Maternal Serum Level of ACTH as a Predictive Marker of Preterm Labor in Patients With Threatened Preterm Labor

Study Overview
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Brief Summary
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The aim of this study is use of ACTH as a predictive marker in patients of threatened preterm labor .

Detailed Description
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This is a cross sectional study that will include 261 pregnant women aged between 17 and 35 years with singleton pregnancies between 28 and 36 completed weeks of gestation that had been diagnosed with threatened preterm labor and consented to participate in this study. This study will be conducted at Ain Shams University Maternity Hospital after approval of the research and ethics committee. the investigators include all patients which have these following criteria (Singleton pregnancy, Age between 17 - 35 years, Gestational age between 28 and 36 weeks and Diagnosis of threatened preterm labor is based on the American College of Obstetricians and Gynaecologists Guidelines (ACOG, 2003): Presence of uterine contractions (at least 4 in 20 minutes or 8 in 60 minutes), Cervical dilation > 1 and < 4 cm, and/or Cervical effacement ≥ 80%. the investigators exclude any patient which has any of the following criteria (Preterm rupture of membranes, Any uterine anomalies or cervical incompetence, Chronic illness such as chronic hypertension or kidney disease, Diabetes mellitus, Abruptio placenta, Preeclampsia and HELLP syndrome, Fetal anomalies, IUGR, Smoking or Clinical signs of intrauterine infection). blood sample was collected from each patient for measurement of ACTH level. According to local protocol in Ain Shams University Maternity Hospital all women will receive a fixed regimen of tocolysis in the form of nifedipine (Epilat) 10 mg orally every 15 minutes for the first hour or until cessation of uterine contractions. Then, 60 - 160 mg/day (1-2 tablets 3 times daily) of slowly releasing nifedipine (epilat retard 20 mg tablet) may be given depending on uterine activity. The patients will also receive 6 mg dexamethasone every 12 hours for 4 doses. All women will be followed up till delivery. After delivery, the investigators divide the patients into 2 groups (full term delivery & preterm delivery) and we compare between these 2 groups by level of hormone.

Official Title
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Maternal Serum Level of ACTH as a Predictive Marker of Preterm Labor in Patients With Threatened Preterm Labor

Conditions
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Threatened Preterm Labor

Intervention / Treatment
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* Other: collection of blood sample and tocolysis adminstration


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Singleton pregnancy. Age between 17 - 35 years. Gestational age between 28 and 36 weeks. Diagnosis of threatened preterm labor is based on the American College of Obstetricians and Gynaecologists Guidelines (ACOG, 2003): Presence of uterine contractions (at least 4 in 20 minutes or 8 in 60 minutes), Cervical dilation > 1 and < 4 cm, and/or Cervical effacement ≥ 80%. Exclusion Criteria: Preterm rupture of membranes. Any uterine anomalies or cervical incompetence. Chronic illness such as chronic hypertension or kidney disease. Diabetes mellitus. Abruptio placenta. Preeclampsia and HELLP syndrome. Fetal anomalies. IUGR. Smoking. Clinical signs of intrauterine infection eg (uterine tenderness, foul vaginal discharge, maternal pyrexia ≥ 38°C and/or maternal leucocytosis).

Ages Eligible for Study
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Minimum Age: 17 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| preterm group<br>pregnant healthy women aged from 17 to 35 who suffered from symptoms of threatened preterm labor in the form of Presence of uterine contractions (at least 4 in 20 minutes or 8 in 60 minutes), Cervical dilation > 1 and < 4 cm, and/or Cervical effacement ≥ 80%. collection of blood sample and tocolysis administration will be done this group will deliver preterm (before 37 weeks of gestation) | Other: collection of blood sample and tocolysis adminstration<br>* investigators will abtain a blood sample from all patient to measure the serum level of ACTH. all patients with threatened preterm labor will receive a fixed regimen of tocolysis in the form of nifedipine (Epilate) 10 mg orally every 15 minutes for the first hour or until cessation of uterine contractions. Then, 60 - 160 mg/day (1-2 tablets 3 times daily) of slowly releasing nifedipine (epilat retard 20 mg tablet) may be given depending on uterine activity. The patients will also receive 6 mg dexamethasone every 12 hours for 4 doses. All women will be followed up till delivery. After delivery, investigators devide the pateints into 2 groups (full term delivery & preterm delivery) and investigators compare between these 2 groups by level of hormone.<br>|
| full term group<br>pregnant healthy women aged from 17 to 35 who suffered from symptoms of threatened preterm labor in the form of Presence of uterine contractions (at least 4 in 20 minutes or 8 in 60 minutes), Cervical dilation > 1 and < 4 cm, and/or Cervical effacement ≥ 80%. collection of blood sample and tocolysis administration will be done this group will deliver full term (after 37 weeks of gestation) | Other: collection of blood sample and tocolysis adminstration<br>* investigators will abtain a blood sample from all patient to measure the serum level of ACTH. all patients with threatened preterm labor will receive a fixed regimen of tocolysis in the form of nifedipine (Epilate) 10 mg orally every 15 minutes for the first hour or until cessation of uterine contractions. Then, 60 - 160 mg/day (1-2 tablets 3 times daily) of slowly releasing nifedipine (epilat retard 20 mg tablet) may be given depending on uterine activity. The patients will also receive 6 mg dexamethasone every 12 hours for 4 doses. All women will be followed up till delivery. After delivery, investigators devide the pateints into 2 groups (full term delivery & preterm delivery) and investigators compare between these 2 groups by level of hormone.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Evaluate if ACTH Can be Used as a Predictive Marker for Preterm Labor | measurement of maternal serum ACTH in women daignosed as threatened preterm labor to evaluate if this hormone can be used as a predictive marker for preterm labor | 9 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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PTL, threatened preterm labor, ACTH