply due to the fact that some developing countries underreport their male infertility. This is the case especially in African countries because if a man is unable to reproduce they are seen as inferior. It is believed that to compensate for this, polygamy is practiced in order to increase their likelihood of impregnating a woman (Agarwal et al., 2015). In North America its estimated that 4.5-6% of males are infertile; of all infertility cases, approximately 40-50% are due to male infertility (Kumar & Singh, 2015). This can be attributed to low sperm concentration, poor sperm motility or abnormal sperm or even a combination of these deficiencies (Agarwal et al., 2015). | ||
| - | <box 65% round white centre|> {{ :12958_2015_32_fig2_html.jpg?nolink |}}</box| Figure 5. Out of the total infertility cases, estimated percentages due to males are reported.> | + | <box 65% round white centre|> {{ :12958_2015_32_fig2_html.jpg?nolink |}}</box| Figure 6. Out of the total infertility cases, estimated percentages due to males are reported.> |
| ====== Treatments ====== | ====== Treatments ====== | ||
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| === Transurethral Resection of the Ejaculatory Duct === | === Transurethral Resection of the Ejaculatory Duct === | ||
| Ejaculatory duct blockage can be treated surgically. A cystoscope is passed into the urethra and a small incision is made in the ejaculatory duct. This gets sperm into the semen in about 65 out of 100 men. But there can be problems. Blockages could come back. Incontinence and retrograde ejaculation from bladder damage are other possible but rare problems. Also, only 1 in 4 couples get pregnant naturally after this treatment (Urology Care Foundation, n.d.). | Ejaculatory duct blockage can be treated surgically. A cystoscope is passed into the urethra and a small incision is made in the ejaculatory duct. This gets sperm into the semen in about 65 out of 100 men. But there can be problems. Blockages could come back. Incontinence and retrograde ejaculation from bladder damage are other possible but rare problems. Also, only 1 in 4 couples get pregnant naturally after this treatment (Urology Care Foundation, n.d.). | ||
| - | <box width centre|> {{ :vasovasotomy.jpg?300 |}}</box| Figure 6. Vasoepididymostomy Procedure> | + | <box width centre|> {{ :vasovasotomy.jpg?300 |}}</box| Figure 7. Vasoepididymostomy Procedure> |
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| === Intracytoplasmic Sperm Injection (ICSI) === | === Intracytoplasmic Sperm Injection (ICSI) === | ||
| ICSI is a variation of IVF. It has revolutionized treatment of severe male infertility. A single sperm is injected into the egg with a tiny needle. Once the egg is fertilized, it's put in the female partner's uterus. It is used if you have very poor semen quality, or if you have no sperm in the semen caused by a block or testicular failure that can't be fixed. Sperm may also be taken from the testicles or epididymis by surgery for this method (Urology Care Foundation, n.d.). | ICSI is a variation of IVF. It has revolutionized treatment of severe male infertility. A single sperm is injected into the egg with a tiny needle. Once the egg is fertilized, it's put in the female partner's uterus. It is used if you have very poor semen quality, or if you have no sperm in the semen caused by a block or testicular failure that can't be fixed. Sperm may also be taken from the testicles or epididymis by surgery for this method (Urology Care Foundation, n.d.). | ||
| - | <box width centre|> {{ :icsi.jpg?300 |}}</box| Figure 7. ICSI Procedure> | + | <box width centre|> {{ :icsi.jpg?300 |}}</box| Figure 8. ICSI Procedure> |
| __**Sperm Retrieval for Assisted Reproductive Techniques**__ | __**Sperm Retrieval for Assisted Reproductive Techniques**__ | ||
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| - | <box width centre|> {{ :nup_167548_0084.jpg?nolink&300 |}} </box| Figure 8. Jimmy Fallon on his show.> | + | <box width centre|> {{ :nup_167548_0084.jpg?nolink&300 |}} </box| Figure 9. Jimmy Fallon on his show.> |
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| + | ====== Final Remarks ====== | ||
| + | Male infertility is an extremely common cause of infertility. For many couples suffering from infertility, a semen analysis is one of the highest yield tests performed during a comprehensive fertility evaluation. The results of a semen analysis alone are often insufficient to determine an optimal treatment path, and further targeted testing may be required. However, with the proper assisted reproduction treatments, the majority of men suffering from sperm production abnormalities will have an excellent chance of becoming a father. | ||
| ====== References ====== | ====== References ====== | ||
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| Cabler, S., Agarwal, A., Flint, M., & Du Plessis, S. S. (2010). Obesity: modern man's fertility nemesis. Asian journal of andrology, 12(4), 480. | Cabler, S., Agarwal, A., Flint, M., & Du Plessis, S. S. (2010). Obesity: modern man's fertility nemesis. Asian journal of andrology, 12(4), 480. | ||
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| + | Eunice Kennedy Shriver National Institute of Child Health and Human Development. (2017). What are some possible causes of male infertility? Retrieved December 1, 2018, from http://www.nichd.nih.gov/health/topics/infertility/conditioninfo/causes/causes-male | ||
| Gude, D. (2012). Alcohol and fertility. Journal of human reproductive sciences, 5(2), 226. | Gude, D. (2012). Alcohol and fertility. Journal of human reproductive sciences, 5(2), 226. | ||
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| Xu, H., Tanphaichitr, N., Forkert, P. G., Anupriwan, A., Weerachatyanukul, W., Vincent, R., ... & Wade, M. G. (2004). Exposure to trichloroethylene and its metabolites causes impairment of sperm fertilizing ability in mice. Toxicological sciences, 82(2), 590-597. | Xu, H., Tanphaichitr, N., Forkert, P. G., Anupriwan, A., Weerachatyanukul, W., Vincent, R., ... & Wade, M. G. (2004). Exposure to trichloroethylene and its metabolites causes impairment of sperm fertilizing ability in mice. Toxicological sciences, 82(2), 590-597. | ||
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