2014
DOI: 10.1111/cen.12543
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The spectrum of clinical, hormonal and molecular findings in 280 individuals with nonclassical congenital adrenal hyperplasia caused by mutations of the CYP21A2 gene

Abstract: NC-CAH has a variable phenotype depending on the age, gender and the presence of a classical mutation. A peak cut-off value of 17OHP post-ACTH lower than 30 nm excludes the diagnosis of NC-CAH, whereas basal 17OHP <6 nm may represent a false-negative result. A significant number of patients harboured a classical mutation, a finding which requires genotyping of the partner for genetic counselling.

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Cited by 77 publications
(95 citation statements)
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References 43 publications
(80 reference statements)
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“…An 8 AM value .200 ng/dL (6.0 nmol/L) is suggestive of NCCAH, although it is also compatible with recent ovulation or tumoral hyperandrogenism. 72 This cutoff displayed 92% to 98% sensitivity in detecting NCCAH 73,74 and 12% to 25% specificity in discriminating it from PCOS. 75,76 Thus, unless the 17-OHP level achieves a diagnostic level (.1000 ng/dL = 30 nmol/L), an adrenocorticotropic hormone test is recommended to confirm the diagnosis of NCCAH.…”
Section: Figurementioning
confidence: 98%
See 1 more Smart Citation
“…An 8 AM value .200 ng/dL (6.0 nmol/L) is suggestive of NCCAH, although it is also compatible with recent ovulation or tumoral hyperandrogenism. 72 This cutoff displayed 92% to 98% sensitivity in detecting NCCAH 73,74 and 12% to 25% specificity in discriminating it from PCOS. 75,76 Thus, unless the 17-OHP level achieves a diagnostic level (.1000 ng/dL = 30 nmol/L), an adrenocorticotropic hormone test is recommended to confirm the diagnosis of NCCAH.…”
Section: Figurementioning
confidence: 98%
“…75,76 Thus, unless the 17-OHP level achieves a diagnostic level (.1000 ng/dL = 30 nmol/L), an adrenocorticotropic hormone test is recommended to confirm the diagnosis of NCCAH. 74 Pelvic ultrasonography is seldom necessary for diagnosis because criteria for PCOM in adolescence are uncertain, as discussed earlier. However, it is indicated if clinical findings are suggestive of a virilizing tumor (eg, rapid progression, clitoromegaly, pelvic mass, or a total testosterone level .200 ng/dL) or disorder of sex development.…”
Section: Figurementioning
confidence: 99%
“…В таких случаях следует обращать внимание на другие кожные проявления гиперандрогенемии, а также на метаболичес кие нарушения, которые более значимо коррелируют со степенью повышения уровней андрогенов [8,[15][16][17]. Во-вторых, регу-лярные менструальные циклы могут быть ановуляторными [2,3,9,20,26]. С другой стороны, при нкВДКН у 50-55% женщин могут наблюдаться регулярные овуляторные циклы [9,17,18,20,26], что не исключает наличие гиперандрогенемии.…”
Section: гормональная диагностика гиперандрогенемииunclassified
“…Во-вторых, регу-лярные менструальные циклы могут быть ановуляторными [2,3,9,20,26]. С другой стороны, при нкВДКН у 50-55% женщин могут наблюдаться регулярные овуляторные циклы [9,17,18,20,26], что не исключает наличие гиперандрогенемии. Однако нкВДКН ассоциирована с высоким риском заболева-емости потомства и в каждом случае требует генетического консультирования [20,26].…”
Section: гормональная диагностика гиперандрогенемииunclassified
“…The one commonly abnormal test is an elevated dehydroepiandrosterone sulfate (DHEA-S) for age, which is expected since the etiology is an early increase in adrenal androgen secretion. Testosterone levels are invariably normal and 17-OH progesterone levels are typically normal but may be increased in the 2-4% who prove to have nonclassical congenital adrenal hyperplasia (NC-CAH) due to mild 21-hydroxylase deficiency [8]. Many believe that this justifies routine testing for NC-CAH, which sometimes presents with growth acceleration and other signs of androgen excess but which often is indistinguishable on clinical exam from PA.…”
mentioning
confidence: 99%