Safety and feasibility of performing two consecutive ovarian stimulation cycles with the use of letrozole-gonadotropin protocol for fertility preservation in breast cancer patients.

Abstract:

OBJECTIVE:To investigate the safety and feasibility of performing two consecutive ovarian stimulation cycles with the use of letrozole protocol for fertility preservation in breast cancer patients. DESIGN:Retrospective cohort study. SETTING:Academic fertility preservation center. PATIENT(S):Seventy-eight women ≤ 45 years, diagnosed with stage ≤ 3 breast cancer, who desired fertility preservation. INTERVENTION(S):Two consecutive cycles versus a single ovarian stimulation cycle with a letrozole-follicle-stimulating hormone (FSH) protocol. MAIN OUTCOME MEASURE(S):Embryo or oocyte cryopreservation outcomes, time interval from surgery to chemotherapy, and breast cancer recurrence rates. RESULT(S):Sixty-one patients underwent single-cycle stimulation and 17 received two stimulation cycles. The mean total number of oocytes harvested (16.1 ± 13.2 vs. 9.1 ± 5.2) and embryos generated (6.4 ± 2.9 vs. 3.7 ± 3.1) were statistically significantly higher in patients who underwent two cycles versus one cycle. The time interval from surgery to chemotherapy was similar between the two-cycle and single-cycle groups (63.7 ± 7.7 vs. 58.0 ± 12.1 days). After a mean follow-up interval of 58.5 ± 13.6 months, the recurrence rates were similar between the two-cycle (0 of 17) and single-cycle (2 of 49) patients. CONCLUSION(S):It appears to be safe and feasible to perform two consecutive ovarian stimulation cycles to increase the oocyte/embryo yield for fertility preservation.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Turan V,Bedoschi G,Moy F,Oktay K

doi

10.1016/j.fertnstert.2013.08.030

subject

Has Abstract

pub_date

2013-12-01 00:00:00

pages

1681-5.e1

issue

6

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(13)02996-8

journal_volume

100

pub_type

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