Short cervix: is a follow-up measurement useful?
Article first published online: 14 DEC 2006
Copyright © 2006 ISUOG. Published by John Wiley & Sons, Ltd.
Ultrasound in Obstetrics & Gynecology
Volume 29, Issue 1, pages 44–46, January 2007
How to Cite
Fox, N. S., Jean-Pierre, C., Predanic, M. and Chasen, S. T. (2007), Short cervix: is a follow-up measurement useful?. Ultrasound Obstet Gynecol, 29: 44–46. doi: 10.1002/uog.3902
- Issue published online: 3 JAN 2007
- Article first published online: 14 DEC 2006
- Manuscript Accepted: 23 AUG 2006
- cervical insufficiency;
- cervical length;
- preterm birth
To study if a repeat cervical length (CL) measurement in the patient already diagnosed with a short cervix has any additional value in the prediction of preterm delivery.
This was a retrospective study of singleton pregnancies with cervical lengths 1–25 mm at a gestational age of 16–28 weeks seen in our institution between 2002 and 2005. Patients who were managed expectantly and had a follow-up CL measurement within 3 weeks were included. Delivery data were obtained from the patients' computerized medical records.
Sixty-eight patients met the inclusion criteria. 37% of the patients had a shorter CL on the second measurement. These patients delivered at an earlier gestational age (36 + 4 vs. 38 + 2 weeks, P = 0.031) and were more likely to deliver at < 37 weeks (60% vs. 26%, P = 0.009). The change in the CL correlated with earlier gestational age at delivery and delivery at < 37 weeks.
In patients diagnosed with a short cervix, follow-up CL measurement is a strong predictor of preterm delivery. Greater change in the CL correlates with an earlier gestational age at delivery. In the patient diagnosed with a short cervix, a repeat measurement of CL gives additional predictive value. Copyright © 2006 ISUOG. Published by John Wiley & Sons, Ltd.