. a) Diagnosis of PCOS is certain
if all three criteria are fulfilled b) Diagnosis of PCOS is probable but not
certain if there is hyperandrogenism and oligomenorrhoea unassociated with
polycystic ovaries. c) They have also admitted there is a subset of teenagers
in whom diagnosis of PCOS is not possible during adolescence if there is
combination of features of hyperandrogenism and polycystic ovaries
(unassociated with oligomenorrhoea) or oligomenorrhoea with polycystic ovaries unaccompanied
by hyperandrogenism. Carmina et al have also warned that presence of any of
three features appearing in isolation should not at all be considered as PCOS12.
Roe and
Dokras5, however, recently (2011)
framed still another guideline for diagnosing PCOS during adolescence. They
have proposed that during adolescence, a positive diagnosis of PCOS should
require all elements of the Rotterdam consensus meant for adult women and not just
two out of three. Additionally they have also insisted on laboratory
documentation of hyperandrogenemia i.e. elevated blood androgens as observed by
using sensitive assay i.e. liquid
chromatography with tandem mass spectrometry which they considered as a
must for accurate diagnosis of hyperandrogenaemia.20 ()
Rosner W, Auchus RJ ,Aziz R, Sluss PM, Raff H- Utility ,limitations, and
pitfalls in measuring testosterone : An Endocrine Society position statement .
J Clin Endocrinol Metab 2007; 92:405-413.
? Where do we stand now?
The Third Consensus Workshop Group on Women’s Health aspects of
polycystic ovary syndrome (PCOS) organized by ESHRE/ASRM in the year 2010 at
Amsterdam21, though very rightly
devoted one session on adolescent PCOS but disappointingly abortive to
formulate any definite criteria for diagnosing or screening for adolescent
PCOS! . Similarly,
the Board of Directors of one new society (Androgen Excess and PCOS society
formed in 2000) failed to outline any ideal criteria of the above syndrome22. They however evaluated all girls and women
suffering from androgen excess of any etiology. Surprisingly some members of
the society were of opinion that there may be forms of PCOS without overt
evidence of hyperandrogenism as well. They have documented as many as nine
phenotypes of PCOS and according to present author the society has performed an
admirable job by stratifying the probability of risk of metabolic malady
according to each phenotype.
At what age we should level
an adolescent girl as PCOS?
Diagnosing
this disorder before or soon after onset of menarche is difficult because girls with PCOS generally seek medical
help only when they suffer from
irregular menses or skin changes for long time. This usually takes couple of
years after the onset of menarche. To begin with PCOS may
masquerade as simple obesity or idiopathic hirsutism and in most cases such
symptoms disappear with time. Therefore very logically Carmina et al (2010)7
have suggested avoiding making the diagnosis of PCOS until the age
of 18 years. Unfortunately, this has made a sense of reluctance among many
gynecologists to investigate an adolescent girl with persistent oligomenorrhoea
at an early age of 15-17 years.
Are there any premonitory signs before
the onset of full blown symptoms of PCOS? Can we identify children at risk of developing PCOS?
As a matter of
fact, quite often PCOS women seen at late twenty can trace their symptoms to
peripubertal years23. (Franks S. Adult polycystic ovary syndromes begin in
childhood. Best Pract Res Clin Endocrinol Metab 2002; 16:263-72). Occasionally
PCOS may emerge as premature pubarche or
premature adrenarche (PA), a condition secondary to early maturation of
zona reticularis of the adrenal gland which leads to premature androgen secretion
and appearance of pubic hairs before the age of eight years of age24. Ibanez L,
Potau N, de Zegher F: Precocious pubarche, dyslipidaemia and low IGF binding
protein -1 in girls: Relation to reduced prenatal growth. Paediatr. Res, 1999;
46:320-2)Ref article 2, Premature adrenarche, a mild form of adrenal
hyperandrogenism, potentially poses increased risk for the development of
PCOS, particularly in obese girls 25(
Ref;Ibanez L, Virdis R, Potau
N . Natural history of premature puberache: An
auxological study. J. Clin Endocrinol. Metab 1992;74:254-7 .But it is now known
that before the classical well recognized symptoms of PCOS appear there can be
some laboratory evidences which may exist well before the full- blown disease26,. Turhan NO, Toppare MF, Seckin NC,
Dilmen G: ‘The Predictive Power of Endocrine Tests for the Diagnosis of
Polycystic Ovaries in Women with Oligomenorrhoea’ Gynaecol Obstet Invest 1999;48:183-186.-)
Depending upon the phenotypic
presentation destined for the concerned adolescent it is theorized that early
symptom of PCOS may vary, perplexing the family physicians.
There are
several phenotypes of adolescent PCOS the role of genetic versus environmental
factors in the causation of each phenotype has long been debated. It is now
believed that quality of diet, exercise and environment modify the particular
genetic alterations differently therefore culminating into different
phenotypes. What is more important is that it may be possible to move from a
phenotype to another as women ages.
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