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Strahlenther Onkol. 2005 Aug;181(8):534-9.

Ovarian function following pelvic irradiation in prepubertal and pubertal girls and young adult women.

Author information

  • 1Department of Radiotherapy, University Hospital, Muenster, Germany. schuck@uni-muenster.de

Abstract

PURPOSE:

To analyze the effect of pelvic radiotherapy on ovarian function in prepubertal and pubertal girls and young adult women.

PATIENTS AND METHODS:

In a retrospective monoinstitutional analysis, patients < 30 years of age at diagnosis were included who had been irradiated between 1979 and 1998. The main tumor types were Hodgkin's disease (38%), Ewing's sarcoma (20%) and nephroblastoma (11%). Patients were classified into three groups according to the position of the ovary in relation to the radiation portals. Group 1 was defined by direct irradiation of both ovaries. Group 2 patients were included with both ovaries potentially located in the radiation portals. In group 3, at least one ovary was not directly irradiated. The median follow-up was 128 months.

RESULTS:

16 of 55 analyzed patients were categorized in group 1. In ten of these patients, hormone status was evaluable. The ovarian doses were >/= 15 Gy. Except for one patient treated with 15 Gy all developed hormone failure. Eight of 14 patients of group 2 were evaluable. Seven of these patients developed ovarian failure. 19 of 24 patients in group 3 were evaluable. Nine of these patients developed ovarian failure. The observed difference in the rate of ovarian failure between the groups is statistically significant (p = 0.045).

CONCLUSION:

All patients receiving > 15 Gy to the ovaries developed hormone failure. In one case of a patient receiving an ovarian dose of 15 Gy, hormone failure was not found. In case of pelvic irradiation excluding at least one ovary, approximately half of the patients developed ovarian dysfunction, probably also due to the effects of polychemotherapy.

PMID:
16044222
[PubMed - indexed for MEDLINE]
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