title: [Transvaginal ultrasonographic assessment of endometrium during hMG-hCG cycles].
abstract: Daily changes in the thickness and texture of the endometrium were assessed by transvaginal sonography in 15 natural (cycles 'cycle-A) and 24 stimulated cycles (cycle-B: hMG-hCG cycles; hCG 10,000 IU was injected on the day after the dominant follicle reached 18mm in three-directional radius, n = 7) (cycle-C: hCG 3,000 IU injections on the 5th, 9th and 13th day after hCG 10,000 injection were added to cycle-B, n = 10) (cycle-D: hCG 1,000 IU instead of 3,000 IU of cycle-C, n = 7). The duration of the luteal phase was 15, 9, 17 and 18 days in cycle-A, cycle-B, cycle-C and cycle-D, respectively. The thickness of the endometrium increased lineally until ovulation day (D +/- 0) (thickness: 10.7mm) in cycle-A, but in stimulated cycles it revealed a significantly rapid increase until D-4 (10.9mm) and then reached a plateau. The ratio of the thickness of the hyperechoic area to the total thickness of the endometrium reached 100% (D + 9) in cycle-A. The ratio reached only 72% (Max, D + 4) in cycle-B, but the effect of luteal support was shown to reach 89% and 85% (Max, D + 7) in cycle-C and cycle-D. The serum progesterone level in stimulated cycles revealed a rapid increase until D + 5, but it had an unstable pattern in cycle-C and cycle-D. It was shown that luteal support was necessary to offset the luteal phase defect caused by stimulation with hMG.
authors.affiliation: Department of Obstetrics and Gynecology, Okayama University Medical School.
authors.forename: I
authors.initials: I
authors.lastname: Shirakawa
mesh_terms: D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D004717:Endometrium / Q000000981:diagnostic imaging* / Q000473:pathology; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000000981:diagnostic imaging* / Q000473:pathology; D008596:Menotropins / Q000494:pharmacology*; D010060:Ovulation; D010062:Ovulation Induction; D011374:Progesterone / Q000097:blood; D014463:Ultrasonography
chemical_list: D006063:Chorionic Gonadotropin; D011374:Progesterone; D004958:Estradiol; D008596:Menotropins