Adnexal masses and pregnancy: a 12-year experience.

OBJECTIVE: Our purpose was to describe pregnancy-associated adnexal masses in eastern North Carolina. STUDY DESIGN: A retrospective study was performed of 60 adnexal masses resected during pregnancy at a regional referral hospital from January 1990 to March 2002. RESULTS: Adnexal masses occurred in 0.15% of pregnancies. Average gestational age at diagnosis and surgery was 12 and 20 weeks, respectively. Fifty percent of ovarian tumors were mature cystic teratomas, 20% were cystadenomas, and 13% were functional ovarian cysts. Malignancy occurred in 13%. Tumors with low malignant potential comprised 63% of malignancies. Average cyst size was 11.5 cm for malignancies and 7.6 cm for benign lesions (P value <.05). The preterm birth rate was 9%, the miscarriage rate was 4.7% after elective cases, and average Apgar scores were 7.5 and 8.7 at 1 and 5 minutes. CONCLUSION: The incidence of malignancy in pregnancy-associated adnexal masses was high. Ultrasonography detected internal excrescences in the majority of tumors with low malignant potential. Fetal outcomes were not affected.

Effects of hypergravity on ovarian-hypophyseal function in antepartum and postpartum rats.

BACKGROUND: Rats exposed to microgravity during the post-implantation phase of pregnancy had minimal alterations in ovarian and hypophyseal parameters during the antepartum and postpartum periods. In the current study, a similar parallel experimental design was employed to ascertain the effects of hypergravity on ovarian and hypophyseal function. HYPOTHESIS: We hypothesized that hypergravity exposure during the post-implantation stage of pregnancy would not alter antepartum and postpartum ovarian and hypophyseal function. METHODS: Pregnant rats were assigned to hypergravity (1.5 G, 1.75 G, or 2.0 G), rotational control, or stationary control groups (n = 10 each group) beginning on gestation day 11 and ending on day 20. Hypophyseal and ovarian analyses were conducted on 5 of the animals from each group at day 20. The remaining animals in each group were allowed to go to term and the same analyses were conducted 3 h postpartum. RESULTS: Hypergravity at all levels decreased the percent body mass gain from gestation day 11 to 20 (p < 0.05); however, the wet weight of the pituitaries and ovaries was not changed. There was no effect of hypergravity on the number of healthy or atretic antral follicles of any size at gestation day 20 or postpartum. The number of corpora lutea of pregnancy was decreased in all hypergravity groups, but the number of live fetuses at gestation day 20 or pups at term was not altered. Plasma concentrations of luteinizing hormone (LH), follicle stimulating hormone (FSH), prolactin, and progesterone were not changed at gestation day 20 or postpartum. Pituitary content of LH, FSH, and prolactin was not altered by hypergravity at gestation day 20, but LH content was significantly increased (p < 0.05) at 1.5 and 1.75 G postpartum. CONCLUSIONS: We conclude that hypergravity, up to and including 2.0 G, is compatible with maintenance of pregnancy and has minimal effects on hypophyseal parameters. Ovarian follicles are not altered by hypergravity, but corpora lutea may regress at a more rapid rate.