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DR. GAYATHIRI GANESAN RAMMS(O.G) , FELLOW IN REPRODUCTIVE
MEDICINE AND ANDROLOGY.CONSULTANT INFERTILITY SPECIALIST
ARC FERTILITY CENTRE.
AN OVERVIEW OF INFERTILITY
INTRODUCTION
INFERTILITY can be considered a disease when health is defined as” the state of physical mental and social well being”.[WHO]
Distribution of infertility.
Male factor 40%
Female Factor40%
Unexplained 10%
Both Partners10%
INTRODUCTION
Approximately 15% of couples are unable to conceive after 1 year of unprotected intercourse.
Male factor is solely responsible in about 20% of infertile couples and contributory in another 30 -40% .
A PRACTICAL APPROACH TO INFERTILITY
Why to treat?Infertility is disease of the reproductive
system.Untreated infertility would lead to
depression and several other psychosomatic diseases.
A PRACTICAL APPROACH TO INFERTILITY
Untreated PCOD increases the risk of Endometrial cancer,breast cancer, diabetes mellitus, hypertension and hyperlipidemia..
Untreated, undescended testes increases the risk of testicular malignancy.
Untreated Infertility increases the risk of endometriosis
DEFINITION OF INFERTILITY
“…one year of well-timed and unprotected coitus without conception...”
Rein MS, Barbieri RL. 1999.
Rein MS, Barbieri RL
1999
MALE & FEMALE FACTORS ARE EQUAL
Nelson AL, Marshall JR. 2004.
Among couples with identifiable causes of infertility
40%
20%
40%Female Factors
MaleFactors
Unknown/Both
INFERTILITY NUMBERS ARE INCREASING
Greater number of older womenWomen delaying childbearing
Stephen EH, Chandra A. Fam Plan Perspect. 2000.Chandra A, Martinez GM, Mosher W, et al. 2005.
6.7 million5.5 million
1988 1995
7.3 million
2002
TYPICAL CONCEPTION TIMETABLES
Meldrum DR. Infertility. 1998
60%75%
90%
25%
1 month 6 months 9 months 18 months
PRIMARY AND SECONDARY INFERTILITY
Hatcher RA, Trussell J, Stewart F, et al. 1994Stewart GK. 1998
Secondary infertility
30%
Primary infertility
70%
Total Infertility Cases
Female: Has never conceivedMale: Has never impregnated a female
Despite having unprotected intercourse for at least 12 months:
Female: Has previously conceived but is subsequently unable to do so Male: Has previously impregnated a female but is subsequently unable to do so
EXCLUSION
Bilateral tubal blockageSevere tubal damage or diseaseDeclining ovarian function ( D2 FSH )Ovarian failure ( menopause )Severe male factor infertilityActive PID/ cervicitis/ vaginitis/ infection
in male partnerHIVSevere hypoplastic uterus
Infertility is a race against time.- Pandiyan 1997.
Time would indicate the age of the couple, particularly woman and the duration of infertilty.
FACTORS RELATED TO INFERTILITY
Reproductive knowledge Toxic agents
Coital timing, frequency Substance use
Douching, lubricants Medications
Age-related changes Surgery
Sexually transmitted diseases Radiation
Previous pregnancy Physical exertion/heat
Nutrition Uterine myomas
WHY PATIENT SELECTION IS IMPORTANT ?
Success rates depend on Age Duration of infertility Cause of infertility No. of quality of motile sperms Type of OHS
FREQUENCY & PROBABILITY OF CONCEPTION
Frequency of Intercourse
% Achieving PregnancyWithin 6 Months
<1x per week 17
1x per week 32
2x per week 46
3x per week 51
Hatcher RA, Trussell J, Stewart F, et al. Contraceptive Technology. 1994.MacLeod J, Gold RZ. Fertil Steril. 1953.
COITAL FREQUENCY AND CONCEPTION (FROM MACLEOD).
Weekly frequency Conception within 6 months (%).
< 1 171 to 2 322 to 3 463 to 4 51> 4 83
MALE FERTILITY & AGEAge-related decline.
Increased problems with sexual function .
Decreased coital frequency.
Diminished sperm output, morphology, & vitalityEdge V, Miller M. Women's Health Care. 1994.Ng KK, et al. Hum Repro. 2004.
AGE AND FERTILITY
Most important factor influencing a woman’s fertility.
Influences to some extent a man’s fertility also.
Incidence of Infertility is very low in teenagers – 6%.
Infertility is about 50% in the 40s.
FEMALE FACTORS Over age 35.Irregular menses.Severe progressive dysmenorrhea or
dyspareunia.Past IUD use.Past pelvic infection.Past surgery on an ovary, tube or uterus .Suspected damage to pelvic organs.
Stewart GK. 1998.
INFECTION SCREENING
HIVHepatitis BHepatitis CRubella ( for females )Chlamydia or other causes of PID ( in
women considered at risk )
ENDOCRINE DISRUPTING CHEMICALS
Environmental oestrogens and anti androgens are endocrine disrupting chemicals with adverse effect on male reproductive health.
DNA alone is not destiny.Environmental Endocrine Disrupting
Chemicals contamination have more control over the development of the offspring of exposed adults than the genes off springs inherit.
EDC also adversely disrupt human ovarian function.
ENDOCRINE DISRUPTING CHEMICALS
Bisphenol A – BPA and Phthalate are the commonest Endocrine disrupting chemicals.
These substances are ubiquitous in small amounts in water air and food.
Prenatal exposure to these chemicals can lead to impairment of male fertility.
Diethyl stilboesterol is an Endocrine disrupting chemical – DES syndrome.
Contamination with persistent endocrine disrupters may be a global problem relevant also to humans.
DOUCHING, LUBRICANTSDouching:May interfere with sperm reaching ovumIncreased incidence of ectopic pregnancy
Lubricants:May contain spermicidal agentsMay lead to decreased sperm motility
Stewart GK. 1998.
MACRO ENVIRONMENT
Atmospheric (air) pollution.Water contamination.Food contamination – You are what you eat,
what your mother ate and what your grandmother ate.
Electro magnetic radiation- Cell phones; lap tops.
Atomic energy.
OBESITY AND FERTILITY
In women:Obesity in childhood
advances puberty.In adulthood impairs
fertilityIn Men:Obesity in childhood
delays puberty.In adulthood - severe
forms impair fertility.
Risk ofovulatoryinfertility
FEMALE BODY WEIGHT & INFERTILITY
Barbieri RL. Am J Obstet Gynecol. 2001 .Stewart GK. 1998.
=17 kg/m2
30 kg/m2
TOBACCO USE & INFERTILITY
Stewart GK. 1998.Bouyer J, et al. Am J Epidemiology. 2003.
• Sperm production
• Motility• Morphology• Fertilization
capacity
• Decreased rates of conception
• Increased rates of miscarriage
• Increased risk of ectopic pregnancy
• Increased risk of placenta previa
• Negative effects on fetus
MICRO ENVIRONMENT
Body weight- Obesity -Positive influence on puberty in girls. Negative influence on puberty in boys.
Adults- Negative influence in both sexes.
Tobacco Negative influence in both sexes.
Alcohol Negative influence in both sexes.
All drugs are potentially gonadotoxic.
“Infertility Is a Race Against Time” (Pandiyan).
Age & Infertility :Female Partner’s ( Also Male Partner’s)
Age Is a Very Important Deciding Factor in the Success Rate.
Optimal success – (F) <30 years.Ideal fertile age – 20 – 25 years.Decline starts bet. 30- 35 years.Poor results > 40 years.
ALCOHOL USE & INFERTILITY
Decreased rates of conceptionIncreased rates of miscarriageOvulatory infertilityNegative effects on fetus
Stewart GK. 1998.
• Lower testosterone levels
• Decreased sperm production
• Impotence
Drugs
Narcotics, barbiturates
Decreases regularity and effectiveness of ovulation
Cause impotence, affect sperm productionPrescription
medications
Increased risk of fetal defects, fetal wastage
Chemotherapy Ovarian failure Testicular failure
Calcium channel blockers
Inhibit sperm production
MEDICATION USE & INFERTILITY
RADIATION & INFERTILITY
Stewart GK. 1998.
MaleTesticular damage
or cancer
Chromosomal aberrations
FemaleOvarian failure
Fetal wastage
Fetal damage
EVIDENCE BASED MANAGEMENT OF MALE INFERTILITY
FERTILITY
A couple’s fertility is the joint fertility of the man and the woman.
No man or woman is 100% fertile.If the man is sub fertile,( as in
Oloigozoospermia) woman’s enhanced fertility may compensate for that.
A woman’s sub fertility ( as in endometriosis) may be compensated by a man’s enhanced fertility.
MANAGEMENT OF MALE INFERTILITY
History: Crucial.Surgery -hernia, hydrocele, undescended
testes.Smoking- affects all semen parameters.Alcohol- affects all semen parameters and
sexual function- Shakespeare said ‘Alcohol provokes the desire but takes away the performance.’
Obesity.Drug Intake.
EVIDENCE BASED MANAGEMENT OF MALE INFERTILITY
Coital history.History of use of lubricants.Age and male reproduction.Anti sperm antibody.?Sperm function tests.?Post coital tests.?