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| Abortion |
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| Introduction |
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| Definition |
Abortion is the
termination of pregnancy by any method (spontaneous
or induced) before the foetus is sufficiently
developed to survive independently. (foetus less
than 20 weeks of pregnancy)
Types
of Abortions
Abortions can be classified as either of the following:
Induced
Abortion :
Out of almost 35 million abortions which take
place annually in the world, more than half of
them are illegal and performed by untrained, unskilled
persons and done under highly unhygienic conditions. |
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| The
Indian MTP Act |
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To avoid the misuse of induced
abortions, most countries have enacted laws whereby
only qualified Gynecologists under conditions
laid down and done in clinics/hospitals that have
been approved can do abortions. The Medical Termination
of Pregnancy Act was enacted by the Indian Parliament
in 1971 and came into force from 01 April, 1972.
The MTP act was again revised in 1975.
The MTP Act lays
down the condition under which a pregnancy can
be terminated, the persons and the place to perform
it.
The reasons for
which MTP is done, as interpreted from the Indian
MTP Act, are:
(i) Where a pregnant woman has a serious medical
disease and continuation of pregnancy could endanger
her life like: |
- Heart diseases.
- Severe rise in blood pressure.
- Uncontrolled vomiting during
pregnancy
- Cervical/ breast cancer.
- Diabetes mellitus with eye
complication (retinopathy).
- Epilepsy.
- Psychiatric illness.
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| (ii) Where the continuation
of pregnancy could lead to substantial risk to the
newborn leading to serious physical / mental handicaps
examples like |
- Chromosomal abnormalities.
- Rubella (German measles) viral
infection to mother in first three months.
- If previous children have
congenital abnormalities.
- Rhiso-immunisation.
- Exposure of the foetus to
irradiation.
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(iii) Pregnancy resulting
of rape.
(iv) Conditions where the socio-economic status
of the mother (family) hampers the progress of a
healthy pregnancy and the birth of a healthy child.
Failure of Contraceptive Device irrespective of
the method used (natural methods/ barrier methods/
hormonal methods).
This condition is a unique feature of the Indian
Law. All the pregnancies can be terminated using
this criterion. |
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| Consent: |
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If
married--- her own written consent. Husband’s
consent not required.
If unmarried and above 18years ---her own written
consent.
If below 18 years ---written consent of her guardian.
If mentally unstable --- written consent of her
guardian.
A consent assures the clinician performing the
abortion that she:
Has been informed of all her options.
Has been counseled about the procedure, its risks
and how to care for herself after she chosen the
abortion of her own free will. |
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| Person
or persons who can perform MTP: |
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| Physicians
qualified to do MTP are : |
- Any qualified registered
medical practitioner who has assisted in 25
MTPs.
- A house surgeon who has
done six months post in Obstetrics and Gynecology.
- A person who has a diploma
/degree in Obstetrics and Gynecology.
- 3 years of practice in
Obstetrics and Gynecology for those doctors
registered before the 1971 MTP Act was passed.
- 1 year of practice in Obstetrics
and Gynecology for those doctors registered
on or after the date of commencement of the
Act.
- Whenever the pregnancy
exceeds 12 weeks but is below 20 weeks opinion
of two registered medical practitioners is
necessary.
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Place
where MTP can be performed :
Any institutions licensed by the Government to
perform MTP. The certificate issued by the Government
should be conspicuously displayed at a place easily
visible to persons visiting the place. |
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| Methods
of Induced Abortion: |
Abortion can be induced by different methods depending
on the weeks of pregnancy completed.
Tests to be done: |
- A thorough medical examination
including blood pressure and weight
- An internal examination to
confirm the duration of pregnancy.
- Urine test for confirmation
of pregnancy.
- Routine urine analysis.
- Routine blood counts including
hemoglobin estimation.
- Blood group and Rh factor.
- At times, an ultrasound may
be required.
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| First
trimester abortion. |
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Surgical methods:
(i) Cervical dilatation followed by evacuation
of uterus by:
Curettage /Suction evacuation / vacuum aspiration
/ Dilatation and evacuation
(ii) Menstrual aspiration (MR)
Surgical
methods in first trimester
Anaesthesia :
- Cervix is numbed (local anesthesia)
with an injection so that the patient is pain
free. This is given alone or with a sedative.
- General anaesthesia can be
given if the lady is apprehensive or has a low
pain threshold or in selected cases like unmarried
women or if it is her first pregnancy or if
she opts for it.
Procedure:
The lady is made
to lie on her back with her legs raised and placed
in stirrups (lithotomy position) |
Dilatation
and evacuation:- Cervical dilatation followed
by evacuation of uterus by –curettage /
vacuum aspiration / suction evacuation / suction
curettage/dilation and evacuation
Surgical abortion
done in the early pregnancy, that is before 12
weeks is done by first dilating the cervix, which
is done by introducing hollow metal rods of increasing
diameters and then evacuating the contents of
the uterus mechanically by scraping or by suction
or both. The procedure takes about 15 minutes.
Advantages:
- A single step procedure.
- Safe.
- Possible to carry out Sterilization
or insertion of an intra-uterine device.
- Can go home on the same day.
- Can resume working the next
day.
Risks
- Reaction to the drugs used
in anesthesia
- Bleeding
- Infection of the uterus and
fallopian tubes.
- Accidental perforation of
the uterus.
- Emotional distress.
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Menstrual
aspiration/ Menstrual regulation (MR) :- Menstrual
aspiration also called minisuction, miniabortion,
vacuum aspiration, lunchtime abortion which is
done between 1 to 3 weeks after the failure to
menstruate. This procedure is done as an out patient.
A thin plastic tube is inserted into the uterus
and its contents sucked out by negative pressure
created in a syringe. The procedure takes about
10 minutes to complete.
Advantages:
- No hospitalization required.
- Done without anesthesia.
- Surgical risks are minimal.
- Person can go home and resume
her normal activities.
Risks:
- Failure of the procedure.
- Bleeding.
- Infection
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| Medical
Methods in the first trimester :
The main drugs
in use today are a group of drugs known as prostaglandin
which can be used through various routes namely
by mouth, by injection intramuscularly /intravenously
or vaginally. These drugs are used by themselves
or in combination with other drugs.
- The
methotrexate – misoprostol method: A woman receives an injection of methotrexate.
Between five to seven days later she returns
and inserts suppositories of misoprostol into
her vagina. The pregnancy usually ends at home
within a day or two. The embryo and other tissue
that develops during pregnancy are passed out
through the vagina.
- The
mifepristone – misoprostol method: Mifepristone also known, as RU-486 is antiprogesterone.
A woman swallows a dose of mifepristone. She
returns in five to seven days and inserts suppositories
of misoprostol into her vagina. The pregnancy
usually ends at home within four hours. The
embryo and other tissue that develops during
pregnancy are passed out through the vagina.
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Risks-
- Mifepristone, Methotrexate
and misoprostol cause nausea and vomiting, diarrhea.
- Incomplete abortion may require
surgical evacuation.
- Heavy bleeding , which may
continue upto 7 days.
In the first trimester
abortions the preference is for termination by
the surgical method of dilatation and curettage
as the drugs are not easily available and expensive.
These drugs can
be misused and hence FDA approval for these agents
has not yet been given. |
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| Second
Trimester Abortions : |
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Methods of second
trimester abortion (13 – 20 week)
Medical methods using
drugs like:
- Ethacridine lactate.
- prostaglandin
Surgical methods
- Aspirotomy
- Hysterotomy
- Hysterectomy
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| edical
Methods: in second trimester |
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Ethacradine actate:
- Drug named as Emcredyl or
Rivanol:
This is a drug
that is introduced through a sterile catheter
through the vagina into the uterine cavity
and placed behind the pregnancy sac. This
procedure is not painful. A maximum of 150
ml is installed. It takes between 48 to 72
hours to abort. The procedure is safe, cheap
and easily available. To hasten the abortion,
ethacridine can be used along with prostaglandin
or oxytocin (a naturally available drug to
increase uterine contractions).
- Prostaglandin:
- PG-E2 : A gel of prostaglandin called Cerviprime inserted
into the mouth of the uterus- (the cervix) in
the evening in the clinic and the patient is
asked to lie down for about half an hour and
then allowed to go home. Early the following
morning in the hospital a drip of oxytocin is
started intravenously. Abortion is usually achieved
in less than 24 hrs and the abortion is complete
- Misoprostol : It is available in tablet form and
given by mouth or can be inserted vaginally.
Two tablets of Mifepristone is given followed
24 hrs later by an oral or vaginal dose of misoprostol.
The uterus will contract causing cramping followed
by the expulsion of the fetus. The cramps and
the bleeding will stop after the products have
been expelled
- Others : Drugs like urea,hypertonic saline,glucose
which are introduced into the pregnant sac have
all been done away with in favour of the above
mentioned methods.
Risks
Needs to be in a hospital upto 3 days
Infection.
Increased bleeding.
Retained products, which may need surgical evacuation.
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| Surgical Methods
in the second trimester |
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| Anaesthesia: |
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General
anesthesia can be given depending on the pain
threshold / apprehension of the lady.
Procedure:
- Aspirotomy.
- Hysterotomy.
- Hysterectomy.
Aspirotomy:
Aspirotomy is a
procedure similar to what is done in first trimester.
This method can be employed between 13-20 week
of pregnancy. To help in dilatation of the cervix
prostaglandins may be used.
Hysterotomy :
Hysterotomy is
a major operating procedure where the abdomen
is opened. In a hysterotomy the uterus is opened
and the contents of the uterus removed directly
under vision. This is like a cesarean.
Hysterectomy :
In a hysterectomy,
the uterus along with the pregnancy is removed
in toto. At times hysterotomy or hysterectomy
may be necessary because of a failure of a medical
induction during the second trimester.
In the second trimester
of pregnancy, the procedure followed is by the
medical methods rather than by the surgical methods.
This is because the risks and the convenience
of the medical methods are far less than surgical
termination.
An early diagnosis
of pregnancy with early termination is safer than
in the second trimester.
Counselling
Counselling is
normally done by the attending Obstetrician.The
aim of counselling is to help her come to a decision
as to the need of continuation or termination
of the pregnancy and to resolve it in the direction
that she chooses.
The purpose of
counselling is;
- To allay the anxiety of the
person who intends to under-go the procedure.
- To provide information about
the methods, safety, risks etc
- To screen for guilt, or any
psychiatric ailment.
- To help the lady understand
and to cope with her feelings.
- To help her to prevent future
unplanned pregnancy.
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