Transvaginal Ultrasonographic Assessment of Cervical Length for Prediction of Preterm Delivery within 7 Days in Patients with Preterm Labor.
- Author:
Hee Ra JUNG
1
;
Kyung LEE
;
Myoung Hwan KIM
;
Ji Kyung KO
;
Chul Min LEE
;
Yong Kyoon CHO
;
Hoon CHOI
;
Bok Rin KIM
Author Information
1. Department of Obstetrics and Gynecology, Inje University, college of Medicine Sanggye Paik Hospital, Seoul, Korea. kjk@paik.ac.kr
- Publication Type:Original Article
- Keywords:
Transvaginal ultrasonography;
Cervical length;
Preterm delivery;
Preterm labor
- MeSH:
Cervical Length Measurement;
Female;
Gestational Age;
Humans;
Lipids;
Logistic Models;
Membranes;
Obstetric Labor, Premature;
Parity;
Pregnancy;
Quaternary Ammonium Compounds;
Risk Factors
- From:Korean Journal of Perinatology
2009;20(3):234-242
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To investigate the usefulness of transvaginal ultrasonographic measurement of cervical length in patients with preterm labor for prediction of preterm delivery within 7 days. METHODS: Cervical length was measured by transvaginal ultrasound in 140 women with singleton pregnancies presenting with preterm labor and intact membranes from 24(+0) to 33(+6) weeks of gestation. Other potential predictive factors, such as Bishop score, previous history of preterm delivery, and parity were assessed. RESULTS: The mean gestational age at presentation was 30.5+/-14.7 (range, 24.0 to 33.6) weeks and the mean cervical length was 29.0+/-0.9 (range, 31.0 to 52.1) mm. Delivery within 7 days occurred in 7.9% (11/140). Receiver-operating characteristics (ROC) curves established a cervical length of 25 mm as the most relevant cut off level for prediction of delivery within 7 days. Interval between admission and delivery was significantly short when ultrasonographic cervical length was less than or equal to 25 mm. Logistic regression analysis demonstrated that the significant independent risk factors were cervical length < or =25 mm (OR: 24.64, 95% Cl: 2.97~204.20, P=0.003). CONCLUSION: Ultrasonographic cervical length measurement is a useful tool for prediction of progression to preterm delivery within 7 days with patients with preterm labor.
