Transvaginal sonography: comparative study of follicular monitoring between different ovarian stimulatory protocols in cases of oligomenorrhoea

ABSTRACT

The objective of this study was to compare the effects of different ovarian stimulatory protocols on ovulation in infertile women with oligomenorrhea. A total of 100 infertile women was examined by 2D intravaginal sonography and divided into five groups, each included 20 cases, according to the drug used in the induction of ovulation. An evaluation of follicular growing responses was done mainly by five parameters; the number of growing follicles in each ovary, pattern of follicular growth, rate of follicular development, day of maximum follicular growth and the maximum follicular diameter. Regarding the number of induced follicles, group III [clomiphene citrate + HMG] and group IV [HMG] had a significant higher mean number of follicles [6.1 +/- 3.2 and 4.6 +/- 2.9, respectively] compared with the other three groups. The pattern of follicular growth and rate of follicular development were symmetrical and synchronous, respectively, in group I and II and asymmetrical and asynchronous, respectively, in group III, IV and V