2018, Number 3
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Arch Inv Mat Inf 2018; 9 (3)
Relation between absence of fetal breathing movements and the presence of preterm delivery
Martínez ALM, Moreno SAA, Briones VC, Díaz de León PMA, Briones GJC
Language: Spanish
References: 30
Page: 85-90
PDF size: 114.12 Kb.
ABSTRACT
Objective: The aim of this study is to examine the relation between of absence of fetal breathing movements (FBM) and the presence of preterm delivery.
Material and methods: We designed a prospective and descriptive study. The study group involved 120 hospitalized women with singleton pregnancies and threatened preterm labor between 24 and 36 weeks of gestation in a tertiary care hospital. Women were recruited for a single ultrasonography test to assess fetal FBM. We evaluated the presence of preterm birth within seven days of testing.
Results: FBM were observed in 86 patients and considered absent in the remaining 34 patients. In those pregnancies with absent FBM, true labor with subsequent delivery occurred in 26 patients. Of the 86 pregnancies with FBM present, 83 continued for greater than seven days. We used χ
2 to demonstrate that the absence of fetal breathing movement is a reliable indicator of preterm delivery (p less than 0.05). The observed sensitivity was 89.7%, specificity 91.2%, positive predictive value 76.5% and negative predictive value of 96.5%. The relative risk of preterm delivery according to the absence of FBM was 10.10 (95% CI 5.2-19.9).
Conclusions: Ultrasonographic identification of absence of fetal breathing movements provides predictive information on the presence of preterm delivery and may be helpful in differentiating between true and false preterm labor.
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