Can myometrial electrical activity identify patients in preterm labor?
| Autor: | Ilan Calderon, Ram Kerner, Orli Most, Oded Langer, Gal Ben David |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Adult
medicine.medical_specialty Preterm labor Logistic regression Sensitivity and Specificity Body Mass Index Uterine Contraction Fetus Obstetric Labor Premature Pregnancy Medicine Humans Prospective Studies Gynecology Fetal fibronectin Electrical impedance myography business.industry Obstetrics Premature labor Electromyography Myometrium Obstetrics and Gynecology Gestational age Fibronectins Logistic Models Female business Body mass index |
| Zdroj: | American journal of obstetrics and gynecology. 199(4) |
| ISSN: | 1097-6868 |
| Popis: | Objective The objective of the study was to determine whether myometrial electrical activity can differentiate false from true preterm labor. Study Design Electrical uterine myography (EUM) was measured prospectively on 87 women, gestational age less than 35 weeks. The period between contractions, power of contraction peaks and movement of center of electrical activity (RMS), was used to develop an index score (1-5) for prediction of preterm delivery (PTD) within 14 days of the test. The score was compared with fetal fibronectin (fFN) and cervical length (CL). Results Patients delivering within 14 days from testing showed a higher index and mean RMS ( P = .000). No patients with EUM index scores of 1-2 delivered in this time frame. Combining EUM with CL or fFN increased predictability. Logistic regression revealed that history of PTD and EUM index had 4- to 5-fold increased risk for PTD. Gestational age at testing, body mass index, fFN, and CL were nonsignificant contributors to PTD risk. Conclusion Measuring myometrial electrical activity may enhance identification of patients in true premature labor. |
| Databáze: | OpenAIRE |
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