Pregnancy after breast cancer. A comprehensive review.
ABSTRACT Pregnancy after breast cancer treatment has become an important issue since many young breast cancer patients have not completed their family. Generally, these patients should not be discouraged to become pregnant when they want to, since published data suggest no adverse effect of pregnancy on survival. As fertility may be impaired by chemotherapy, different fertility preserving strategies have been developed. Births seem to sustain no adverse effects, while breastfeeding appears to be feasible and safe.
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ABSTRACT: BACKGROUND Young breast cancer survivors often need to deal with adverse effects of treatments on fertility and complex reproductive decisions. In this systematic review, we highlight what is known about childbearing and parenthood attitudes and decisions of young breast cancer survivors from their own perspective.METHODS We conducted manual and electronic searches on Pubmed, PsychInf and CINAHL databases for articles, published in English between 1 January 1990 and 31 October 2012, that assessed childbearing, pregnancy and parenthood attitudes/decisions of female breast cancer survivors (premenopausal and/or <50 years old). Eligible articles were classified into quantitative studies, qualitative studies and mixed methods studies. Data from each study were individually extracted by all the authors, and standardized tables were created and discussed to ensure congruence of the information extracted.RESULTSOf the 493 publications identified in PubMed (results are presented for PubMed searches as the other databases did not yield any new relevant papers), 8 met the inclusion criteria, in addition to 2 publications retrieved manually. A total of 10 studies provided information on pregnancy and parenthood attitudes and decisions, in addition to risks and benefits of childbearing after breast cancer. Survivors had mixed attitudes towards the issue. Fear associated with future pregnancy was reported, namely the risk of cancer recurrence. However, for many survivors, pregnancy and parenthood can represent normalcy, happiness and life fulfilment.CONCLUSIONS Childbearing after breast cancer is an important issue for survivors. Future larger and prospective studies should be implemented to increase certainty of conclusions of current research. Clinicians may benefit from a deeper understanding of the importance of pregnancy and parenthood to survivors in order to provide the needed educational and psychosocial support services, overcome misinformation and better assist women with their fertility-related decisions.Human Reproduction Update 09/2013; · 9.23 Impact Factor
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ABSTRACT: Significant controversy exists in the literature regarding the role of pregnancy in the prognosis of breast cancer. We designed a matched case-case study, matching pregnancy-associated breast cancer (PABC) cases with breast cancer cases for stage, age, and year of diagnosis. 39 consecutive cases of PABC were matched with 39 premenopausal cases of breast cancer. Univariate and multivariate survival analyses followed by adjustment for stage, grade, estrogen receptor status, and age at diagnosis, were performed. Regarding overall survival (OS), univariate analysis pointed to longer OS in non-PABC cases vs. PABC cases. Accordingly, a more advanced stage predicted shorter survival. In the multivariate analysis, the independent aggravating effect mediated by pregnancy persisted. Interestingly, a post hoc nested analysis within PABC cases indicated that the 3rd trimester pointed to shorter OS. The aforementioned results on OS were also replicated during the examination of relapse-free survival. Implementing a matched case-case design, the present study points to pregnancy as a poor prognostic factor for breast cancer.Breast Care 06/2013; 8(3):203-7. · 0.68 Impact Factor
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ABSTRACT: Determine the outcome of embryo cryopreservation in female oncology patients METHODS: The outcomes of IVF/ICSI cycles in oncology patients over 15 years in a University Teaching Hospital. Forty-two oncology patients (mean 31.9 ± 3.9 years) underwent embryo cryopreservation treatment (n = 33 IVF, n = 6 ICSI). Controlled ovarian stimulation with GnRH antagonist protocol (n = 34; 81 %) yielded fewer oocytes than GnRH agonist protocol (n = 8; 19 %) (9.4 ± 6.3 vs. 15.3 ± 8.9; p = 0.04) respectively. There was no significant difference in mean (±SD) duration of ovarian stimulation (11.6 ± 2.6 vs.10.6 ± 2.7), median gonadotrophin dose (1950 vs. 1670 IU), median day 5-6 oestradiol level (1124 vs.1129 pmol/l) or embryo yield (6.2 ± 4.1 vs. 8.8 ± 4.3; p = 0.07) between GnRH antagonist and agonist treatment cycles respectively. Thirty-nine patients cryopreserved embryos and three had their cycle cancelled. During this study period, of those who cryopreserved embryos, 5 patients underwent 9 frozen-thaw cycles (13 %), resulting in 2 live births (1 twin, 1 singleton, live birth rate 22 %). Six patients died (15 %), 3 conceived naturally (8 %) and 2 couples separated (5 %). Fourteen patients discarded their embryos (36 %). Twenty-two patients' (56 %) have embryos remaining in storage. This study demonstrates that embryo cryopreservation in female oncology patients gives a satisfactory live birth rate. However, there are concerns regarding cost-effectiveness, resulting from high disposal/non-usage of embryos, and further studies are required.Journal of Assisted Reproduction and Genetics 07/2013; · 1.82 Impact Factor