TY - JOUR
T1 - Effect of first line cancer treatment on the ovarian reserve and follicular density in girls under the age of 18 years
AU - El Issaoui, Meryam
AU - Giorgine, Veronica
AU - Mamsen, Linn S.
AU - Rechnitzer, Catherine
AU - Birkebæk, Niels
AU - Clausen, Niels
AU - Kelsey, Thomas William
AU - Andersen, Claus Yding
N1 - The Child Cancer Foundation in Denmark, The Novo Nordisk Foundation and the EU interregional project ReproHigh/ReproUnion are thanked for having funded this study.
PY - 2016/12
Y1 - 2016/12
N2 - Objective: To study the impact of first-line antineoplastic treatment on the ovarian reserve in young girls returning for ovarian tissue cryopreservation (OTC) in connection with a relapse.Design: Retrospective case-control study.Setting: University hospitals.Patients: Sixty-three girls under the age of 18 years who underwent OTC before
(group 1: 31 patients) and after (group 2: 32 patients) their initial
cancer treatment.Intervention(s): None.Main Outcome Measure(s): Follicular densities (follicles/mm3) measured from an ovarian
cortical biopsy before OTC. The ovarian volume (mL) of entire ovaries
excised for OTC was also monitored.Result(s):There was no statistically significant difference in the mean age or follicular density between groups 1 and 2 (334 ± 476/mm3 vs. 327 ± 756/mm3).
In contrast, the ovarian volume and total number of ovarian cortex
chips cryopreserved were statistically significantly lower in patients
who received gonadotoxic treatment before OTC (mean ± standard deviation
[SD]: ovarian volume, 5.3 ± 3.1 mL vs. 2.9 ± 2.1 mL, respectively;
number of cortex chips: 21.3 ± 8.1 vs. 15.2 ± 7.1, respectively). The
reduction in the estimated ovarian reserve ranged from 10% to 20% in
children to around 30% in adolescent girls (>10 years). Conclusion(s): Girls under the age of 10 tolerate a gonadotoxic insult better than
adolescents, who may experience up to a 30% reduction in the ovarian
reserve via first-line gonadotoxic treatment, which at present is
considered to have little effect on the follicle pool. This information
will improve counseling of young female cancer patients in deciding
whether to undergo fertility preservation treatment.
AB - Objective: To study the impact of first-line antineoplastic treatment on the ovarian reserve in young girls returning for ovarian tissue cryopreservation (OTC) in connection with a relapse.Design: Retrospective case-control study.Setting: University hospitals.Patients: Sixty-three girls under the age of 18 years who underwent OTC before
(group 1: 31 patients) and after (group 2: 32 patients) their initial
cancer treatment.Intervention(s): None.Main Outcome Measure(s): Follicular densities (follicles/mm3) measured from an ovarian
cortical biopsy before OTC. The ovarian volume (mL) of entire ovaries
excised for OTC was also monitored.Result(s):There was no statistically significant difference in the mean age or follicular density between groups 1 and 2 (334 ± 476/mm3 vs. 327 ± 756/mm3).
In contrast, the ovarian volume and total number of ovarian cortex
chips cryopreserved were statistically significantly lower in patients
who received gonadotoxic treatment before OTC (mean ± standard deviation
[SD]: ovarian volume, 5.3 ± 3.1 mL vs. 2.9 ± 2.1 mL, respectively;
number of cortex chips: 21.3 ± 8.1 vs. 15.2 ± 7.1, respectively). The
reduction in the estimated ovarian reserve ranged from 10% to 20% in
children to around 30% in adolescent girls (>10 years). Conclusion(s): Girls under the age of 10 tolerate a gonadotoxic insult better than
adolescents, who may experience up to a 30% reduction in the ovarian
reserve via first-line gonadotoxic treatment, which at present is
considered to have little effect on the follicle pool. This information
will improve counseling of young female cancer patients in deciding
whether to undergo fertility preservation treatment.
KW - Ovarian tissue cryopreservation
KW - Fertility preservation
KW - Ovarian volume
KW - Follicle density
U2 - 10.1016/j.fertnstert.2016.09.001
DO - 10.1016/j.fertnstert.2016.09.001
M3 - Article
SN - 0015-0282
VL - 106
SP - 1757–1762.e1
JO - Fertility and Sterility
JF - Fertility and Sterility
IS - 7
ER -