Comparative longitudinal study of cervical length and induced shortening changes among singleton, twin, and triplet pregnancies.

Objective: To compare cervical length and induced shortening changes during gestation among singleton, twin, and triplet pregnancies.

Study Design: Thirty-two healthy gravidas (12 singleton, 13 twin, and 7 triplet pregnancies) between 17 and 20 weeks' gestation were prospectively enrolled in this longitudinal investigation of cervical length. Serial transperineal cervical length ultrasound assessments were made weekly until 34 weeks' gestation under 3 conditions: 1) supine, 2) supine with the Valsalva maneuver, and 3) standing.

Atypical glandular cells of undetermined significance. Review of final histologic diagnoses.

Objective: To review recent literature that examines the histologic characterization of women with atypical glandular cells of undermined significance (AGUS) on a Pap smear.

Study Design: The English-language literature published between January 1995 and April 2000 was reviewed. The MEDLINE database and the search terms atypical glandular cells of undetermined significance and AGUS were used.