Characteristics of Heart Rate Tracings in Preterm Fetus
| Autor: | Andrea Pinto-Ibáñez, Alberto Puertas-Prieto, Maria F. Hurtado-Sánchez, David Pérez-Melero, Juan Mozas-Moreno, Ernesto González-Mesa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Medicine (General) Cardiotocography electronic fetal monitoring Gestational Age Review Fetal heart rate R5-920 Fetus Second trimester Pregnancy Electronic fetal monitoring Heart rate medicine Humans fetal heart rate patterns Preterm fetus preterm fetus medicine.diagnostic_test Obstetrics business.industry Infant Newborn Gestational age fetal heart rate General Medicine Heart Rate Fetal Fetal heart rate patterns Pregnancy Trimester Second embryonic structures Gestation Female business |
| Zdroj: | Medicina Medicina, Vol 57, Iss 528, p 528 (2021) Digibug. Repositorio Institucional de la Universidad de Granada instname Digibug: Repositorio Institucional de la Universidad de Granada Universidad de Granada (UGR) |
| ISSN: | 1648-9144 |
| Popis: | We thank K. Shashok for translating the original manuscript into English. Background and Objectives: Prematurity is currently a serious public health issue worldwide, because of its high associated morbidity and mortality. Optimizing the management of these pregnancies is of high priority to improve perinatal outcomes. One tool frequently used to determine the degree of fetal wellbeing is cardiotocography (CTG). A review of the available literature on fetal heart rate (FHR) monitoring in preterm fetuses shows that studies are scarce, and the evidence thus far is unclear. The lack of reference standards for CTG patterns in preterm fetuses can lead to misinterpretation of the changes observed in electronic fetal monitoring (EFM). The aims of this narrative review were to summarize the most relevant concepts in the field of CTG interpretation in preterm fetuses, and to provide a practical approach that can be useful in clinical practice. Materials and Methods: A MEDLINE search was carried out, and the published articles thus identified were reviewed. Results: Compared to term fetuses, preterm fetuses have a slightly higher baseline FHR. Heart rate is faster in more immature fetuses, and variability is lower and increases in more mature fetuses. Transitory, low-amplitude decelerations are more frequent during the second trimester. Transitory increases in FHR are less frequent and become more frequent and increase in amplitude as gestational age increases. Conclusions: The main characteristics of FHR tracings changes as gestation proceeds, and it is of fundamental importance to be aware of these changes in order to correctly interpret CTG patterns in preterm fetuses. |
| Databáze: | OpenAIRE |
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