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1.
Rev. chil. obstet. ginecol ; 80(3): 221-228, jun. 2015. tab
Article in Spanish | LILACS | ID: lil-752871

ABSTRACT

ANTECEDENTES: Los niños nacidos entre las 34 0/7 y 36 6/7 semanas se denominan prematuros tardíos (PT), constituyen 5-7% de los nacidos y poseen mayor morbimortalidad que los niños de término. OBJETIVO: Analizar las causas de partos PT en nuestra institución. Comparar morbilidad neonatal de nacidos PT y de término. MÉTODOS: Estudio de cohorte retrospectivo. Se revisan registros de nacimientos entre enero de 2009 y diciembre de 2012 identificando los nacidos vivos entre las 34 0/7 y 36 6/7 y entre las 39 0/6 y 40 6/7 semanas. Se identifica grupo clínico de parto prematuro al que pertenecen. Se compara frecuencia de resultados perinatales de nacidos PT y de término completo. RESULTADOS: En el período estudiado nacieron 8.890 niños vivos. Tasa de partos PT fue 7,49% (n = 666). El 64,11% fue por causa idiopática o asociado a rotura de membranas y 35,89% por indicación médica. Dentro del grupo de indicaciones médicas un 19,25% de interrupciones no están basadas en evidencia y ninguna puramente electiva. Los PT, comparados con niños de término, tienen más riesgo de hospitalización y morbilidad neonatal; este riesgo es mayor a menor edad gestacional. CONCLUSIONES: En nuestro hospital 1 de cada 5 PT pudo haber nacido a una edad gestacional mayor, lo que podría haber evitado los riesgos perinatales asociados. Se sugiere que las instituciones de salud analicen las causas de interrupciones del embarazo en el grupo de PT, lo que podría ser un indicador de calidad obstétrica.


BACKGROUND: Children born between 34 0/7 and 36 6/7 weeks of gestation are called late-preterm infants. Represent 5 to 7% of live births and they are at higher risk of morbidity and mortality than term infants. OBJECTIVE: To analyze causes of late preterm births in our institution. To compare neonatal morbidity in late-preterm and term infants. METHODS: A retrospective cohort study. Birth records between January 2009 and December 2012 were reviewed identifying live births between 34 0/7 and 36 6/7 and between 39 0/6 and 40 6/7 weeks of gestation. Clinical group of preterm labor to which they belong was identified. Frequency of perinatal outcomes of late-preterm and term infants were compared. RESULTS: In the period under study there were 8890 live birth. The late-preterm birth rate was 7.49% (n = 666); 64.11% of them was idiopathic in cause or associated with rupture of membranes and 35.89% was for medical indication. In the group of medical indications 19.25% of the interruptions were not based on evidence and none were purely elective. Late-preterm infants have higher risk of hospitalization and neonatal morbidity than term infants; this risk is higher at earlier gestational ages. CONCLUSIONS: In our hospital 1 in 5 late-preterm birth could have been born at higher gestational age, preventing perinatal risks. It is suggested that health institutions analyze causes of interruption of pregnancy in the late-preterm group, which could constitute an indicator of obstetric quality.


Subject(s)
Humans , Female , Pregnancy , Infant, Premature, Diseases/epidemiology , Infant, Premature , Pregnancy Outcome , Chile , Causality , Retrospective Studies , Cohort Studies , Morbidity , Gestational Age , Live Birth , Infant, Premature, Diseases/etiology , Obstetric Labor, Premature/etiology , Obstetric Labor, Premature/epidemiology
2.
Rev. chil. pediatr ; 83(4): 359-365, ago. 2012. ilus, tab
Article in Spanish | LILACS | ID: lil-657729

ABSTRACT

Introduction: Recent studies show that moderately and late preterm infants (MLI) (Gestational age (GA) 32 to 36(6)), are in high risk for delayed psychomotor development (PMD) and learning disabilities. Objective: To compare PMD between MLI and full term infants (FTI) and to analyze associated perinatal risk factors. Methodology: 131 MLI and 119 FTI were recruited between May 2008 and April 2011 in a private health center in Santiago, Chile. Both groups were compared according to age, gender and socio-economic level. At the ages of 8, 18 and 30 months the children were evaluated by means of the Bayley III Scale for Infantile Development 3rd edition (BAYLEY-III). PMD was compared in both groups and multiple lineal regression analysis was performed. Results: MLI showed a significantly lower development coefficient, but it matched the FTI when corrected by GA, (99 +/- 10.4 versus 100.8 +/- 9.9). Even with corrected GA, the cognitive performance was lower (98 +/- 10.4 vs 103.1 +/- 11.4 p < 0.05). Multiple lineal regressions showed that GA and gender were associated with lower cognitive development. Conclusion: Cognitive performance of MLI was below that of FTI. This increases the need to have especial standards of care and stimulation for these children.


Introducción: Estudios recientes refieren que los prematuros moderados y tardíos (PMT) (Edad Gestacional (EG) 32 a 36(6)), presentan un elevado riesgo de retraso del desarrollo psicomotor (DSM) y dificultades de aprendizaje. Objetivo: Comparar el DSM entre niños nacidos PMT y recién nacidos de término (RNT) y analizar los factores de riesgo perinatal asociados. Metodología: En un centro de salud de Santiago de Chile, entre mayo 2008 y abril 2011, se reclutaron 131 PMT y 119 RNT, pareados por edad, género y nivel socioeconómico. A los 8, 18 o 30 meses se les aplicó la Escala de Bayley III de Desarrollo Infantil-3ª edición. Se comparó el DSM entre los dos grupos y se implementó una regresión lineal múltiple. Resultados: Los PMT presentaron un coeficiente de desarrollo significativamente inferior al no corregir EG, equiparándose con los RNT al corregirla (99 +/- 10,4 vs 100,8 +/- 9,9). Aún con EG corregida, el desempeño cognitivo fue inferior (98 +/- 10,4 vs 103,1 +/- 11,4 p < 0,05). En la regresión lineal múltiple el género y la EG se asociaron con menor desarrollo cognitivo. Conclusión: El desempeño cognitivo de los PMT fue inferior a los RNT. Se plantea la importancia de implementar un estándar de cuidado y estimulación para este grupo de niños.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Developmental Disabilities/epidemiology , Infant, Premature , Cognition Disorders/epidemiology , Child Development , Chile , Developmental Disabilities/etiology , Gestational Age , Linear Models , Motor Activity , Prospective Studies , Risk Factors , Sex Factors , Socioeconomic Factors , Cognition Disorders/etiology
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