Endometrial preparation for in vitro maturation treatment

To the Editor:

We read with great interest the paper published recently by Elizur et al. in the September 2009 edition of Fertility and Sterility (1). The authors compared retrospective data of two different protocols used to perform in vitro maturation treatment (IVM) based on physician preference: only micronized 17β-estradiol (6-12 mg/day) for endometrial preparation or human menopausal gonadotropins (HMG) 150 IU/day to induce both endometrial preparation and mild follicle stimulation.

Woman’s age and morphologic pattern should be taken into consideration while talking about “thin” endometrium

To the Editor:

We have read with great interest the excellent study by Miwa et al. (1) and would like to comment on the potential relationship between endometrial thickness, a woman’s age and endometrial morphologic pattern.