Obgyn Key

Fig. 16.1 Luteinizing hormone and human chorionic gonadotropin molecules. (a) LH is a glycoprotein with two subunits, the alpha subunit (red), similar to that of FSH and hCG with two…

Fig. 7.1 Conventional step-up protocol Step-Down Protocol This regimen attempts to reproduce the normal physiological negative feedback of FSH where the development of a dominant follicle results in the rising…

Fig. 28.1 (a) Case of right infundibulopelvic ligament with surface endometriosis. (b) Brownish multiple areas of superficial peritoneal endometriosis in the pelvis “Excision or ablation of endometriotic lesions plus adhesiolysis…

Fig. 37.1 Pathogenesis of OHSS Numerous factors acting directly or indirectly via VEGF, including interleukins, cytokines, angiotensin II, insulin-like growth factor 1 (IGF-1), etc. may be involved [9–11]. Some studies…

Fig. 2.1 Pre IVF evaluation and investigation chart Fig. 2.2 Infertility workup chart 2.3.1 Antral Follicle Count Antral follicle count (AFC) is the number of antral follicles present in the…

Fig. 38.1 Ultrasonography showing triplets Fig. 38.2 Ultrasonography showing transvaginal fetal reduction by injecting intracardiac potassium chloride Advantages of transvaginal procedure. The procedure is feasible at an earlier gestational age….

Fig. 9.1 Amino acid sequence of native GnRH Position 6 is involved in enzymatic cleavage. Positions 2 and 3 are involved in gonadotropin release, and positions 1, 6 and 10…

Fig. 36.1 Percent of zygotes entering syngamy at 25 hpi for donor oocytes (42 cycles/462 zygotes), standard IVF patient <38 (94 cycles/864 zygotes), advanced maternal age >38 (76 cycles/479 zygotes),…

Location Type Amino acid involved Effect Reference Exon 3 Missense Gln54 to Arg Absence of spontaneous puberty in male Weiss et al. (1992) [17] Exon 2 Missense Trp8 Arg Ile15…

Fig. 10.1 Structure of the native GnRH and GnRH antagonist Fig. 10.2 Neuroendocrine axis. LH luteinizing hormone, FSH follicle stimulating hormone GnRH antagonists suppress gonadotropin secretion by competing with GnRH…