Long-term effects of radioiodine treatment on female fertility in survivors of childhood differentiated thyroid carcinoma

Nies, M.; Cantineau, A.E.P.; Arts, E.G.J.M.; Berg, M.H. van den; Leeuwen, F.E. van; Kobold, A.C.M.; Hesselink, M.S.K.; Burgerhof, J.G.M.; Brouwers, A.H.; Dam, E.W.C.M. van; Havekes, B.; Heuvel-Eibrink, M.M. van den; Corssmit, E.P.M.; Kremer, L.C.M.; Netea-Maier, R.T.; Pal, H.J.H. van der; Peeters, R.P.; Plukker, J.T.M.; Ronckers, C.M.; Santen, H.M. van; Horst-Schrivers, A.N.A. van der; Tissing, W.J.E.; Bocca, G.; Dulmen-den Broeder, E. van; Links, T.P.

doi:doi:10.1089/thy.2019.0560

Background: Differentiated thyroid carcinoma (DTC) during childhood is a rare disease. Its excellent survival rate requires a focus on possible long-term adverse effects. This study aimed to evaluate fertility in female survivors of childhood DTC by assessing various reproductive characteristics combined with anti-Mullerian hormone (AMH) levels (a marker of ovarian reserve).Methods: Female survivors of childhood DTC, diagnosed at <= 18 years of age between 1970 and 2013, were included. Survivors were excluded when follow-up time was less than five years or if they developed other malignancies before or after diagnosis of DTC. Survivors filled out a questionnaire regarding reproductive characteristics (e.g., age at menarche and menopause, pregnancies, pregnancy outcomes, need for assisted reproductive therapy). Survivors aged Results: Fifty-six survivors with a median age of 31.0 (interquartile range, IQR, 25.1-39.6) years were evaluated after a median follow-up of 15.4 (IQR 8.3-24.7...Show moreBackground: Differentiated thyroid carcinoma (DTC) during childhood is a rare disease. Its excellent survival rate requires a focus on possible long-term adverse effects. This study aimed to evaluate fertility in female survivors of childhood DTC by assessing various reproductive characteristics combined with anti-Mullerian hormone (AMH) levels (a marker of ovarian reserve).Methods: Female survivors of childhood DTC, diagnosed at <= 18 years of age between 1970 and 2013, were included. Survivors were excluded when follow-up time was less than five years or if they developed other malignancies before or after diagnosis of DTC. Survivors filled out a questionnaire regarding reproductive characteristics (e.g., age at menarche and menopause, pregnancies, pregnancy outcomes, need for assisted reproductive therapy). Survivors aged Results: Fifty-six survivors with a median age of 31.0 (interquartile range, IQR, 25.1-39.6) years were evaluated after a median follow-up of 15.4 (IQR 8.3-24.7) years. The median cumulative dose of I-131 administered was 7.4 (IQR 3.7-13.0) GBq/200.0 (IQR 100.0-350.0) mCi. Twenty-five of the 55 survivors aged 18 years or older during evaluation reported 64 pregnancies, 45 of which resulted in live birth. Of these 55, 10.9% visited a fertility clinic. None of the survivors reported premature menopause. Age at AMH evaluation did not differ between DTC survivors and the comparison group (p = 0.268). Median AMH levels did not differ between DTC survivors and the comparison group [2.0 (IQR 1.0-3.7) mu g/L vs. 1.6 (IQR 0.6-3.1) mu g/L, respectively, p = 0.244]. The cumulative dose of I-131 was not associated with AMH levels in DTC survivors (r(s) = 0.210, p = 0.130).Conclusions: Female survivors of DTC who received I-131 treatment during childhood do not appear to have major abnormalities in reproductive characteristics nor in predictors of ovarian failure.Show less

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Long-term effects of radioiodine treatment on female fertility in survivors of childhood differentiated thyroid carcinoma