Subfertility :Routine
evaluation: I
assume that subfertile couple under your treatment has normal seminal parameters with normal
sexual relation. For each type of
subfertile women you quoted it will be better to plan the treatment according to
her age & months of trying. I also presume you have assessed medical
fitness for pregancy, in the sense of Viral screening, STI screening, Hepatitis
serology and above all complete haemogram & ruled out Haemoglobinopathies.
a Pap smear is appropriate. , though for financial reason such screening
procedure is uncommon in most of the rural centers as is uncommon is
CBE(Clinical Breast Examination on annual basis after the age of 40yrs).
History immunization and past medl or
surgical history should be elicited , Drug abuse, life style , dietary habits
and above all stress can be evaluated with some patience without hurting the
couple. Regular intake of drug has to be enquired,. Any past history of
miscarriage have to be enquired and cycle regularity and recent weight gain
should be enquired. Family h/o Diabetes carries a risk factor for
hyperinsulinaemia in fair number of cases. In such women life style
modification and 3 yarely lipid profile estimation, LFT profile should be
recorded and preserved in her diary.
Endocrine markers:--Coming
to subfertility problems the relevant biomarkers which are important and
relevant are AMH, Day 3 LH, DHEAO4, PRL & TSH . For prolactin disorders
cabergolin , and for raised DHEASO4 Decdac (decadron) 0.25 mg(If BMI is < 28
) and 0.5 mg at late night (before retiring ) if BMI is > 28 from cycle day 1 to cycle day 14 will curtail
ACTH and hopefully normalize excess DHEASO4 and help follicles to grow in a
synchronized way. Ovarian volumes and echotexture have to be assed although AFC
measurement is not so essential at this stage .
Clinical classification of all subfertile women: Basically all kind of subfertile
women can be classified on two types A) No palpable pelvic mass or pathology or
fixity B) with palpable mass or pathology (say tenderness, fixity).
In type B cases HSG or SIS(saline Infusion sonography)/ HSG should better be avoided. A low threshold for
pelvic antibiotics, exclusion of Kochs & STI and Tr of Chlamydial infection
seems rational and worthy.
Group A:
In absence of any palpable pathology, or
visible Cx lesion uterotubal evaluation should be done in addition to routine
day 3 USG. But when the couple comes to you Basal scan : I presume basal scan has already been
done and one can securitize that report. Now it will be your duty to insist on HSG Vs SIS if she is aged 26 yrs
and TT(trying time is > 3 yrs) .By and large he working rule is to insist on
HSG(or say SIS) after couple of months of ovarian stimulation. SIS, in my
opinion, should be done by an expert and
this procedure has an edge over HSG because polyps, small myoma, adhesions (Ashermans )
are better diagnosed by SIS . This is my personal opinion, I may be wrong as well.
I also have a feeling that these three uterine conditions (synechiae, small
polyp/s or small submucous myoma) collectively account for about 7-10% of all cases
of F subfertility. All these minor conditions are difficult to palpate
clinically and often missed in traditional HSG. Such conditions which chiefly result
in implantation failure or result early embryonic demise due to unreceptive
endometrium.
Induction
of Ovulation:
Coming to ovulation induction letrozole has an edge over Clomiphene citrate as
Letrozole do not yield to thin ET and PR(preg rate per initiated cyce is
better) , CC quite often leads to polyfollicular growth which is uncommon in
CC. But be it CC or Letrozole cycle monitoring by TVS is a justifiable
procedure though with limited resources and long distance from clinic LH
urinary lit is the next option. Serum progesterone assay 5 days after presumed
ovulation is not a common procedure in Letrozole cycles.
PCOD : Now coming to your case No 1: pt diagnosed with
pcod, primary infertility yet to start
treat . In fact the terminology of PCOD is fainting in favour of
hyperandrogenic hyperechogenic small or large volume ovaries with oligomenorrhoea.
My suggestion will be to A)
adjust BMI, and drug selection according to LH, serum testosterone and PPBS . B)
Pretreatment OCP or only
progesterone in preceding cycle : In such cases quite often there is
modern trend to prescribe one cycle of OCP (sometimes 3 cycles of OCP) to
suppress LH & testosterone and synchronize the follicles but opinion
differs. Not all doctors prescribe Preinduction OCP/Progesterone prior to
initiation of Letrozole treatment. Incidentally to my knowledge there is no
Post pill amenorrhoea after ingesting of short course of OCP intake
to down regulate the hormones as. C) Metformin if
serum creatinine is normal as metformin is largely excreted via kidneys . There should be low threshold of
prescribing Metformin in SE Asia . The dose gradually increased up to 1000 mg
OD if yearly serum creatinine is normal to correct hyperinsulinaemia and to
normalize hepatic cellular function and prevent miscarriage if preg ensues meanwhile.
But many of us don’t believe empirical metformin therapy in PCO and or Vit D
therapy more so in the western world. D) : Vit D therapy: its rationality?? AS we know life style modification, avoiding oils and
fried foods and street foods , Yoga and Metformin , LM Folate suppl, Vit D
suppl (if Vid D estimation is unaffordable even then one can empirically
prescribe 60,000 cap/ sachet with milk
as Vit D toxicity will appear only when serum Vit D is 100 times of
normal highest value., Vit D is one of the avenue of glucose entry inside the
cells independent of insulin and such mechanism is also true for Myoinositol
&DCI . In Indian skin the receptors of Vit D are quantitavely and
qualitatively poor. That is why most of the cultivators in our country who work
in bright sun for long hours even have poor vit D serum level (see AIIMS study)
and DM is common in rural hard working
Indian cultivators due to genetic
cause .
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