Estrogen or anti-estrogen for Bologna poor responders?

References

• Keay SD, Liversedge NH, Mathur RS, Jenkins JM. Assisted conception following poor ovarian response to gonadotrophin stimulation. Br J Obstet Gynaecol 1997;104:521–7
   PubMedGoogle Scholar
• Pandian Z, McTavish AR, Aucott L, et al. Interventions for’poor responders’ to controlled ovarian hyper stimulation (COH) in in-vitro fertilisation (IVF). Cochrane Database Syst Rev 2010;20:CD004379
   Google Scholar
• IVF Worldwide Survey. Poor responders: how to define, diagnose and treat? 2005. Available from: www.IVF-Worldwide.com
   Google Scholar
• Mitwally MF, Casper RF. Aromatase inhibition improves ovarian response to follicle-stimulating hormone in poor responders. Fertil Steril 2002;77:776–80
   PubMed Web of Science ®Google Scholar
• Dragisic KG, Davis OK, Fasouliotis SJ, Rosenwaks Z. Use of a luteal estradiol patch and a gonadotropin releasing hormone antagonist suppression protocol before gonadotropin stimulation for in vitro fertilization in poor responders. Fertil Steril 2005;84:1023–6
   PubMed Web of Science ®Google Scholar
• Fanchin R, Salomon L, Castelo-Branco A, et al. Luteal estradiol pre-treatment coordinates follicular growth during controlled ovarian hyperstimulation with GnRH antagonists. Hum Reprod 2003;18:2698–703
   PubMed Web of Science ®Google Scholar
• Ozmen B, Sönmezer M, Atabekoglu CS, Olmus H. Use of aromatase inhibitors in poor-responder patients receiving GnRH antagonist protocols. Reprod Biomed Online 2009;19:478–85
   PubMed Web of Science ®Google Scholar
• Ferraretti P, la Marca A, Fauser B, et al. ESHRE consensus on the definition of ‘poor response’ to ovarian stimulation for in vitro fertilization: the Bologna criteria. Hum Reprod 2011;26:1616–24
   PubMed Web of Science ®Google Scholar
• Pabuccu R, Pabuccu EG, Gursoy AY, et al. Improved cycle outcomes after laparoscopic ovarian diathermy in hyper-responder patients with previous ART failure. Gynecol Endocrinol 2014;30:881–4
   PubMed Web of Science ®Google Scholar
• Oudendijk JF, Yarde F, Eijkemans MJ, et al. The poor responder in IVF: is the prognosis always poor? A systematic review. Hum Reprod Update 2012;18:1–11
   PubMed Web of Science ®Google Scholar
• Ke H, Chen X, Liu YD, et al. Cumulative live birth rate after three ovarian stimulation IVF cycles for poor ovarian responders according to the bologna criteria. J Huazhong Univ Sci Technolog Med Sci 2013;33:418–22
   PubMed Web of Science ®Google Scholar
• Busnelli A, Papaleo E, Del Prato D, et al. A retrospective evaluation of prognosis and cost-effectiveness of IVF in poor responders according to the Bologna criteria. Hum Reprod 2015;30:315–22
   PubMed Web of Science ®Google Scholar
• Polyzos P, Nwoye M, Corona R, et al. Live birth rates in Bologna poor responders treated with ovarian stimulation for IVF/ICSI. Reprod Biomed Online 2014;28:469–74
   PubMed Web of Science ®Google Scholar
• Garcia-Velasco JA, Moreno L, Pacheco A, et al. The aromatase inhibitor letrozole increases the concentration of intraovarian androgens and improves in vitro fertilization outcome in low responder patients: a pilot study. Fertil Steril 2005;84:82–7
   PubMed Web of Science ®Google Scholar
• Kapoor M, Hurwitz J, Polotsky A, et al. Letrozole in combination with gonadotropins decreases cancellation rates and improves ongoing pregnancy rates per transfer in poor responders. Fertil Steril 2007;88:S100. doi: http://dx.doi.org/10.1016/j.fertnstert.2007.07.325
   PubMed Web of Science ®Google Scholar
• Akhtar M, Njar VC, Wright JN. Mechanistic studies on aromatase and related C-C bond cleaving P-450 enzymes. J Steroid Biochem Mol Biol 1993;44:375–87
   PubMed Web of Science ®Google Scholar
• Goswami SK, Das T, Chattopadhyay R, et al. A randomized singleblind controlled trial of letrozole as a low-cost IVF protocol in women with poor ovarian response: a preliminary report. Hum Reprod 2004;19:2031–5
   PubMed Web of Science ®Google Scholar
• Yarali H, Esinler I, Polat M, et al. Antagonist/ letrozole protocol in poor ovarian responders for intracytoplasmic sperm injection: a comparative study with the microdose flare-up protocol. Fertil Steril 2009;92:231–5
   PubMed Web of Science ®Google Scholar
• Wang XN, Greenwald GS. Synergistic effects of steroids with FSH on folliculogenesis, steroidogenesis and FSH- and hCG-receptors in hypophysectomized mice. J Reprod Fertil 1993;99:403–13
   PubMedGoogle Scholar
• Tartagni M, Cicinelli E, De Pergola G, et al. Effects of pretreatment with estrogens on ovarian stimulation with gonadotropins in women with premature ovarian failure: a randomized, placebo-controlled trial. Fertil Steril 2007;87:858–61
   PubMed Web of Science ®Google Scholar
• Frattarelli JL, Hill MJ, McWilliams GD, et al. A luteal estradiol protocol for expected poor responders improves embryo number and quality. Fertil Steril 2008;89:1118–22
   PubMed Web of Science ®Google Scholar
• Hill MJ, McWilliams GD, Miller KA, et al. A luteal estradiol protocol for anticipated poor-responder patients may improve delivery rates. Fertil Steril 2009;91:739–43
   PubMed Web of Science ®Google Scholar
• Elassar A, Engmann L, Nulsen J, Benadiva C. Letrozole and gonadotropins versus luteal estradiol and gonadotropin-releasing hormone antagonist protocol in women with a prior low response to ovarian stimulation. Fertil Steril 2011;95:2330–4
   PubMed Web of Science ®Google Scholar
• Chang X, Wu J. Effects of luteal estradiol pre-treatment on the outcome of IVF in poor ovarian responders. Gynecol Endocrinol 2013;29:196–200
   PubMed Web of Science ®Google Scholar
• Reynolds KA, Omurtag KR, Jimenez PT, et al. Cycle cancellation and pregnancy after luteal estradiol priming in women defined as poor responders: a systematic review and meta-analysis. Hum Reprod 2013;28:2981–9
   PubMed Web of Science ®Google Scholar
• Broekmans FJ, Soules MR, Fauser BC. Ovarian aging: mechanisms and clinical consequences. Endocr Rev 2009;30:465–93
   PubMed Web of Science ®Google Scholar