Infertility is the inability to beget a child after one year of
unprotected sexual intercourse. Either or both partners may be
responsible. 1 in 10 couples face this problem.
The basics of the natural process of conception deserve a mention.
In a normal menstrual cycle around the 14th day, usually one egg
(ovum) is produced from one of the two ovaries. This is termed
ovulation. The egg is sucked into the fallopian tube. The
man produces millions of highly motile sperms in his testes. These
are deposited in the vagina during intercourse, the timing of
which is important. The sperms travel upwards through the uterus
to the fallopian tube. Only one among them succeeds in uniting
with the ovum i.e. fertilization. The fertilized ovum then travels
down the fallopian tube to reach the uterus roughly 5 - 7 days
later. It gets implanted in the uterus. The embryo then
develops and grows for 37 - 40 weeks, to a term fetus.
From the above it is not difficult to comprehend procreation as
an orchestrated sequence of events where each organ plays a pivotal
role. It is provided with some fine-tuning from other organ systems
in the body (endocrine - pituitary, thyroid, and the nervous system).
Hence to arrive at the cause of infertility, the couple needs
to go through a meticulous evaluation. It is of essence to the
doctor to start from the basics of acquiring information, proceed
through a detailed systemic examination and investigations, culminating
in treatment.
Two factors hinder the pursuit to fertility in a couple considered
infertile. One is the fact that couples seek specialist guidance
and treatment after they have been through an armory of remedies,
medical and mystical. When equated in terms of menstrual/ovulatory
cycles lost, it is a lot! Timely referral to a specialist and
a commitment to subsequent visits would certainly go a long way
in achieving the desired result. This is also less taxing on the
patient in more ways than one. Secondly, fertility regulation
is not a one-time command. The couple needs to be aware of the
fact that infertility treatment can be a long-drawn process or
a short one, depending on the cause. Finally it should be emphasized
that no other area of medicine demands such a close and sometimes
lengthy cooperation between the doctor and the patient, in order
to achieve success. The family/society should also contribute
to the latter by supporting the couple in their decisions.
Fetal
medicine
The
center stage in the play of procreation is currently occupied
by a 5mm entity - the fetus. Its call for attention to develop
and grow into a normal being is finally being heeded to in the
area of fetal medicine.
The
last three decades has witnessed the growth of fetal medicine
from a controversial experimental procedure to a routine component
of obstetric care. The fetal framework in terms of physical structure,
bodily functions and behavior, inherited components (from the
parents) i.e. the genes, as well as its abode - the amniotic fluid,
have all been made accessible to observation, assessment and treatment,
and revolve within the sphere of fetal medicine.
Precision
in the diagnosis of fetal abnormalities at the gross and subtle
level is as a result of the advances in cytogenetics, molecular
biology and ultrasonography. In other words, the fetus can be
seen on an ultrasound scan, its cells obtained from the amniotic
fluid or the fetal blood/skin can be studied at the cellular and
molecular level. This is what is commonly referred to as prenatal
diagnosis. Fetal therapy logically follows, and thanks
to the concerted efforts of research teams worldwide, it has successfully
made an inroad into the field of obstetric care.
The rationale for providing fetal therapy is as follows:
It
is obvious that fetal medicine involves a multi-disciplinary approach
with a sonologist, a geneticist, a specialized obstetrician and
a perinatologist working in tandem. Fetal medicine should be practiced
only in committed centers with the requisite infrastructure. It
is pertinent to point out that all the resources of diagnosis
and therapy are intended for that case in point where something
is amiss. Its very presence does not call for its indiscriminate
use.