CONTRACEPTION
contraception
historical and social
perspectives
sharing responsibility &
choosing a method
hormone-based
contraceptives
barrier methods
intrauterine
devices
emergency contraception
fertility awareness methods
sterilization
less-than-effective
methods
new directions in
contraception
1870s
– Comstock laws
dissemination of contraceptive information through U.S. mail prohibited
(as obscene)
1915
– Margaret Sanger opened an illegal clinic
where women could obtain and learn to use diaphragms she had
shipped from Europe
[picture of
Margaret Sanger talking to other women]
Margaret
Sanger and her sister in court in 1916
after police arrested her and closed her first birth control
clinic
she was arrested 8x
preachers called her a “lascivious monster” bent on murdering unborn
children
[picture of
Margaret and her sister in court]
July 1912 Nurse Sanger visited a cramped flat in New
York.
Sadie Sachs, 28, a mother of three, was near death as
a result of a self-induced abortion.
She pleaded with Nurse Sanger and the doctor:
“Another baby will finish me. What can I do to prevent it?”
The doctor’s gruff reply: “Tell Jake to sleep on the
roof.”
Three months later, Sadie Sachs was dead - of another
self-induced abortion.
Margaret Sanger had a cause.
1960 – The first birth control pills
came on the U.S. market.
[picture of
women in line waiting to receive pills]
U.S. Supreme Court: (1965)
Griswold v. Connecticut, 381 U.S. 479
Griswold was convicted as an accessory
for giving married persons
information and medical advice on how to prevent conception
and for prescribing a contraceptive device for the wife’s use
she was fined $100 (she could have been jailed for a year)
[pictures of
Estelle Griswold]
U.S. Supreme Court:
Eisenstadt v. Baird, 405 U.S. 438 (1972)
William Baird was convicted of giving a
single woman a contraceptive foam
at the close of a lecture to Boston University students
William Baird was sentenced to three
months in the Charles street jail (a dungeon built in 1851).
His case took 5 years & 6 court
cases before he won in the Supreme Court.
[picture of
Bill Baird]
reasons for
couples to use contraception
establish their relationship
with each other first
establish financial stability
first
establish career first
space the pregnancies
improving maternal and child health
limit the size of their
family
avoid bearing children
with hereditary diseases or birth defects
reduce the problem of
overpopulation
reduce the devastation of
the AIDS epidemic
optimum spacing of pregnancies
1970 Study in UK:
13% of babies
with dangerously low birth weight or death soon after birth
could be accounted for by a pregnancy too
close after the previous one.
The classic
2-year age gap between children was associated with the healthiest
outcome for each baby.
1981 WHO study
(Australia / Hawaii / Pakistan / Egypt / Saudi Arabia):
There was increased
risk to the health of a second or subsequent baby
when the interval between pregnancies was less
than 1 year.
US survey of 1
million births:
3-fold increase in risk for a baby born with a low
birth weight
if it was conceived 3 months after
the previous birth compared to 2 years later
optimum spacing of pregnancies
Pakistan Survey:
60% of pregnancies conceived within a
year of the last one ended in miscarriage
Turkey Study:
37% of pregnancies conceived less than 4
months after the last pregnancy were lost
Method Failure
Rate* If Typical
Number* .
Used Correctly Who
Become .
And
Consistently Pregnant
Accidentally
No Method 85 85
Estrogen-progestin
pills 0.3 8
Condoms (male) 3 16
Fertility
awareness 9 20
*Number of women
out of 100
who become pregnant by the end of the first year of using a particular
method.
Backup Method: Using
a second contraceptive method simultaneously with a first improves the odds of
preventing pregnancy.
“OUTERCOURSE”
noncoital forms
of sexual intimacy
includes kissing, touching,
petting, mutual masturbation, oral and anal sex
effective at preventing pregnancy
provided the male does not ejaculate near the vaginal opening
does not eliminate
chances of spreading STDs
oral contraceptives (“the
pill”)
are the reversible
method of birth control
most commonly used by
U.S. women
including college age women
[pictures of contraceptive
pills]
“the Pill” - 4 basic types:
constant-dose combination pills
Seasonale
multiphasic pills (triphasic)
progestin-only pills
[pictures of
contraceptive pills]
constant-dose combination pills - birth control pills that
contain a constant daily dose of estrogen and
progestin
Example: Ortho-Novum 1/35
0000000 1mg
norithendrone plus 0.035mg ethinyl
estradiol
0000000 1mg
norithendrone plus 0.035mg ethinyl
estradiol
0000000 1mg
norithendrone plus 0.035mg ethinyl
estradiol
ooooooo no hormones (placebo pills)
Seasonale
– birth control pills that contain a constant daily dose
of estrogen and progestin to be taken for 3 months
0000000 0000000 0000000 – 0.15mg
levonorgestrel and 0.03mg ethinyl
estradiol
0000000 0000000 0000000 – 0.15mg
levonorgestrel and 0.03mg ethinyl
estradiol
0000000 0000000 0000000 – 0.15mg
levonorgestrel and 0.03mg ethinyl
estradiol
0000000 0000000 0000000 – 0.15mg
levonorgestrel and 0.03mg ethinyl
estradiol
ooooooo – no hormones (placebo
pills)
multiphasic pills – birth control pills that vary the dosages
of estrogen and progestin during the cycle
Example: Ortho-Novum
7/7/7 (triphasic)
0000000 – 0.5mg norethindrone
plus 0.035mg ethinyl estradiol
XXXXXXX – 0.75mg norethindrone
plus 0.035mg ethinyl estradiol
ooooooo – 1mg norethindrone plus 0.035mg ethinyl estradiol
******* -- no hormones (placebo pills
progestin-only pills – contraceptive pills that
contain a small dose of progestin and no estrogen
Example: Ovrette
0000000 – 0.075mg norgestrel
0000000 – 0.075mg norgestrel
0000000 – 0.075mg norgestrel
0000000 – 0.075mg norgestrel
how oral contraceptives work
= how estrogen works
= how progesterone works
estrogen
affects hypothalamus
inhibits release of LH and FSH
inhibits ovulation
[picture of
biological events of menstrual cycle]
progestin
thickens and chemically alters the cervical mucus
so that it hampers the passage of sperm into the uterus
[picture of
location in uterus where mucus could hamper sperm entry]
progestin
changes the lining of the uterus
making it less receptive to implantation by a fertilized egg
[picture of
biological events of menstrual cycle]
progestin
may inhibit ovulation
by mildly disturbing hypothalamic, pituitary, and ovarian
function
[picture of
biological events of menstrual cycle]
COCs Mechanism of Action: Ovulation
Suppression
Normal
Menstrual Cycle
[picture of
follicle size changes
picture of LH & FSH blood level changes
picture of estrogen & progesterone blood level changes]
Cycle
Modified by COCs
[picture of
follicle size staying the same
picture of LH & FSH blood level not changing much
picture of estrogen & progesterone blood level not changing
much]
COCs Mechanism of Action: Mucus and
Endometrial Changes
Normal
Menstrual Cycle
[picture of
follicle size changes
picture mucus changes
picture of endometrial thickness changes]
Cycle
Modified by COCs
[picture of
follicle size staying the same
picture of mucus not changing much
picture of endometrial thickness not changing much]
Contraceptive
Technology Update (CTU)
MAQ
Exchange
U.S. Agency for International
Development (USAID)
Office of Population and Reproductive
Health
Maximizing Access and Quality
Initiative (MAQ)
pill users should take the pill at the same time every day to maximize effectiveness
missing
one or more pills can lower hormone levels and allow ovulation to occur
vomiting and diarrhea may mean that the pill does not get absorbed adequately
other medications
can interfere with the effectiveness of OCPs:
Barbiturates, Ampicillin,
Tetracycline, Antihistamines, Tegretol, Dilantin, Rifampin, Phenylbutazone
if you have any questions – use a backup method!
advantages of oral contraceptives
often eliminates Mittelschmerz
reduces menstrual cramps
reduces the amount and duration of flow
may diminish premenstrual tension symptoms
helps relieve endometriosis
may decrease benign breast disease
decreases risk of endometrial and ovarian cancer
may enlarge breasts
may decrease acne
COCs Provide Endometrial Cancer
Protection
COCs reduce risk by more than 50%
Protection develops after 12 months of
use and lasts for at least 15 years
Lifetime risk of acquiring endometrial
cancer
Number per 100 women
United States
xxxxxxxxxxxx 3.1 Non COC user
xxxx 1.2
COC users (8+ years of use)
Costa Rica
xxx 0.7
Non COC user
x 0.3
COC users (8+ years of use)
China
xx 0.4
Non COC user
x 0.1
COC users (8+ years of use)
COCs Provide Ovarian Cancer Protection
COCs reduce risk by more than 50%
Protection develops after 12 months of
use and lasts for at least 15 years
Lifetime risk of acquiring ovarian
cancer
Number per 100 women
United States
xxxxxxx 1.7 Non COC user
xxx 0.7
COC users (8+ years of use)
Costa Rica
xx 0.6
Non COC user
x 0.2
COC users (8+ years of use)
China
xx 0.6 Non COC user
x 0.2
COC users (8+ years of use)
disadvantages of oral contraceptives
does not protect against AIDS and other STDs
serious problems
may occur: gallbladder disease, liver tumors,
blood clots (in lungs, in legs, or elsewhere), strokes, heart
attacks, migraine headaches
depression may increase or decrease
irregular and “break-through” bleeding may occur
side effects such as nausea, fluid retention, increased
appetite, acne may occur
[picture of
contraceptive pills]
COC Use and Estimated Annual Mortality
Rates of CVD
[bar graph
showing highest risk for older women who smoke and use COCs]
COC = Combined Oral Contraceptives
RISKS OF ORAL CONTRACEPTIVE USE
risk in OC users compared to nonusers
data from Lunelle Prescribing guide
provided by PHARMACIA
Heart Attack 2x-6x
1st episode superficial
thrombosis 3x
Deep vein thrombosis or pulmonary
embolism 4-11x
Thrombotic stroke
Normotensive 3x
Severe
hypertension 14x
Hemorrhagic stroke
Nonsmoker
+ OCP 1.2x
Smoker
– OCP 2.6x
Smoker
+ OCP 7.6x
Normotensive 1.8x
Severe
hypertension 25.7x
RISKS OF ORAL CONTRACEPTIVE USE
risk in OC users compared to nonusers
data from Lunelle Prescribing guide
provided by PHARMACIA
DMPA and breast cancer 1.1 – 2.2x
Benign hepatic adenoma 3.3 cases / 100,000 cases
(attributable risk)
Hepatocellular carcinoma <1
/ million users
(attributable risk)
Number of deaths per year per 100,000
non-sterile women
Adapted from Ory
HW 1983 as printed in Lunelle Prescribing guide provided
by PHARMACIA
Method 20-24 25-29 35-39 40-44 .
None 7.4 9.1 25.7 28.2 birth-related deaths
OCP 0.5 0.9 13.8 31.6 method-related deaths
Nonsmoker
OCP 3.4 6.6 51.1 117.2 method-related deaths
Smoker
Condom 1.6 0.7 0.3 0.4 birth-related deaths
Diaphragm 1.2 1.2 2.2 2.8
birth-related deaths
Contraceptive
Technology
reference book for:
physicians, nurses, midwives, counselors, administrators, students
Dr. Karen Trewinnard,
B.M., M.F.F.P.,
worked as a doctor for 20 years
specializes in fertility awareness
runs a preconception planning clinic in Portsmouth, England.
Fertility
& Conception
© 1999
[pictures of
book covers]
voluntary risks in perspective
activity_________________chance of death / year
motorcycling 1
in 1,000
automobile driving 1
in 6,000
using tampons 1
in 350,000
having intercourse (PID) 1 in 50,000
nonsmoker using OCPs 1 in 63,000
smoker using OCPs 1
in 16,000
laparoscopic tubal ligation 1 in 67,000
vasectomy 1
in 300,000
continuing pregnancy 1 in 14,300
illegal abortion 1 in 3,000
legal abortion <9 wks 1
in 500,000
legal abortion 9-12 wks 1 in 67,000
legal abortion 13-15 wks 1 in 23,000
legal abortion >15 wks 1 in 8,700
C.T. p. 146
ESTROGEN SIDE EFFECTS
nausea
breast tenderness
increased breast size (ductal and fatty
tissue)
fluid retention & cyclic weight
leukorrhea (whitish discharge from vagina & uterus)
cervical extrophia (endocervical
lining extends to outer cervix)
headaches
thromboembolic complications (traveling blood clots)
pulmonary emboli (blood clots in lung vasculature)
hepatocellular adenomas (non-cancerous liver tumors)
hepatocellular cancer (liver cancer)
growth of leiomyomata (non-cancerous
uterine tumors)
telangiectasia (spidery looking blood vessels: skin etc)
PROGESTIN SIDE EFFECTS
increased appetite & weight gain
depression, fatigue, tiredness
decreased libido and enjoyment of intercourse
acne, oily skin
headaches
increased breast size (alveolar tissue)
increased LDL cholesterol levels (“bad cholesterol”)
decreased HDL cholesterol levels (“good cholesterol”)
diabetogenic effect (producing diabetes)
decreased carbohydrate tolerance
pruritis (itching)
(note based on
other sources: may decrease bone mineral density)
both ESTROGEN and PROGESTIN contribute to:
headaches
hypertension
(high blood pressure)
myocardial infarction
(heart attack)
cervical dysplasia
(abnormal changes in the cervical cells)
ORAL CONTRACEPTIVES
Progestin(mg) Estrogen
(mcg)
Combination Loestrin 1/20 1 20
Monophasic Ortho-Novum 1/35 1 35
Lo/Ovral 0.3 30
Demulen 1/50 1 50
Combination Ortho-Novum 10/11 0.5/1 35
Biphasic Mircette 0.15/0 20/10
Combination Orto-Novum 7/7/7 0.5/0.75/1 35
Triphasic Triphasil 0.05/0.075/0.125 30/40/30
Combination Estrostep Fe 1 20/30/35
Estrophasic
Progestin Micronor 0.35 0
Only Ovrette 0.075 0
Seasonale
FDA approved – became available Oct
2003
84 active pills in a row
7 placebos
result: 4 periods / year
side effects:
breast tenderness
blood clots
breakthrough bleeding
(7.5% quit because of this
compared to 1.8% on conventional pill)
method failure
rate
best typical
estrogen-progestin 0.3
8 $384 - $516 /y*
pills (incl. Seasonale)
($32 - $43 /cycle)
progestin-only 0.3 8 $384 - $456 /y*
pills
($32 - $38 /cycle)
*1 year with 100 occurrences of
intercourse
self reported missed pills
50% forget 1 or more pills / cycle
22% forget 2 or more pills / cycle
electronically tracked pills
50% missed 3 or more pills / cycle
disposable ring inserted on or about day 5 of the menstrual cycle and
worn continuously for 3 weeks.
failure rate as good or better than oral contraceptives.
Website:
www.nuvaring.com
[picture of Nuvaring]
OrthoEvra
application sites: buttocks, abdomen, torso (excluding breasts), upper
outer arm
adhesion data:
<2% of patches fell off
<3% of patches partially lifted
[picture of
woman wearing patch]
Patch: Ethinyl
Estradiol-Norelgestromin: 0.02mg-0.150mg/24hrs
apply patch to clean, dry, intact skin
on buttock, abdomen, upper arm or upper torso
start on first day of menses or first Sunday after menses begins
a new patch is applied each week on the same day for 3 weeks
(21 total days)
week four is patch free
[picture of
Ortho Evra product]
five of the fifteen pregnancies reported with Ortho Evra
were among women with a baseline body weight > or = 198
lbs (90kg)
suggesting that the patch may be less effective in these women
[picture of
Ortho Evra product]
method failure
rate
best typical
vaginal ring 0.3 8
$580 /y*
Nuvaring
skin patch 0.3 8 $420 /y*
Ortho Evra
*1 year with 100 occurrences of intercourse
Norplant - 6 capsules implanted in a
woman’s arm
release progestin over a 5 year period
disadvantages: no protection from STDs,
side effects (such as menstrual
irregularity, cramps, headaches, weight gain, nausea)
may have difficult and painful removals with possible
scarring and permanent nerve damage
[picture of
Norplant insertion procedure]
according to a 1993 study
19%
of removals took > 1 hour
6%
of removals required > 1 visit
Ľ
of patients reported significant pain during removal
lawsuits exceeded 50,000
NORPLANT no longer available:
Aug 2000 – Wyeth suspended shipment of Norplant kits
method best
failure rate typical failure rate
over 1 year period over
1 year period
Norplant 0.05
0.05
http://www.implanon-usa.com/en/consumer/index.asp
[picture of
IMPLANON product]
lasts up to 3 years
failure rate <1
injected contraceptives
Depo-Provera = medroxyprogesterone acetate (a
progestin)
frequency of shots
Depo-Provera:
every 12 weeks
resumption of fertility after stopping:
Depo-Provera:
10 months
advantages
don’t need to remember to take a pill
no-one else (besides health care practitioner) knows
disadvantages
no protection against STDs,
side effects: menstrual irregularities,
weight gain, headaches, breast tenderness,
dizziness, mood changes
reduced bone mineral density
method failure
rate
best typical
Depo-Provera 0.3 0.3
$196 /y*
injection ($70
/injection)
*1 year with 100 occurrences of
intercourse
contraceptives and bleeding patterns
Am I healthy? Am I pregnant? Am I
menopausal?
Where is all the blood going?
Depo-Provera
within 2 years 80% will be amenorrheic
some women have longer / heavier periods;
or spotting & breakthrough bleeding
condom
sheath that covers penis
protects against
unwanted pregnancy
sexually transmitted diseases
lubrication
decreases condom breakage
enhances penile sensitivity
[picture of
condoms]
some sexually transmitted diseases including the AIDS virus
can pass through pores in natural-membrane condoms
but not through smaller pores in latex or polyurethane
condoms
average shelf life: 5 years
do not store in hot places!
[picture of
condoms]
correct use
unroll the condom over the erect penis
before any contact
between penis and vulva occurs
[picture of
unrolling procedure]
with plain-end condoms twist the end of the condom
before rolling the condom down over the penis to
create a reservoir
[picture of
procedure for creating a reservoir]
hold condom at base of penis before withdrawing
[picture of
condoms]
if the condom is not lubricated use vaginal secretion, saliva,
or water-based lubricant
to put on the vulva and outside the condom before insertion
to minimize chance of breakage
do not use oil-based lubricants
such as baby oil, vaseline, massage
oil, vegetable oil, hand-lotions etc.
[picture of
condoms]
disadvantages
can interrupt spontaneity
can reduce penile sensitivity
some men unable to maintain erection while putting on condom
some people allergic to latex condoms
condoms may have pin-hole size leaks
condoms may break or slip off
[picture of
condoms]
major advantage
condoms greatly decrease the risk of STDs including AIDS
spermicide nonoxynol-9
may provide better protection against pregnancy????
does not enhance protection against AIDS
(might even
make things worse!?)
[picture of
condoms]
method failure
rate
best typical
male condom 3 16
$100 /y*
($1
/condom)
*1 year with 100 occurrences of
intercourse
study group condom breaks / acts of
intercourse
*reproductive employees 1:161
university students 1:92
women at Family Planning Clinic 1:16
*reproductive
employees
=
individuals working in family planning,
reproductive health, gynecology and obstetrics
from Contraceptive Technology p169
medications causing latex degeneration
Monistat, Estrace,
Premarin, and Femstat
vaginal cream, Vagisil ointment
if you are using these products, abstain from sex or use
another (non-latex containing) contraceptive method
heterosexual transmission
among partners of HIV-positive individuals
couples having sexual activity without condoms
82%
of spouses became HIV-positive
couples having sexual activity using condoms
17%
of spouses became HIV-positive
(some couples reported condom breakage, improper use, and
fellatio)
the female condom
can be inserted prior to sexual activity
does not need to be removed immediately following ejaculation
sex is less messy
some women have difficulty inserting
there may be decreased sensations
[picture of
female condom insertion technique]
method failure
rate
best typical
female condom 5 21
$300 /y*
($3
/condom)
*1 year with 100 occurrences of
intercourse
diaphragm
must be fitted by a skilled practitioner
[picture of
diaphragm insertion]
place one teaspoon spermicidal jelly into cup
use the finger to also spread some around edge
insert diaphragm jelly side up
check placement to make certain cervix is covered
[picture of
diaphragm insertion]
the diaphragm should remain in the vagina
for at least 6-8 hours following intercourse
to avoid TSS don’t leave it in for longer than needed
if repeated intercourse occurs within short time frame
leave diaphragm in place but add more jelly
[picture of
diaphragm insertion]
care of the diaphragm
with good care it can last several years
check periodically for defects
(hold up to light, fill with water)
after removal wash with mild soap and warm water
carefully and thoroughly dry it
if needed dust with cornstarch but not with talc!
do not use oil-based lubricants (latex deteriorates)
[picture of
diaphragm insertion]
diaphragm benefits and drawbacks
may decrease vaginal infections
reduces risk of precancerous changes in cervical cells
high failure rate
woman or partner may have latex allergy
some women may have bladder discomfort, urethral
irritation, or recurrent cystitis
[picture of
diaphragm insertion]
types of diaphragms
[pictures of
arcing spring, coil spring, wide seal rim, and flat spring diaphragms]
method failure
rate
best typical
diaphragm 6 18
$50
/diaphragm
$280
/fitting
$85
/spermicide*
*1 year with 100 occurrences of
intercourse
cervical cap
needs to be fitted by a skilled practitioner
can be inserted up to six hours before intercourse
should not be removed for at least 6-8 hours after intercourse
do not leave in longer than 24 hours (risk of TSS)
wash with warm water and soap after removal
do not use oil-based lubricants
[picture of
cervical cap]
advantages compared to diaphragm
does not require pelvic structure support
requires less spermicide than
diaphragm
disadvantages compared to diaphragm
women with distortions of cervix cannot use
more difficult to learn to use
may be uncomfortable for some women
may dislodge during intercourse
[picture of
cervical cap]
[pictures of
cervical cap and diaphragm
comparing and contrasting how they stay in place
diaphragm wedges against pubic bone, cervical cap doesn’t]
method failure
rate
best typical
cervical cap 9 18
$50
/cap
(woman has
never been pregnant) $280 /fitting
$85
/spermicide*
cervical cap 26 40
(woman has
been pregnant)
*1 year with 100 occurrences of
intercourse
spermicides
foam, suppositories, creams, jellies, film
suppositories take time to dissolve and spread (20min)
another application is necessary
before each additional act of intercourse
wait 8 hours after intercourse before douche (or bath?)
[pictures of
spermicidal products]
additional lubrication may be helpful or nuisance
irritation of genital tissues may occur
may increase yeast infections and urinary tract infections
suppositories may feel gritty if partly dissolved
taste and scent may be disagreeable
insertion may interrupt spontaneity (for 30 seconds +)
[pictures of
spermicidal products]
method failure
rate
best typical
spermicides 6 30
$85*
(85
cents/application)
*1 year with 100 occurrences of
intercourse
Is it safe to swallow spermicides during sex?
the FDA noted in 1980
that spermicides are regularly
swallowed during oral sex
because of their extremely low toxicity
and because nonoxynol-9 is used as a wetting agent in foods,
the FDA deemed spermicides safe when
swallowed in small quantities.
Adult Industry Medical Health Care
Foundation
http://aim-med.org/10nonoxynol.html
Accessed 3/14/02
use of a dam to prevent ingestion during oral sex
don’t swallow semen or vaginal fluids or have oral sex without
using a condom or dam
(a latex sheet
that covers the vaginal area during oral sex)
especially if you have sores or cuts in your mouth
many pharmacies now carry dams on racks next to condoms
if you’re fresh out of Saran Wrap and having trouble
with the raw taste of latex
put a little honey or jam on your side of the dam
don’t forget to lavish your lube on the sweet flesh on the other
side
nonoxynol-9 and HIV transmission
nonoxynol-9 kills HIV in a test tube
use of nonoxynol-9 has not been proven to decrease HIV transmission
during human sexual intercourse
there is now evidence that nonoxynol-9 may even facilitate HIV
transmission
from 1996 until May 2000
UNAIDS (United Nations Programme on AIDS)
sponsored a study of the effectiveness of a gel
which contained 52.5 milligrams of N-9
(called
COL-1492 in the trial and advantage-S in the United States)
compared to an inactive placebo gel
the study was conducted in several locations in Africa
study enrolled nearly1,000 HIV-negative commercial sex workers
all participants advised to use condoms consistently and
correctly
half of the women were provided a placebo gel
half of the women received an N-9 gel
none of the women, or the researchers, knew which product each
woman received
women who used N-9 gel became infected with HIV at about a
50% higher rate
than women who used the placebo gel
women who used N-9 also had more vaginal lesions
which might have facilitated HIV transmission
in a small scale study in New York city lubes containing N-9
stripped away much of the protective rectal lining
in all four study participants
– something
that took hours to heal –
but the lining remained intact with the placebos
contraceptive sponge
effective for repeated acts of intercourse without needing additional
spermicide
no prescription (or fitting process) needed
[picture of contraceptive
sponges]
method failure rate
best
typical
sponge 9 20
(13-16) $200*
(woman has
never been pregnant) ($2 /sponge)
sponge 20 40
(woman has
been pregnant) (10 according to
Today sponge
manufacturer)
*1 year with 100 occurrences of
intercourse
What happened to the
Today® Contraceptive Sponge?
Production of the Sponge ceased March
1994 after the FDA inspected the Whitehall-Robins Healthcare plant where it was
manufactured.
The inspection revealed “bacterial
contamination of the water used to make the Today® Sponge as well as other
products manufactured in the facility, including nasal sprays, ointments and
suppositories.”
[picture of
Seinfeld character Elaine contemplating whether a potential partner is
sponge-worthy]
April 22, 2005
the Today® Sponge
has won re-approval for marketing from the FDA
Press Release
http://www.todaysponge.com
IntraUterine Devices (IUDs)
Copper-T (ParaGard) copper wire
wrapping
alters tubal and uterine fluids affecting sperm and egg so fertilization
does not occur
(effect
lasts 10 years)
Progestasert T (plastic T releasing
progesterone)
thickens cervical mucus, alters endometrial lining, impairs
tubal motility, disrupts ovulatory patterns
(effect lasts 1 year)
[picture of
IUDs]
Mirena – contains & releases hormone – levonorgestrel
(a progestin
hormone often used in birth control pills)
(effect lasts
5 years)
FDA – approved Dec. 2000
after being available in Europe for 10 years already
and having been used by approximately 2 million women worldwide
[picture of Mirena]
Mirena works precisely where you need it.
thinning of the lining of the uterus
inhibition of sperm movement
thickening of the cervical mucus
[picture of Mirena in place]
Changes in the uterine lining (endometrium) during the normal menstrual cycle
[picture of
uterine lining becoming very thick around the time of ovulation]
Uterine lining (endometrium)
in “resting state” with Mirena
[picture of
uterine lining never becoming very thick]
Who can use an IUD?
women in stable monogamous relationships
no history of sexually transmitted diseases or PID
have at least one child or have completed childbearing
25
years of age or older
ready access to medical facilities
What does ongoing use require?
woman or partner must check each month after her period
to see that the string is the same length as when the
IUD was inserted
[pictures of
IUDs]
advantages
convenient (nothing to remember or buy)
allows uninterrupted sexual interaction
developed in 1960s
nearly 10% of US women used them 1970s
1980s decrease in popularity
because of reports of PID & infertility
2,000,000 users 1982
310,000 users 1995
[pictures of
IUDs]
disadvantages
increased risk of Pelvic Inflammatory Disease (PID) ?????
increased risk of infertility ?????
discomfort, cramping, bleeding, or pain may occur
during insertion and sometimes afterwards
2-20% of users expel IUD within first
year after insertion
rarely IUD can break through uterine wall (1-9/1000)
if pregnancy occurs in spite of IUD
50%
chance of miscarriage
5%
chance of ectopic pregnancy
[pictures of
IUDs]
outside the 20 days following insertion
STD
risk not increased according to one study
no association between copper IUD use & tubal
infertility
large study of Mexican nulligravid
women
chances of expulsion higher in nulliparous
women
[pictures of
IUDs]
[pictures of
IUD insertion technique]
[pictures of
IUD falling out through cervix and IUD perforating through uterine wall]
[pictures of
perforating IUD from user blog]
IUD types
[pictures of:
Saf-T-Coil 1967-1983
Copper-7 1973-1986
Lippes Loop 1964-1985
Copper-T 380 1984
Progestasert 1976
Copper-T 1976-1986
Dalkon Shield 1970-1975]
the Dalkon shield with its multifilament tail
was the primary culprit responsible for complications
litigation fallout made most manufacturers withdraw products
[pictures of
various types of IUDs]
[pictures of
various brands of IUD in table below]
Paragard Mirena Skyla Liletta Kyleena
1984 2001 2013
2015 2016
10 years 5 years 3
years 3 years 5 years
32mm 32mm
28mm 32mm 28mm
36mm 32mm
30mm
32mm 30mm
0 levonorgestrel 52mg 13.5mg 52mg 19.5mg
approved for women
who were done having children----------------------- approved for
all women
method failure rate
best
typical
Progestasert-T IUD 1.5 % 2
% $500*
1 year protection
ParaGard T 380A 0.6 % 0.8
% $550
10 years protection ($55* if used 10y)
Mirena 0.1% 0.1% $700
levonorgestrel-releasing ($140*
if used 5y)
5 years protection
*1 year with 100 occurrences of
intercourse
PID risks
gonococcal infection/coital act
infected male -> uninfected female 50%
infected female -> uninfected male 25%
PID per woman with cervical gonorrhea
40%
if not treated
0%
if adequately treated
infertility per PID episode
1st
episode 11%
2nd
episode 23%
3rd
episode 54%
Risk of PID is Highest in First Month After IUD Insertion
[bar graph showing
PID Rate vs. Time Since Insertion]
emergency contraception
prevents a pregnancy after unprotected intercourse
risk of pregnancy from unprotected mid-cycle intercourse
is 20-30%
reasons for emergency contraception
condom broke or diaphragm slipped
unplanned sex (failure to use contraception)
sexual assault
emergency contraception could prevent 2.3 million unintended
pregnancies/year in US
emergency contraception usually needed on the weekend when the
doctor’s office is closed
emergency contraception
Emergency Contraceptive Pills (ECPs) are
taken in two doses
1st dose within 72 hours of unprotected intercourse
2nd dose 12 hours after 1st dose
11 brands of pills that can be used as
ECPs in the US
each Pill Brand is followed by the number of pills for 1
dose
Alesse® 5 pink pills
Levlen® 4 light orange pills
Levlite® 5 pink pills
Levora® 4 white pills
Lo/Ovral® 4 white pills
LowOgestrel® 4 white
pills
Nordette® 4
light orange pills
Ogestrel® 2
white pills
Ovral® 2 white pills
Tri-Levlen® 4 yellow pills
Triphasil® 4
yellow pills
Trivora® 4 pink pills
the Preven® Emergency
Contraceptive Kit
produced by Gynetics, Inc., contains
Yuzpe regimen ECPs (two pills per dose)
A
pregnancy test
Instructions
for use
it was approved by the FDA and was the first product
specifically labeled and marketed for emergency contraception
a second emergency contraceptive product
subsequently came onto the market
called “Plan B”
Preven
nausea 42%
vomiting 16%
recommendation: take meclizine HCl
(Antivert, Antrizine, Bonine etc.)
25mg,
1 hour before contraceptive dose
Plan B
less nausea & vomiting
types of emergency contraception
Progestin – containing pills
Plan
B One-Step, Next Choice One Dose,
Next
Choice, Levonorgestrel
Ulipristal acetate – containing pills
Ella
Progestin and Estrogen – containing
pills
many brands of combined daily birth control pills
Mifeprestone – containing pills
(only available in China, Vietnam, Armenia and Russia)
Copper-T IUD
can be used for ongoing contraception for 10 years
Effectiveness
of Combined Pills for Emergency Contraception
100 women have a single act of
unprotected intercourse
Emergency
contraception not used:
8 women would become pregnant
Emergency
contraception used:
2 women would become pregnant (Preven)
Prevents 6 out of 8, or 75% of
expected pregnancies
[graphical
illustration of above statistics]
Effectiveness
of Progestin Only Pills for Emergency Contraception
100 women have a single act of
unprotected intercourse
Emergency
contraception not used:
8 women would become pregnant
Emergency
contraception used:
1 woman would become pregnant (Plan B)
Prevents 7 out of 8, or 85% of
expected pregnancies
[graphical
illustration of above statistics]
ECPs Are Most Effective When Taken
Early
[graphed data
showing that ECP prevents the most pregnancies when taken within 24 hours
compared to 25-48 hours, or 49-72 hours]
[picture of
the journey of the egg from ovary to uterus with timing of milestones
12-24 hours egg is fertilized
3 days zygote arrives at end of fallopian tube
4 days zygote arrives at
large space in uterus
4 ˝ - 5 days embryo “hatches” out of “shell”
5 ˝ - 6 days embryo implants]
Fertility
Awareness Methods
(Natural Family Planning)
Mucus Method (Ovulation Method)
“read”
vaginal secretions
“fertile
period” = 9-15 days / menstrual cycle
Calendar Method (Rhythm
Method)
predict cycle based on previous menstrual history
(requires
accurate records for one year)
fertile period depends on variability of cycle
Basal Body
Temperature (BBT) Method
measure temperature immediately upon waking
detect a drop just prior to ovulation
(and
a rise just after ovulation)
[pictures
illustrating appearance of mucus at various stages of the menstrual cycle]
A – immediately
after period – very little cervical mucus – dry feeling around vagina
B – a few
more days into the cycle – sticky or creamy mucus – slippery feel around vagina
C – as
ovulation nears – mucus increases in quantity and becomes clear and stretchy
charting key
P = period
D = dry
S = sticky
F = fertile
[picture of
sample charting data for mucus method]
rules for intercourse while monitoring cervical mucus to
avoid pregnancy
menses – abstain
thick mucus or dry days – intercourse permitted on alternate days ??? or
avoided ???
sticky mucus days
– abstain
fertile mucus days
– abstain
thick mucus or dry days – intercourse permitted beginning on the 4th day after the
last days of wet, stretchy mucus
A – fertile: cervix
– high and central in vagina
os – wet and
open
B – infertile:
cervix – tilted back and lower in vagina
os – drier and closed
[pictures of
fertile and infertile uterine/cervical/os findings]
calendar charting
calculation of the fertile period rests on three assumptions
ovulation occurs on day 14 (plus or minus 2 days) before
the onset of the next menses
sperm remain viable for 2-3 days
ovum survives for 24 hours
to use the calendar method a woman must first maintain a
menstrual calendar
recording the length of each of her menstrual cycles
over the most recent eight-month span
the first day of menstrual bleeding or even light
spotting is day 1 of a cycle
[graphical
illustration of 14 days between ovulation and next bleed, regardless of cycle
length]
shortest first unsafe longest last unsafe
cycle day cycle day
21 days 3rd
day 21 days 10th day
22 days 4th day 22
days 11th day
23 days 5th day 23
days 12th day
24 days 6th day 24
days 13th day
25 days 7th day 25
days 14th day
26 days 8th day 26
days 15th day
27 days 9th day 27
days 16th day
28 days 10th day 28
days 17th day
29 days 11th day 29
days 18th day
30 days 12th day 30
days 19th day
31 days 13th day 31
days 20th day
32 days 14th day 32
days 21st day
33 days 15th day 33
days 22nd day
34 days 16th day 34
days 23rd day
35 days 17th day 35
days 24th day
chart of basal body temperature during a model menstrual
cycle
[picture of sample
BBT (basal body temperature) chart]
use a digital thermometer
or a glass one specifically designed to take your BBT
[pictures of
thermometers]
traveling, drinking a lot of alcohol, and late nights can raise
your temperature
drawing a cover line helps identify the post-ovulatory temperature rise
[picture of sample
BBT (basal body temperature) chart]
a woman may ovulate as early as day 7
assume fertility from the beginning of the cycle or no later
than day 4
(if cycles
> 25 days long)
until the temperature has remained elevated
(a rise of
0.4-0.8oF compared to preceding 6 days)
for 3 consecutive days
if a sustained rise cannot be detected a woman may not
have ovulated in that cycle
one study found that six out of 30 women had no
identifiable BBT pattern in a cycle
when hormone tests clearly documented ovulation
[picture of symptothermal chart
recording the basal body temperature, mucus, and sexual activity
of the user]
Standard Days Method
for women with menstrual cycles between 26 and 32 days
long
failure rate = 12 (typical use)
cost = $12.95 retail
http://www.irh.org/pdf/CycleBeadsWashPostJuly04.pdf
[picture of
Cycle Beads
Black
Tube
This tube does not represent a day of
the cycle.
It has an arrow that shows which
direction to move the ring]
[picture of
Cycle Beads
First
Day of Period
Day
1:
The red bead represents the first day
of a woman’s period.
She puts the ring on this bead on that
day.
There is a VERY low risk of pregnancy
on this day.]
[picture of
Cycle Beads
Menstruation
& After
Days
1 through 7:
Dark beads represent the days of a
woman’s menstrual cycle
when there is a VERY low risk of pregnancy.]
[picture of
Cycle Beads
Fertile
Window
Days
8 through 19:
Light beads represent the days of a
woman’s menstrual cycle
when she is likely to get pregnant.]
[picture of
Cycle Beads
Low
Fertility
Days
20 through 32:
Dark beads represent the days of a
woman’s menstrual cycle
when there is a VERY low risk of getting pregnant.]
[picture of
Cycle Beads
The
Darker Bead
The darker bead helps women to know if
they have cycles that are shorter than 26 days.
If a woman has her period before she
puts the ring on this bead,
she has had a cycle that is shorter than 26 days.
If this happens more than once in a
year, this method is probably not appropriate for her.]
[picture of
Cycle Beads
End
of Cycle
Days
27- 32:
The day a woman starts her next
period, no matter what bead the ring is on,
she should move the ring to the red bead.
Then the process starts over.]
[picture of
Cycle Beads
Last
Bead
Day
32:
If a woman has not had her period by
the day after she puts the ring on this bead,
she is having a cycle longer than 32 days.
If this happens more than once in a
year, this method is probably not appropriate for her]
http://www.cyclebeads.com/smartphones
[picture of CycleBeads app on smartphone]
ovulation predictor kits
utilize a urine test
detect LH surge that triggers ovulation
typical kit contains 5 sticks
to be used on consecutive days around the time of
ovulation
[picture of
woman checking an ovulation stick]
[picture of
biological events of the menstrual cycle
including the large LH surge preceding ovulation]
difficulties with fertility awareness methods
require a considerable length of time to master before they
can be used
difficult for women with irregular cycles
some women are unable to see clear patterns in mucus
changes or BBT changes
difficulties continued
vaginal infections, semen, contraceptive foams, jellies, and
creams,
may make it hard to observe mucus changes
sperm can remain alive up to 72 hours, so pre-ovulatory temperature drop
does not occur far enough ahead of time to safely avoid
coitus
ovulation and menstruation may vary due to factors
such as illness, fatigue, or emotional extremes
method failure
rate
best typical
Standard days 5 12
0*
Calendar/BBT/mucus 9 20
0*
*1 year with 100 occurrences of
intercourse
female sterilization - tubal sterilization
blocks movement of egg & sperm
complications:
gas pain, incision pain, accidental burnt tissue
post-surgical bleeding, anesthesia risks
surgical reversal sometimes successful
up to 75% pregnancy rate
[picture of
tubal sterilization procedure]
tubal sterilization techniques
[picture of
tubal sterilization procedure modifications]
Essure system – 2 soft metallic coils
FDA approved as of November 2002
fibers laced through coils stimulate local fibrotic response
occlude the tubes over 3 months
patients may go home about 45 minutes after the procedure
[picture of Essure placement]
bilateral placement achieved in 86% on 1st attempt
and another 4% on 2nd attempt
(in one study
of 518 women)
no pregnancies reported in 439 women
who relied on it for 12 mo
(and 16 women
for 24 mo)
male sterilization by vasectomy
safer & cheaper than tubal ligation
vasovasostomy: reversal
of vasectomy (pregnancy rate 50%)
[pictures of
steps in the vasectomy procedure:
(1) The vas deferens is located.
(2) A small incision in the scrotum
exposes the vas.
(3) A small section of the vas is
removed, and the ends are cut and/or cauterized.
(4) The incision is closed.
(5) Steps 1-4 are repeated on the
other side.]
method failure
rate
best typical
tubal sterilization 0.5 0.5
$1,200-$2,500*
vasectomy 0.1 0.2
$250-$1,000*
*1 year with 100 occurrences of
intercourse
Less-Than-Effective Methods
nursing
withdrawal
douching
nursing
breast feeding delays return of fertility after childbirth
nearly 80% of breast-feeding women ovulate before their
first menstrual period
withdrawal
it may be difficult to judge when to withdraw
preejaculatory Cowper’s gland secretions may contain sperm
sperm deposited on labia can swim into vagina
douching
after ejaculation some sperm reach the inside of the uterus
in a matter of 1-2 minutes
water from douching may actually propel sperm toward
cervical opening
method failure
rate
best typical
withdrawal 4 24
0*
*1 year with 100 occurrences of
intercourse
percent of women using various contraceptive methods
1995 CDC Website; 1988 & 1982 Larry
J Copeland: Textbook of Gynecology
1995 1988 1982
female sterilization 17.8 16.6 12.9
male sterilization 7.0 7.0 6.1
other sterile (noncontraceptive
or nonsurgical) 4.3 5.3 8.1
pregnant / postpartum 4.6 4.8 5.0
seeking pregnancy 4.0 3.8 4.2
nonuser (never had intercourse 10.9-13.6%) 35.8 25 26.9
pill 17.3 18.5 15.6
condom 13.1 8.8 6.7
IUD 0.5 1.2 4.0
diaphragm 1.2 3.5 4.5
periodic abstinence 1.5 1.4 2.2
withdrawal 2.0 1.3 1.1
implant 0.9
injectable 1.9
Contraceptive Prevalence in 4
Countries
[graph
showing significant differences in contraceptive use in 4 countries]
http://www.malecontraceptives.org
malecontraceptives.org
J