No abstract

We compared the efficacy and safety of estriol-containing vaginal pessary use with those of oral nitrofurantoin macrocrystal (NM) therapy for preventing urinary tract infection (UTI) in postmenopausal women with recurrent UTI. Over a period of 9 months, 86 women received an estriol-containing vaginal pessary (0.5 mg estriol) twice weekly, and 85 women received NM (100 mg) once daily. We recorded 124 episodes of UTI in women who received estriol-releasing pessaries and 48 episodes of UTI in women treated with NM (P=.0003). Twenty-eight women (32.6%) who received estriol had no episodes of UTI versus 41 women (48.2%) in the NM group. There was a significant increase in the number of superficial cells in women who received estriol, whereas in the NM group, no such changes occurred. However, there was no change in the extent of Lactobacillus colonization and in the vaginal pH in women who received estriol. Use of an estriol-containing pessary is less effective than oral NM therapy in the prevention of bacteriuria in postmenopausal women because of its failure to restore the population of lactobacilli and to reduce the vaginal pH in these women.

The characteristics were examined of 87 consecutive semen samples obtained from participants of an intra-uterine insemination (IUI) programme. The population investigated comprised 65 normozoospermic, 13 moderately oligozoospermic and nine severely oligozoospermic individuals. The samples were produced after 4 days abstinence for the first IUI and after a further day of abstinence for the second IUI. Semen volume, sperm concentration, total sperm count and total motile sperm count for the whole population decreased significantly between the first and second samples. The characteristics of the second sample were significantly decreased only for the normozoospermic group.

Fifty-five patients with non-vertex presentation at 37 to 40 weeks' gestation were evaluated to determine which factors were associated with a successful external cephalic version (ECV). Maternal parity, obesity, amniotic fluid volume, placental location, type of breech and position of fetal spine were analyzed. Only amniotic fluid volume and fetal weight were significantly associated with a successful version (p < 0.05), 40/55 (73%) were successfully converted, 36/55 (65%) were vertex at delivery, and 32/55 (58%) delivered vaginally. Version attempts were successful in six out of eight patients who had undergone a previous cesarean section. Two out of six of the successful version patients went on to have vaginal birth after cesarean section. We conclude that although ECV is a reasonable alternative in the management of pathological presentation near term it should be performed only when there is sufficient amniotic fluid volume.

The significantly lower proportion of TTTS found in IVF-conceived twins may suggest a different embryological process that lies at the core of IVF conception of monozygotic twinning.

To investigate the need for hormonal treatment in patients with functional ovarian cysts after induction of ovulation, a randomized prospective study was performed. Fifty-four patients who were found to have ovarian cysts after induction of ovulation were randomly assigned to two groups: a) Treatment with estrogen/progesterone. b) Expectant management. The main outcome measure was resolution of ovarian cysts. There was no significant difference between the groups. We conclude that hormonal treatment is not necessary in cases with functional ovarian cysts after induction of ovulation.

The antiestrogenic action of clomiphene citrate (CC) is claimed to have an adverse effect on the development of the secretory endometrium. This effect can be assessed: (1) sonographically by measuring endometrial thickness, and (2) by serum hormone levels. The aim of this study was to evaluate whether administering ethinyl estradiol (EE) during CC treatment has any effect on endometrial thickness and/or hormone levels. Seventeen patients were treated with CC for one cycle and with CC plus EE in an adjacent cycle either before or after. The patients were followed by daily assessment of endometrial thickness, follicular growth and serum estradiol levels as well as midluteal prolactin and progesterone levels. We did not find any significant difference in either endometrial thickness, estradiol level, midluteal prolactin or progesterone levels between the two treatment protocols. We conclude that exogenous EE, in the dosage used in this study, does not overcome CC-induced alterations in endometrial thickness.

To evaluate a random single Doppler study of the systolic to diastolic ratio of the umbilical artery as a predictor of perinatal outcome in diabetic pregnancies, a prospective double-blind study was performed in 92 diabetic pregnant women between 28 and 40 weeks of gestation. Main outcome measures were perinatal outcome: group A, normal outcome; group B, poor outcome. The sensitivity and specificity of the Doppler studies as a predictor of poor perinatal outcome were 39% and 92%, respectively. The positive and negative predictive values were 54% and 86%, respectively. Our results suggest that the systolic to diastolic ratio of the umbilical artery offers no advantage over other well-established tests in the management of diabetic pregnancies.