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- W2060766640 abstract "El objetivo de esta investigación es contribuir al conocimiento de la conducta motora fetal humana espontánea normal durante el 2.° trimestre de gestación. Se focaliza sobre 5 patrones de movimiento fetal: sobresaltos masivos (SM), ritmias axo-rizomélicas (RAR), estiramientos axiales (EA), movimientos generales (MG) y excursiones diafragmáticas (ED). Se ha observado la motricidad fetal espontánea, mediante ecografía obstétrica en 2 D, en una cohorte de 13 sujetos, en las semanas 12, 16, 20 y 24 de gestación. Constituye criterio de inclusión comprobar posteriormente la normalidad del estado neurológico neonatal a término y del desarrollo motor y cognitivo hasta la edad de 5 años. Los 5 patrones de movimiento citados se observan en todos los fetos durante el 2.° trimestre gestacional, pero su presencia y cualidad varían con la edad. Los movimientos fásicos SM y RAR son prominentes en las semanas 12 y 16 de gestación; en cambio, los movimientos prolongados EA y MG poseen mayor incidencia, duración, extensión y complejidad en las semanas 20 y 24. Las ED aumentan su incidencia a lo largo del 2.° trimestre, generalmente en series de 2-6 excursiones, con amplitud irregular. El ritmo cardiaco se acelera durante los periodos de movimiento fetal, frente al estado de reposo. Los 5 patrones de conducta estudiados ecográficamente reflejan el progresivo afinamiento de generadores de patrones motores en el sistema nervioso humano normal durante el 2.° trimestre de gestación. Llamamos la atención sobre las RAR, no diferenciadas en otros estudios. The aim of this research is to contribute to knowledge of the normal spontaneous motor behavior of the human fetus during the second trimester of pregnancy. This study focuses on five patterns of spontaneous fetal movement: startle (S), axo-rhizomelic rhythmia (ARR), axial stretching (AS), general movement (GM), and diaphragmatic contraction (DC). A cohort of 13 subjects was followed up using 2 D obstetrical ultrasound images at 12, 16, 20, and 24 weeks of gestation. As inclusion criteria, neonatal neurological examination and general movements after eutocic delivery at term were normal in all of the subjects, and their neuromotor and cognitive development until the end of pre-school age were also normal. All these five motor patterns are present at the beginning of the 2nd gestational trimester, but their quantitative and qualitative traits are diverse according to gestational ages. The phasic, isolated or rhythmically repeated movements, S and ARR, are prominent at 12 and 16 weeks of gestation, and then their presence gradually diminishes. By contrast, tonic and complex AS and GM movements increase their presence and quality at 20 and 24 weeks. RAR constitute a particular periodic motor pattern not described in previous literature. Moreover, the incidence of DC is progressive throughout the trimester, in clusters of 2-6 arrhythmic and irregular beats. Fetal heart rate increases during fetal motor active periods. All five normal behavioral patterns observed in the ultrasounds reflect the progressive tuning of motor generators in human nervous system during mid-pregnancy." @default.
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- W2060766640 date "2015-03-01" @default.
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- W2060766640 title "Motricidad fetal durante el segundo trimestre de gestación: estudio ecográfico longitudinal" @default.
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- W2060766640 doi "https://doi.org/10.1016/j.anpedi.2014.05.011" @default.
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