The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2013
Myometrial elasticity determined by elastosonography to predict preterm labor.
Клиническое исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Ozkaya Enis, Tosun Alptekin, Korkmaz Vakkas, Kucuk Emine, Sengul Demet, Kucukozkan Tuncay
Аннотация
AIM: To determine the utility of elastosonography (ES) combined to cervical length measurement to predict preterm labor.
METHODS: One hundred twenty-seven women with pregnancies between 21 to 36 weeks of gestation without any risk factor for preterm labor were included in the study. All subjects underwent sonographic evaluation including fetal biometry, cervical length measurement and ES of uterine myometrium. Subcutaneous tissue was the reference point for ES evaluation. Tissue strain ratio values were obtained from all patients.
RESULTS: Cervical length was a significant predictor for preterm delivery (AUC = 0.958, p < 0.001). Optimal cut-off value was obtained at 30 mm with 92% sensitivity and 81% specificity. Elastosonographic strain ratio was also a significant predictor for preterm delivery (AUC = 0.827, p < 0.001). Optimal cut-off value was obtained at 4.7 with 79% sensitivity and 91% specificity. In linear regression analysis, strain ratio (R(2 )= 0.61, beta = 0.171, p = 0.03) and cervical length (R(2 )= 0.61, beta = -0.516, p < 0.001) were significantly associated with preterm delivery. Cervical length < 30 mm [39.1 (95 CI, 6.6-231.5, p < 0.001)] and strain ratio > 4.7 [24.5 (95 CI, 4.1-146.5, p < 0.001)] were the risk factors for preterm delivery.
CONCLUSION: Elastosonographic evaluation of uterine myometrium was found to be significantly correlated with cervical length but cervical length measurement is a better predictor for preterm labor than ES.
METHODS: One hundred twenty-seven women with pregnancies between 21 to 36 weeks of gestation without any risk factor for preterm labor were included in the study. All subjects underwent sonographic evaluation including fetal biometry, cervical length measurement and ES of uterine myometrium. Subcutaneous tissue was the reference point for ES evaluation. Tissue strain ratio values were obtained from all patients.
RESULTS: Cervical length was a significant predictor for preterm delivery (AUC = 0.958, p < 0.001). Optimal cut-off value was obtained at 30 mm with 92% sensitivity and 81% specificity. Elastosonographic strain ratio was also a significant predictor for preterm delivery (AUC = 0.827, p < 0.001). Optimal cut-off value was obtained at 4.7 with 79% sensitivity and 91% specificity. In linear regression analysis, strain ratio (R(2 )= 0.61, beta = 0.171, p = 0.03) and cervical length (R(2 )= 0.61, beta = -0.516, p < 0.001) were significantly associated with preterm delivery. Cervical length < 30 mm [39.1 (95 CI, 6.6-231.5, p < 0.001)] and strain ratio > 4.7 [24.5 (95 CI, 4.1-146.5, p < 0.001)] were the risk factors for preterm delivery.
CONCLUSION: Elastosonographic evaluation of uterine myometrium was found to be significantly correlated with cervical length but cervical length measurement is a better predictor for preterm labor than ES.