Cervical strain determined by ultrasound elastography and its association with spontaneous preterm delivery
| Autor: | Alma Aurioles-Garibay, Sonia S. Hassan, Maynor Garcia, Lami Yeo, Hyunyoung Ahn, Steven J. Korzeniewski, Edgar Hernandez-Andrade, Alyse G. Schwartz, Roberto Romero, Tinnakorn Chaiworapongsa |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
medicine.medical_specialty Adolescent Cervix Uteri Lower risk Article Young Adult Pregnancy medicine Humans Cervix Gynecology business.industry Obstetrics Obstetrics and Gynecology Gestational age Odds ratio medicine.disease Confidence interval Cervical Length Measurement Cross-Sectional Studies medicine.anatomical_structure Premature birth Pediatrics Perinatology and Child Health Elasticity Imaging Techniques Premature Birth Female Stress Mechanical business |
| Zdroj: | Journal of Perinatal Medicine. 42:159-169 |
| ISSN: | 1619-3997 0300-5577 |
| Popis: | Objective: To determine if there is an association between cervical strain, evaluated using ultrasound elastography, and spontaneous preterm delivery (sPTD) Methods: One hundred and eighty nine (189) women at 16–24 weeks of gestation were evaluated. Ultrasound elastography was used to estimate cervical strain in three anatomical planes: one mid-sagittal in the same plane used for cervical length measurement, and two cross sectional images: one at the level of the internal cervical os, and the other at the level of the external cervical os. In each plane, two regions of interest (endocervix and entire cervix) were examined; a total of six regions of interest were evaluated. Results: The prevalence of sPTD was 11% (21/189). Strain values from each of the six cervical regions correlated weakly with cervical length (from r=–0.24, Pth centile in the endocervical canal (0.19) and in the entire cervix (0.14) were 80% less likely to have a sPTD than women with strain values >25th centile [endocervical: odds ratio (OR) 0.2; 95% confidence interval (CI), 0.03–0.96; entire cervix: OR 0.17; 95% CI, 0.03–0.9]. Additional adjustment for gestational age, race, smoking status, parity, maternal age, pre-pregnancy body mass index, and previous preterm delivery did not appreciably alter the magnitude or statistical significance of these associations. Strain values obtained from the external cervical os and from the sagittal view were not associated with sPTD. Conclusion: Low strain values in the internal cervical os were associated with a significantly lower risk of spontaneous preterm delivery |
| Databáze: | OpenAIRE |
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