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Cervical Length Estimation and Cervicovaginal Fluid for Placental <i>α</i>-microglobulin 1 Testing to Screen Women Had Threatened Preterm Labor for Time till Spontaneous Labor

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Advances in Reproductive Sciences 2020年第1期8卷 57-70页

作者： Mohamed Kandil Abdelhaseib Salah Saad Alaa Masood Departments of Obstetrics & Gynecology Faculty of Medicine Menoufia University Shibin El Kom Egypt

Objectives: Evaluation of diagnostic performance of rapid testing of cervico-vaginal fluid (CVF) for fetal fibronectin (FFN) and placental α-microglobulin 1 (PAMG-1) as screening of women presented by threatened preterm labor (TPTL) with intact membranes for duration till getting spontaneous labor (SL). Patients & Methods: 37 women presenting with TPTL underwent CVF samplings before digital examination and then underwent transvaginal ultrasonography for estimation of cervical length (CL). All women received fluid and anxiolytic therapy and if uterine contractions persisted, all had received tocolytic therapy with oral nifedipine or intravenous magnesium sulphate according to requirements. Incidence of SL within Results: Incidence of SL was 13.5%, 35.2% and 51.3% within 48-hr, 2 - 7 and 7 - 14 days, respectively. Duration till labor after sampling was positively correlated with CL, while was negatively correlated with positive FFN and PAMG-1 tests. Positive FFN test had high specificity, while positive PAMG-1 test had high sensitivity for labor within 7 days. Regression analysis defined short CL and positive PAMG-1 test as significant predictors for short duration till SL. ROC curve analysis defined short cervix and positive PAMG-1 test as significant predictors for labor within 48-hr and within 2 - 7 days respectively and combined negative PAMG-1 test and CL of 20 - 25 mm were significant predictors for labor within 7 - 14 days. Conclusion: PAMG-1 test had high specificity, if positive, for predicting SL and high NPP, if negative, for excluding labor within 7 days, so it can be used as rapid adjuvant to clinical evaluation to help management decision-making. Moreover, PAMG-1 test is recommended screening test for being easy-to-use bedside test, provides rapid results, can be used after vaginal exam and coitus and does not require a speculum examination or specialized equipment to analyze results.

关键词： Threatened Preterm Labor Cervico-Vaginal Fluid Fetal Fibronectin Placental α-microglobulin 1 Screening Spontaneous Labor

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